NVIDIA Kepler (K20) from 134MHash/s to 330MHash/s with CUDA

[psychocoder]

Hi,

Summary of informations from this thread:

Reposetory with my changes for rpcminer-mod (only Cuda): https://github.com/psychocoderHPC/rpcminer-mod
Reposetory with all changes and windows support (CUDA und OpenCL) (administrated by charliemaggot): https://github.com/cdmackie/rpcminer-mod

Known CUDA Errors unter Windows:
- cudart32_50.dll or cudart32_50.dll is missing    -> install https://developer.nvidia.com/cuda-downloads to solve this problem
- bitcoinminercuda.cpp:174 crash -> this means that the kernel run longer than windows allow, to solv this add the paramter -gpugrid 256 or other number to the parameters

Original Post:

I have changed the code of rpcminer-mod https://github.com/Ang3lus/rpcminer-mod a little bit thus we get better performance on Kepler GPUs.
First, since cuda 5.0 we have a rotated function inside of the ptx (parallel asm), we must not add this by hand because the compiler find it automaticly.

Example: (((x ) >> bits) | (x << (32 - bits))) is compiled to ptx command shf.l.wrap.b32

Note: The changes are not comatible with the opencl version, I only change the cuda source. In CMAKEList.txt is hard coded that sm_35 (Kepler code) is created.

Run new code with this parameter: -gpu=0  -aggression=8 -gpugrid=2048 -gputhreads=256

To install the patch in your code goto root of the project and run $  patch -p1 < patch.txt

Now you get over 300MHash/s out of a Kepler GPU, I think that GTX Kepler GPUs are faster than K20 HPC version. It can be that you must use sm_30 for GTX Kepler GPUs.

[EDIT:] for 330MHash/s the GPU needs 138 Watt power.

psychocoder

patch.txt

Code:

diff -Naur ./cmake-rpcminer/CMakeLists.txt ../../rpcminer-cuda_svn//cmake-rpcminer/CMakeLists.txt
--- ./cmake-rpcminer/CMakeLists.txt	2013-01-28 19:27:46.000000000 +0100
+++ ../../rpcminer-cuda_svn//cmake-rpcminer/CMakeLists.txt	2013-04-01 11:22:19.000000000 +0200
@@ -32,6 +32,10 @@
 
 IF(BITCOIN_ENABLE_CUDA)
 	ADD_DEFINITIONS(-D_BITCOIN_MINER_CUDA_)
+	#SET(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} -gencode=arch=compute_20,code=sm_20 -gencode=arch=compute_35,code=sm_35)
+	SET(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} -gencode=arch=compute_35,code=sm_35  -Xptxas=-v -Xopencc=-LIST:source=on)
+	#SET(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} -gencode=arch=compute_13,code=sm_13 -Xptxas=-v -Xopencc=-LIST:source=on)
+
 	CUDA_ADD_EXECUTABLE(rpcminer ${BITCOIN_RPC_MINER_SRC} ${BITCOIN_RPC_MINER_CUDA_SRC})
 	# Install generated PTX CUDA module
 	INSTALL(FILES "${CMAKE_CURRENT_BINARY_DIR}/${generated_file_basename}.ptx" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}/rpcminer-cuda" RENAME "bitcoinminercuda.ptx")
diff -Naur ./patch.txt ../../rpcminer-cuda_svn//patch.txt
--- ./patch.txt	2013-04-01 11:30:47.000000000 +0200
+++ ../../rpcminer-cuda_svn//patch.txt	1970-01-01 01:00:00.000000000 +0100
@@ -1,14 +0,0 @@
-diff -Naur ./cmake-rpcminer/CMakeLists.txt ../../rpcminer-cuda_svn//cmake-rpcminer/CMakeLists.txt
---- ./cmake-rpcminer/CMakeLists.txt	2013-01-28 19:27:46.000000000 +0100
-+++ ../../rpcminer-cuda_svn//cmake-rpcminer/CMakeLists.txt	2013-04-01 11:22:19.000000000 +0200
-@@ -32,6 +32,10 @@
- 
- IF(BITCOIN_ENABLE_CUDA)
- 	ADD_DEFINITIONS(-D_BITCOIN_MINER_CUDA_)
-+	#SET(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} -gencode=arch=compute_20,code=sm_20 -gencode=arch=compute_35,code=sm_35)
-+	SET(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} -gencode=arch=compute_35,code=sm_35  -Xptxas=-v -Xopencc=-LIST:source=on)
-+	#SET(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} -gencode=arch=compute_13,code=sm_13 -Xptxas=-v -Xopencc=-LIST:source=on)
-+
- 	CUDA_ADD_EXECUTABLE(rpcminer ${BITCOIN_RPC_MINER_SRC} ${BITCOIN_RPC_MINER_CUDA_SRC})
- 	# Install generated PTX CUDA module
- 	INSTALL(FILES "${CMAKE_CURRENT_BINARY_DIR}/${generated_file_basename}.ptx" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}/rpcminer-cuda" RENAME "bitcoinminercuda.ptx")
diff -Naur ./src/cuda/bitcoinminercuda.cpp ../../rpcminer-cuda_svn//src/cuda/bitcoinminercuda.cpp
--- ./src/cuda/bitcoinminercuda.cpp	2013-01-28 19:27:46.000000000 +0100
+++ ../../rpcminer-cuda_svn//src/cuda/bitcoinminercuda.cpp	2013-04-01 11:22:30.000000000 +0200
@@ -290,6 +290,8 @@
 	{
 		AllocateResources(m_numb,m_numt);
 	}
+	m_out[0].m_bestnonce=0;
+	cuMemcpyHtoD(m_devout,m_out,/*m_numb*m_numt*/sizeof(cuda_out));
 
 	cuMemcpyHtoD(m_devin,m_in,sizeof(cuda_in));
 
@@ -319,11 +321,11 @@
 	cuFuncSetBlockShape(m_function,m_numt,1,1);
 	cuLaunchGrid(m_function,m_numb,1);
 
-	cuMemcpyDtoH(m_out,m_devout,m_numb*m_numt*sizeof(cuda_out));
+	cuMemcpyDtoH(m_out,m_devout,/*m_numb*m_numt*/sizeof(cuda_out));
 
 	// very unlikely that we will find more than 1 hash with H=0
 	// so we'll just return the first one and not even worry about G
-	for(int i=0; i<m_numb*m_numt; i++)
+	for(int i=0; i<1/*m_numb*m_numt*/; i++)
 	{
 		if(m_out[i].m_bestnonce!=0)// && m_out[i].m_bestg<bestg)
 		{
diff -Naur ./src/cuda/bitcoinminercuda.cu ../../rpcminer-cuda_svn//src/cuda/bitcoinminercuda.cu
--- ./src/cuda/bitcoinminercuda.cu	2013-01-28 19:27:46.000000000 +0100
+++ ../../rpcminer-cuda_svn//src/cuda/bitcoinminercuda.cu	2013-04-01 11:22:30.000000000 +0200
@@ -18,20 +18,31 @@
 
 #include "cudashared.h"
 
-#define byteswap(x) (((x>>24) & 0x000000ff) | ((x>>8) & 0x0000ff00) | ((x<<8) & 0x00ff0000) | ((x<<24) & 0xff000000))
-#define rotateright(x,bits) (((x & 0xffffffff) >> bits) | (x << (32 - bits)))
-#define R(x) (work[x] = (rotateright(work[x-2],17)^rotateright(work[x-2],19)^((work[x-2]&0xffffffff)>>10)) + work[x -  7] + (rotateright(work[x-15],7)^rotateright(work[x-15],18)^((work[x-15]&0xffffffff)>>3)) + work[x - 16])
+#define rotateright(x,bits) (((x ) >> bits) | (x << (32 - bits)))
+
+#define R(x) (work[x] = (rotateright(work[x-2],17)^rotateright(work[x-2],19)^((work[x-2])>>10)) + work[x -  7] + (rotateright(work[x-15],7)^rotateright(work[x-15],18)^((work[x-15])>>3)) + work[x - 16])
+
 #define sharound(a,b,c,d,e,f,g,h,x,K) {t1=h+(rotateright(e,6)^rotateright(e,11)^rotateright(e,25))+(g^(e&(f^g)))+K+x; t2=(rotateright(a,2)^rotateright(a,13)^rotateright(a,22))+((a&b)|(c&(a|b))); d+=t1; h=t1+t2;}
 
-extern "C" __global__ void cuda_process(cuda_in *in, cuda_out *out, const unsigned int loops, const unsigned int bits)
+extern "C" __global__ void cuda_process(cuda_in __restrict__ *in, cuda_out __restrict__ *out, const unsigned int loops, const unsigned int bits)
 {
+  /*variable to check if any other block has a solution*/ 
+  __shared__ unsigned int canExit;
+  if(threadIdx.x==0)
+	canExit=out[0].m_bestnonce;
+  __syncthreads();
+  /*exit as fast as posible if one block has finished with solution*/
+  if(canExit!=0) return;
+
 
   unsigned int work[64];
   unsigned int A,B,C,D,E,F,G,H;
 	const unsigned int myid=(blockIdx.x*blockDim.x+threadIdx.x);
 	const unsigned int nonce=in->m_nonce + (myid << bits);
 	unsigned int t1,t2;
-	unsigned int bestnonce=0;
+	//unsigned int bestnonce=0;
+	
+
 	//unsigned int bestg=~0;
 	
 	unsigned int* in_m_AH = in->m_AH;
@@ -40,46 +51,42 @@
   unsigned int in_m_nbits = in->m_nbits;
 	
 	// the first 3 rounds we can do outside the loop because they depend on work[0] through work[2] which won't change
-	unsigned int A1,B1,C1,D1,E1,F1,G1,H1;
-	A1=in_m_AH[0];
-	B1=in_m_AH[1];
-	C1=in_m_AH[2];
-	D1=in_m_AH[3];
-	E1=in_m_AH[4];
-	F1=in_m_AH[5];
-	G1=in_m_AH[6];
-	H1=in_m_AH[7];
-	sharound(A1,B1,C1,D1,E1,F1,G1,H1,in_m_merkle,0x428A2F98);
-	sharound(H1,A1,B1,C1,D1,E1,F1,G1,in_m_ntime,0x71374491);
-	sharound(G1,H1,A1,B1,C1,D1,E1,F1,in_m_nbits,0xB5C0FBCF);
-    
-    #pragma unroll 1
-	for(unsigned int it=0; it<loops; it++)
+	/* move old A1, ... H1 to shared to solve registers
+	 * can also calculated on host and give to kernel, because its se same for all threads and blocks 
+	 */
+	__shared__ unsigned int AH[8];
+	__shared__ unsigned int AH2[8]; //cache for second round
+	if(threadIdx.x<8)
+	{
+	  AH2[threadIdx.x]=AH[threadIdx.x]=in_m_AH[threadIdx.x];
+	}
+	__syncthreads();
+	if(threadIdx.x==0)
+	{
+	sharound(AH[0],AH[1],AH[2],AH[3],AH[4],AH[5],AH[6],AH[7],in_m_merkle,0x428A2F98);
+	sharound(AH[7],AH[0],AH[1],AH[2],AH[3],AH[4],AH[5],AH[6],in_m_ntime,0x71374491);
+	sharound(AH[6],AH[7],AH[0],AH[1],AH[2],AH[3],AH[4],AH[5],in_m_nbits,0xB5C0FBCF);
+	}
+	__syncthreads();
+
+        #pragma unroll 1
+	for(unsigned int it=0; it<loops; ++it)
 	{
-		/*
-		A=in_m_AH[0];
-		B=in_m_AH[1];
-		C=in_m_AH[2];
-		D=in_m_AH[3];
-		E=in_m_AH[4];
-		F=in_m_AH[5];
-		G=in_m_AH[6];
-		H=in_m_AH[7];
-		*/
-		A=A1;
-		B=B1;
-		C=C1;
-		D=D1;
-		E=E1;
-		F=F1;
-		G=G1;
-		H=H1;
+		if(out[0].m_bestnonce!=0) return;
 		
+		A=AH[0];
+		B=AH[1];
+		C=AH[2];
+		D=AH[3];
+		E=AH[4];
+		F=AH[5];
+		G=AH[6];
+		H=AH[7];
 		work[0]=in_m_merkle;
 		work[1]=in_m_ntime;
 		work[2]=in_m_nbits;
 		//work[3]=byteswap(nonce+it);
-		work[3]=nonce + it;
+		work[3]=nonce +it;
 		work[4]=0x80000000;
 		work[5]=0x00000000;
 		work[6]=0x00000000;
@@ -160,14 +167,14 @@
 		
 		// hash the hash now
 		
-		work[0]=in_m_AH[0]+A;
-		work[1]=in_m_AH[1]+B;
-		work[2]=in_m_AH[2]+C;
-		work[3]=in_m_AH[3]+D;
-		work[4]=in_m_AH[4]+E;
-		work[5]=in_m_AH[5]+F;
-		work[6]=in_m_AH[6]+G;
-		work[7]=in_m_AH[7]+H;
+		work[0]=AH2[0]+A;
+		work[1]=AH2[1]+B;
+		work[2]=AH2[2]+C;
+		work[3]=AH2[3]+D;
+		work[4]=AH2[4]+E;
+		work[5]=AH2[5]+F;
+		work[6]=AH2[6]+G;
+		work[7]=AH2[7]+H;
 		work[8]=0x80000000;
 		work[9]=0x00000000;
 		work[10]=0x00000000;
@@ -258,13 +265,15 @@
 
 		if((H==0))// && (G<=bestg))
 		{
-			bestnonce=nonce+it;
+			//bestnonce=nonce+it;
+			atomicExch(&(out[0].m_bestnonce),nonce+it); /*we only need one solution*/
+			
 			//bestg=G;
 		}
 
    }
     
-    out[myid].m_bestnonce=bestnonce;
+    //out[myid].m_bestnonce=bestnonce;
     //out[myid].m_bestg=bestg;
 
 }

[1715036839]

1715036839

[1715036839]

1715036839

[1715036839]

1715036839

[wumpus]

Nice find, so NVidia finally has a rotate instruction

[philips]

Watching 

[niooron]

Now difficulty will explode even more.

[goxed]

good news for nvidia camp

[coastermonger]

Wow, can you imagine if this were distributed a year ago? 

Now I just have to figure out if I can run this inside 50miner, or if I have to use cgminer...

[relm9]

I've got a GTX Titan I could test this on - though, is there a version of this that compiles easily on Windows? The one the OP linked is Linux only.

[philips]

Wow, can you imagine if this were distributed a year ago? 

Now I just have to figure out if I can run this inside 50miner, or if I have to use cgminer...

Maybe is not too late for Nvidia cards though...there is also this guy:
https://bitcointalk.org/index.php?topic=160057.0

[psychocoder]

@relm9: No I have winows version, I only programm linux. I exit my bitcoin winter sleep to performe the NVIDIA GPU bitcoin mining process. I have now windows PC with K20 or Titan and therefore I can't test this with a winows miner.

@philips: Thanks for the last link, I look in if I can get some more performance.

[ssateneth]

Please compile and build for windows. No clue what to do with source. I can only click stuff.

[wndrbr3d]

Well I feel vindicated 

https://bitcointalk.org/index.php?topic=142270.0

[psychocoder]

Not all performance came from the shift function. Most performance came from reducing registers per thread.

Before I start one threads needed 114 32Bit register (134 MHash/s)
After change the code thus we use shift operation we needed 95 32Bit register (~200MHash/s)
And after add shared memory we only need 46 registers. That means we can run 5 Block with 256 threads per streaming multiprocessor and we get 330 MHash/s.

At the moment I work on a version with over 400 MHash/s but I have some problems that the mining pool not count all my solutions.

If I have time I look if I can create a windows version.
 

[Marrs]

Not all performance came from the shift function. Most performance came from reducing registers per thread.

Based on that, do you believe your changes should provide benefit to all nVidia hardware, not just Kepler-based boards?

[crazyates]

Soo... still about the same as a $75 5830. GJ!

[mitty]

Soo... still about the same as a $75 5830. GJ!

True, but this is pretty big for people who already own Nvidia cards and can now mine more efficiently with them.

[wndrbr3d]

Based on that, do you believe your changes should provide benefit to all nVidia hardware, not just Kepler-based boards?

The shift functions are only available on Kepler based GPU's, -but- the other optimizations he has worked in there could give non-Kepler based cards the ~200Mhash performance.

[kpriess]

I would appreciate if you could compile the Windows' binaries..
Most nvidia users are on Windows due to well, directx..

[Evan]

I will give  .25BTC for a Windows version to be created and maintained.... I have 37 nvidia cards that are BEGGING TO BE WORKED

[Jay_Pal]

Based on that, do you believe your changes should provide benefit to all nVidia hardware, not just Kepler-based boards?

The shift functions are only available on Kepler based GPU's, -but- the other optimizations he has worked in there could give non-Kepler based cards the ~200Mhash performance.

I'd love to test this on my rig but I don't know if it would be ever possible since it has an onboard GeForce 8200 that used to give ~20Mh/s, but never been able to use or even see it after plugging an ATI Radeon 5550.

Would it be any way I could "see" this device listed on lspci and have it working to mine with this patch?

[Evan]

I will give  .25BTC for a Windows version to be created and maintained.... I have 37 nvidia cards that are BEGGING TO BE WORKED

I'll compile it for Windows, if it compiles for Windows.

EDIT: Ugh, cmake. I have no idea how to cross-compile this.

Same issue I had

[psychocoder]

Bas news!!!

With K20 we can only get theoreticly 372 MHash/s.

We can run 120 bitshifts and 160 xor,and,add,rotate per clockcycle and multiprocessor. The asm code inside of the loop has 3725 and,or,.. and 162 bitshifts. K20 has 705 MHz and 13 multiprocessors. 705*13/(3725/160+162/120)=372

With GTX Titen we can get 475 MHash/s (theoreticly) because clock rate is 837 MHz and we have 14 multiprocessors.

All this calculations are without the caculation overhead before the loop and I am not really shure if 160 or 120 rotates can caculated per clock. At the moment I only get out real 330 MHash/s :-(
Keep in mind that this optimization not get a factor of two with old gpus, only with sm_35 (new Kepler GPUs)

[Edvin512]

Damn exciting, i have a 460 that needs a workout!

[cbuchner1]

Finally CUDA is getting a bit more attention from developers.

I am currently doing similar optimization work for the scrypt hashing used in Litecoin. About doubled the performance I am getting from most of my cards compared to OpenCL miners. This still sucks big time when compared to ATI cards, but it sucks a bit less than before.

With the scrypt hashing it appears much more difficult to lower the kernel's register count, as the required Salsa20/8 rounds are fairly complex beasts, also the memory-hard part of the algorithm really bangs on the memory controller.

Watch out for potential Windows binary releases in the next days. I will post into the alt cryptocurrency forum.

[Evan]

Finally CUDA is getting a bit more attention from developers.

I am currently doing similar optimization work for the scrypt hashing used in Litecoin. About doubled the performance I am getting from most of my cards compared to OpenCL miners. This still sucks big time when compared to ATI cards, but it sucks a bit less than before.

With the scrypt hashing it appears much more difficult to lower the kernel's register count, as the required Salsa20/8 rounds are fairly complex beasts, also the memory-hard part of the algorithm really bangs on the memory controller.

Watch out for potential Windows binary releases in the next days. I will post into the alt cryptocurrency forum.

for ltc or btc?

[camaro69327]

Finally CUDA is getting a bit more attention from developers.

I am currently doing similar optimization work for the scrypt hashing used in Litecoin. About doubled the performance I am getting from most of my cards compared to OpenCL miners. This still sucks big time when compared to ATI cards, but it sucks a bit less than before.

With the scrypt hashing it appears much more difficult to lower the kernel's register count, as the required Salsa20/8 rounds are fairly complex beasts, also the memory-hard part of the algorithm really bangs on the memory controller.

Watch out for potential Windows binary releases in the next days. I will post into the alt cryptocurrency forum.

for ltc or btc?

Looking forward to this.....

[Evan]

 If someone needs a testing I currently have:

GTX690
GTX680 x2
Quadro K2000 x32
Quadro K2000M x2

 (I think all of these are Keplers)

[Skami]

I will give  .25BTC for a Windows version to be created and maintained.... I have 37 nvidia cards that are BEGGING TO BE WORKED

I'll add another 0.1 BTC

[Evan]

I will give  .25BTC for a Windows version to be created and maintained.... I have 37 nvidia cards that are BEGGING TO BE WORKED

I'll add another 0.1 BTC

Added to list 

[RainmanCC]

i have compiled a windows version of the miner everyone who wants it send 0.5 btc to my adress and pm me



1ChFy7a3Lsyt3JkgG2NVWXBP4Yebs1YcVV

[Evan]

i have compiled a windows version of the miner everyone who wants it send 0.5 btc to my adress and pm me



1ChFy7a3Lsyt3JkgG2NVWXBP4Yebs1YcVV

Willing to Escrow? Screen shots? Support for future updates?

[RainmanCC]

i have compiled a windows version of the miner everyone who wants it send 0.5 btc to my adress and pm me



1ChFy7a3Lsyt3JkgG2NVWXBP4Yebs1YcVV

Willing to Escrow? Screen shots? Support for future updates?

i just compiled it its not difficult to compile it. sinsce i dont have any nvidia card i coult not test hashing.
just offering the binaries.

[Skami]

i have compiled a windows version of the miner everyone who wants it send 0.5 btc to my adress and pm me



1ChFy7a3Lsyt3JkgG2NVWXBP4Yebs1YcVV

Willing to Escrow? Screen shots? Support for future updates?

i just compiled it its not difficult to compile it. sinsce i dont have any nvidia card i coult not test hashing.
just offering the binaries.

0.5 BTC for untested bins, uhu...

[psychocoder]

Please wait and save your BTC, if I have time I add this code in a windows miner which supports CUDA and is still in maintenance. Keep in mind that the source code is open source and you must give out the source for free.
Knows everyone a Windows CUDA Miner? I am out of bitcoin mining since 2 years.

@Evan GTX690 has only sm_30 and not support rotate function :-(

[jeezy]

Knows everyone a Windows CUDA Miner?

This one? https://bitcointalk.org/index.php?topic=3486.0

[wndrbr3d]

CUDA Litecoin Miner + Source released here: https://bitcointalk.org/index.php?topic=167229.0

[GimpyPrime]

Any status updates on a compiled version for Windows?

[charliemaggot]

I created a build solution for VS2010. Pre-built binary in bin.

https://github.com/cdmackie/rpcminer-mod

Included both OpenCL and CUDA, but I can't check CUDA.

Appreciate if someone could test it out and see if it works the same.

[Evan]

Any status updates on a compiled version for Windows?

MSVCP100d.dll is missing from your computer please reinstall

[DastanX]

Any status updates on a compiled version for Windows?

MSVCP100d.dll is missing from your computer please reinstall

http://www.microsoft.com/de-de/download/details.aspx?id=14632

[GimpyPrime]

Any status updates on a compiled version for Windows?

MSVCP100d.dll is missing from your computer please reinstall

http://www.microsoft.com/de-de/download/details.aspx?id=14632

Won't let me install it since I have a newer version. I am running Windows 8 Pro / Visual Studio 2012 Ultimate.

So that probably isn't the issue.

[charliemaggot]

That's the Microsoft runtime, but it was linked to the debug version so I've changed it to a release version.

You can download again and I've added the missing file in case you don't have the runtime installed.

edit: CUDA module isn't compiled...working on it.

edit2: I've added the CUDA ptx file, so you can download the latest binaries.

For for expediency, I've thrown in a "buildcuda.bat" in the root that will compile the ptx and put it in bin.

I'll tidy it all up tomorrow (or later today as they say).

[charliemaggot]

Windows binaries: I've added a "kepler" branch and rebuilt it. I don't have any suitable h/w, so if anyone could try it, that'd be grand.

https://github.com/cdmackie/rpcminer-mod/tree/kepler

[gateway]

I have a GTX 680.. just tried to run it but it spit this out..

Client will start 1 miner threads
Work will be refreshed every 4000 ms
1 CUDA GPU devices found
Setting CUDA device to first device found
Loading module bitcoinminercuda.ptx
Unable to load CUDA module: 209

then it exits..

[charliemaggot]

I have a GTX 680.. just tried to run it but it spit this out..

Client will start 1 miner threads
Work will be refreshed every 4000 ms
1 CUDA GPU devices found
Setting CUDA device to first device found
Loading module bitcoinminercuda.ptx
Unable to load CUDA module: 209

then it exits..

Did you use the master or kepler branch?
Does the file bitcoinminercuda.ptx exist in the same directory as the exe?
Can you try compiling the ptx yourself (run buildcuda)?

[psychocoder]

For GTX690 you must compile with sm_20. I work on a version which shuld be run better on Fermi GPUs and I have get the register count down from 63 to 34 but without any speedup :-(.

@charliemaggot: Thanks for building Win version.

[charliemaggot]

@charliemaggot: Thanks for building Win version.

Anytime. I just compiled it. Kudos for your coding it.

So for 209 errors, change buildcuda.bat

  -gencode=arch=compute_35,code=\"sm_35,compute_35\"

to

  -gencode=arch=compute_20,code=\"sm_20,compute_20\"

and run it. If you don't have VS2010, I can build it and throw it up.

[Barrel]

I'd like a compiled binary for the 209 error, I tried doing it on VS2012 and got a bunch of errors.

[charliemaggot]

I'd like a compiled binary for the 209 error, I tried doing it on VS2012 and got a bunch of errors.

Grab https://github.com/cdmackie/rpcminer-mod/blob/kepler/bin/bitcoinminercuda.20.ptx and rename it removing the ".20", replacing the other ptx file. Let me know how you get on.

[Barrel]

About the same hashrate on aggression=10 as guiminer on a GTX 650 Ti, 50-ish MH/s.

I'm not too familiar with the other settings (gpugrid and gputhreads) so I'm not sure if those would raise the hash rate a significant amount,

[charliemaggot]

About the same hashrate on aggression=10 as guiminer on a GTX 650 Ti, 50-ish MH/s.

I'm not too familiar with the other settings (gpugrid and gputhreads) so I'm not sure if those would raise the hash rate a significant amount,

I can't say, but psychocoder may well know better settings for you. Try info from his first post in this thread.

[gateway]

Ok got this working, any recommended settings ?

default settings:

Done allocating CUDA resources for (32,128)
Target = 00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffff
68767 khash/s
73804 khash/s
74725 khash/s
74484 khash/s
73926 khash/s
73477 khash/s
73711 khash/s

cgminer does about 118-120~

some settings I found just testing but no idea if they are right for the 680 card
Client will start 1 miner threads
Work will be refreshed every 4000 ms
1 CUDA GPU devices found
Setting CUDA device to first device found
Loading module bitcoinminercuda.ptx
CUDA initialized
Done allocating CUDA resources for (256,512)
Finding best configuration step end (256,512) 1ms  prev best=9223372036854775807ms
Done allocating CUDA resources for (256,512)
Target = 00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffff
113145 khash/s
119789 khash/s
126394 khash/s
119730 khash/s
120627 khash/s
122473 khash/s
122970 khash/s

-aggression=8 -gpugrid=256 -gputhreads=512

[psychocoder]

I think I update the code tomorrow (german time) and add multi sm support to the make system (linux) and code.

@Barrel: Please test with parameters -aggression=8 -gpugrid=64 -gputhreads=384

[Evan]

I think I update the code tomorrow (german time) and add multi sm support to the make system (linux) and code.

@Barrel: Please test with parameters -aggression=8 -gpugrid=64 -gputhreads=384

Hey so I am still having issues

Create Kernel rval=-46
error creating kernel

[charliemaggot]

I think I update the code tomorrow (german time) and add multi sm support to the make system (linux) and code.

@Barrel: Please test with parameters -aggression=8 -gpugrid=64 -gputhreads=384

Hey so I am still having issues

Create Kernel rval=-46
error creating kernel

That's OpenCl, not cuda, in case you are running the wrong one. Otherwise can you check you have copied the bitcoinmineropencl.cl from the src\opencl directory into where you are trying to run the exe.

[Barrel]

68 MH/s with those settings. A bit better, but not as drastic as I had hoped.

[Evan]

I think I update the code tomorrow (german time) and add multi sm support to the make system (linux) and code.

@Barrel: Please test with parameters -aggression=8 -gpugrid=64 -gputhreads=384

Hey so I am still having issues

Create Kernel rval=-46
error creating kernel

That's OpenCl, not cuda, in case you are running the wrong one. Otherwise can you check you have copied the bitcoinmineropencl.cl from the src\opencl directory into where you are trying to run the exe.

C:\Users\Glutony>C:\Users\Glutony\Desktop\rpcminer-mod-master\bin\rpcminer-mod-c
uda.exe -u Master-Galaxy7 -p *****-o http://localhost:8332
Client will start 1 miner threads
Work will be refreshed every 4000 ms
Could not retrieve work from RPC server.
CURL return value = 22
4 CUDA GPU devices found
Setting CUDA device to first device found
Loading module bitcoinminercuda.ptx
Unable to load CUDA module: 301


For BuildCuda.bat
With Cuda 5.0.5 installed:



C:\Users\Lab>"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v5.0\bin\nvcc.exe" -ptx        --use-local-env --cl-version 2010       -gencode=arch=compute_35
code=\"sm_35,compute_35\" -Xptxas=-v -Xopencc=-LIST:source=on  -m32    -D_BITCOIN_MINER_CUDA_  -DNVCC  -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v5.0\include"     -I"src\cuda"    -o "bin\bitcoinminercuda.ptx"   "bin\bitcoinminercuda.cu"
Nvcc : fatal error : Cannot find compiler 'cl.exe' in PATH

[InqBit]

I am getting a 200 error. I didn't see it covered above. I downloaded all the files in the bin folder into the same folder, is that correct?

Windows 7 x64


C:\miners\rpcminer nvopt>rpcminer-mod-cuda.exe -url=http://stratum.bitcoin.cz:3333 -user=user -password=pass
Client will start 1 miner threads
Work will be refreshed every 4000 ms
2 CUDA GPU devices found
Setting CUDA device to first device found
Loading module bitcoinminercuda.ptx
Unable to load CUDA module: 200

[charliemaggot]

Nvcc : fatal error : Cannot find compiler 'cl.exe' in PATH

Means that it can't find the C compiler. You need to have the Microsoft C compiler installed (e.g. Visual Studio 10 or Visual Studio 10 Express) to be able to build the cuda files. If you do have it already, you just need to run "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\vcvars32.bat" first in the command window to set up the paths.

If you don't have it, either download and install the Express version or just copy down the the prebuilt .ptx files from the bin directory in https://github.com/cdmackie/rpcminer-mod/tree/kepler/bin. There are now different ones, so try the bitcoinminercuda.ptx first. If that works, rename bitcoinminercuda.20.ptx to bitcoinminercuda.ptx and try again. Likewise with bitcoinminercuda.30.ptx. USe the last one that worked.

[charliemaggot]

I am getting a 200 error. I didn't see it covered above. I downloaded all the files in the bin folder into the same folder, is that correct?

@InqBit What cards do you have?

Save your bitcoinminercuda.ptx and rename bitcoinminercuda.30.ptx to bitcoinminercuda.ptx and try again. Also, try bitcoinminercuda.20.ptx.

[InqBit]

I am getting a 200 error. I didn't see it covered above. I downloaded all the files in the bin folder into the same folder, is that correct?

@InqBit What cards do you have?

I have a GTX480 and GTS450

edit: Fermi cards, but figured it would run. Maybe not?

[charliemaggot]

I am getting a 200 error. I didn't see it covered above. I downloaded all the files in the bin folder into the same folder, is that correct?

@InqBit What cards do you have?

I have a GTX480 and GTS450

edit: Fermi cards, but figured it would run. Maybe not?

I edited my last post, try the 20 ptx file. I think psychocoder is working on more optimisations.

[InqBit]

Heading out the door now, but will make the changes when I get back. Thanks!

[InqBit]

Nice work. the 20 file got it going and look at the results, 19Ghash from Nvidia cards! (30 file returned 209 error)

https://i.imgur.com/ag4W2YR.png

It's working but BTC is showing work as dupes. Not surprisingly...

GUIMiner ends up reporting as having connection issues fwiw.

[GimpyPrime]

I've got it working now, with CUDA I get 100-110mhash/s on a 670GTX FTW(Overclocked), with an i7 CPU

Using OpenCL I get approximately the same range, but even as high as 120-130mhash/s sometimes.

Not expecting to become a bitcoin millionaire with a 670GTX lol, just doing this for fun. However whatever improvements got added do not appear to be assisting with my machine.

Curious though what is the difference between the bitcoinminercuda.20/30 files? I am wondering if there is something I need to compile myself here.

[dentldir]

No luck with a 660ti on Windows with any of the .ptx files.  20 and 30 load but the binary crashes after the Target and Done allocating CUDA resource messages.  (rpcminer-mod-cuda.exe has stopped working).

Tried with 314.22 and the CUDA 5.0 dev driver default (306.xx I think?).

Can provide more info if needed.

Thanks.

[DastanX]

this is still very exprimental. at linux os i get 350-370 MH/s while in windows only max 120MH/s.

i will try to make an workaround to it

[camaro69327]

Might as well jump in ....First..no linuix ...just a point click, old guy in Win 7.

I have 2 - 580 GTX. Using CGminer I get 160-200 Mhash PER card . (depends on overclock and using Comp or not)

Trying this..@ first i had the "Unable to load CUDA module: 209" error. I grabbed the other .plx file bitcoinminercuda.20.ptx. Renamed it and...

Now i am getting "curl return Value = 7"

Kinda getting lost here...lol These are some of the Command lines tried....

rpcminer-mod-cuda.exe -aggression=8 -gpugrid=64 -gputhreads=384 -o - url=http://stratum.bitcoin.cz:3333 -user=####### -password=#####
rpcminer-mod-cuda.exe -aggression=8 -gpugrid=256 -gputhreads=512 - url=http://stratum.bitcoin.cz:3333 -user=###### -password=#####
rpcminer-mod-cuda.exe -url=http://stratum.bitcoin.cz:3333 -user=##### -password=####
rpcminer-mod-cuda.exe -url=http://localhost:8332 -user=##### -password=#### <<(set according to Bitcoin.conf)

"curl return Value = 7"

Thanks for all the hard work you guys do, would really like to get these cards working better (they are embarrassed to announce their terrible Hash rates to all the other cards on my network. Especially the 7970 getting 720 Mhash...lol).

[gateway]

this is still very exprimental. at linux os i get 350-370 MH/s while in windows only max 120MH/s.

i will try to make an workaround to it

wow thats a huge jump on linux.. be great to see that for us windows users!

What card are you using?

[gateway]

Might as well jump in ....First..no linuix ...just a point click, old guy in Win 7.

I have 2 - 580 GTX. Using CGminer I get 160-200 Mhash PER card . (depends on overclock and using Comp or not)

Trying this..@ first i had the "Unable to load CUDA module: 209" error. I grabbed the other .plx file bitcoinminercuda.20.ptx. Renamed it and...

Now i am getting "curl return Value = 7"

Kinda getting lost here...lol These are some of the Command lines tried....

rpcminer-mod-cuda.exe -aggression=8 -gpugrid=64 -gputhreads=384 -o - url=http://stratum.bitcoin.cz:3333 -user=####### -password=#####
rpcminer-mod-cuda.exe -aggression=8 -gpugrid=256 -gputhreads=512 - url=http://stratum.bitcoin.cz:3333 -user=###### -password=#####
rpcminer-mod-cuda.exe -url=http://stratum.bitcoin.cz:3333 -user=##### -password=####
rpcminer-mod-cuda.exe -url=http://localhost:8332 -user=##### -password=#### <<(set according to Bitcoin.conf)

"curl return Value = 7"

Thanks for all the hard work you guys do, would really like to get these cards working better (they are embarrassed to announce their terrible Hash rates to all the other cards on my network. Especially the 7970 getting 720 Mhash...lol).

dont use the stratum url us this instead.. btcguild.com:8332

[peacefulmind]

I have 2x TITAN but they are on win7 for DirectX.

[psychocoder]

Please use a pool with getwork support, there is no real strtum support inside the miner.

Today night (german time) I post a new reposetory with my new code. I hope charliemaggot create a windows version.
The new code supports all old GPU (I think till GTX9800). The is no ptx needed.

I think on old GPU we can't get a good speedup because the GPUs has very slow bit operations.

GPU Overview:

C1070 - old GPU - 30 Streaming Multiprocessors (SM) - ~53MHash/s
C2050 - old Fermi - 14 SM - ~ 90MHash/s
K20c - new Kepler - 13 SM - ~ 325MHash/s

[charliemaggot]

@GimpyPrime The default bitcoinminercuda.ptx file was built to "compute 3.5", which was just from the patch in psychocoder's first post in this thread. It is the latest optimised level for NVIDIA Telsa K20 cards. You need to know the compute level for your card (https://developer.nvidia.com/cuda-gpus) and use the appropriate file. Your GTX 670 should be compute level 3.0, so you would need the .30 file.

You can obviously build them yourself, I was just trying to include as much as possible so it could just be downloaded and run, however I didn't include a note about which file was needed. If you have VS 2010 you can edit the buildcuda.bat file and change the compute number to be appropriate for your card - and change the compiler value if you are using VS2012.

@dentldir Should work with the 30 file on your 660. Latest stable driver? Maybe try again after I rebuild it from psychocoder's latest changes.

@camaro69327 Your card is a 2.0 Fermi device, so not sure you would see much benefit from the Kepler (3.0) optimisation in this thread. Wait and see if psychocoder can create some better optimisations. The app is still using the getwork api, so you need to use http://api.bitcoin.cz:8332 or download their stratum proxy.

@psychocoder I'll start building it for Windows once you get changes done, if you could let me know where they are. Thanks.

[camaro69327]

Thanks for the responses guys. I did get this working as i had the wrong port for localhost. 9332 Worked. Only could get one card hashing. Could get 160 easy. 214 was another common Mhash.

300 + Mh but only for 3 or 4 shares then 0.

Back to Cgminer and a steady 170 - 200 for now. I thought this was the Gen i had. Fermi not Kelper Duh.

[psychocoder]

I have checked in my code to https://github.com/psychocoder-germany/rpcminer-mod. The code is a little bit slower than my first patch. I have put same calculations to cpu to save registers.
Now I only need 32 Register for Fermi and have 100% occupancy. There is no need to create ptx because all versions are inside the binary after compiling.

Sry that I create a new repo but it was my first git commit. I am oldschool and normaly use svn^^

@charliemaggot: Please add windows compile support.

[psychocoder]

OK, switched back to faster kernel.

GPU Overview update:

C1070 - old GPU - 30 Streaming Multiprocessors (SM) - ~46MHash/s (slows down with the last patched kernel)
C2050 - old Fermi - 14 SM - ~ 107MHash/s
K20c - new Kepler - 13 SM - ~ 325M - 350 Hash/s   (options: -aggression=11)

Note: the option -gputhreads change nothing, all kernel are build to run 256 threads.

[Limie]

watching with anticpation both threads

[gateway]

OK, switched back to faster kernel.

GPU Overview update:

C1070 - old GPU - 30 Streaming Multiprocessors (SM) - ~46MHash/s (slows down with the last patched kernel)
C2050 - old Fermi - 14 SM - ~ 107MHash/s
K20c - new Kepler - 13 SM - ~ 325M - 350 Hash/s

what exactly is K20c ? just so we know here.. and what gpu are you using right now, I cant wait to see 300+ on my 680 ...

[psychocoder]

K20c is http://www.techpowerup.com/gpudb/564/NVIDIA_Tesla_K20c.html a high performance GPU card. This cards are created to run math calculations with floating point operations. It is nothing for a home pc. The version for the home pc with the same architecture is GTX Titan http://www.techpowerup.com/gpudb/1996/.html

GTX680 has not the new bit rotate (funnel) operator I think 300+ is not possible.
Theorethic calculation: 1006*8/(3733/160+1194/32)=132 MHash/s   (magic numbers are the count of operations from the binary for this implementation)

IMO the GTX680 GPU is limited to max 132 MHash/s

[wzl]

just compiled it and i'm running it on gtx680, CUDA still new to me, playing with parameters.
Unfortunately I don't have several thousand $ for a K20 

[charliemaggot]

I have updated the Windows build with psychocoder's changes:

https://github.com/cdmackie/rpcminer-mod (use the master branch)

We'll merge them together shortly.

To just run, you only need the bin folder, and run the rpcminer-mod-cuda.exe. There is no need for the ptx files anymore.

To build yourself, you need MSVC 2010 and the CUDA SDK 5.x.

Please post any errors or successes.

[InqBit]

I have updated the Windows build with psychocoder's changes:

https://github.com/cdmackie/rpcminer-mod (use the master branch)

We'll merge them together shortly.

To just run, you only need the bin folder, and run the rpcminer-mod-cuda.exe. There is no need for the ptx files anymore.

To build yourself, you need MSVC 2010 and the CUDA SDK 5.x.

Please post any errors or successes.

This version of C:\miners\rpcminer nvopt\rpcminer-mod-cuda.exe is not compatible with the version of Windows you're running. Ch
eck your computer's system information to see whether you need a x86 (32-bit) or
 x64 (64-bit) version of the program, and then contact the software publisher.

Error message when starting from command line. Win 7 x64

[charliemaggot]

This version of C:\miners\rpcminer nvopt\rpcminer-mod-cuda.exe is not compatible with the version of Windows you're running.

Er..odd. Nothing changed since last version working from yesterday?

Can you download Dependency Walker from http://www.dependencywalker.com/ (the x86 version) and run it and open the rpcminer-mod-cuda.exe file and see if you get any errors. An error is typically a file shown in red in the top left tree.

[InqBit]

This version of C:\miners\rpcminer nvopt\rpcminer-mod-cuda.exe is not compatible with the version of Windows you're running.

Er..odd. Nothing changed since last version working from yesterday?

Can you download Dependency Walker from http://www.dependencywalker.com/ (the x86 version) and run it and open the rpcminer-mod-cuda.exe file and see if you get any errors. An error is typically a file shown in red in the top left tree.

I downloaded the x64 version since that is the OS I have. Output below:

https://i.imgur.com/TBOh3eV.png

[psychocoder]

HI,

I have testet the windows version on Windows7 64.

I start the program and the cudart32_50.dll or cudart64_50.dll was mist. I install cuda for windows https://developer.nvidia.com/cuda-downloads and than all run.
It can be that this is a sideeffect from switching to runtime library of cuda.

If an error shows that bitconminer.cpp:174 crash that the parameter -gpugrid to 256 or 512, it came from windows intern limit that no calculation on gpu can run longer than 4 sec.

With GT555M I get:

22.3 - 22.6 MHash/s with OpenCL
22.3 - 22.9 MHash/s with CUDA

I put allw links to reposetories and Errors to the top post.

[charliemaggot]

@InqBit Just seems like the file is corrupted. Does it match the one on gibhub? Can you try downloading it again? You will need to 32bit CUDA SDK, or at least cudart32_50.dll if that isn't included in the 64bit version. I hadn't built 64bit, as there were 3rd party dependencies, but I might try and them them later.

@psychocoder Seems there are some other ways around the time-out issue:

1) As you say, change grid values
2) Unplug the monitor from the card... assuming you aren't using it
3) Change registry settings to increase the time-out. See http://msdn.microsoft.com/en-us/library/windows/hardware/ff569918(v=vs.85).aspx. Perhaps only for the hardcore and if it's going to make a significant difference.

Were the 22.3-22.9 values you got on your GT555M in Windows what you expected? Is it the same as Unix?

[psychocoder]

Were the 22.3-22.9 values you got on your GT555M in Windows what you expected? Is it the same as Unix?

Can't test it under linux. Thats a Laptop with 2 GPUs it was not possible to run the miner under linux :-(

I hope we get some results from a user with a GTX Titan.

[InqBit]

@InqBit Just seems like the file is corrupted. Does it match the one on gibhub? Can you try downloading it again? You will need to 32bit CUDA SDK, or at least cudart32_50.dll if that isn't included in the 64bit version. I hadn't built 64bit, as there were 3rd party dependencies, but I might try and them them later.

Downloaded & installed the x64 CUDA dev software & the .exe is just crashing now. I re-downloaded all the files this morning & was getting an error about the cudart32 file, & that's when I downloaded the CUDA package.

It begins to start, then crashes after outputting:

Client will start 1 miner threads
Work will be refreshed every 4000 ms
2 GPU GUDA device(s) found
<src\cuda\bitcoinminercuda.cpp>:54

Event log below:

Faulting application name: rpcminer-mod-cuda.exe, version: 0.0.0.0, time stamp: 0x5161065f
Faulting module name: rpcminer-mod-cuda.exe, version: 0.0.0.0, time stamp: 0x5161065f
Exception code: 0x40000015
Fault offset: 0x0002eadc
Faulting process id: 0x19ac
Faulting application start time: 0x01ce33c69eee3f83
Faulting application path: C:\miners\rpcminer nvopt\rpcminer-mod-cuda.exe
Faulting module path: C:\miners\rpcminer nvopt\rpcminer-mod-cuda.exe
Report Id: dd0fe4b3-9fb9-11e2-94d6-001fbc083cc7

[gateway]

I can confirm im getting the same thing..

when running rpc a window pops up and says

the program cant start because cuda32_50_35.dll is missing from your computer..

seems something went whacko

[charliemaggot]

Downloaded & installed the x64 CUDA dev software & the .exe is just crashing now. I re-downloaded all the files this morning & was getting an error about the cudart32 file, & that's when I downloaded the CUDA package.

Ok, whilst building a debug version to try and track your issue down, I found out that there is an error in the error handler. So based on the line you had the error, it's that the CUDA device driver didn't initialise properly. Do you have the right and latest drivers?

I've fixed the error handler and uploaded a new binary so you should see a more meaningful message.

[charliemaggot]

I can confirm im getting the same thing..

when running rpc a window pops up and says

the program cant start because cuda32_50_35.dll is missing from your computer..

seems something went whacko

Do you have 32-bit CUDA SDK 5.0 installed?

[gateway]

Do you have 32-bit CUDA SDK 5.0 installed?

I get the same error, no I never installed cuda since I wasnt compiling this, I have the latest nvidia drivers tho since this is my uber gaming rig..

any chance to include the dll?

EDIT: .. installed 32bit version of cuda 5 from nvidias site.. now when I run the miner I the program crashs.. its not missing the dll .. but

Client will start 1 miner threads
Work will be refreshed every 4000 ms
1 GPU GUDA device(s) found
<src\cuda\bitcoinminercuda.cpp>:54[CUDA] Error: invalid device ordinal

[InqBit]

Downloaded & installed the x64 CUDA dev software & the .exe is just crashing now. I re-downloaded all the files this morning & was getting an error about the cudart32 file, & that's when I downloaded the CUDA package.

Ok, whilst building a debug version to try and track your issue down, I found out that there is an error in the error handler. So based on the line you had the error, it's that the CUDA device driver didn't initialise properly. Do you have the right and latest drivers?

I've fixed the error handler and uploaded a new binary so you should see a more meaningful message.

I am 1 version behind on drivers, will download the latest ones.

Latest error with newest rpcminer-mod-cuda (1 version behind on drivers fyi)

Client will start 1 miner threads
Work will be refreshed every 4000 ms
2 GPU GUDA device(s) found
<src\cuda\bitcoinminercuda.cpp>:54[CUDA] Error: invalid device ordinal
Could not retrieve work from RPC server.
CURL return value = 7

edit: Latest drivers, 314.22, same error as above.

[coastermonger]

I'm trying out the windows version with a GTX 670 and it doesn't seem to be working

I can confirm that I've installed CUDA dev software 5.0
I also have updated drivers including cudart32_50_35.dll

When clicking on the rpcminer-mod-cuda.exe file the black cmd screen comes up and an error window immediately says "rpcminer-mod-cuda.exe has stopped working"

On the cmd window in the background it says

Client will start 1 miner threads
Work will be refreshed every 4000 ms
1 GPU CUDA device(s) found
<srcudbitcoinmindercuda.cpp>:54[CUDA] Error: invalid device ordinal
Error:invalid device ordinal

When I run the debugger it tells me there is a Run-Time Check Failure #0 - The value of ESP was not properly saved across a function call.  This is usually the result of calling a function declared with one calling convention with a function pointer declared with a different calling convention

To be honest I wasn't sure where exactly to extract the zip files, or how to make a file that alters how the executable runs...  Any help will be greatly appreciated.  Post your address and I'll tip you my first bitcent or so

[charliemaggot]

I've added the cudart32_50_35.dll to the binaries so it can be downloaded, although you've probably got it by now.

I think there is a bug if you don't specify the gpu flag, e.g. using "-gpu" and not something like "-gpu=0". So can you try explicitly setting it 0, 1 or whatever.

If you still get an error, there should be a rpcminer.dmp file created in the same folder. Can you send it to me, charlie (at) legmail.com

[InqBit]

I sent you my rpcminer.dmp file from most recent attempt.

Trying to set the -gpu flag made no difference. The video driver stops responding if that helps.

[psychocoder]

Client will start 1 miner threads
Work will be refreshed every 4000 ms
1 GPU CUDA device(s) found
<srcudbitcoinmindercuda.cpp>:54[CUDA] Error: invalid device ordinal
Error:invalid device ordinal

Mh, the selection of your device crash. I add later some more output which device is selected. In most cases there is a problem with the driver.

[gateway]

Client will start 1 miner threads
Work will be refreshed every 4000 ms
1 GPU CUDA device(s) found
<srcudbitcoinmindercuda.cpp>:54[CUDA] Error: invalid device ordinal
Error:invalid device ordinal

Mh, the selection of your device crash. I add later some more output which device is selected. In most cases there is a problem with the driver.

I'm seeing the same results, yesterdays build I was able to run, today with the changes.. aka required cudart and then when having it provides the same output..

GTX 680

[charliemaggot]

Did you try the latest?...from about 3hrs ago, as there was a bug fix if no gpu parameter was specified.

[psychocoder]

I have deinstalled my cuda and run it under windows withe the dll from the repo. All worked fine.

Can you please post the commandline which you use to start the miner and all output from the miner.

[psychocoder]

@charliemaggot

I have updated bitcoinminer.cpp in my repo. I disable the hard crash if a error came out of the device selection. Normaly if no cudaSetDevice is called the driver select the first device. I have not tested the code because I do the changes in my webbrowser, but I think it compile^^

[InqBit]

I did a full repull of the files from charlie's github and it is working now, using only 1 of my 2 gpu's. I did uninstall the CUDA dev prog as well after seeing you did, and pulled the correct file it needed from github.

As of now, not seeing any difference in hash rate on a Fermi card, but I assume that's what was expected.

[InqBit]

Here was my output fwiw. GTX 480

C:\miners\rpcminer nvopt>rpcminer-mod-cuda.exe -url=api.bitcoin.cz:8332 -user=user -password=password -gpugrid=512 -gputhreads=480 -gpu=0
Client will start 1 miner threads
Work will be refreshed every 4000 ms
2 GPU GUDA device(s) found
CUDA initialized
Search Configuration for gpu named: GeForce GTX 480
Your device:
   - 15 streaming multiprocessors (SM)
   - can run sm version 200
   - bitcoin miner is optimized for 3 gpugrids per SM
   - max value for gpugrid parameter is 65535
max nonce 3FFFFFFF
Done allocating CUDA resources for (512,256)
iterations on gpu=32 blocks=512 threads=256
Iterations: 255,hashs per iteration 15994212185991544832
Target = 00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffff
Found nonce 364CFF6C
2013-04-08 07:11:01 Found Hash!
Hashs found: 1
Sending to server: {"method":"getwork","params":["000000029bddf49cc3f72f75bf4552
d589df0fb9ec95184c247082e00000009200000000ffb19deae961efc905812ff5b1fcf69ec34f2 7
c9d0ba4194749c538e3ceb2ca751626d7e1a022fbe6cff4c3600000080000000000000000000000 0
000000000000000000000000000000000000000000000000000000000080020000"],"id":1}
Server sent: {"result": true, "id": "1", "error": null}
Found nonce AE9CEA4
2013-04-08 07:11:03 Found Hash!
Hashs found: 2
Sending to server: {"method":"getwork","params":["000000029bddf49cc3f72f75bf4552
d589df0fb9ec95184c247082e000000092000000000c048fe68ab3317714aaee783c242a630feb0 1
86961ef159df4949318f8688e051626d851a022fbea4cee90a00000080000000000000000000000 0
000000000000000000000000000000000000000000000000000000000080020000"],"id":1}
Server sent: {"result": true, "id": "1", "error": null}
137694 khash/s

[charliemaggot]

I've just added the 64-bit build, in a separate branch https://github.com/cdmackie/rpcminer-mod/tree/x64.

Grab the whole repo (or just bin) and run it from within bin as before.

I don't imagine you'll see much difference, but if anyone could try it out so I can make it the default.

Now must sleep...

[psychocoder]

@InqBit: is 137694 khash/s the first shown hash rate? Please run the miner 5 min and than look to the hash rate. The first hash rate is always lower because the first kernel call takes very long.
I see you run the code with without -aggression, please add -aggression=8  or 7 to you parameter to get more performance. -gputhreads is not needed because it is ignored and hard set to 256.

theoretic calculation rate for GTX480: 1401*15/(3733/32+1194/16)=109 MHash/s   (magic numbers are the count of operations from the binary for this implementation)

Mhh in my theoretic calculation  I assumed 109 MHash/s for a GTX480. I think I must check if my operation count for fermi is right.
Can someone with a GTX480 run the code under linux without -gpugrid.

[InqBit]

@InqBit: is 137694 khash/s the first shown hash rate? Please run the miner 5 min and than look to the hash rate. The first hash rate is always lower because the first kernel call takes very long.
I see you run the code with without -aggression, please add -aggression=8  or 7 to you parameter to get more performance. -gputhreads is not needed because it is ignored and hard set to 256.

theoretic calculation rate for GTX480: 1401*15/(3733/32+1194/16)=109 MHash/s   (magic numbers are the count of operations from the binary for this implementation)

Mhh in my theoretic calculation  I assumed 109 MHash/s for a GTX480. I think I must check if my operation count for fermi is right.
Can someone with a GTX480 run the code under linux without -gpugrid.

I just made the appropriate changes and started a new run. Will let you know in a few how it works out.

FWIW, I've been running ~140-145'ish on cgminer, overclocked to 800 core (700 stock). This is my general use machine, so I didn't have aggression set to keep desktop usable, but will run at 7 for testing for you. I just checked my average hashrate on cgwatcher, and it is 140.1.

edit: 10 minutes later

C:\miners\rpcminer nvopt>rpcminer-mod-cuda.exe -url=api.bitcoin.cz:8332 -user=user -password=pass -gpugrid=512 -gpu=0 -aggression=7


last 5 hashrates
140345 khash/s
140360 khash/s
140052 khash/s
139525 khash/s
140080 khash/s

[InqBit]

I've just added the 64-bit build, in a separate branch https://github.com/cdmackie/rpcminer-mod/tree/x64.

Grab the whole repo (or just bin) and run it from within bin as before.

I don't imagine you'll see much difference, but if anyone could try it out so I can make it the default.

Now must sleep...

I'm running it now, works as is.

[Skami]

@InqBit: is 137694 khash/s the first shown hash rate? Please run the miner 5 min and than look to the hash rate. The first hash rate is always lower because the first kernel call takes very long.
I see you run the code with without -aggression, please add -aggression=8  or 7 to you parameter to get more performance. -gputhreads is not needed because it is ignored and hard set to 256.

theoretic calculation rate for GTX480: 1401*15/(3733/32+1194/16)=109 MHash/s   (magic numbers are the count of operations from the binary for this implementation)

Mhh in my theoretic calculation  I assumed 109 MHash/s for a GTX480. I think I must check if my operation count for fermi is right.
Can someone with a GTX480 run the code under linux without -gpugrid.

I just made the appropriate changes and started a new run. Will let you know in a few how it works out.

FWIW, I've been running ~140-145'ish on cgminer, overclocked to 800 core (700 stock). This is my general use machine, so I didn't have aggression set to keep desktop usable, but will run at 7 for testing for you. I just checked my average hashrate on cgwatcher, and it is 140.1.

edit: 10 minutes later

C:\miners\rpcminer nvopt>rpcminer-mod-cuda.exe -url=api.bitcoin.cz:8332 -user=user -password=pass -gpugrid=512 -gpu=0 -aggression=7


last 5 hashrates
140345 khash/s
140360 khash/s
140052 khash/s
139525 khash/s
140080 khash/s

What hashrate where you getting without cuda?

[gateway]

64 bit version tests:

my results.. for 680


C:\Users\gateway\Desktop\rpcminer-mod-x64\bin>rpcminer-mod-cuda.exe -url=btcguild.com:8332 -user=xxx -password=xxx -gpugrid=2048 -gputhreads=256 -gpu=0
Client will start 1 miner threads
Work will be refreshed every 4000 ms
1 GPU GUDA device(s) found
CUDA initialized
Search Configuration for gpu named: GeForce GTX 680
Your device:
   - 8 streaming multiprocessors (SM)
   - can run sm version 300
   - bitcoin miner is optimized for 5 gpugrids per SM
   - max value for gpugrid parameter is 2147483647
max nonce 3FFFFFFF
Done allocating CUDA resources for (2048,256)
iterations on gpu=32 blocks=2048 threads=256
Iterations: 63,hashs per iteration 16777216
Target = 00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffff


btw when I exit the app it kills my display driver..

my results for 560ti

C:\Users\stevet\Desktop\rpcminer-mod-x64\bin>rpcminer-mod-cuda.exe -url=btcguild.com:8332 -user=xxx -password=xxx -gpu=0
Client will start 1 miner threads
Work will be refreshed every 4000 ms
1 GPU GUDA device(s) found
CUDA initialized
Search Configuration for gpu named: GeForce GTX 560 Ti
Your device:
   - 8 streaming multiprocessors (SM)
   - can run sm version 210
   - bitcoin miner is optimized for 3 gpugrids per SM
   - max value for gpugrid parameter is 65535
max nonce 3FFFFFFF
Autotuning is on because no gridsize is given
To big grid size fixed!!
Done allocating CUDA resources for (65535,256)
iterations on gpu=32 blocks=65535 threads=256
Iterations: 2,hashs per iteration 536862720
Target = 00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffff
<src\cuda\bitcoinminercuda.cpp>:180[CUDA] Error: unknown error

app crashes..

[psychocoder]

64 bit version tests:

my results.. for 680


C:\Users\gateway\Desktop\rpcminer-mod-x64\bin>rpcminer-mod-cuda.exe -url=btcguild.com:8332 -user=xxx -password=xxx -gpugrid=2048 -gputhreads=256 -gpu=0
Client will start 1 miner threads
Work will be refreshed every 4000 ms
1 GPU GUDA device(s) found
CUDA initialized
Search Configuration for gpu named: GeForce GTX 680
Your device:
   - 8 streaming multiprocessors (SM)
   - can run sm version 300
   - bitcoin miner is optimized for 5 gpugrids per SM
   - max value for gpugrid parameter is 2147483647
max nonce 3FFFFFFF
Done allocating CUDA resources for (2048,256)
iterations on gpu=32 blocks=2048 threads=256
Iterations: 63,hashs per iteration 16777216
Target = 00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffff

Can you run the miner same minits that we can see the hashrate. My driver under windows also crash, thats windows like shutdown^^

my results for 560ti

C:\Users\stevet\Desktop\rpcminer-mod-x64\bin>rpcminer-mod-cuda.exe -url=btcguild.com:8332 -user=xxx -password=xxx -gpu=0
Client will start 1 miner threads
Work will be refreshed every 4000 ms
1 GPU GUDA device(s) found
CUDA initialized
Search Configuration for gpu named: GeForce GTX 560 Ti
Your device:
   - 8 streaming multiprocessors (SM)
   - can run sm version 210
   - bitcoin miner is optimized for 3 gpugrids per SM
   - max value for gpugrid parameter is 65535
max nonce 3FFFFFFF
Autotuning is on because no gridsize is given
To big grid size fixed!!
Done allocating CUDA resources for (65535,256)
iterations on gpu=32 blocks=65535 threads=256
Iterations: 2,hashs per iteration 536862720
Target = 00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffff
<src\cuda\bitcoinminercuda.cpp>:180[CUDA] Error: unknown error

app crashes..

Plese use -aggression=6 as parameter, the gpu is to slow and braek the kernel run limit.

[InqBit]

What hashrate where you getting without cuda?

guiminer poclbm gives me ~137.5

[gateway]

64 bit version tests:

my results.. for 680


C:\Users\gateway\Desktop\rpcminer-mod-x64\bin>rpcminer-mod-cuda.exe -url=btcguild.com:8332 -user=xxx -password=xxx -gpugrid=2048 -gputhreads=256 -gpu=0
Client will start 1 miner threads
Work will be refreshed every 4000 ms
1 GPU GUDA device(s) found
CUDA initialized
Search Configuration for gpu named: GeForce GTX 680
Your device:
   - 8 streaming multiprocessors (SM)
   - can run sm version 300
   - bitcoin miner is optimized for 5 gpugrids per SM
   - max value for gpugrid parameter is 2147483647
max nonce 3FFFFFFF
Done allocating CUDA resources for (2048,256)
iterations on gpu=32 blocks=2048 threads=256
Iterations: 63,hashs per iteration 16777216
Target = 00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffff

Can you run the miner same minits that we can see the hashrate. My driver under windows also crash, thats windows like shutdown^^

Here is what im seeing..

}
119645 khash/s
118523 khash/s
119082 khash/s
119110 khash/s
Found nonce 2A7B43AC
2013-04-08 19:32:46 Found Hash!

[coastermonger]

I've got a GTX 670 and 50miner (via poclbm or cgminer) gives me about 92 mH/s. I'm wanting to see what this does

I'm going to ask a real noob question here, but where do I extract the 7zip files to?  Clicking on the .exe from the bin just causes it immediately open and then stop working, and I can't input any parameters. 

[psychocoder]

I've got a GTX 670 and 50miner (via poclbm or cgminer) gives me about 92 mH/s. I'm wanting to see what this does

I'm going to ask a real noob question here, but where do I extract the 7zip files to?  Clicking on the .exe from the bin just causes it immediately open and then stop working, and I can't input any parameters. 

Tomorrow I write you a simple Bach file To Start the Programm.

[charliemaggot]

I'm going to ask a real noob question here, but where do I extract the 7zip files to?  Clicking on the .exe from the bin just causes it immediately open and then stop working, and I can't input any parameters.  

You don't need to extract 7z files unless you are compiling it yourself in Visual Studio.

Otherwise you just run it from the bin folder:

e.g.

rpcminer-mod-cuda.exe -url=http://<yourpool>:<poolport> -user=<username> -password=<password> -gpu=0 -gputhreads=256 -aggression=8

where
<yourpool> is your pool address, e.g. 127.0.0.1 if mining solo or something like api.bitcoin.cz
<poolport> is your pool's port, normally 8332
<username> is your pool login
<password> .. you guessed it

If you get an error whilst it's running, it may because the GPU processing is taking too long and by default Windows thinks the GPU has crashed after 5 seconds. So try reducing aggression, or add "-gpugrid=256" or "-gpugrid=512".

If you are still getting problems, can you include the error text you get.

[charliemaggot]

I think the general crashing is just because the code is throwing an exception when it sees an error. I'll change it to exit nicely.

btw when I exit the app it kills my display driver..

My driver under windows also crash, thats windows like shutdown

What exactly are you seeing here? I've only got an Amazon EC2 instance to test on, and I don't get an issue. You're Ctrl-C-ing?

[gateway]

What hashrate where you getting without cuda?

guiminer poclbm gives me ~137.5

How does your 480 beat a 680? you overclocking at all?

Im getting around 122~ give or take with cgminer

[gateway]

What exactly are you seeing here? I've only got an Amazon EC2 instance to test on, and I don't get an issue. You're Ctrl-C-ing?

Yea im doing ctrl-c to exit out of the app in a dos prompt on win 7

[InqBit]

What hashrate where you getting without cuda?

guiminer poclbm gives me ~137.5

How does your 480 beat a 680? you overclocking at all?

Im getting around 122~ give or take with cgminer

800 core, instead of 700. Pretty modest OC. Could probably go higher, but this is my main machine & don't want to risk blowing it up...

[coastermonger]

You don't need to extract 7z files unless you are compiling it yourself in Visual Studio.

Otherwise you just run it from the bin folder:

e.g.

rpcminer-mod-cuda.exe -url=http://<yourpool>:<poolport> -user=<username> -password=<password> -gpu=0 -gputhreads=256 -aggression=8

where
<yourpool> is your pool address, e.g. 127.0.0.1 if mining solo or something like api.bitcoin.cz
<poolport> is your pool's port, normally 8332
<username> is your pool login
<password> .. you guessed it

If you get an error whilst it's running, it may because the GPU processing is taking too long and by default Windows thinks the GPU has crashed after 5 seconds. So try reducing aggression, or add "-gpugrid=256" or "-gpugrid=512".

If you are still getting problems, can you include the error text you get.

I really appreciate you guys being so patient with me.  But where exactly do I even input these commands?  I do know how to make a batch file, I go to notepad, type the commands I want and save it as a .bat, drag the file in the folder and try to run it, but this doesn't seem to work. 

[coastermonger]

Okay! I actually got it to work properly.  I created a batch file in the same folder and this time actually included the words rpcminer-mod-cuda.exe at the beginning haha  I know this is pretty typical stuff for you guys but this is one of the first times I've had to deal with batch files.

Initially it crashed, then I added the command -gpugrid 512 and it worked properly. 
all the arguments I'm using are -gpu=0 -gputhreads=256 -aggression=8 -gpugrid=512

Normally, with a basic 50miner program my nvidia GTX 670 will max out at 92-93 mH/s, but now it seems to be pushing 96+ mh/s.  I'm going to continue to tinker and see if I can push it higher. 

[jeprokzki]

hi guys im watching this thread last day can you tell me how to download this? im interested to try it to my gtx660ti im current hashing 101.5mh/s via cgminer v.2,11,4

[charliemaggot]

hi guys im watching this thread last day can you tell me how to download this? im interested to try it to my gtx660ti im current hashing 101.5mh/s via cgminer v.2,11,4

Go to https://github.com/cdmackie/rpcminer-mod

and either use git and checkout the repository, or just click the "Zip" button at the top to download it.

To run, you only need the files from the "bin" directory, so extract the whole thing or just that.

Open a command prompt, go into that bin directory, and run the command line:

rpcminer-mod-cuda.exe -url=http://<pool>:<port> -user=<username> -password=<password> -gpu -aggression=8

where <pool> and <port> are your pool server, e.g. api.bitcoin.cz:8332, and obviously <username> and <password>

If you get an error whilst it's running, it may be because the GPU processing is taking too long and by default Windows thinks the GPU has crashed after 5 seconds.

So try:
1) reducing aggression
2) add "-gpugrid=256" or "-gpugrid=512" (see which works and is best)
3) unplug the monitor from the card (if appropriate)
4) adjust the Windows GPU timeout settings (http://msdn.microsoft.com/en-us/library/windows/hardware/ff569918(v=vs.85).aspx), e.g. TdrDelay to 20 and TdrDdiDelay to 60.

Once its working, you can increase aggression and/or gpugrid to get best settings.

[yxt]

i have compiled a windows version of the miner everyone who wants it send 0.5 btc to my adress and pm me



1ChFy7a3Lsyt3JkgG2NVWXBP4Yebs1YcVV

Willing to Escrow? Screen shots? Support for future updates?

RainmanCC is a scammer!

https://bitcointalk.org/index.php?topic=162803.0;all

[philips]

RainmanCC is a scammer!

https://bitcointalk.org/index.php?topic=162803.0;all

That Asic Advanced thing looks to me like an April Fools' Day prank...not necessary a scam.

[jeprokzki]

hi guys im watching this thread last day can you tell me how to download this? im interested to try it to my gtx660ti im current hashing 101.5mh/s via cgminer v.2,11,4

Go to https://github.com/cdmackie/rpcminer-mod

and either use git and checkout the repository, or just click the "Zip" button at the top to download it.

To run, you only need the files from the "bin" directory, so extract the whole thing or just that.

Open a command prompt, go into that bin directory, and run the command line:

rpcminer-mod-cuda.exe -url=http://<pool>:<port> -user=<username> -password=<password> -gpu -aggression=8

where <pool> and <port> are your pool server, e.g. api.bitcoin.cz:8332, and obviously <username> and <password>

If you get an error whilst it's running, it may be because the GPU processing is taking too long and by default Windows thinks the GPU has crashed after 5 seconds.

So try:
1) reducing aggression
2) add "-gpugrid=256" or "-gpugrid=512" (see which works and is best)
3) unplug the monitor from the card (if appropriate)
4) adjust the Windows GPU timeout settings (http://msdn.microsoft.com/en-us/library/windows/hardware/ff569918(v=vs.85).aspx), e.g. TdrDelay to 20 and TdrDdiDelay to 60.

Once its working, you can increase aggression and/or gpugrid to get best settings.

thanks sir im gonna try this now

[psychocoder]

i have compiled a windows version of the miner everyone who wants it send 0.5 btc to my adress and pm me



1ChFy7a3Lsyt3JkgG2NVWXBP4Yebs1YcVV

Willing to Escrow? Screen shots? Support for future updates?

RainmanCC is a scammer!

https://bitcointalk.org/index.php?topic=162803.0;all

Thanks for the information. Nobody must pay for a binary of a open source software. If someone will pay than our BTC address can found in the signature. All developer, Tester and and and do it for the community!!!

[yxt]

RainmanCC is a scammer!

https://bitcointalk.org/index.php?topic=162803.0;all

That Asic Advanced thing looks to me like an April Fools' Day prank...not necessary a scam.

no, really bad scam try

its my favorit asic scam until now.
So bad that he it has entertainment value  

[philips]

So bad that he has entertainment value 

The Plan 9 from outer space of scams? 

[jeprokzki]

sorry for being noob when i run the rpcminer cuda exe and then i put this
rpcminer-mod-cuda.exe -stratum1.btcguild.com:3333 -user=xxxxxxx -password=xxxxxxx -gpu -aggression=8
why it always say CURL return value= 7?

[gateway]

sorry for being noob when i run the rpcminer cuda exe and then i put this
rpcminer-mod-cuda.exe -stratum1.btcguild.com:3333 -user=xxxxxxx -password=xxxxxxx -gpu -aggression=8
why it always say CURL return value= 7?

rpcminer does not use the stratum protocol

use btcguild.com:8332

[jeprokzki]

still not working sir

[gateway]

still not working sir

rpcminer-mod-cuda.exe -url=btcguild.com:8332 -user=xxx -password=xxx -gpugrid=2048 -gputhreads=256 -gpu=0

should work for you.. enjoy..

[jeprokzki]

thanks sir it's working now but my computer gets really slow it is normal? my old hashrate is 101.5mh/s but now it's 179mh/s im using gtx 660ti oc ed.

[wowfreaks22]

460 at 815mhz with -gpugrid=2048 gets 72mhash, around the same as cgminer unfortunately

[psychocoder]

thanks sir it's working now but my computer gets really slow it is normal? my old hashrate is 101.5mh/s but now it's 179mh/s im using gtx 660ti oc ed.

Is its right that you now faster than before? 101->179 MHash/s
With which program you get 101 MHash/s, is it up to date?

[Ephebus]

Just tested the program mining solo with my GTS 450 (core and shaders overclocked to 950 MHz/1900 MHz, 1 GB GDDR5 memory underclocked to 900 MHz) on Windows XP 64 and it ran with no problems. I used this command line:

rpcminer-mod-cuda.exe -url=http://127.0.0.1 -user=XXX -password=XXX -gpu -aggression=1 -gpugrid=1024

Got ~48 MHash/s with those settings. I already had CUDA SDK 5.0 installed (both the 32-bit and the 64-bit versions). Only needed to download rpcminer-mod-cuda.exe, libeay32.dll and ssleay32.dll.

Client will start 1 miner threads
Work will be refreshed every 4000 ms
Target = 000000000000022fbe00000000000000000000000000000000000000000000
1 GPU GUDA device(s) found
Setting GPU GUDA device 0
CUDA initialized
Search Configuration for gpu named: GeForce GTS 450
Your device:
   - 4 streaming multiprocessors (SM)
   - can run sm version 210
   - bitcoin miner is optimized for 3 gpugrids per SM
   - max value for gpugrid parameter is 65535
max nonce 3FFFFFFF
Done allocating CUDA resources for (1024,256)
iterations on gpu=1 blocks=1024 threads=256
Iterations: 4095,hashs per iteration 262144
48007 khash/s
48120 khash/s
Found nonce 1F948E95
48112 khash/s
48129 khash/s
Found nonce 15DE29EC
48120 khash/s

EVGA Precision showed the card was using 99% of the GPU (that program only goes as high as 99% if I'm not mistaken), but the desktop was absolutely smooth as if nothing else was using the GPU.

Tried -aggression=5 but that only increased the hash rate by ~0.5 MHash/s and the desktop got laggy (but still usable), so I don't think that's worth it in my case. Same thing with -gpugrid - could increase it up to 4096 before the desktop started lagging a little. Hash rate with -gpugrid=4096 increased by ~1 MHash/s only.

[psychocoder]

@Ephebus :

You get better performance if you set -aggression= to a bigger value and -gpugrid also to bigger value. But than you desktop is not smooth. Do you tested also a other miner?

[bugilt]

I'm running a GTX560(fermi) slightly overclocked. I get around 71-73 MHash. Bitminter client gets around 81-83 MHash. I'm pretty sure I'm missing something.

[Ephebus]

@Ephebus :

You get better performance if you set -aggression= to a bigger value and -gpugrid also to bigger value. But than you desktop is not smooth. Do you tested also a other miner?

Yes, I was editing the post with my experiments with -gpugrid when you posted. I could get it up to 4096 before the desktop started lagging a little for an increase of ~1 MHash/s. Not worth it in my case, but will probably make a much bigger difference with more powerful cards.

Also, lowering -gpugrid to 256 the hash rate only dropped to ~47 MHashes/s and I could play encoded XviD and X264 content smoothly at full screen, and was even able to join my Wolfenstein: Enemy Territory server and play with my normal maximum settings at 1680x1050 and 125 FPS without a hitch. Hash rate dropped to ~25 MHash/s while playing though.

With poclbm I can reach ~39 MHash/s at those clock settings but at the expense of an extremely laggy desktop. I never use the normal rpcminer-cuda because it almost freezes my desktop no matter what settings I use and always yields lower hash rates than poclbm. Conclusion: rpcminer-mod-cuda increased my hash rate by over 20% while keeping a completely smooth desktop and even allowed me to play my favorite game while still keeping a good enough hash rate for the GTS 450.

[papamoi]

hi guys

i have win8 and geforce710m on my laptotp

can someone give me the instructions for make it?

thanks

it s just for experimental purpose

[charliemaggot]

i have win8 and geforce710m on my laptotp

can someone give me the instructions for make it?

Start here, https://github.com/cdmackie/rpcminer-mod

Feel free to ask if you have any questions.

[jeprokzki]

thanks sir it's working now but my computer gets really slow it is normal? my old hashrate is 101.5mh/s but now it's 179mh/s im using gtx 660ti oc ed.

Is its right that you now faster than before? 101->179 MHash/s
With which program you get 101 MHash/s, is it up to date?

cgminer v.2,11,4 sir

[Skami]

Once I start it I get this, any suggestions?

Starting parameters are:

rpcminer-mod-cuda.exe -url="http://api.bitcoin.cz:8332" -user="WORKER" -password="PASS"

Client will start 1 miner threads
Work will be refreshed every 4000 ms
1 GPU GUDA device(s) found
Setting GPU GUDA device 0
CUDA initialized
Search Configuration for gpu named: GeForce GTX 670
Your device:
   - 7 streaming multiprocessors (SM)
   - can run sm version 300
   - bitcoin miner is optimized for 5 gpugrids per SM
   - max value for gpugrid parameter is 2147483647
max nonce 3FFFFFFF
Autotuning is on because no gridsize is given
Target = 00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffff
Done allocating CUDA resources for (131040,256)
iterations on gpu=32 blocks=131040 threads=256
Iterations: 1,hashs per iteration 1073479680
<src\cuda\bitcoinminercuda.cpp>:193[CUDA] Error: unknown error
<src\cuda\bitcoinminercuda.cpp>:101[CUDA] Error: unknown error

[charliemaggot]

Once I start it I get this, any suggestions?

Starting parameters are:

rpcminer-mod-cuda.exe -url="http://api.bitcoin.cz:8332" -user="WORKER" -password="PASS"

Add "-gpugrid=512" or try "-gpugrid=256"

rpcminer-mod-cuda.exe -url="http://api.bitcoin.cz:8332" -user="WORKER" -password="PASS" -gpu -gpugrid=512

[Skami]

Once I start it I get this, any suggestions?

Starting parameters are:

rpcminer-mod-cuda.exe -url="http://api.bitcoin.cz:8332" -user="WORKER" -password="PASS"

Add "-gpugrid=512" or try "-gpugrid=256"

rpcminer-mod-cuda.exe -url="http://api.bitcoin.cz:8332" -user="WORKER" -password="PASS" -gpu -gpugrid=512

Getting around 99 Mhash/s while I get around 104 Mhash/s with CGMiner

[gateway]

So the thread says going from 134 - 330.. I have yet to see any sort of leap from using other miners or rpcminer at default.  I realize that people are working on functions to try to improve that and their efforts are greatly appreciated but, I think all of us would like to see a nice bump in our mining with our nvidia cards.

thoughts?

[psychocoder]

So the thread says going from 134 - 330.. I have yet to see any sort of leap from using other miners or rpcminer at default.  I realize that people are working on functions to try to improve that and their efforts are greatly appreciated but, I think all of us would like to see a nice bump in our mining with our nvidia cards.

thoughts?

134 MHash/s to 330 MHash/s is for a Kepler K20 or the consumer version Titan. A big jump with old NVIDIA GPUs is not possible. CGMIner is very near to the maximum power of old NVIDIA GPUs. Al GPUs before Titan has no funnel opertor and need 3 operation for a rotate, the new one need one operation.

[gateway]

So the thread says going from 134 - 330.. I have yet to see any sort of leap from using other miners or rpcminer at default.  I realize that people are working on functions to try to improve that and their efforts are greatly appreciated but, I think all of us would like to see a nice bump in our mining with our nvidia cards.

thoughts?

134 MHash/s to 330 MHash/s is for a Kepler K20 or the consumer version Titan. A big jump with old NVIDIA GPUs is not possible. CGMIner is very near to the maximum power of old NVIDIA GPUs. Al GPUs before Titan has no funnel opertor and need 3 operation for a rotate, the new one need one operation.

Ahh ok sorry my bad, thanks for the clarification.. so your saying the 690's and below will still be somewhat limited or same speed with out much boost?

I have a gtx 680..

[Evan]

So the thread says going from 134 - 330.. I have yet to see any sort of leap from using other miners or rpcminer at default.  I realize that people are working on functions to try to improve that and their efforts are greatly appreciated but, I think all of us would like to see a nice bump in our mining with our nvidia cards.

thoughts?

134 MHash/s to 330 MHash/s is for a Kepler K20 or the consumer version Titan. A big jump with old NVIDIA GPUs is not possible. CGMIner is very near to the maximum power of old NVIDIA GPUs. Al GPUs before Titan has no funnel opertor and need 3 operation for a rotate, the new one need one operation.

Ahh ok sorry my bad, thanks for the clarification.. so your saying the 690's and below will still be somewhat limited or same speed with out much boost?

I have a gtx 680..

GTX 680 IS a Kepler..

[gateway]

So the max I have been able to push my 680 with out oc , is between 120-130.. mostly lows 120's.  I would love to even add 100 more but its not my main mining rig just add's to my pool from my other cards..

[psychocoder]

So the thread says going from 134 - 330.. I have yet to see any sort of leap from using other miners or rpcminer at default.  I realize that people are working on functions to try to improve that and their efforts are greatly appreciated but, I think all of us would like to see a nice bump in our mining with our nvidia cards.

thoughts?

134 MHash/s to 330 MHash/s is for a Kepler K20 or the consumer version Titan. A big jump with old NVIDIA GPUs is not possible. CGMIner is very near to the maximum power of old NVIDIA GPUs. Al GPUs before Titan has no funnel opertor and need 3 operation for a rotate, the new one need one operation.

Ahh ok sorry my bad, thanks for the clarification.. so your saying the 690's and below will still be somewhat limited or same speed with out much boost?

I have a gtx 680..

GTX 680 IS a Kepler..

Onyl Kepler equal or higher than titan GPUs. GTX680 is K10 architecture, you can say it is a better fermi. K10 has no funnel operator :-(. Thay have the same amount of 32Bit registers and a lot of opration have the same speed  than a k20 but the importend operations are not available.

[ssateneth]

So did this thread ever amount to anything? Will I ever see a "significant" mhash from my gtx 680? I use win7 x64. Linux not an option for me. I tried "-gpu=0  -aggression=8 -gpugrid=2048 -gputhreads=256" but I only got 112 mhash.

[Evan]

So the thread says going from 134 - 330.. I have yet to see any sort of leap from using other miners or rpcminer at default.  I realize that people are working on functions to try to improve that and their efforts are greatly appreciated but, I think all of us would like to see a nice bump in our mining with our nvidia cards.

thoughts?

134 MHash/s to 330 MHash/s is for a Kepler K20 or the consumer version Titan. A big jump with old NVIDIA GPUs is not possible. CGMIner is very near to the maximum power of old NVIDIA GPUs. Al GPUs before Titan has no funnel opertor and need 3 operation for a rotate, the new one need one operation.

Ahh ok sorry my bad, thanks for the clarification.. so your saying the 690's and below will still be somewhat limited or same speed with out much boost?

I have a gtx 680..

GTX 680 IS a Kepler..

Onyl Kepler equal or higher than titan GPUs. GTX680 is K10 architecture, you can say it is a better fermi. K10 has no funnel operator :-(. Thay have the same amount of 32Bit registers and a lot of opration have the same speed  than a k20 but the importend operations are not available.

I am waiting for the 700 GPUs to come out, or get a deal on another titan.


Psycho So none of the Kepler Base Quadros can do this either?

[psychocoder]

I am waiting for the 700 GPUs to come out, or get a deal on another titan.
Psycho So none of the Kepler Base Quadros can do this either?

I think so, but I think there is no Quadro out with K20 architecture. At the moment the GTX Titan is also to expensive to buy.

[slon_ru]

Hi charliemaggot !

I have nv670 - 100 m.hash/sec with GUIminer.

If i run rpcminer-mod-cuda.exe with GUIminer i get:

Faulting application name: rpcminer-mod-cuda.exe, version: 0.0.0.0, time stamp: 0x5163a5d3
Faulting module name: MSVCR100.dll, version: 10.0.40219.325, time stamp: 0x4df2bcac
Exception code: 0x40000015
Faulting application path: D:\bitcoin\miner\guiminer\miners\puddinpop\bk\rpcminer-mod-cuda.exe
Faulting module path: D:\bitcoin\miner\guiminer\miners\puddinpop\MSVCR100.dll
Report Id: b1683d16-a64f-11e2-b5bb-5404a61bb659

Display driver nvlddmkm stopped responding and has successfully recovered.



With command line i get:

"Could not retrieve work from RPC server.
CURL return value = 22"

I set TdrDelay and TdrDdiDelay = 10,60.

Can you help me to run rpcminer-mod-cuda.exe ?

br

[Amph]

nothing changed, still 100mh with my 670

[charliemaggot]

@slon_ru can you post the manual command line (hide your username/password) that causes the crash, and the output you are getting.

CURL error 22 is a HTTP error from the server, is your pool working ok?

If you reduce -gpugrid down to 256 or 512, do you still get the error?

Lastly, please try downloading and running the files from the debug branch, which will hopefully give more information on the crash:

https://github.com/cdmackie/rpcminer-mod/tree/Debug/bin

Again, post any errors.

[slon_ru]

@charliemaggot Thx!
It was my fault, i wrote without "-password",i have no pass.

Now i have 90 m.hash/s with rpcminer-mod-cuda.

br.

[Jimmy2011]

It seems that no additional hashrate for GTX 580 here.

[Lacan82]

I can't even get it to run. I get unable to load cuda module error. When I try compile the module myself per the instructions...I get this error:

LIBCMT.lib(crt0.obj) : error LNK2019: unresolved external symbol _main reference
d in function ___tmainCRTStartup
a.exe : fatal error LNK1120: 1 unresolved externals

No one can tell me how to fix it. I'm not much for a programmer..

[psychocoder]

I can't even get it to run. I get unable to load cuda module error. When I try compile the module myself per the instructions...I get this error:

LIBCMT.lib(crt0.obj) : error LNK2019: unresolved external symbol _main reference
d in function ___tmainCRTStartup
a.exe : fatal error LNK1120: 1 unresolved externals

No one can tell me how to fix it. I'm not much for a programmer..

Is your driver up to date? If not please upodate your driver and run the precompiled version.

[supwang]

Is this software only for BTC? can not use for LTC?

[Lacan82]

I can't even get it to run. I get unable to load cuda module error. When I try compile the module myself per the instructions...I get this error:

LIBCMT.lib(crt0.obj) : error LNK2019: unresolved external symbol _main reference
d in function ___tmainCRTStartup
a.exe : fatal error LNK1120: 1 unresolved externals

No one can tell me how to fix it. I'm not much for a programmer..

Is your driver up to date? If not please upodate your driver and run the precompiled version.

Yes my drivers are up to date

[charliemaggot]

@Lacan82 Which card do you have?

@supwang Yes, only BTC.

[Lacan82]

@Lacan82 Which card do you have?

@supwang Yes, only BTC.

GTX 570 and  GT 650m

both have the issue

[Aggrophobia]

i have a GTX Titan and i got only 360MHash/s with 1150mhz gpu clock, is it possible that i get more MHashes with linux ?

changing -gputhreads=x has no effect on the rpcminer :/ it stays by 256

[supwang]

@Lacan82 Which card do you have?

@supwang Yes, only BTC.

Thank you.

[mrb]

So Kepler does have a bit rotate instruction. Finally, Nvidia!

Does it have the equivalent of AMD's bfi_int for another speedup? It does not seem so.

[charliemaggot]

I can't even get it to run. I get unable to load cuda module error. When I try compile the module myself per the instructions...I get this error:

LIBCMT.lib(crt0.obj) : error LNK2019: unresolved external symbol _main reference
d in function ___tmainCRTStartup
a.exe : fatal error LNK1120: 1 unresolved externals

No one can tell me how to fix it. I'm not much for a programmer..

This is a mismatch between the runtime libraries, I guess the project has an error. Make sure you are building a Release/x64 build. In the meantime, can you download the Debug branch from https://github.com/cdmackie/rpcminer-mod/tree/Debug/bin and see if you get the same problems, and post any output.

[psychocoder]

i have a GTX Titan and i got only 360MHash/s with 1150mhz gpu clock, is it possible that i get more MHashes with linux ?

changing -gputhreads=x has no effect on the rpcminer :/ it stays by 256

Can you please add the full name of your grafic card! Our post a link to the shop and product were you have board the gpu. I think there is no GTX Titan with 1150 mhz. I my theoretic calculation a GTX Titan with 1150mHz must get 500+ MHash/s. Please post the first 20 lines output from rpcminer thats help me to see why you Hashrate is so low.

And yes the paramater -gputhreads=x is disabled because the kernel are compiled for 256 threads only.

[Aggrophobia]

of course its oced, normal boost clock 966 (61% ASIC) -> 300MHash/s

http://www.asus.com/Graphics_Cards/GTXTITAN6GD5/#specifications

posting the lines, when i come home

[z1ppy]

has anyone compiled binaries for Windows x64? very interested in this

thanks

[psychocoder]

has anyone compiled binaries for Windows x64? very interested in this

thanks

charliemaggot  created windows binaries:
https://github.com/cdmackie/rpcminer-mod/tree/master/bin

[z1ppy]

has anyone compiled binaries for Windows x64? very interested in this

thanks

charliemaggot  created windows binaries:
https://github.com/cdmackie/rpcminer-mod/tree/master/bin

thank you!

[z1ppy]

So the thread says going from 134 - 330.. I have yet to see any sort of leap from using other miners or rpcminer at default.  I realize that people are working on functions to try to improve that and their efforts are greatly appreciated but, I think all of us would like to see a nice bump in our mining with our nvidia cards.

thoughts?

I saw you mention 560 Ti earlier. That's my card. What hash rate did you see before/after this mod? I'm getting 80-90 mh/s now using GUIMiner w/ rpcminer-cuda.exe but would welcome any additional boost if possible.

If this is about the best I can do with current card, I will likely do a new build + move to Litecoin soon.

thanks

[Signus]

Too bad my gaming rig is a GTX 480 - Fermi. A lot of wasted power there.

Awesome post though, respect for anybody willing to develop in CUDA.

[Aggrophobia]

[Notanon]

Just tried running rpcminer-mod-cuda in Windows 7 32-bit version and it throws up an error, stating that it's not compatible with the version of Window's I'm running. What am I doing wrong?

[charliemaggot]

Just tried running rpcminer-mod-cuda in Windows 7 32-bit version and it throws up an error, stating that it's not compatible with the version of Window's I'm running. What am I doing wrong?

The pre-built binary is 64-bit, for 32-bit you can either build it yourself or download the last pre-built binary files from:

https://github.com/cdmackie/rpcminer-mod/tree/efefff3a8535d0ae544c315cc42e4bf2967c3abd/bin

[Notanon]

Hmm, might have to try and build one myself. Just tried using the last pre-built files and they didn't work.

[3devilred]

rpcminer-cuda-mod do not work on coinotron.com? thanks

[charliemaggot]

rpcminer-cuda-mod do not work on coinotron.com? thanks

You are probably trying to use the stratum protocol. Use a local stratum proxy or switch to the getwork protocol if they support it.

Otherwise, post the command you are using.

[charliemaggot]

Hmm, might have to try and build one myself. Just tried using the last pre-built files and they didn't work.

You need to be more specific.

I can build the latest if you can't.

[Notanon]

Hmm, might have to try and build one myself. Just tried using the last pre-built files and they didn't work.

You need to be more specific.

I can build the latest if you can't.

As in, I copied the files from that link into the bin folder and tried running the cuda win32 file from there.

If you could build the latest one, that would be appreciated. I'm not as advanced in programming and IT as I used to be, given it's been a good few years since I last tinkered around with PCs. I'm used to just unzipping files into directories, then clicking on the appropriate executable file and away I go, like how cbuchner1's CUDAminer app works.

[zoktar]

Hello, im getting 0mhash/s on both psychocoder-germany and cdmackie. I have no idea whats going on.

[Lacan82]

Hello, im getting 0mhash/s on both psychocoder-germany and cdmackie. I have no idea whats going on.

Update drivers?

[psychocoder]

Hello, im getting 0mhash/s on both psychocoder-germany and cdmackie. I have no idea whats going on.

Please post the first 30 lines output of the program in this forum that we can help you.

[slon_ru]

del

[charliemaggot]

As in, I copied the files from that link into the bin folder and tried running the cuda win32 file from there.

If you could build the latest one, that would be appreciated. I'm not as advanced in programming and IT as I used to be, given it's been a good few years since I last tinkered around with PCs. I'm used to just unzipping files into directories, then clicking on the appropriate executable file and away I go, like how cbuchner1's CUDAminer app works.

I meant, specifically what errors are you getting

Anyway, I have built the 32bit versions and put them in:

https://github.com/cdmackie/rpcminer-mod/tree/master/bin/win32

[Notanon]

As in, I copied the files from that link into the bin folder and tried running the cuda win32 file from there.

If you could build the latest one, that would be appreciated. I'm not as advanced in programming and IT as I used to be, given it's been a good few years since I last tinkered around with PCs. I'm used to just unzipping files into directories, then clicking on the appropriate executable file and away I go, like how cbuchner1's CUDAminer app works.

I meant, specifically what errors are you getting

Anyway, I have built the 32bit versions and put them in:

https://github.com/cdmackie/rpcminer-mod/tree/master/bin/win32

Thanks! Ok, just tried running it and I got the following error message:

C:\Mining\RPCMIN~1\RPCMIN~2\bin\win32\RPCMIN~1.EXE
The NTVDM CPU has encountered an illegal instruction.
CS:0e4b IP:0528 OP:63 6f 6e 74 65 Choose 'Close' to terminate the application

I'm running a GT 220M, so that could be an issue. If it also helps, it uses Compute Capability 1.1. Would be nice if I could just take the relevant code from cbuchner1's program and adapt it to something like CGminer, which I know normally works fine with my laptop, but my C++ programming skills are too basic at the moment to be able to do that.

[zoktar]

Hello, im getting 0mhash/s on both psychocoder-germany and cdmackie. I have no idea whats going on.

Update drivers?

Thought i had done that, turns out i hadnt, works fine now thanks. Was 310 and upgraded to 310-updates , ubuntu raring, case anyone else suffers.

Edit: Issue has returned, investigating. also a crash.

[ewitte]

I've been able to get up to about 190MH/s out of a normal GTX 680 but its still really not worth it.  You can get double that for a card half the price.

[3devilred]

I'm undermining of coinotron with protocol PPcoin and I noticed a problem, I bring my gtx 560 to 918 mhz and I get 80000 kh / s on the site but I have always been a rate ' of 57.8 mh / s, sometimes I also marks more than 200 mh / s. and ' a problem with the site, or mine? ? thanks

edit: I forgot, many times on the site tells me 0 mh / s.rpcminer but taxis always on 79/80000 kh / s

[mhps]

I just tried this on c2075. The result agrees well with the c2050 card (107mH/s). There is fluctuation (from 70 to 140).
If I run ufasoft or cgminer I get 98mH/s. So there is ~10% improvement. Thanks.
btw I find a 100+% improvement of LTC mining speed with cuda optimization here https://bitcointalk.org/index.php?topic=167229.60.

Code:

rpcminer-mod-cuda.exe  -gpu=1 -url=http://api.bitcoin.cz:8332 -user=mh001.worker3 -password=snail -threads=1  -aggression=10 -workrefreshms=3000
Client will start 1 miner threads
Work will be refreshed every 3000 ms
2 GPU GUDA device(s) found
Setting GPU GUDA device 1
CUDA initialized
Search Configuration for gpu named: Tesla C2075
Your device:
   - 14 streaming multiprocessors (SM)
   - can run sm version 200
   - bitcoin miner is optimized for 3 gpugrids per SM
   - max value for gpugrid parameter is 65535
max nonce 3FFFFFFF
Autotuning is on because no gridsize is given
Done allocating CUDA resources for (8190,256)
iterations on gpu=512 blocks=8190 threads=256
Iterations: 1,hashs per iteration 1073479680
Target = 00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffff
Found nonce 17F376CB
2013-04-30 16:03:29 Found Hash!
Hashs found: 1
107333 khash/s
...
Hashs found: 5
Found nonce 286C65D
2013-04-30 16:05:53 Found Hash!
Hashs found: 6
143121 khash/s
107312 khash/s
Found nonce 33462917
2013-04-30 16:06:36 Found Hash!
Hashs found: 7
107312 khash/s
71546 khash/s
107326 khash/s
107326 khash/s

[420]

who can i pay to give me step by step under windows 7 to download, make my bat file and run

BTC0.025

[bitcoiner49er]

Should I see some other confirmation of hashes?

Code:

rpcminer-mod-cuda.exe -url=http
://api.bitcoin.cz:8332 -user=[user] -password=[pasword] -gpu -gputhreads=
256 -aggression=11
Client will start 1 miner threads
Work will be refreshed every 4000 ms
1 GPU GUDA device(s) found
Setting GPU GUDA device 0
CUDA initialized
Search Configuration for gpu named: Quadro FX 580
Your device:
   - 4 streaming multiprocessors (SM)
   - can run sm version 110
   - bitcoin miner is optimized for 2 gpugrids per SM
   - max value for gpugrid parameter is 65535
max nonce 3FFFFFFF
Autotuning is on because no gridsize is given
Done allocating CUDA resources for (4088,256)
iterations on gpu=1024 blocks=4088 threads=256
Iterations: 1,hashs per iteration 1071644672
Target = 00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffff
7596697781 khash/s
7584271118 khash/s
7730650780 khash/s
7673471550 khash/s
7482086041 khash/s
7757530201 khash/s
7527873405 khash/s
7349241955 khash/s
7549436565 khash/s
7698070378 khash/s
7347093133 khash/s
7342058776 khash/s
7063781576 khash/s

[jeprokzki]

can anyone list a rpc mining settings and overclocking settings for each nvidia cards starting to 600series? it might be very helpful to others who wants to maximize the potential hashing power rate of the nvidia cards.  btw im using 660 ti

[mhps]

I am using this to mine PPCoin on coinotron. The setup is the same as in my post #195 . There were 144  this

Code:

Found nonce 3FD7CA5E 
2013-05-05 13:54:53 Found Hash! 

within a period of 100 minutes. But coinotron only reported 19 shares. What is really strange is that the average kh/s reported by coinotron agrees with the hashrate printed by the miner on average. That means the rate at which my miner finds shares seen by the pool is correct, but the "Found Hash! " is 7-8 times too often. Why is that?

EDIT: earlier port #

[psychocoder]

I just tried this on c2075. The result agrees well with the c2050 card (107mH/s). There is fluctuation (from 70 to 140).

The fluctuation come from you "slow" card. The summery is build every 30 sec. It can be that some times the count goes to the next or previous intervall. A drop is also possible if you get no connection to the getwork server. The best is to use the http://mining.bitcoin.cz/mining-proxy-howto stratun proxy. If you use them you get better and smoother results.

psychocoder

[psychocoder]

I am using this to mine PPCoin on coinotron. The setup is the same as in my post #195 . There were 144  this

Code:

Found nonce 3FD7CA5E 
2013-05-05 13:54:53 Found Hash! 

within a period of 100 minutes. But coinotron only reported 19 shares. What is really strange is that the average kh/s reported by coinotron agrees with the hashrate printed by the miner on average. That means the rate at which my miner finds shares seen by the pool is correct, but the "Found Hash! " is 7-8 times too often. Why is that?

EDIT: earlier port #

I have never test the miner with PPCoin. It looks like many rejected hashes.

[mhps]

I have never test the miner with PPCoin. It looks like many rejected hashes.

High rejection rate can't exlpain why the hash rate seen by the pool agrees very well with the rate what miner prints out.

[GoldBit89]

Any way to have a log file saved to computer much like cgminer can? If so , what is the command please.


Thanks.

[Rayce185]

Hello guys!
I was wondering what kind of parameters I have to set up to optimize the miner for my GPU...
It's a 660ti (GK104) and the current parameters are "-gpu -aggression=13 -gpugrid=128 -gputhreads=512".
Unfortunately the GPU is only running at around 60% power, reaching around 95-98MH/s.
With cudaminer (scrypt, I know) I was able to get nearly 180kH/s with 100% power usage.

Could anyone please help me out...?

[420]

Hello guys!
I was wondering what kind of parameters I have to set up to optimize the miner for my GPU...
It's a 660ti (GK104) and the current parameters are "-gpu -aggression=13 -gpugrid=128 -gputhreads=512".
Unfortunately the GPU is only running at around 60% power, reaching around 95-98MH/s.
With cudaminer (scrypt, I know) I was able to get nearly 180kH/s with 100% power usage.

Could anyone please help me out...?

who runs a mining help group or site? that could be profitable