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Author Topic: [ANN] cudaMiner & ccMiner CUDA based mining applications [Windows/Linux/MacOSX]  (Read 3313476 times)
teslaman
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June 30, 2013, 09:56:39 AM
 #901

Anyone had any luck with the GTX 260, I had an old one lying around which I chucked in a test machine but can't get more than 20kh out of it.

I get 44 kHash with Windows 7, cudaminer Version older than 2013-04-30 using

-i0 -l S27x3

It should work a bit faster on Windows XP or Linux

Christian

I'm getting 37 KH/s on my GTX 260 using this configuration. Sweet!  Smiley

I had to join and post THIS, because these comparison numbers are oddly so much lower than what I'm getting. Huh Shoot, like I said in that post, I'm getting 43kh out of my old 8800GTS! I had also added my cards to the "Google Docs spreadsheet" so you can see my exact settings, but 30x7 is what I'm using on my GTX 280. In an update to that post, I've overclocked the 280 some more and now I'm getting around 110-113kh out of it. Even more confusing, the 260s are benchmarked pretty close to the 280s and are said to overclock even better than them.

cbuchner1, thanks for this awesome miner! I don't get why my numbers are so different, but hopefully it turns out to be something that can benefit everyone. Cool

KnCMiner Firmware - Mercury/Saturn/Jupiter/Neptune/Titan
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July 01, 2013, 02:05:03 PM
 #902

People asking for pool failover support should direct this question upstream towards the pooler's cpuminer project. I am working on a cudaminer release that is essentially a clean fork of that project, so it can always pull in any relevant feature enhancements or additions from upstream.



Glad to see the project is not dead. I really appreciate the effort you put into it  Wink
bradmaxwell
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July 01, 2013, 03:19:04 PM
 #903

Sorry for nb question but i tried compile on windows and receive that message:

Code:
C:/Users/.../Desktop/COMP/CudaMiner-master/spinlock_kernel.cu(157): warning : Cannot tell what pointer points to, assuming global memory space

and

Code:
C:\Users\...\Desktop\COMP\CudaMiner-master>"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v5.0\bin\nvcc.exe" -gencode=arch=compute_35,code=\"sm_35,compute_35\" --use-local-env --cl-version 2010 -ccbin "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin"  -I"." -I"compat" -I"compat\jansson" -I"compat\getopt" -I"..\pthreads\Pre-built.2\include" -I"..\curl-7.29.0\include" -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v5.0\include" -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v5.0\include" -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v5.0\include" --opencc-options -LIST:source=on   --keep --keep-dir "Release" -maxrregcount=64 --ptxas-options=-v --machine 32 --compile     -DWIN32 -DNDEBUG -D_CONSOLE -D_CRT_SECURE_NO_WARNINGS -DCURL_STATICLIB -D_MBCS -Xcompiler "/EHsc /W3 /nologo /O2 /Zi  /MD  " -o "Release\titan_kernel.cu.obj" "C:\Users\Glaucius\Desktop\COMP\CudaMiner-master\titan_kernel.cu"
nvcc : warning : Option '--opencc-options (-Xopencc)' is obsolete and ignored, when targeting compute_20, sm_20, or higher
  titan_kernel.cu

and finnaly:
Code:
util.cpp
LINK : warning LNK4075: ignoring '/INCREMENTAL' due to '/LTCG' specification
LINK : fatal error LNK1181: cannot open input file 'pthreadVC2.lib'

Build FAILED.

Another error when i put those libraries upper
Code:
LINK : warning LNK4075: ignoring '/INCREMENTAL' due to '/LTCG' specification
cuda-miner.obj : error LNK2001: unresolved external symbol __imp__pthread_mutex_init
cuda-miner.obj : error LNK2001: unresolved external symbol __imp__pthread_create
cuda-miner.obj : error LNK2001: unresolved external symbol __imp__pthread_join
cuda-miner.obj : error LNK2001: unresolved external symbol __imp__pthread_mutex_unlock
cuda-miner.obj : error LNK2001: unresolved external symbol __imp__pthread_mutex_lock
util.obj : error LNK2001: unresolved external symbol __imp__pthread_cond_signal
util.obj : error LNK2001: unresolved external symbol __imp__pthread_mutex_destroy
util.obj : error LNK2001: unresolved external symbol __imp__pthread_cond_init
util.obj : error LNK2001: unresolved external symbol __imp__pthread_cond_timedwait
util.obj : error LNK2001: unresolved external symbol _curl_easy_reset
util.obj : error LNK2001: unresolved external symbol __imp__pthread_cond_destroy
util.obj : error LNK2001: unresolved external symbol __imp__pthread_cond_wait
C:\Users\Glaucius\Desktop\COMP\CudaMiner-master\Release\cudaminer.exe : fatal error LNK1120: 12 unresolved externals
cbuchner1
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July 02, 2013, 01:06:54 PM
 #904


I don't think you used the correct pthreads version when linking. Try the one I linked to in first post. These are .dll files plus accompanying .lib files for linking.

Christian
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July 02, 2013, 02:39:23 PM
 #905


"results does not validate on CPU!"

I get this error on every single accepted hash. Long poll works well so it is entirely unrelated to pools or latency (on which I have more than 99% efficiency on other miners anyway).

My setup: a 9600GSO running on a C2D.  Less than 1 g of ram. I've tried a lot of configs from autotune's 70x2 down to 6x1 with & without -m, -C, S, etc.
Cards gives me an pretty steady 12 kh/s rate, but nothing ever gets accepted.

Windows XP, Drivers, cuda, miner etc is up to date. pooler's cpuminer works well on this machine.

And apparently I'm not the only one with this problem... Any ideas?  I wanted to try an older version of cudaminer but couldn't find any.

I just want to work this card to death and cudaminer is the best program to do it with, but right now it feels like there's a subtle issue that is making all this effort go to waste...

Thx for any help Smiley


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cbuchner1
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July 02, 2013, 03:58:59 PM
 #906

My GK208 based GT640 card arrived (Asus GT640-1GD5-L). Uses 49 Watts of power (TDP) and performs 45 kHash/sec currently running the Titan kernel with -C 2 -l 42x3  I am going to tune and optimize this one further.

EDIT: the GK107 based GT640 cards with GDDR3 memory achieved 40 kHash in comparison. I think they were rated 65 Watts TDP.

EDIT2: corrected TDP figures. Also, the GT630 is 25 Watts TDP, but has slower GDDR3 memory only.

Christian

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July 02, 2013, 05:54:38 PM
 #907

Hey Christian could you tell me please nb questions if im doing it right.
Im using 2010 Visual Studio and when you said "dependencies" i linked it inside properties of project. Has 3 places to put it 1st and 2nd is on "general" menu that has "(include and lib file locations)" that you speak about. And there is other menu called "linking" or "link" (im not in my pc). What dep. i must to link? openssl, curl and pthreads? Those "prebuildt" that comes with curl and pthreads works? or i must to build that dependencies? i ask it cuz 2010 Visual Studio request to "covert" files when i open curl and pthreads project, and im not shure if this process preserve the intention of this dependencies.

Thanks for 1st reply i thought you were disappeared Cheesy
cbuchner1
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July 02, 2013, 10:28:46 PM
 #908

Here's the relevant part of my directory structure of my Visual 2010 projects folder.
The project files I ship should allow you to build it right away, if you stick to the same
structure.

the pre-built ones for pthreads should work. I do not actually remember if I had to build
OpenSSL, curl, or zlib myself.

Code:

mp Datentr„ger in Laufwerk D: ist Windows8
 Volumeseriennummer: 142D-1DB4

 Verzeichnis von D:\Christian\Documents\Visual Studio 2010\Projects

03.07.2013  00:19    <DIR>          .
03.07.2013  00:19    <DIR>          ..
02.05.2013  20:13    <DIR>          cudaminer-src-2013.04.30
28.03.2013  16:29    <DIR>          curl-7.29.0
26.03.2013  02:22    <DIR>          OpenSSL-Win32
06.04.2013  00:25    <DIR>          pthreads
02.05.2013  18:33    <DIR>          zlib-1.2.6
              15 Datei(en),     32.004.696 Bytes

 Verzeichnis von D:\Christian\Documents\Visual Studio 2010\Projects\cudaminer-src-2013.04.30

02.05.2013  20:13    <DIR>          .
02.05.2013  20:13    <DIR>          ..
30.04.2013  21:20            48.899 aclocal.m4
30.04.2013  21:06                15 AUTHORS
30.04.2013  21:06                46 autotools.sh
30.04.2013  21:06                15 ChangeLog
30.04.2013  19:21    <DIR>          compat
30.04.2013  21:06               366 compat.h
30.04.2013  21:06             3.707 compile
30.04.2013  21:06            44.892 config.guess
30.04.2013  21:06            33.387 config.sub
30.04.2013  21:20           228.732 configure
30.04.2013  21:19             3.521 configure.ac
30.04.2013  21:06                68 configure.sh
30.04.2013  21:06                16 COPYING
30.04.2013  21:06            32.930 cuda-miner.cpp
28.03.2013  17:11             5.057 cudaminer-config.h
30.04.2013  21:06             5.036 cudaminer-config.h.in
02.05.2013  20:13        38.490.112 cudaminer.sdf
30.04.2013  21:06               884 cudaminer.sln
30.04.2013  21:06             8.268 cudaminer.vcxproj
30.04.2013  21:06             3.924 cudaminer.vcxproj.filters
01.05.2013  00:41               751 cudaminer.vcxproj.user
30.04.2013  21:06            17.867 depcomp
30.04.2013  21:06             7.069 elist.h
30.04.2013  21:06                15 INSTALL
30.04.2013  21:06            13.620 install-sh
02.05.2013  20:02    <DIR>          ipch
30.04.2013  21:06            18.431 LICENSE.txt
30.04.2013  21:06             1.325 Makefile.am
30.04.2013  21:20            36.090 Makefile.in
30.04.2013  21:06             4.217 miner.h
30.04.2013  21:06            11.135 missing
30.04.2013  21:06                 1 NEWS
30.04.2013  21:06                15 README
30.04.2013  21:13             9.539 README.txt
01.05.2013  12:05            55.479 salsa_kernel.cu
30.04.2013  20:21            27.222 scrypt.cpp
30.04.2013  21:06            11.637 sha2.cpp
30.04.2013  21:06            22.907 spinlock_kernel.cu
30.04.2013  21:06            19.694 titan_kernel.cu
30.04.2013  21:06            14.721 util.cpp
              38 Datei(en),     39.181.610 Bytes

 Verzeichnis von D:\Christian\Documents\Visual Studio 2010\Projects\cudaminer-src-2013.04.30\compat

30.04.2013  19:21    <DIR>          .
30.04.2013  19:21    <DIR>          ..
30.04.2013  19:21    <DIR>          getopt
30.04.2013  21:06             1.102 gettimeofday.c
30.04.2013  21:06                35 inttypes.h
30.04.2013  19:21    <DIR>          jansson
30.04.2013  21:06                57 Makefile.am
30.04.2013  21:20            17.052 Makefile.in
30.04.2013  21:06                74 stdbool.h
30.04.2013  19:21    <DIR>          sys
30.04.2013  21:06                40 unistd.h
               6 Datei(en),         18.360 Bytes

 Verzeichnis von D:\Christian\Documents\Visual Studio 2010\Projects\cudaminer-src-2013.04.30\compat\getopt

30.04.2013  19:21    <DIR>          .
30.04.2013  19:21    <DIR>          ..
30.04.2013  21:06             3.412 getopt.h
30.04.2013  21:06            15.968 getopt_long.c
               2 Datei(en),         19.380 Bytes

 Verzeichnis von D:\Christian\Documents\Visual Studio 2010\Projects\cudaminer-src-2013.04.30\compat\jansson

30.04.2013  19:21    <DIR>          .
30.04.2013  19:21    <DIR>          ..
30.04.2013  21:06             2.164 config.h
30.04.2013  21:06            12.766 dump.c
30.04.2013  21:06             9.028 hashtable.c
30.04.2013  21:06             6.007 hashtable.h
30.04.2013  21:06             5.634 jansson.h
30.04.2013  21:06             1.379 jansson_private.h
30.04.2013  21:06            20.464 load.c
30.04.2013  21:06               288 Makefile.am
30.04.2013  21:20            14.293 Makefile.in
30.04.2013  21:06             2.130 strbuffer.c
30.04.2013  21:06               866 strbuffer.h
30.04.2013  21:06             4.022 utf.c
30.04.2013  21:06               778 utf.h
30.04.2013  21:06               307 util.h
30.04.2013  21:06            19.531 value.c
              15 Datei(en),         99.657 Bytes

 Verzeichnis von D:\Christian\Documents\Visual Studio 2010\Projects\cudaminer-src-2013.04.30\compat\sys

30.04.2013  19:21    <DIR>          .
30.04.2013  19:21    <DIR>          ..
30.04.2013  21:06                89 time.h
               1 Datei(en),             89 Bytes

 Verzeichnis von D:\Christian\Documents\Visual Studio 2010\Projects\curl-7.29.0

28.03.2013  16:29    <DIR>          .
28.03.2013  16:29    <DIR>          ..
12.12.2012  00:32            90.761 acinclude.m4
06.02.2013  11:47            38.515 aclocal.m4
12.12.2012  00:32             4.474 Android.mk
28.03.2013  18:45    <DIR>          build
07.01.2013  00:33            14.743 buildconf
06.02.2013  12:14           194.530 CHANGES
28.03.2013  16:28    <DIR>          CMake
06.02.2013  11:47            33.879 CMakeLists.txt
21.01.2013  00:03             7.274 compile
21.01.2013  00:03            44.826 config.guess
21.01.2013  00:03            35.543 config.sub
06.02.2013  11:47         1.118.371 configure
06.02.2013  11:47           104.621 configure.ac
06.02.2013  11:47             1.044 COPYING
12.12.2012  00:32             4.357 curl-config.in
12.12.2012  00:32             1.792 curl-style.el
21.01.2013  00:03            20.899 depcomp
28.03.2013  16:28    <DIR>          docs
28.03.2013  16:28    <DIR>          include
12.12.2012  00:32             5.579 install-sh
28.03.2013  16:28    <DIR>          lib
12.12.2012  00:32             1.501 libcurl.pc.in
21.01.2013  00:03           283.670 ltmain.sh
28.03.2013  16:28    <DIR>          m4
12.12.2012  00:32             5.099 MacOSX-Framework
06.02.2013  12:14             8.121 Makefile
12.12.2012  00:32             5.359 Makefile.am
06.02.2013  12:14            36.190 Makefile.in
12.12.2012  00:32             2.833 Makefile.msvc.names
12.12.2012  00:32             5.342 maketgz
12.12.2012  00:32             8.867 missing
12.12.2012  00:32               683 mkinstalldirs
28.03.2013  16:28    <DIR>          packages
12.12.2012  00:32             1.607 README
06.02.2013  12:06             4.715 RELEASE-NOTES
12.12.2012  00:32             1.973 sample.emacs
28.03.2013  16:28    <DIR>          src
28.03.2013  16:28    <DIR>          tests
12.12.2012  00:32               832 vc6curl.dsw
28.03.2013  16:28    <DIR>          winbuild
              30 Datei(en),      2.088.000 Bytes

 Verzeichnis von D:\Christian\Documents\Visual Studio 2010\Projects\OpenSSL-Win32

26.03.2013  02:22    <DIR>          .
26.03.2013  02:22    <DIR>          ..
26.03.2013  02:22    <DIR>          bin
11.02.2013  09:26           435.662 changes.txt
26.03.2013  02:22    <DIR>          exp
11.02.2013  09:26            46.614 faq.txt
26.03.2013  02:22    <DIR>          include
26.03.2013  02:22    <DIR>          lib
11.02.2013  10:35         1.178.624 libeay32.dll
11.02.2013  10:35           269.824 libssl32.dll
11.02.2013  09:02             6.279 license.txt
11.02.2013  09:26            27.423 news.txt
10.05.2004  17:23            30.423 OpenSSLhelp.chm
11.02.2013  09:26             9.130 readme.txt
11.02.2013  10:35           269.824 ssleay32.dll
26.03.2013  02:22            31.855 unins000.dat
26.03.2013  02:21           715.038 unins000.exe
              11 Datei(en),      3.020.696 Bytes

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06.04.2013  00:25    <DIR>          .
06.04.2013  00:25    <DIR>          ..
06.04.2013  00:25    <DIR>          Pre-built.2
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 Verzeichnis von D:\Christian\Documents\Visual Studio 2010\Projects\pthreads\Pre-built.2

06.04.2013  00:25    <DIR>          .
06.04.2013  00:25    <DIR>          ..
27.05.2012  15:18            14.328 ANNOUNCE
27.05.2012  15:18             6.498 BUGS
27.05.2012  15:18           200.896 ChangeLog
27.05.2012  15:18             5.624 CONTRIBUTORS
27.05.2012  15:18             5.939 COPYING
27.05.2012  15:18            26.934 COPYING.LIB
06.04.2013  00:25    <DIR>          dll
27.05.2012  15:18            18.075 FAQ
06.04.2013  00:25    <DIR>          include
06.04.2013  00:25    <DIR>          lib
27.05.2012  15:18                99 MAINTAINERS
27.05.2012  15:18            43.400 NEWS
27.05.2012  15:18               142 PROGRESS
27.05.2012  15:18            22.891 README
27.05.2012  15:18             2.595 README.Borland
27.05.2012  15:18            89.774 README.CV
27.05.2012  15:18            31.865 README.NONPORTABLE
27.05.2012  15:18             2.349 README.Watcom
27.05.2012  15:18               220 README.WinCE
27.05.2012  15:18             8.046 WinCE-PORT
              17 Datei(en),        479.675 Bytes

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06.04.2013  00:25    <DIR>          ..
06.04.2013  00:25    <DIR>          x64
06.04.2013  00:25    <DIR>          x86
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06.04.2013  00:25    <DIR>          .
06.04.2013  00:25    <DIR>          ..
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bradmaxwell
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July 05, 2013, 02:46:52 AM
 #909

Is there any possible to compile and change anything about my problem? That is:
I can't pass the barrier of 10hk/s in windows 7 32 and 64 bits. Note i can reach 92kh/s in windows xp 32. I've done everything, change drives, change cuda tool kit, open like adm, try to install win xp 32 driver in windows 7 all without sucess.
I read what you wrote in one comment line named salva_kernel.cu :

Code:
// if not otherwise specified or required, turn single memory allocations off as they reduce
    // the amount of memory that we can allocate on Windows Vista, 7 and 8 (WDDM driver model issue)
    if (device_singlememory[thr_id] == -1) device_singlememory[thr_id] = 0;

What that suppose to mean? I can allocate more memory if i compile it put -1 or 1 in that " device_singlememory[thr_id] = 0 " line? If not there is another way to use cudaminer in windows 7? Im tired to use windows xp :/ Ty! *.*
kenshin23
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July 05, 2013, 03:20:39 AM
 #910

Is there any possible to compile and change anything about my problem? That is:
I can't pass the barrier of 10hk/s in windows 7 32 and 64 bits. Note i can reach 92kh/s in windows xp 32. I've done everything, change drives, change cuda tool kit, open like adm, try to install win xp 32 driver in windows 7 all without sucess.
I read what you wrote in one comment line named salva_kernel.cu :

Code:
// if not otherwise specified or required, turn single memory allocations off as they reduce
    // the amount of memory that we can allocate on Windows Vista, 7 and 8 (WDDM driver model issue)
    if (device_singlememory[thr_id] == -1) device_singlememory[thr_id] = 0;

What that suppose to mean? I can allocate more memory if i compile it put -1 or 1 in that " device_singlememory[thr_id] = 0 " line? If not there is another way to use cudaminer in windows 7? Im tired to use windows xp :/ Ty! *.*
If you don't mind me asking, why aren't you using the precompiled binaries for windows? I'm using W7 Ultimate 64 bits and it's working just fine, mining on it right now with a GTX 670 @ 162 kH/s.

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cbuchner1
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July 05, 2013, 11:04:50 AM
 #911

Windows XP uses the old driver model (most driver code running in kernel mode)
Windows Vista, 7, 8 use the WDDM driver model (most driver code running in user mode).

WDDM has some bizarre restrictions where you cannot allocate single memory block on the device exceeding a certain size. That size is MIN ( ( System Memory Size in MB - 512 MB ) / 2, PAGING_BUFFER_SEGMENT_SIZE )

source:
http://stackoverflow.com/questions/13851287/cuda-and-cudamalloc-allocation-large-block-of-memory-fails

This is why I added the single memory allocation switch, so I can break the allocation into many small chunks. However this is incompatible with the texture cache feature, so texture cache implies using single memory allocation.

The -1 means "use default behavior", whereas values of 0 or 1 allow overruling the behavior from command line.

And I really don't want to explain my source code in detail. The code is an all you can eat buffet, and there's no garçon to explain the ingredients.

The WDDM driver can behave strangely if too much memory is allocated on the GPUs. I've experienced everything from massive slowdowns to driver crashes. That included hash rates in the 10's on otherwise very fast GPUs.

Christian
bradmaxwell
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July 05, 2013, 04:15:01 PM
 #912

So final result is that Gtx 280 wont work good in windows 7 all version isnt? Why other guys with gtx 260 can use it? This is what i cant understand Tongue
Is there any possible to compile and change anything about my problem? That is:
I can't pass the barrier of 10hk/s in windows 7 32 and 64 bits. Note i can reach 92kh/s in windows xp 32. I've done everything, change drives, change cuda tool kit, open like adm, try to install win xp 32 driver in windows 7 all without sucess.
I read what you wrote in one comment line named salva_kernel.cu :

Code:
// if not otherwise specified or required, turn single memory allocations off as they reduce
    // the amount of memory that we can allocate on Windows Vista, 7 and 8 (WDDM driver model issue)
    if (device_singlememory[thr_id] == -1) device_singlememory[thr_id] = 0;

What that suppose to mean? I can allocate more memory if i compile it put -1 or 1 in that " device_singlememory[thr_id] = 0 " line? If not there is another way to use cudaminer in windows 7? Im tired to use windows xp :/ Ty! *.*
If you don't mind me asking, why aren't you using the precompiled binaries for windows? I'm using W7 Ultimate 64 bits and it's working just fine, mining on it right now with a GTX 670 @ 162 kH/s.
I tried use precompiled binaries but no good results too :/
cbuchner1
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July 08, 2013, 09:57:50 AM
 #913

I've done another fresh fork of the cpuminer project (this time cleanly using github, also creating a link to the "upstream" repo that I forked from). It compiles on Visual C++ 2010 and I tested the stratum support against coinotron (originally there was a problem with coinotron's server code, which is now fixed).

From then on it should be easy to stay in sync with additional features and fixes that may be added to pooler's cpuminer later on.

Now I just have to add back the CUDA support, but patience please. When you have a 18 month old son, you don't get to program all that often Wink   In April/May wife and son were out of country, which explains why I had some much spare time to hack on the original cudaMiner releases.

I also have a compute 3.5 card at my disposal, so I can try optimizing the Titan kernels further. Those 256 registers per thread really want to be used Wink
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July 08, 2013, 03:41:39 PM
 #914


Now I just have to add back the CUDA support, but patience please. When you have a 18 month old son, you don't get to program all that often Wink   In April/May wife and son were out of country, which explains why I had some much spare time to hack on the original cudaMiner releases.


Appreciated!

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July 09, 2013, 01:14:29 PM
 #915

Nice. Just built a new PC with a Geforce GTX 660 onboard and getting about 110kh/s with the current release, so will be interesting to see if my stales drop with stratum support.

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webr3
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July 09, 2013, 09:09:04 PM
 #916

Has anybody ran cudaminer on a K20 yet, if so what was the performance like?
GoldBit89
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July 10, 2013, 12:36:43 AM
 #917

Is there a way to have log and share files saved to the computer much like cgminer does? If so what is the command i need to add to batch file?


Thanks.

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kenshin23
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July 10, 2013, 02:37:30 AM
 #918

I'm currently experiencing something weird with cudaminer. Khash/s jumps a lot, from being stable at 165 Kh/s to sometimes hashing at 160, 155, 80, 140, and so. Launch config at 70x2 then autoconfig. Still weird.

I hope Nvidia drivers didn't fry my card (yes, I had 320.18 before I read that those could kill it). Any way to tell if there's a problem that anyone knows about?

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Eli0t
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July 10, 2013, 03:37:11 AM
 #919

i found that both 32x4 and 64x2 worked the best but 32x4 gave a more stable hashrate

for your config try 35x4

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cbuchner1
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July 10, 2013, 09:49:12 AM
 #920

I'm currently experiencing something weird with cudaminer. Khash/s jumps a lot, from being stable at 165 Kh/s to sometimes hashing at 160, 155, 80, 140, and so. Launch config at 70x2 then autoconfig. Still weird.

have you tried running with -i 0 ?

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