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Author Topic: [ANN][GAP] Gapcoin - Prime Gap Search - New Math Algo - CPU / GPU - Zero Premine  (Read 241206 times)
shifty252
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November 07, 2014, 09:06:16 PM
 #601

hi guys, can you please post a sample gapcoin.conf please?

also, has anyone with a radeon 270x tried the gpu miner? if yes, care to share your results?
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j0nn9
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November 07, 2014, 09:12:20 PM
 #602

hi guys, can you please post a sample gapcoin.conf please?

also, has anyone with a radeon 270x tried the gpu miner? if yes, care to share your results?


Code:
rpcuser=user
rpcpassword=password
server=1
addnode=212.227.143.155
addnode=104.131.69.82
addnode=95.215.44.9
addnode=155.254.36.179
addnode=199.127.226.192

Gapcoin - The largest, decentralized prime gap search
LJKH897
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November 07, 2014, 09:14:36 PM
 #603

Hi a line to start 2kart you can put
PorcoRosso
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November 07, 2014, 09:21:41 PM
 #604

CPU load 100% in GPU miner =(
shifty252
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November 07, 2014, 09:27:09 PM
 #605

hi guys, can you please post a sample gapcoin.conf please?

also, has anyone with a radeon 270x tried the gpu miner? if yes, care to share your results?


Code:
rpcuser=user
rpcpassword=password
server=1
addnode=212.227.143.155
addnode=104.131.69.82
addnode=95.215.44.9
addnode=155.254.36.179
addnode=199.127.226.192

thanks!

i get the following when running gpu miner with stratum(both 32&64):
Code:
E:\gap\windows\64\gpu>gapminer-gpu.exe -o mine3.gap.nonce-pool.com -p 3385 -u user.1 -x password -t 1 --stratum --use-gpu
[2014-11-07 23:24:48] Found platform[0] name = AMD Accelerated Parallel Processi
ng
[2014-11-07 23:24:48] Found 1 device(s)
[2014-11-07 23:24:48] Loaded kernel binary size = 872620 bytes
[2014-11-07 23:24:56] Using GPU 0 [Pitcairn]: which has 20 CUs
[2014-11-07 23:24:56] Requesting work failedsend: The file handle supplied is no
t valid
[2014-11-07 23:24:56] Error receiving message form server: read_until: The file
handle supplied is not valid

getwork mines ok at ~141000 pps
go6ooo1212
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November 07, 2014, 09:39:53 PM
 #606

Cant actually involve more than 1 card a rig , even with this option :
--gpu-dev 0,1,2,3,4
alibabacool
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November 07, 2014, 09:42:26 PM
 #607

CPU load 100% in GPU miner =(
Yes, it needs powerful CPU for multiple gpus.
alibabacool
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November 07, 2014, 09:43:58 PM
 #608

Cant actually involve more than 1 card a rig , even with this option :
--gpu-dev 0,1,2,3,4
One miner instance for each gpu
Supercomputing
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November 07, 2014, 09:44:20 PM
 #609

@j0nn9

One less item on my to-do list for this weekend now that you've released a GPU based miner.  Grin

Sorry if I missed something, but how do you configure the miner to run on testnet? I received too many stale submissions followed by the miner hanging. Please see the log file below:

CPU: AMD FX-8350
GPU: AMD R9 280X

./gapminer -o 10.0.0.2 -p 9876 -u u_rpcuser_u -x p_rpcpass_p -t 8 -f 23 -i 800000 -s 8388608 -g -d 0
[2014-11-07 15:25:05] Found platform[0] name = NVIDIA CUDA
[2014-11-07 15:25:05] Found platform[1] name = AMD Accelerated Parallel Processing
[2014-11-07 15:25:05] Found 1 device(s)
[2014-11-07 15:25:05] Compiling ...
[2014-11-07 15:25:05] Source: 205055 bytes
[2014-11-07 15:25:08] Compiled kernel binary size = 903840 bytes
[2014-11-07 15:25:08] Loaded kernel binary size = 903840 bytes
[2014-11-07 15:25:08] Using GPU 0 [Tahiti]: which has 32 CUs
[2014-11-07 15:25:09] Got new target: 1.0000000 @ 1.0000000
[2014-11-07 15:25:15] Found Share: 2.4725781  =>  accepted
[2014-11-07 15:25:15] Found Share: 1.3788212  =>  stale!
[2014-11-07 15:25:15] Found Share: 1.4127911  =>  stale!
[2014-11-07 15:25:15] Found Share: 1.2721381  =>  stale!
[2014-11-07 15:25:16] Found Share: 1.4317729  =>  stale!
[2014-11-07 15:25:16] Found Share: 3.6779116  =>  stale!
[2014-11-07 15:25:16] Found Share: 1.4460171  =>  stale!
[2014-11-07 15:25:17] Found Share: 1.2714187  =>  stale!
[2014-11-07 15:25:17] Found Share: 1.4480290  =>  stale!
[2014-11-07 15:25:17] Found Share: 2.7009248  =>  stale!
[2014-11-07 15:25:17] Found Share: 2.0624349  =>  stale!
[2014-11-07 15:25:18] Found Share: 7.0916937  =>  stale!
[2014-11-07 15:25:18] Found Share: 2.2394908  =>  stale!
[2014-11-07 15:25:18] Found Share: 1.8181628  =>  stale!
[2014-11-07 15:25:19] Found Share: 2.4725407  =>  stale!
[2014-11-07 15:25:19] Found Share: 1.2781374  =>  stale!
[2014-11-07 15:25:19] Found Share: 1.5778022  =>  stale!
[2014-11-07 15:25:19] Got new target: 1.0000000 @ 1.0000000
[2014-11-07 15:26:13] shutdown..
[2014-11-07 15:26:19] shutdown..
[2014-11-07 15:26:20] I'm on it, just wait! (press again to kill)

Electrical Engineering & Computer Science
http://www.eecs.mit.edu/
go6ooo1212
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November 07, 2014, 09:52:33 PM
 #610

Cant actually involve more than 1 card a rig , even with this option :
--gpu-dev 0,1,2,3,4
One miner instance for each gpu
Yes Ive tried so ,and suppose to work but the speeds are different for each card ...
alibabacool
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November 07, 2014, 09:54:02 PM
 #611

Cant actually involve more than 1 card a rig , even with this option :
--gpu-dev 0,1,2,3,4
One miner instance for each gpu
Yes Ive tried so ,and suppose to work but the speeds are different for each card ...
Which cpu do you have on a farm?
ZXSpectrum
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November 07, 2014, 09:54:28 PM
 #612

Hi there,

II know I said next week, but i managed to build some experimental gpu miner binaries Grin.
I created a new release which includes the stratum changes from nonce-pool,
and some bug fixes regarding the device selection.

But still, the binaries and source code are very experimental!

Works, pointed at the nonce-pool for now - thanks. I am getting some stale shares however - how can I troubleshoot that?

Wish my sig was a little bit taller.
bsunau7
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November 07, 2014, 09:56:24 PM
 #613

@j0nn9

One less item on my to-do list for this weekend now that you've released a GPU based miner.  Grin

Sorry if I missed something, but how do you configure the miner to run on testnet? I received too many stale submissions followed by the miner hanging. Please see the log file below:

CPU: AMD FX-8350
GPU: AMD R9 280X

./gapminer -o 10.0.0.2 -p 9876 -u u_rpcuser_u -x p_rpcpass_p -t 8 -f 23 -i 800000 -s 8388608 -g -d 0
[2014-11-07 15:25:05] Found platform[0] name = NVIDIA CUDA
[2014-11-07 15:25:05] Found platform[1] name = AMD Accelerated Parallel Processing
[2014-11-07 15:25:05] Found 1 device(s)
[2014-11-07 15:25:05] Compiling ...
[2014-11-07 15:25:05] Source: 205055 bytes
[2014-11-07 15:25:08] Compiled kernel binary size = 903840 bytes
[2014-11-07 15:25:08] Loaded kernel binary size = 903840 bytes
[2014-11-07 15:25:08] Using GPU 0 [Tahiti]: which has 32 CUs
[2014-11-07 15:25:09] Got new target: 1.0000000 @ 1.0000000
[2014-11-07 15:25:15] Found Share: 2.4725781  =>  accepted
[2014-11-07 15:25:15] Found Share: 1.3788212  =>  stale!
[2014-11-07 15:25:15] Found Share: 1.4127911  =>  stale!
[2014-11-07 15:25:15] Found Share: 1.2721381  =>  stale!
[2014-11-07 15:25:16] Found Share: 1.4317729  =>  stale!
[2014-11-07 15:25:16] Found Share: 3.6779116  =>  stale!
[2014-11-07 15:25:16] Found Share: 1.4460171  =>  stale!
[2014-11-07 15:25:17] Found Share: 1.2714187  =>  stale!
[2014-11-07 15:25:17] Found Share: 1.4480290  =>  stale!
[2014-11-07 15:25:17] Found Share: 2.7009248  =>  stale!
[2014-11-07 15:25:17] Found Share: 2.0624349  =>  stale!
[2014-11-07 15:25:18] Found Share: 7.0916937  =>  stale!
[2014-11-07 15:25:18] Found Share: 2.2394908  =>  stale!
[2014-11-07 15:25:18] Found Share: 1.8181628  =>  stale!
[2014-11-07 15:25:19] Found Share: 2.4725407  =>  stale!
[2014-11-07 15:25:19] Found Share: 1.2781374  =>  stale!
[2014-11-07 15:25:19] Found Share: 1.5778022  =>  stale!
[2014-11-07 15:25:19] Got new target: 1.0000000 @ 1.0000000
[2014-11-07 15:26:13] shutdown..
[2014-11-07 15:26:19] shutdown..
[2014-11-07 15:26:20] I'm on it, just wait! (press again to kill)


This seems to be normal for an optimized miner.

The miner does not stop mining the sieve until the original one is verified by a slow  mpz_nextprime() call.  When your miner is significantly faster than the PoW function you tend to find lots of shares before the PoW can stop the sieve from mining.

Regards,

--
bsunau7
go6ooo1212
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November 07, 2014, 10:03:39 PM
 #614

Cant actually involve more than 1 card a rig , even with this option :
--gpu-dev 0,1,2,3,4
One miner instance for each gpu
Yes Ive tried so ,and suppose to work but the speeds are different for each card ...
Which cpu do you have on a farm?
Im with celeron, sadly...
ZXSpectrum
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November 07, 2014, 10:10:42 PM
 #615

Hi there,

II know I said next week, but i managed to build some experimental gpu miner binaries Grin.
I created a new release which includes the stratum changes from nonce-pool,
and some bug fixes regarding the device selection.

But still, the binaries and source code are very experimental!

Works, pointed at the nonce-pool for now - thanks. I am getting some stale shares however - how can I troubleshoot that?


Sorry for another post, card 0 is a 280x and only using around 80-90% of gpu...   card 1 is a 290 and sits at 100% all the time but sometimes goes to 0 then back to 100, I guess this is a code thing... is there anything I Can provide to help improve?

Wish my sig was a little bit taller.
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November 07, 2014, 10:36:05 PM
 #616

CPU load 100% in GPU miner =(
yep  Angry
Supercomputing
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November 07, 2014, 10:44:48 PM
 #617


This seems to be normal for an optimized miner.

The miner does not stop mining the sieve until the original one is verified by a slow  mpz_nextprime() call.  When your miner is significantly faster than the PoW function you tend to find lots of shares before the PoW can stop the sieve from mining.

Regards,

--
bsunau7

@bsunau7

Thanks for the info and I will implement a small sieve for validation and use a single exponentiation test at each end point; it should be at least 100x faster and less than 1/(2128) probability of it being a larger gap.

Electrical Engineering & Computer Science
http://www.eecs.mit.edu/
bsunau7
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November 07, 2014, 11:06:24 PM
 #618


@bsunau7

Thanks for the info and I will implement a small sieve for validation and use a single exponentiation test at each end point; it should be at least 100x faster and less than 1/(2128) probability of it being a larger gap.

There was talk on GMP mailing lists about speeding up gmp_nextprime in a very similar manner, sieve the start/end gap before running expensive MR tests.    As the gap has been pre-sieved you might just be able to MR test the non-composite in the mining sieve and get the same result.

I personally didn't bother with the PoW validation code as for larger gaps it just isn't called enough to matter.

Also you can tweak the pprocessor->process() to terminate the sieve early which will cure the stales and get you to the next "block" a few seconds faster at the risk of having a slightly wrong difficulty (in effect a non issue).

PS.  Just pushed testnet to >8 might slow down your stale shares some (I am only getting only 75-90% stale at this difficulty).

Regards,

--
bsunau7
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November 07, 2014, 11:06:41 PM
 #619

Dev Is it possible to reduce the load on the processor Angry
drumingspz
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November 08, 2014, 12:00:08 AM
 #620

hi guys, can you please post a sample gapcoin.conf please?

also, has anyone with a radeon 270x tried the gpu miner? if yes, care to share your results?


Code:
rpcuser=user
rpcpassword=password
server=1
addnode=212.227.143.155
addnode=104.131.69.82
addnode=95.215.44.9
addnode=155.254.36.179
addnode=199.127.226.192

thanks!

i get the following when running gpu miner with stratum(both 32&64):
Code:
E:\gap\windows\64\gpu>gapminer-gpu.exe -o mine3.gap.nonce-pool.com -p 3385 -u user.1 -x password -t 1 --stratum --use-gpu
[2014-11-07 23:24:48] Found platform[0] name = AMD Accelerated Parallel Processi
ng
[2014-11-07 23:24:48] Found 1 device(s)
[2014-11-07 23:24:48] Loaded kernel binary size = 872620 bytes
[2014-11-07 23:24:56] Using GPU 0 [Pitcairn]: which has 20 CUs
[2014-11-07 23:24:56] Requesting work failedsend: The file handle supplied is no
t valid
[2014-11-07 23:24:56] Error receiving message form server: read_until: The file
handle supplied is not valid

getwork mines ok at ~141000 pps

I see a similar issues - Win7x64 64 bit miner (stratum connection)
Code:
D:\Downloads\Mining\GAPCoin\GPU Miner\windows\64\gpu>gapminer-gpu -o mine3.gap.n
once-pool.com -p 3385 -u username -x password -t 1 -g --stratum
[2014-11-07 15:53:02] Found platform[0] name = AMD Accelerated Parallel Processing
[2014-11-07 15:53:02] Found 1 device(s)
[2014-11-07 15:53:02] Loaded kernel binary size = 872620 bytes
[2014-11-07 15:53:02] Using GPU 0 [Tahiti]: which has 32 CUs
[2014-11-07 15:53:02] Requesting work failedsend: The file handle supplied is not valid
[2014-11-07 15:53:02] Error receiving message form server: read_until: The file handle supplied is not valid

Same system - longpoll connection.  Miner looks like its beginning to work, then dies...
Code:
D:\Downloads\Mining\GAPCoin\GPU Miner\windows\64\gpu>gapminer-gpu -o mine3.gap.n
once-pool.com -p 4200 -u username -x password -t 1 -g
[2014-11-07 15:54:41] Found platform[0] name = AMD Accelerated Parallel Processing
[2014-11-07 15:54:41] Found 1 device(s)
[2014-11-07 15:54:41] Loaded kernel binary size = 872620 bytes
[2014-11-07 15:54:41] Using GPU 0 [Tahiti]: which has 32 CUs
[2014-11-07 15:54:42] Server supports longpoll
[2014-11-07 15:54:42] Got new target: 13.0000000 @ 22.4626094

I've tried increasing my CPU threads, as I only have 1 GPU in this machine, but that hasn't helped.  The system has 12GB of RAM, so I don't think that's the issue either.




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