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Old 2015-12-08, 21:30   #1
Mini-Geek
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Default Will Edgington's double Mersenne site down

Apologies if this is old news. http://www.garlic.com/~wedgingt/MMPstats.txt no longer hosts the MMP stats we all know and love. The last archive of it is from 2014. Has it been offline for long? Do we have a replacement anywhere, or is one even needed?
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Old 2015-12-10, 02:39   #2
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How about double mersenne site? I never used anything else.

Last fiddled with by LaurV on 2015-12-10 at 02:41
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Old 2015-12-10, 14:45   #3
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Quote:
Originally Posted by LaurV View Post
How about double mersenne site? I never used anything else.
Ah, that's good. I knew about that site, but didn't realize this info was there anywhere.

Last fiddled with by Mini-Geek on 2015-12-10 at 14:46
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Old 2015-12-11, 01:50   #4
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Quote:
Originally Posted by LaurV View Post
How about double mersenne site? I never used anything else.
I downloaded the win64 zip file, it's missing cudart64_42_9.dll

A quick search pointed to the Nvidia developers download section, the cuda_7.5.18_windows.exe is 962meg...anyone got a d/l location for the one dll that's missing?
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Old 2015-12-11, 04:08   #5
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https://www.google.com/search?q=cuda...9.dll+download

It would be nice to have the MD5 of the original file.

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Old 2015-12-11, 06:20   #6
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All fft and runtime libraries (cudart and cufft dlls) can be dloaded from cudalucas page and/or from mfaktc page, they are nice packed there ready to pick.

Edit: link
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Old 2015-12-11, 13:24   #7
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Quote:
Originally Posted by Xyzzy View Post
https://www.google.com/search?q=cuda...9.dll+download

It would be nice to have the MD5 of the original file.

I saw most of those, whenever you see one of those "fix your dll problems" web sites, caution is the first thing that springs to mind.
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Old 2015-12-11, 18:05   #8
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Quote:
Originally Posted by LaurV View Post
All fft and runtime libraries (cudart and cufft dlls) can be dloaded from cudalucas page and/or from mfaktc page, they are nice packed there ready to pick.

Edit: link
and none of them work with mmff as it is hardwired to only accept 4.2 run time dll's

I downloaded a 4.2 from the net, with noscript etc.

Setting worktodo to contain this line as a test

MMFactor=31,74000000000000000,74000000001000000

Running it on the gtx-970 it fails instantly.

**
mmff v0.27 (64bit built)

Compiletime options
THREADS_PER_BLOCK 256
MORE_CLASSES enabled

Runtime options
GPU Sieving enabled
GPUSievePrimes 200000
GPUSieveSize 16M bits
WARNING: Cannot read GPUSieveProcessSize from mmff.ini, using default value (8)
GPUSieveProcessSize 8K bits
WorkFile worktodo.txt
Checkpoints enabled
CheckpointDelay 300s
StopAfterFactor disabled
PrintMode full
V5UserID (none)
ComputerID (none)
WARNING, no ProgressFormat specified in mmff.ini, using default
TimeStampInResults no

CUDA version info
binary compiled for CUDA 4.20
CUDA runtime version 4.20
CUDA driver version 7.50

CUDA device info
name GeForce GTX 970
compute capability 5.2
maximum threads per block 1024
number of mutliprocessors 13 (unknown number of shader cores)
clock rate 1215MHz

got assignment: MM31, k range 74000000000000000 to 74000000001000000 (89-bit factors)
Starting trial factoring of MM31 in k range: 74000000000M to 74000000001M (89-bit factors)
k_min = 74000000000000000
k_max = 74000000001000000
Using GPU kernel "mfaktc_barrett89_M31gs"
ERROR: Class problems. Factor divisible by 2, 3, 5, 7, or 11
**

Interesting warning message,
WARNING: Cannot read GPUSieveProcessSize from mmff.ini, using default value (8)

that variable doesn't exist in the ini file....

However, try it on the gtx-660 and it works??

mmff v0.27 (64bit built)

Compiletime options
THREADS_PER_BLOCK 256
MORE_CLASSES enabled

Runtime options
GPU Sieving enabled
GPUSievePrimes 200000
GPUSieveSize 16M bits
WARNING: Cannot read GPUSieveProcessSize from mmff.ini, using default value (8)
GPUSieveProcessSize 8K bits
WorkFile worktodo.txt
Checkpoints enabled
CheckpointDelay 300s
StopAfterFactor disabled
PrintMode compact
V5UserID (none)
ComputerID (none)
WARNING, no ProgressFormat specified in mmff.ini, using default
TimeStampInResults no

CUDA version info
binary compiled for CUDA 4.20
CUDA runtime version 4.20
CUDA driver version 7.50

CUDA device info
name GeForce GTX 660
compute capability 3.0
maximum threads per block 1024
number of multiprocessors 5 (960 shader cores)
clock rate 1032MHz

got assignment: MM31, k range 74000000000000000 to 74000000001000000 (89-bit factors)
Starting trial factoring of MM31 in k range: 74000000000M to 74000000001M (89-bit factors)
k_min = 74000000000000000
k_max = 74000000001000000
Using GPU kernel "mfaktc_barrett89_M31gs"
no factor for MM31 in k range: 74000000000M to 74000000001M (89-bit factors) [mmff 0.27 mfaktc_barrett89_M31gs]
tf(): total time spent: 1.159s

ERROR: get_next_assignment(): no valid assignment found in "worktodo.txt"
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Old 2015-12-12, 15:04   #9
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Quote:
Originally Posted by LaurV View Post
How about double mersenne site? I never used anything else.
Except it's still hosting v0.27, which fails on gtx-970, should be updated instead with v0.28
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Old 2016-06-04, 15:45   #10
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Quote:
Originally Posted by Gordon View Post
Except it's still hosting v0.27, which fails on gtx-970, should be updated instead with v0.28
The download page has been updated.

Luigi
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