Newer X64 build needed

[BfoX]

try to use SVN 1005 and got error:

Msieve v. 1.53 (SVN 1005)
Fri Dec 06 00:25:41 2019
random seeds: 35e6e7a0 d0500745
factoring 2881039827457895971881627053137530734638790825166127496066674320241571
446494762386620442953820735453 (100 digits)
searching for 15-digit factors
commencing number field sieve (100-digit input)
commencing number field sieve polynomial selection
polynomial degree: 4
max stage 1 norm: 1.58e+017
max stage 2 norm: 3.44e+015
min E-value: 8.85e-009
poly select deadline: 1317
time limit set to 0.37 CPU-hours
expecting poly E from 1.43e-008 to > 1.64e-008
searching leading coefficients from 1 to 4000
using GPU 0 (GeForce GTX 1050 Ti)
selected card has CUDA arch 6.1
deadline: 5 CPU-seconds per coefficient
error (line 1116): CUDA_ERROR_FILE_NOT_FOUND
Msieve Error: return value 4294967295. Is CUDA enabled? Terminating...

[jasonp]

What card and CUDA version are you using? Do you run the binary from command line, from the directory above the one with the PTX files?

[BfoX]

using GPU 0 (GeForce GTX 1050 Ti) selected card has CUDA arch 6.1
win 8.1 x64
all ptx-file in same directory
run from python script

[RichD]

Originally Posted by BfoX

using GPU 0 (GeForce GTX 1050 Ti) selected card has CUDA arch 6.1
win 8.1 x64
all ptx-file in same directory
run from python script

It sounds like the stage1_core_sm60.ptx file is missing. (or sm61 ?)

You will have to add that to the "make" file and rebuild or find another binary which includes this later ptx file.

[BfoX]

Originally Posted by RichD

It sounds like the stage1_core_sm60.ptx file is missing. (or sm61 ?).

the card support a low version of the ptx-files.

[RichD]

Originally Posted by BfoX

the card support a low version of the ptx-files.

I don't know how to tell msieve to use a lower version ptx-file.

Perhaps this thread is helpful or post your question/request there.

[bsquared]

Originally Posted by BfoX

try to use SVN 1005 and got error:

Msieve v. 1.53 (SVN 1005)
Fri Dec 06 00:25:41 2019
random seeds: 35e6e7a0 d0500745
factoring 2881039827457895971881627053137530734638790825166127496066674320241571
446494762386620442953820735453 (100 digits)
searching for 15-digit factors
commencing number field sieve (100-digit input)
commencing number field sieve polynomial selection
polynomial degree: 4
max stage 1 norm: 1.58e+017
max stage 2 norm: 3.44e+015
min E-value: 8.85e-009
poly select deadline: 1317
time limit set to 0.37 CPU-hours
expecting poly E from 1.43e-008 to > 1.64e-008
searching leading coefficients from 1 to 4000
using GPU 0 (GeForce GTX 1050 Ti)
selected card has CUDA arch 6.1
deadline: 5 CPU-seconds per coefficient
error (line 1116): CUDA_ERROR_FILE_NOT_FOUND
Msieve Error: return value 4294967295. Is CUDA enabled? Terminating...

I had the same problem with a arch 7.5 card. In msieve's source file stage1_sieve_gpu.c file, starting at line 1106, is this code:

if (d->gpu_info->compute_version_major == 2) {
		CUDA_TRY(cuModuleLoad(&t->gpu_module, "stage1_core_sm20.ptx"))
	}
	else if (d->gpu_info->compute_version_major == 3) {
		if (d->gpu_info->compute_version_minor < 5)
			CUDA_TRY(cuModuleLoad(&t->gpu_module, "stage1_core_sm30.ptx"))
		else
			CUDA_TRY(cuModuleLoad(&t->gpu_module, "stage1_core_sm35.ptx"))
	}
	else if (d->gpu_info->compute_version_major >= 5) {
		CUDA_TRY(cuModuleLoad(&t->gpu_module, "stage1_core_sm50.ptx"))
	}
	else 
	{
	    printf("sorry, Nvidia doesn't want to support your card\n");
		exit(-1);
	}

Which for anything at or above compute capability 5 attempts to load stage1_core_sm50.ptx.

I tried the following, which gets past the error message but appears to hang once the card gets going:

1) edit gpu_sm.props in the build.cuda.vc15 directory to update the CC_major and CC_minor fields (mine were 7 and 5)
2) in visual studio, edit the stage1_core_sm property pages by adding compute_75,sm_75 to the Code Generation item of the CUDA C/C++ section (or in your case, I guess compute_61,sm_61)
3) rebuild

This will make a stage1_core_sm61.ptx file in the bin/ directory alongside the msieve.exe executable. You'll then have to rename to stage1_core_sm50.ptx for it to be loaded by the code above.

But, like I said, some step or another is still missing because the code now just hangs after starting the search.

[Jarod]

Originally Posted by VictordeHolland

Windows 64bit builds using MSYS2/mingw64 of msieve SVN1028

gcc version 8.2.0 (Rev3, Built by MSYS2 project)

Built on a i7 3770 (IvyBridge)

make all WIN=1 WIN64=1 ECM=1 CUDA=0 NO_ZLIB=0 VBITS=64/128/256

I think I've included all the necessary .dlls, but do reply if you miss any. Very little testing done, but enjoy.

P.S. I've included zlib, since I like to keep the relations compressed (.gz) and don't want to unzip a few GBs of relations when I post-process NFS@home jobs.

Is SVN 1028 still the latest version of M Sleve for Windows 10 64-bit?
Thanks
Jarod