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Old 2016-06-28, 14:26   #1
Luis
 
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Oct 2014
Bari, Italy

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Default Trial Factoring by GPU my LL assignment

Hello, I did a little search, but I didn't find any specific thing.

I have Linux, a GTX 750Ti, Cuda 8.0 and...

a TF77 that I stopped almost 1 year ago because I discovered the GPU efficiency, but I didn't have got any GPU too.

This TF77 belongs to my 333M exponent that I'll never abandon, maybe it is an hidden world record.

Now I want to complete its TFs and to run the LL-test via CPU multithreading.

So... what I have to do to TFing by GPU?

Last fiddled with by Luis on 2016-06-28 at 14:30
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Old 2016-06-28, 15:05   #2
Gordon
 
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Nov 2008

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Quote:
Originally Posted by Luis View Post
Hello, I did a little search, but I didn't find any specific thing.

I have Linux, a GTX 750Ti, Cuda 8.0 and...

a TF77 that I stopped almost 1 year ago because I discovered the GPU efficiency, but I didn't have got any GPU too.

This TF77 belongs to my 333M exponent that I'll never abandon, maybe it is an hidden world record.

Now I want to complete its TFs and to run the LL-test via CPU multithreading.

So... what I have to do to TFing by GPU?
Start by going here then if or when you get stuck come back here, tell us how far you got and we'll help you along...
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Old 2016-06-28, 17:14   #3
Luis
 
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Oct 2014
Bari, Italy

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I saw that thread. I have some questions.

1) I've downloaded mfaktc-0.21.linux64.cuda65.tar.gz. It should be for Linux 64bit, so why are there .exe files? Should I compile the source code of mfaktc-0.21.tar.gz instead? For example mprime software is already compiled for Linux.

2) Does cuda65 mean that I should downgrade my cuda (version 8.0) libraries?

Last fiddled with by Luis on 2016-06-28 at 17:15
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Old 2016-06-28, 18:41   #4
TheJudger
 
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"Oliver"
Mar 2005
Germany

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Hi Luis,

Quote:
Originally Posted by Luis View Post
I saw that thread. I have some questions.

1) I've downloaded mfaktc-0.21.linux64.cuda65.tar.gz. It should be for Linux 64bit, so why are there .exe files? Should I compile the source code of mfaktc-0.21.tar.gz instead? For example mprime software is already compiled for Linux.

2) Does cuda65 mean that I should downgrade my cuda (version 8.0) libraries?
1) what's wrong with the name of the binaries? The *.exe in that tarball are Linux executables.

2) no, you need a driver which supports CUDA 6.5 (or higher). No CUDA toolkit needed (and appropriate CUDA runtime libraries are included in tarball, might need to fiddle around with e.g. LD_LIBRARY_PATH).

Oliver
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