wombatman - are you using Linux or Windows? I was running into problems as well, found Windows to be far more stable.

frmky - C229_125_81 is currently in LA and should finish in a week. I won't have any resources free until then. But I will be able to tackle C168_127_110 at that time, if no one else wants it before then.

I wish I could edit the previous post, but please disregard it. I was able to get a 64-bit MSieve compiled that has made it to the linear algebra step, so I should (hopefully) be able to complete the post-processing of W_2_736.

Edit: swellman, I'm running on Windows 7 64-bit. The issue appears to be related to gcc's need for 32-bit dlls. So even when I compile a 64-bit program (which will identify as 64-bit with "file") in MinGW-64, it tries to get a 32-bit dll and errors out if too much RAM is used. By contrast, this 64-bit Visual Studio compiled MSieve (SVN 946) happily used ~2.7GB of RAM with no issue.

Edit: [CODE]linear algebra at 0.0%, ETA 17h14m
228679 dimensions (0.0%, ETA 17h14m)[/CODE]

Great news! Glad you got msieve running and successfully digesting the relations file.

I had an issue in Linux with the data file for C229_125_81. Twice I got it downloaded without error but then it refused to extract. Rebooting into Windows and repeating resulted in success. Can't explain it.

That is strange indeed. Maybe one of those issues where the escape character matters? Who knows!

Frmky -- I'd be happy to take another number in a day or two when I finish W_2_736. I look on the NFS@Home site to see which were queued for postprocessing and didn't see any. What are the choices?

I've updated it.

I'd like to take GC_3_465 and W_2_737, please!

I would like to give post-processing a go, if pre-compiled binaries are available for W7 x64 and some basic instructions? What are the requirements? I've got a 3770k with 8 GB.

Victor,

I have a binary linked here: [url]http://www.mersenneforum.org/showpost.php?p=357227&postcount=10[/url]

You will also need to download pthreadVC2.dll (if you can't find it online, let me know and I'll send it to you).

As for instructions, this is a good place to start: [url]http://gilchrist.ca/jeff/factoring/nfs_beginners_guide.html[/url]

Thanks for the comprehensive guide!
I've installed the software and binaries:
- Visual C++ 2013/2012
- Python and Notepad++ (for the factmsieve.py script)
- GGNFS SVN413 and MSIEVE 1.52 SVN 939 (your msieve gives an error at the polysearch?)

I'm now trying the example of the guide (the 100 digit composite).
Polyselection is done, it's now running the siever on the 4 cores (8 threads). So far it is at 58% (2.3M relations out of estimated minimum 4.1M relations). I expect it to start Linear Algebra in 1 hour or so, lets wait and see how things go.

If the factmsieve script has CUDA=TRUE in it, my msieve will definitely give an error since it was compiled without CUDA added. That would be one thing to check.