Build Instructions for Ubuntu 14.04

[VBCurtis]

Originally Posted by henryzz

If you have 5.5 installed then you should have the correct dlls(or Linux equivalent) as long as you have set up the environment variable to point to it.
I am not sure what the situation is if you have two versions installed on Linux.
Have you been able to find a binary? It should complain if you run it asking for dlls.

I have no binary, and have not gotten 5.5 installed (I installed the repo package, but didn't realize it failed to install CUDA). I did manage to fully uninstall 7.5, which is a start. I learned the repo for 5.5 doesn't install on 14.04, and the .run rejects the compiler (gcc 4.8.4) as incorrect (too new?). I am slightly annoyed at Nvidia, but not sharp enough with compilers and installers to know what to do next. I think this maze of what supports what is a bit of why xyzzy sold me the card!

Since I do only use this machine for NFS/ECM, I guess I could install 12.04 fresh, which is specifically supported by CUDA 5.5 installer...? msieve poly search is my first interest for this card, with llrCUDA second and some mersenne factoring or primegrid sieving a minor interest.

[VBCurtis]

I finally got this resolved, and GPU poly select is running on formerly-xyzzy's 750ti under Ubuntu 14.04.

Thanks in particular to RichD, who worked extensively with me via PM to troubleshoot, even built me a binary in case my own inexperience with compilation was the problem. I am running his binary presently.

[efiGeek]

Originally Posted by D. B. Staple

For reference, here are build instructions. Starting from a fresh install of Ubuntu Server 14.04.1 LTS 64-bit, the following will get you up and running with GGNFS (GitHub commit 3490572ca8, Apr. 23, 2011), Msieve (SF SVN revision 975, Sep. 30, 2014), and factmsieve.py (version 0.77, MersenneForum.org, Aug 27, 2013).

Thank you EdH for your help working this out.

#!/bin/bash

# Install some dependencies
sudo apt-get install g++ subversion m4 wget zlib1g-dev make libgmp-dev gmp-ecm libecm-dev unzip

# Download & compile GGNFS
wget https://github.com/radii/ggnfs/archive/master.zip
unzip master.zip
mv ggnfs-master ggnfs
pushd ggnfs
make x86_64
popd

# Download & compile Msieve
svn co https://svn.code.sf.net/p/msieve/code/trunk msieve
pushd msieve
make all NO_ZLIB=1 ECM=1
popd

# Download & configure factmsieve.py
# factmsieve.77.zip comes from http://www.mersenneforum.org/showthread.php?t=12981&page=65
wget "http://www.mersenneforum.org/attachment.php?attachmentid=10171&d=1377631047" -O factmsieve.77.zip
unzip -o factmsieve.77.zip
chmod +x factmsieve.py
cp factmsieve.py factmsieve_original.py
sed -i '1i #!/usr/bin/env python' factmsieve.py
sed -i "s/GGNFS_REL_PATH = '..\/bin\/x64\/Release\/'/GGNFS_REL_PATH = '.\/ggnfs\/bin\/'/g" factmsieve.py
sed -i "s/MSIEVE_REL_PATH = '..\/..\/msieve\/bin\/x64\/Release\/'/MSIEVE_REL_PATH = '.\/msieve\/'/g" factmsieve.py
sed -i 's/NUM_CORES = 4/NUM_CORES = 6/g' factmsieve.py
sed -i 's/USE_CUDA = True/USE_CUDA = False/g' factmsieve.py
diff factmsieve_original.py factmsieve.py

# Create example input file and run test calculation
echo "n: 2881039827457895971881627053137530734638790825166127496066674320241571446494762386620442953820735453" > example.n
time ./factmsieve.py example

This script is the single best thing someone could have made for GNFS and Msieve. Works perfect with slight changes to match my setup. THANKS!