Python Driver for GGNFS and MSIEVE

[ThomRuley]

Now it's giving me a whole lot of readouts like this one:

-> =====================================================
-> Best score so far: 3.31e-09 (good_score=2.8e-09)
-> =====================================================
-> Searching leading coefficients from 79001 to 80000
-> pol51m0b -b example.polselyour-e7ndl1jv3j.3696 -v -v -p 4 -n 5.56e+14 -a 79 -
A 80> example.polselyour-e7ndl1jv3j.3696.log
-> pol51opt -b example.polselyour-e7ndl1jv3j.3696 -v -v -n 2.86e+13 -N 3.56e+11
-e 2.8e-09>> example.polselyour-e7ndl1jv3j.3696.log
appending example.polselyour-e7ndl1jv3j.3696.51.m to example.polsel.51.m.all
appending example.polselyour-e7ndl1jv3j.3696.cand to example.polsel.cand.all
-> =====================================================
-> Best score so far: 3.31e-09 (good_score=2.8e-09)

Is that good?

[Brian Gladman]

Yes - that's now looking for polynomials.

Brian

[Brian Gladman]

Originally Posted by miklin

I so think that it is necessary to add simply check presence of programs in the ways specified by the user. If all normally to continue that script work if there is no that to give out an error message.

It is already designed to do this when CHECK_BINARIES is set to True.

I just checked this by deleting MSIEVE in my setup and it works fine for me.

Brian

[ThomRuley]

Thanks for all your help guys, especially Miklin, Brian and andi.

[miklin]

Originally Posted by Brian Gladman

It is already designed to do this when CHECK_BINARIES is set to True.

I just checked this by deleting MSIEVE in my setup and it works fine for me.

Brian

Here that at me it turns out with removed msieve
On it also has written, it needs to be checked up.
For me it not actually is this check or it is not present. But here is how time this case has shown that check does not work.

# Set binary directory paths

GGNFS_PATH = '../../bin/'
MSIEVE_PATH = '../../bin/'

# Set the number of CPU's and threads

NUM_CPUS = 2
NUM_THREADS = NUM_CPUS
#USE_CUDA = True
USE_CUDA = False
GPU_NUM = 0

# Set global flags to control operation

CHECK_BINARIES = True
CHECK_POLY = True
CLEANUP = False
DOCLASSICAL = False
NO_DEF_NM_PARAM = False
PROMPTS = False
SAVEPAIRS = True
USE_KLEINJUNG_FRANKE_PS = False
USE_MSIEVE_POLY = True
#USE_KLEINJUNG_FRANKE_PS = True
#USE_MSIEVE_POLY = False
VERBOSE = True

# End of configuration options

homes102:/home/factorization/ggnfs/trunk/tests/test_test# ../factmsieve.py example.n 
-> ________________________________________________________________
-> | Running factmsieve.py, a Python driver for MSIEVE with GGNFS |
-> | sieving support. It is Copyright, 2010, Brian Gladman and is |
-> | a conversion of factmsieve.pl that is Copyright, 2004, Chris |
-> | Monico.         This is version 0.67, dated 10th April 2010. |
-> |______________________________________________________________|
-> This is client 1 of 1
-> Using 2 threads
-> Working with NAME = example
-> Error: Polynomial file example.poly does not exist!
-> Found n = 2881039827457895971881627053137530734638790825166127496066674320241571446494762386620442953820735453.
-> Running polynomial selection ...
-> ./msieve -s ../tests/test_test/example.dat -l ../tests/test_test/example.log -i ../tests/test_test/example.ini -nf ../tests/test_test/example.fb -v -np
Traceback (most recent call last):
  File "../factmsieve.py", line 1993, in <module>
    run_msieve_poly(fact_p)
  File "../factmsieve.py", line 925, in run_msieve_poly
    elif run_msieve('-v -np'):
  File "../factmsieve.py", line 348, in run_msieve
    ret = run_exe(MSIEVE, args + ap)
  File "../factmsieve.py", line 320, in run_exe
    p = subprocess.Popen([ex] + args.split(' '), **al)
  File "/usr/local/lib/python2.7/subprocess.py", line 683, in __init__
    errread, errwrite)
  File "/usr/local/lib/python2.7/subprocess.py", line 1198, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory
siever terminated
homes102:/home/factorization/ggnfs/trunk/tests/test_test#

[Brian Gladman]

This is a bug carried over from the original Perl script. It seems that some polynomial processing with msieve has been added before the binary checks are done.

I have revamped the binary checking in version 68 of the script that is now available at:

http://www.gladman.plushost.co.uk/ol...tmsieve.py.zip

This also includes a few other minor changes to ensure that the script exits gracefully under some obscure error conditions.

It should also work with Python 2.6, 2.7 and 3.1

Brian

[scalabis]

Originally Posted by Brian Gladman

This is a bug carried over from the original Perl script. It seems that some polynomial processing with msieve has been added before the binary checks are done.

I have revamped the binary checking in version 68 of the script that is now available at:

http://www.gladman.plushost.co.uk/ol...tmsieve.py.zip

This also includes a few other minor changes to ensure that the script exits gracefully under some obscure error conditions.

It should also work with Python 2.6, 2.7 and 3.1

Brian

Thanks a lot.

I will try it soon.

Regards

[Andi_HB]

Is it possible to sieve on both sides ( -a and -r) ?
Can i change -a to -r in the script (maybe in Line 655 from -a to -r) ?
It would be a nice option to sieve on both sides automatically.

Regards Andi_HB

[miklin]

Originally Posted by Brian Gladman

This is a bug carried over from the original Perl script. It seems that some polynomial processing with msieve has been added before the binary checks are done.

I have revamped the binary checking in version 68 of the script that is now available at:

http://www.gladman.plushost.co.uk/ol...tmsieve.py.zip

This also includes a few other minor changes to ensure that the script exits gracefully under some obscure error conditions.

It should also work with Python 2.6, 2.7 and 3.1

Brian

USE_KLEINJUNG_FRANKE_PS = False
USE_MSIEVE_POLY = True

homes102:/home/factorization/ggnfs/trunk/tests/test_test# ../factmsieve.py example.n 
-> ________________________________________________________________
-> | Running factmsieve.py, a Python driver for MSIEVE with GGNFS |
-> | sieving support. It is Copyright, 2010, Brian Gladman and is |
-> | a conversion of factmsieve.pl that is Copyright, 2004, Chris |
-> | Monico.  Version 0.68 (Python 2.6 or later) 24th April 2010. |
-> |______________________________________________________________|
-> This is client 1 of 1
-> Using 2 threads
-> Working with NAME = example
-> Could not find the program: ./msieve.
-> Did you set the paths properly in this script?
-> They are currently set to:
-> GGNFS_BIN_PATH = ../../bin/
-> MSIEVE_BIN_PATH = ../../bin/

USE_KLEINJUNG_FRANKE_PS = True
USE_MSIEVE_POLY = False

homes102:/home/factorization/ggnfs/trunk/tests/test_test# ../factmsieve.py example.n 
-> ________________________________________________________________
-> | Running factmsieve.py, a Python driver for MSIEVE with GGNFS |
-> | sieving support. It is Copyright, 2010, Brian Gladman and is |
-> | a conversion of factmsieve.pl that is Copyright, 2004, Chris |
-> | Monico.  Version 0.68 (Python 2.6 or later) 24th April 2010. |
-> |______________________________________________________________|
-> This is client 1 of 1
-> Using 2 threads
-> Working with NAME = example
-> Error: Polynomial file example.poly does not exist!
-> Found n = 2881039827457895971881627053137530734638790825166127496066674320241571446494762386620442953820735453.
-> Running polynomial selection ...
-> Could not find the program: pol51m0b.
-> Did you set the paths properly in this script?
-> They are currently set to:
-> GGNFS_BIN_PATH = ../../bin/
-> MSIEVE_BIN_PATH = ../../bin/

[ThomRuley]

So far, so good, but I did have one more question. How does one go about manually setting the polynomial for SNFS?

[Mini-Geek]

Originally Posted by ThomRuley

So far, so good, but I did have one more question. How does one go about manually setting the polynomial for SNFS?

E.g. save the poly in example.poly and run "factmsieve.py example".