Error while running factmsieve.py

[Romuald]

Hello,

I've exactly followed the instructions as described in the standalone script here http://mersenneforum.org/showpost.ph...5&postcount=25 about 8 months ago and I had kept functionnal my installation & compilation.

But whan I want to run it today there is an error.

matthias@matthias-Aspire-V3-771G:/media/matthias/DATA/Archives_Matthias_Louis/En
cyclopédie/Sciences/Cryptographie/Programmes de factorisation/Factoring-factmsieve.py-MSIEVE-GGNFS-YAFU-[Ubuntu]/Factoring-factmsieve.py-MSIEVE-GGNFS-YAFU_[Ubuntu]$ time ./factmsieve.py example
-> +--------------------------------------------------------------+
-> | Running factmsieve.py, a Python driver for MSIEVE with GGNFS |
-> | sieving support.   It is Copyright, 2010-2013, Brian Gladman |
-> | and is a conversion of factmsieve.pl that is Copyright, 2004 |
-> | Chris Monico.  This is version 0.77, 27th August 2013.       |
-> +--------------------------------------------------------------+
-> This is client 1 of 1
-> Running on 6 Cores with 2 hyper-threads per Core
-> Working with NAME = example
-> Selected default factorization parameters for 100 digit level.
-> Selected lattice siever: gnfs-lasieve4I12e
-> No parameter change detected, resuming... 
-> Running setup ...
-> Estimated minimum relations needed: 4.095e+06
-> resuming a block for q from 1000000 to 1100000
-> Running lattice siever ...
-> entering sieving loop
-> making sieve job for q = 1002719 in 1000000 .. 1008333 as file example.job.T0
-> making sieve job for q = 1011359 in 1008333 .. 1016666 as file example.job.T1
-> making sieve job for q = 1019801 in 1016666 .. 1024999 as file example.job.T2
-> making sieve job for q = 1028089 in 1024999 .. 1033332 as file example.job.T3
-> making sieve job for q = 1036531 in 1033332 .. 1041665 as file example.job.T4
-> making sieve job for q = 1044941 in 1041665 .. 1049998 as file example.job.T5
-> making sieve job for q = 1053467 in 1049998 .. 1058331 as file example.job.T6
-> making sieve job for q = 1061171 in 1058331 .. 1066664 as file example.job.T7
-> making sieve job for q = 1069349 in 1066664 .. 1074997 as file example.job.T8
-> making sieve job for q = 1077799 in 1074997 .. 1083330 as file example.job.T9
-> making sieve job for q = 1086331 in 1083330 .. 1091663 as file example.job.T10
-> making sieve job for q = 1094633 in 1091663 .. 1099996 as file example.job.T11
-> Lattice sieving algebraic q from 1000000 to 1100000.
-> gnfs-lasieve4I12e -k -o example.out.T0 -v -n0 -a example.job.T0
Traceback (most recent call last):
  File "./factmsieve.py", line 2017, in <module>
    run_siever(client_id, num_clients, SV_THREADS, fact_p, lats_p)
  File "./factmsieve.py", line 1648, in run_siever
    procs.append(run_exe(lats_p['siever'], args, wait = False))
  File "./factmsieve.py", line 350, in run_exe
    p = subprocess.Popen([ex] + args.split(' '), **al)
  File "/home/matthias/anaconda3/lib/python3.5/subprocess.py", line 950, in __init__
    restore_signals, start_new_session)
  File "/home/matthias/anaconda3/lib/python3.5/subprocess.py", line 1545, in _execute_child
    raise child_exception_type(err_msg)
subprocess.SubprocessError: Exception occurred in preexec_fn.

real    0m0.204s
user    0m0.172s
sys    0m0.012s
matthias@matthias-Aspire-V3-771G:/media/matthias/DATA/Archives_Matthias_Louis/En
cyclopédie/Sciences/Cryptographie/Programmes de factorisation/Factoring-factmsieve.py-MSIEVE-GGNFS-YAFU-[Ubuntu]/Factoring-factmsieve.py-MSIEVE-GGNFS-YAFU_[Ubuntu]$

Any idea ? Thx