Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed2a.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.000 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'url:pypi': 0.03; 'subject:Python': 0.06; 'modified': 0.07; 'parameter': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'rows': 0.09; 'rows,': 0.09; 'subject:using': 0.09; 'subject:while': 0.09; 'api': 0.11; 'python': 0.11; '0.03': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'subject:API': 0.16; 'subject:core': 0.16; 'fix': 0.17; 'trying': 0.19; 'everyone,': 0.19; 'install': 0.23; 'header:User-Agent:1': 0.23; 'error': 0.23; 'header:X-Complaints-To:1': 0.27; 'tried': 0.27; 'subject:) ': 0.29; 'lines': 0.31; 'fault': 0.31; 'file:': 0.31; 'reduced': 0.31; 'time:': 0.31; 'writes:': 0.31; 'file': 0.32; 'this.': 0.32; 'figure': 0.32; 'url:python': 0.33; 'problem': 0.35; 'subject: (': 0.35; 'test': 0.35; 'version': 0.36; 'grateful': 0.36; 'url:org': 0.36; 'message-id:@gmail.com': 0.38; 'solving': 0.38; 'to:addr :python-list': 0.38; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'solve': 0.60; 'email addr:gmail.com': 0.63; 'completion': 0.78; '180': 0.84; 'sec.': 0.84; 'received:89': 0.85 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Akira Li <4kir4.1i@gmail.com> Subject: Re: Segmentation fault (core dumped) while using Cplex Python API Date: Mon, 02 Jun 2014 02:34:19 +0400 References: Mime-Version: 1.0 Content-Type: text/plain X-Gmane-NNTP-Posting-Host: 89.169.229.68 User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) Cancel-Lock: sha1:jb80Y7qXv/Wtwj9+RrePBXHL7wU= X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 56 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1401662078 news.xs4all.nl 2941 [2001:888:2000:d::a6]:46518 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:72384 varun7rs@gmail.com writes: > Hello Everyone, > > I am trying to solve a mixed-integer problem using Cplex Python API > and I get this error Segmentation fault (core dumped). i am not able > to figure out the reason for this. > Traceback > > srva@hades:~$ python RW10.py --output test --logPath log --xml topology.xml > Start Time: 2014-6-1-20-56-39 > CPLEX Parameter File Version 12.5.0.0 > CPX_PARAM_TILIM 3600 > CPX_PARAM_TRELIM 20000.00 > CPX_PARAM_EPGAP 0.03 > CPX_PARAM_EACHCUTLIM 2100000000 > CPX_PARAM_FLOWCOVERS 0 > CPX_PARAM_FLOWPATHS 0 > CPX_PARAM_CLIQUES 0 > CPX_PARAM_DISJCUTS 0 > CPX_PARAM_COVERS 0 > CPX_PARAM_ZEROHALFCUTS 0 > CPX_PARAM_MIRCUTS 0 > CPX_PARAM_MCFCUTS 0 > CPX_PARAM_IMPLBD 0 > CPX_PARAM_GUBCOVERS 0 > CPX_PARAM_AGGCUTLIM 3 > > Completion Time: 972.63 > Num Columns: 1350888 > Num Rows: 25488 > Solving > Segmentation fault (core dumped) > > A few lines from the log file: > > Completion Time: 972.63 > Num Columns: 1350888 > Num Rows: 25488 > Tried aggregator 1 time. > MIP Presolve eliminated 12648 rows and 1321088 columns. > MIP Presolve modified 180 coefficients. > Reduced MIP has 12840 rows, 29800 columns, and 136000 nonzeros. > Reduced MIP has 29800 binaries, 0 generals, 0 SOSs, and 0 indicators. > Presolve time = 0.49 sec. (368.57 ticks) > > I would be grateful if someone can help me fix this. Install and enable faulthandler https://pypi.python.org/pypi/faulthandler/ to see where Segmentation fault happens -- akira