-------- Forwarded Message -------- From: Charles Brixko <[email protected]> To: [email protected] Subject: GLPK bugs report Date: Thu, 11 Jul 2013 04:34:09 +0200
Hello, I tested the MIPLIB 2010 benchmark files on GLPK 4.51 (with gmp-5.1.2) compiled with gcc 4.8.1 on Fedora 18 64 bits. The conclusions are : The tests files come from MIPLIB 2010 from http://miplib.zib.de/ --benchmark instances-- The acc-tight5.mps result with 4.49 comes from http://plato.asu.edu/ftp/milpc_res1/benchmark.glpk.res, see also http://plato.asu.edu/ --Benchmarks for Optimization Software-- triptim1 without GLPK option wrongly declared PROBLEM HAS NO FEASIBLE SOLUTION acc-tight5 still working after 7200 sec., was resolved fast with 4.49 neos13 (as a lot of others) with "--proxy --tmlim 3600" generated Error: 1986 memory block(s) were lost Error detected in file glpapi21.c at line 1350 glass4 with "--proxy --tmlim 3600" generated Assertion failed: piv1 != 0.0 Error detected in file glpspx02.c at line 3000 mine-166-5 (as mine-90-10 and satellite1-25) with "--cuts" generated Assertion failed: x >= -0.001 Error detected in file glpios06.c at line 968 Abandon (core dumped) pw-myciel with "--cuts" generated PROBLEM HAS NO INTEGER FEASIBLE SOLUTION although it is resolved fast by CPLEX (http://plato.asu.edu/ftp/milpc_res12/benchmark.cplex.res) and others I hope this will help you improve GLPK and can send you, on request, any information or files from my test session. Best regards, Charles Brixko [email protected] _______________________________________________ Bug-glpk mailing list [email protected] https://lists.gnu.org/mailman/listinfo/bug-glpk
