[Coin-ipopt] Bug report on GAMS-IPOPT

Fengqi You fyou at andrew.cmu.edu
Fri Nov 16 13:15:24 EST 2007


When I use ipopt for small scale problem, it works well, though very 
slow. But When I try it on a large scale problem in GAMS, it shows the 
following:


IpOp3014W OA on non-convex constraint is very experimental, don't know 
how to remove
IpOp3014W OA on non-convex constraint is very experimental, don't know 
how to remove
MUMPS returned INFO(1) =-13 MUMPS failure.
Exception of type: FATAL_ERROR_IN_LINEAR_SOLVER in file 
"../../../../GAMSlinks-trunk/Ipopt/src/Algorithm/IpStdAugSystemSolver.cpp" 
at line 219:
  Exception message: A fatal error occured in the linear solver.
Ipopt has failed to solve a problem.
--- Restarting execution
--- outer_app.gms(90) 0 Mb
--- Reading solution for model p2
*** Status: Normal completion
--- Job outer_app.gms Stop 11/16/07 12:24:42 elapsed 0:03:53.078


-- 

______________________________
Fengqi(Philip) You
Dept. of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
Tel: (412)216-2644
http://andrew.cmu.edu/~fyou



More information about the Coin-ipopt mailing list