Re: [Bug-glpk] stack overflow error in version 4.17 compiled with VC8

2007-07-04 Thread Andrew Makhorin
> I am using GLPK version 4.17 as a multi-threaded DLL compiled with > visual studio 2005 for windows (version VC8). > GLPK is used in a column generation algorithm. Multiple iterations of > adding some columns, solving LP, retrieving primal and dual variable > information. > For problem sizes aro

Re: [Bug-glpk] detecting a memory leak in glpk 4.17

2007-07-04 Thread Andrew Makhorin
> I am using GLPK 4.17 compiled for windows to a DLL > The application solves a problem in a column generation scheme. > The algorithm completes successfully. > When shutting down the application, GLPK gives the following memory leak > detecting memory leaks: Data "4.17" with size 136 bytes > I a

Re: [Bug-glpk] write_freemps does not write objective function coefficients

2007-07-04 Thread Andrew Makhorin
> Trying to debug a stack error in GLPK, I am writing the problem out at > every iteration of a column generation scheme > Initially only in the free mps format, but then also in the lp format > One major and one minor error occur: > major: write_freemps does not write the objective function coeffi

Re: [Bug-glpk] Assertion failure in glp_simplex GLPK-4.18

2007-07-04 Thread Andrew Makhorin
> I am using GLPK-4.18 with the new version of octave 2.9.12. I've > pasted in the octave program in case it is needed as a reference. > The bug however is that in glplpx01.c the assertion on line 345 > fails because there is no case in the switch statement for error > code 0x4. > Here is the erro