[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
## Re[2]: [Help-glpk] Solving a large LP problem

**From**: |
Andrew Makhorin |

**Subject**: |
Re[2]: [Help-glpk] Solving a large LP problem |

**Date**: |
Tue, 13 Jul 2004 21:43:03 +0400 |

>*The last one I solved successfully had 1453 rows and 3200 cols before*
>*presolve in a MPS file. glpsol solved it like a snap.*
Do you mean that glpsol failed on other lp instances of moderate size
(say, 2000 rows and 4000 cols)?
>*I also have compiled the package from scratch with the latest source *
>*code on an AIX box using gcc 3.3.3.*
>*Any other thing you want me to check?*
Glpsol successfully solved big lp instances like yours (and even
bigger), so I think it is some stupid bug. Ideally I need to know a
point in glpsol.c where it crashes. You also can try `--nopresol'
option.
How big your mps file if it is gzipped? Can you make it available for
downloading via ftp?
Andrew Makhorin

**[Help-glpk] Solving a large LP problem**, *Samik Raychaudhuri*, `2004/07/13`
**Re: [Help-glpk] Solving a large LP problem**, *Andrew Makhorin*, `2004/07/13`
**Re: [Help-glpk] Solving a large LP problem**, *Samik Raychaudhuri*, `2004/07/13`
**Re[2]: [Help-glpk] Solving a large LP problem**,
*Andrew Makhorin* **<=**
**Re: [Help-glpk] Solving a large LP problem**, *Samik Raychaudhuri*, `2004/07/14`
**Re: [Help-glpk] Solving a large LP problem**, *Samik Raychaudhuri*, `2004/07/15`
**Re[2]: [Help-glpk] Solving a large LP problem**, *Andrew Makhorin*, `2004/07/15`
**Re: [Help-glpk] Solving a large LP problem**, *Samik Raychaudhuri*, `2004/07/15`
**Re[2]: [Help-glpk] Solving a large LP problem**, *Andrew Makhorin*, `2004/07/15`