Re: [Help-glpk] [Fwd: GLPSOL just died on me and there was still lots of memory avaiable]

[Andrew Makhorin]

> Hi. I just ran glpsol for a big problem I have here and it just died
> after one hour running and 900MB consumed. There was still 2GB avaiable
> for it to use but the process died anyway. Here is part of the log file:
> 
> 350 rows, 13689 columns, 27840 non-zeros
> 232 integer variables, none of which are binary
> 10741 lines were read
> GLPK Integer Optimizer, v4.45
> 350 rows, 13689 columns, 27840 non-zeros
> 232 integer variables, none of which are binary
> Preprocessing...
> 350 rows, 13688 columns, 27840 non-zeros
> 232 integer variables, all of which are binary
> 
> It was a simplex problem and the command I used was:
> 
> glpsol --log output.log -o output.txt --lp AS_FILE.LTX
> 

You could try to specify --bestp (or --dfs) option to reduce the memory
usage. Note, however, that your mip instance may be hard for the glpk
mip solver due to its size. Try also --fpump and --mir.