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Re: [Bug-glpk] problem with fpump option
From: |
Andrew Makhorin |
Subject: |
Re: [Bug-glpk] problem with fpump option |
Date: |
Thu, 17 Mar 2016 19:45:53 +0300 |
Thank you for your bug report.
> I try to tune parameters of glpsol.exe for improving optimization
> performance.
>
> I noticed that option fpump often gave a huge boost by finding quickly
> a good solution.
>
> My problem is that for some data, glpsol.exe met an unexpected error
> just before leaving.
>
[...]
> Error: 1 memory block(s) were lost
>
> Error detected in file ..\examples\glpsol.c at line 1494
>
>
>
> In fact, the optimization problem has been solved and the solution
> file has been written.
>
> So, the bug occurs just before leaving and I obtain a pop-up window
> allowing to debug or close the program.
>
>
>
> I know that if I delete fpump option from command line, it works.
>
Yes, there is a memory leak in the fpump routine. It is a minor bug, so
you may simply ignore it.
The bug will be fixed in a next release of the package.
> But for some other data, I need to find quickly (1 min) a solution and
> without fpump, no solution has been obtained before time limit.
>
>
>
> If anyone has any idea, it would be great !
>
Andrew Makhorin
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