Re: [Bug-glpk] problem with fpump option

[Andrew Makhorin]

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