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Re: [Help-glpk] CPU usage with glpk


From: Andrew Makhorin
Subject: Re: [Help-glpk] CPU usage with glpk
Date: Fri, 24 Feb 2012 14:56:24 +0300

> I have implemented a hydroelectric scheduling problem using GLPK, and
> have made ​​an issue of timing of implementation.

> I’m using a virtual machine running Windows server 64-bit with 8 GB
> RAM and a 3-cpu Intel xeon 1.8 GHz each.

> The problem I am solving is quite complex, and optimization timing are
> long (exceeding even one hour). I then tested cpu usage and I noticed
> that during job execution, the function GLPK uses only one processor,
> then approx.. 33% of total computational performance.

> It is somehow possible to utilize all cpu power?

> I hope You can help me in some way.

Sorry. Glpk is designed only for uniprocessor platforms, so its code
cannot be parallelized.




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