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Re: [Help-glpk] Multithreading/parallelization

From: glpk xypron
Subject: Re: [Help-glpk] Multithreading/parallelization
Date: Sat, 15 Dec 2012 14:54:53 +0100

Hello Harley,

you are right that multiple processes may run GLPK at the same time. But many
applications like Apache or Tomcat are multi threaded. So maybe you would
like to create a webservice offering route optimization by solving a TSP. You
wouldn't be able to do so with the current GLPK because Apache has multiple
threads per worker process, and you definitely do not want to shut down
Apache if one of the TSPs has a problem because a user of your webservice
came up with some strange input.

Best regards

Heinrich Schuchardt

-------- Original-Nachricht --------
> Datum: Sun, 16 Dec 2012 00:43:26 +1100
> Betreff: Re: [Help-glpk] Multithreading/parallelization

> In the case of multiple LPs couldn't you just use the existing single
> threaded version and run separate instances of the application as I know
> members of this list already do? What is being gained by running this
> case with one instance of the application.
> I am just trying to understand the different scenarios that need to be
> considered and I suspect that it will take a bit of time to understand
> all of the different use cases for multi threaded execution.
> Harley

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