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RE: [Help-glpk] memory usage seems very high

From: Meketon, Marc
Subject: RE: [Help-glpk] memory usage seems very high
Date: Wed, 17 Jun 2009 22:55:39 -0400

I have run many large models with this particular build that was compiled using 
Visual Studio 2008 C++ express.

Running Joey's model, I received no error messages - just the first 12 or so 
"generating Cx" statements, and then the command prompt.


-----Original Message-----
From: Andrew Makhorin [mailto:address@hidden 
Sent: Wednesday, June 17, 2009 11:27 PM
To: Meketon, Marc
Cc: Joey Rios; address@hidden
Subject: Re: [Help-glpk] memory usage seems very high

> After glpsol issued the  #8220;generating
> CC.. #8221; line, I received the command prompt.  So it wasn #8217;t
> working.

Hmm... I successfully run that big.mod model under cygwin on a machine
having 2GB of RAM (unfortunately the url is broken now, so I cannot run
it once again).

I'm not sure why glpsol does not work for you; there must be at least
the message "xmalloc: no memory available". Most likely it is a bug in
the C run-time library, *not* in glpk. Which compiler did you use to
compile glpk? (For example, Borland C/C++ run-time library crashes at
exit from the main program due to segmentation fault when the memory
dynamically allocated by the program exceeds 64 Mb.)

Andrew Makhorin

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