[GAP Forum] change size of memory used by gap

Daniel Espinosa desp at xanum.uam.mx
Sat Nov 28 06:17:42 GMT 2009


Dear Narisa Sindhu

Under Win XP you only can use 3GB of total RAM. You should try

C:\GAP4R4\bin\gapw95.exe  -o 512m -l C:\GAP4R4\....

editing the

C:\GAP4R4\bin\gap.bat

file with "notepad" application or another text editor.



Best Regards
Daniel Espinosa

On Fri, 27 Nov 2009, Nasira Sindhu wrote:

> Dear GAP Forum,
>
> I wrote a GAP programm which has a big need of memory. I use Win XP Home Editio SP3 on a P4 2,93 GHZ, 2GB RAM.
> With the standard GAP installation, GAP starts with
> C:\GAP4R4\bin\gapw95.exe -o 32m -l C:\GAP4R4\....
>
> With the -o command you can change the size of the memory use, but when I change the memory to something like -o 512m I get an error message while running my programm:
> gap: cannot extend the workspace any more
> gap: Press <Enter> to end program
>
> A look on the system monitor tells me that GAP did not really use the 512 mb.
>
> What is wrong with my -o command?
> Is there another way to get more memory for GAP?
>
>
> Best regards,
> Nasira
>



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