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February 4, 2013 12:07am UTC

Comsol 4.3a Memory problem -- not using enough RAM

Hello everyone,

Usually the complain is that Comsol is using too much memory, but in my case its other way round.


I have a really nice machine in the lab with windows 8 server. I have Comsol version 4.3a installed. I am trying to run an RF module computation, where I am trying to create a fine mesh.

My problem is that even though the computer has 256 GB or RAM, the comsol uses only 1.2 GB or so maximum. Also, I have a 16 core x 2 processor but it uses only 3.5% of the cpu at max.

Coule anyone please explain to me if there is a way to overcome this problem. did anyone else have the same problem?

Thanks in advance.

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February 4, 2013 2:51pm UTC in response to Ivar Kjelberg

Re: Comsol 4.3a Memory problem -- not using enough RAM

So in order to use multiple processors, I checked the options of Comsol and changed the number of processors from 1 to the value I have and it seems like it can use many processors. Nevertheless, for the meshing, it still uses around 700MB maximum. At the bottom it always stays

Working set: around 670MB | virtual 780MB.

After changing the number of processors, the cpu %age went up but after 5 minuts the cpu usage stays between 2.5% to 3% and of course it takes forever to mesh. My first trial of meshing is still not done.

Any help would be greatly appreciated.

Thanks Mr. Ivar Kjelberg for your quick response!

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