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How to allocate more RAM to the simulation

Posted 14 mars 2018, 08:18 UTC−4 Version 5.3a 1 Reply

Mahmoud Abbaszadeh
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Hi all,

Recently I have bought a supercomputer with 128 GB RAM (4 * 32) and 22 cores Xeon 5 CPU. But when I run simulation, the amount of virtual RAM which is employed is about 2 or 3 GB!!!It is really frustrating. My windows is 10 64bit. I'd be glad if anyone can help me.

Mahmoud

1 Reply Last Post 14 mars 2018, 12:49 UTC−4
Edgar J. Kaiser Certified Consultant
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Posted: 7 years ago 14 mars 2018, 12:49 UTC−4

Could it be that your model just doesn't need more memory? You can check by applying a finer mesh and checking if memory demand is increased. Comsol normally allocates what it needs and what it can get. Also check if all the memory is recognized by Windows.

For small models a big multicore machine may be an overkill and maybe slower than a smaller machine with higher clock frequency.

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Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Could it be that your model just doesn't need more memory? You can check by applying a finer mesh and checking if memory demand is increased. Comsol normally allocates what it needs and what it can get. Also check if all the memory is recognized by Windows. For small models a big multicore machine may be an overkill and maybe slower than a smaller machine with higher clock frequency.

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