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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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RAM Memory usage, Comsol 4.2a, RF module

Posted 2012年11月23日 GMT-5 05:53 RF & Microwave Engineering Version 4.2a 1 Reply

Nikola Bralovic
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Dear All,

I have one question, maybe some of you have experience with that.

Where I can find information about relation between number of degrees of freedom (DOF) and RAM memory I need for that number.

So, to simplify, how much RAM memory I need (approximately of course) for simulation where I have 800 000 DOF, 900 000 DOF, 1000 000 DOF, maybe 1300 000 DOF is maximum.

Is 16GB RAM memory enough or not?


I have i7 processor, 4 cores.


Thank for any help

1 Reply Last Post 2012年11月23日 GMT-5 05:59
Edgar Kaiser
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Posted: 1 decade ago 2012年11月23日 GMT-5 05:59

Hi,

I recently had a 1.7 million DOF model that took approx. 50 GB using a direct solver. Iterative solvers take less. 16 GB will problably not take you to 1 M DOF.

Cheers
Edgar
Hi, I recently had a 1.7 million DOF model that took approx. 50 GB using a direct solver. Iterative solvers take less. 16 GB will problably not take you to 1 M DOF. Cheers Edgar

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