How should I set up the MUMPS solver?

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In my solution model, the degree of freedom to be solved is 26032722, and the physical memory of the workstation used is 512G. However, when using the mumps solver, it always utilizes virtual memory, and the usage of virtual memory exceeds the physical memory, even if there is a substantial amount of free physical memory. This greatly slows down the speed of computation. How should this issue be addressed?


1 Reply Last Post 13 janv. 2025, 11:43 UTC−5
Robert Koslover Certified Consultant

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Posted: 2 days ago 13 janv. 2025, 11:43 UTC−5
Updated: 2 days ago 13 janv. 2025, 11:43 UTC−5

That is a computationally large model. See: https://www.comsol.com/support/knowledgebase/1030 . Consider using an iterative solver instead of MUMPS.

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Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
That is a computationally large model. See: https://www.comsol.com/support/knowledgebase/1030 . Consider using an iterative solver instead of MUMPS.

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