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Wave Optics Module will not Run

Posted Sep 25, 2023, 12:28 p.m. EDT 1 Reply

Richard Egan
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I am not able to get this model to run and get Warning message “MUMPS is switching to out-of-core mode”. Also get error message: Failed to find solution. Unable to read o write out-of-core file. I have tried different meshing (normal, fine and custom) but no luck in getting it to run. Could it be a meshing issue or something else.

Best regards, Richard P.S. Running Windows and COMSOL 6.1

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1 Reply Last Post Sep 25, 2023, 2:35 p.m. EDT
Robert Koslover Certified Consultant
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Posted: 7 months ago Sep 25, 2023, 2:35 p.m. EDT
Updated: 7 months ago Sep 25, 2023, 2:25 p.m. EDT

Switching to out-of-core mode suggests that your problem, as presently configured, is too large for your available RAM. Aside from adjusting the mesh, also consider employing other methods to reduce the required amount of RAM to solve your problem, such as using linear instead of quadratic discretization, and/or employing an interative solver instead of a direct solver.

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Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
Switching to out-of-core mode suggests that your problem, as presently configured, is too large for your available RAM. Aside from adjusting the mesh, also consider employing other methods to reduce the required amount of RAM to solve your problem, such as using linear instead of quadratic discretization, and/or employing an interative solver instead of a direct solver.

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