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Old   January 31, 2012, 08:43
Default MultiLevel Docomposition
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Dear All,

do you have any experience with the new multiLevel docomposition (core/node)? How much does it accelerate? Do you know some reference, validation, testing?

Have a nice day,
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Old   January 31, 2012, 17:11
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Greetings Typhoon,

The closest thing I've seen here in the forum is the n-halo decomposition: Parallelization with halo layer - so you might want to ask thibault_pringuey directly what results he got.

The other closest thing I know of is the work that is either being done or has already been done in the variant OpenFOAM 1.6-ext, where multi-threading capabilities have been (or tried to) added. I've never used it like that, so I don't have a clue if it's better or not.

The other thing you might want to look for is OpenFOAM with "OpenMP" (not OpenMPI), but I haven't seen anything about yet.

Best regards,
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Old   April 23, 2012, 19:42
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Did you ever figure out how to do multi level decomposition and what the speed up is?
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parallel decomposition

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