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Forum: OpenFOAM

February 8, 2006, 04:32

Replies: 36

Lies Damn Lies and Benchmarking

Views: 5,211

Posted By mattijs

Everything is fully/exactly pa

Everything is fully/exactly parallelized but for the IC (incomplete cholesky) preconditioning. This means that iccg and amg will behave slightly different in parallel. Only the diagonal...

Forum: OpenFOAM

February 7, 2006, 13:19

Replies: 36

Lies Damn Lies and Benchmarking

Views: 5,211

Posted By mattijs

> Can anyone tell me if the pa

> Can anyone tell me if the parallellization in OpenFOAM is made so that a parallel run should give exactly (more or less) the same convergence as a sequential run?

Not exactly. (IC)...

Forum: OpenFOAM

February 7, 2006, 13:16

Replies: 36

Lies Damn Lies and Benchmarking

Views: 5,211

Posted By mattijs

decomposition: we find (on sim

decomposition: we find (on simplish cases) that hierarchical or simple can give as good results as or better results than Metis.

For trivial cases (e.g. lid-driven cavity) Metis produces a funny...

Forum: OpenFOAM

January 16, 2006, 13:56

Replies: 36

Lies Damn Lies and Benchmarking

Views: 5,211

Posted By mattijs

Can you report any problems wi

Can you report any problems with decomposePar?

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