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Forum: Main CFD Forum

June 24, 2010, 06:24

Replies: 4

Inversion of large sparse linear systems

Views: 1,991

Posted By jed

You never want the inverse

Maybe you misunderstand the process of "solving". You don't want the inverse because it's dense and numerically unstable. Instead, you factor the matrix, and then solve with sparse triangular...

Forum: Main CFD Forum

June 23, 2010, 18:13

Replies: 4

Inversion of large sparse linear systems

Views: 1,991

Posted By jed

These suggestions are worthless for sparse...

These suggestions are worthless for sparse systems. I recommend PETSc (http://mcs.anl.gov/petsc), it runs everywhere (Linux, Mac, Windows, exotic Unix, and even iPhone ;-)), scales to very large...

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