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Forum: Main CFD Forum

November 20, 2009, 13:52

Replies: 7

C++ solver for Large sparse matrix!

Views: 4,332

Posted By jed

Note that while it is written in C, it is very...

Note that while it is written in C, it is very much object oriented. PETSc objects use a variant of the delagator/pimpl pattern, but see object creation is (by default) managed by an inversion of...

Forum: Main CFD Forum

November 20, 2009, 12:23

Replies: 7

C++ solver for Large sparse matrix!

Views: 4,332

Posted By jed

What do you dislike? Perhaps I can explain why...

What do you dislike? Perhaps I can explain why certain things are the way they are.

Forum: Main CFD Forum

November 20, 2009, 12:19

Replies: 7

C++ solver for Large sparse matrix!

Views: 4,332

Posted By jed

Penalty is a bad choice with some...

Penalty is a bad choice with some preconditioners, or if the system is very ill-conditioned. The best way is to remove the Dirichlet degrees of freedom, either explicitly, or by making both] the row...

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