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whether do I need to consider the symmetric preconditioner when using CG?
- To: petsc-users@xxxxxxxxxxx
- Subject: whether do I need to consider the symmetric preconditioner when using CG?
- From: Yujie <recrusader@xxxxxxxxx>
- Date: Wed, 16 Jan 2008 15:17:28 +0800
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hi, everyone
I know there are three types of preconditioners, that is left, split and right preconditioners? When I use CG method in PETSc, whether do I need to consider select one type of preconditioner? Whether do different types affect the performance of preconditioned CG? thanks a lot.
Regards,
Yujie