KSPSolve(), multiple rhs and preconditioner

2009-03-26 Thread Matthew Knepley
On Thu, Mar 26, 2009 at 1:03 AM, Yujie wrote: > Hi, PETSc developers > > I am wondering what the difference is when iterative preconditioners (such > as ILU, sparse approximation inverse and so on) are used in single and > multiple rhs using KSPSolve(). > > In multiple rhs case, the preconditione

KSPSolve(), multiple rhs and preconditioner

2009-03-25 Thread Yujie
Hi, PETSc developers I am wondering what the difference is when iterative preconditioners (such as ILU, sparse approximation inverse and so on) are used in single and multiple rhs using KSPSolve(). In multiple rhs case, the preconditioners are made to each rhs? Thanks a lot. Regards, Yujie