Hello,
Thanks for the quick reply. So if I specify matrix A and RHS vector b in parallel forms, ie. having them distributed across several cores, when I using the functions like MatMult, VecAYPX and etc., all the operations would be executed in parallel too? Thanks very much. Best, Chih-Hao ________________________________ From: Hong <[email protected]> Sent: 18 January 2017 15:24:41 To: Chih-Hao Chen Cc: [email protected] Subject: Re: [petsc-users] About GMRES Solver in PETSc Yes. Hong On Wed, Jan 18, 2017 at 2:22 PM, Chih-Hao Chen <[email protected]<mailto:[email protected]>> wrote: Hello, Sorry for this bother. I"ve checked GMRES solver in your libary supports parallel computing in your website: http://www.mcs.anl.gov/petsc/documentation/linearsolvertable.html.<http://www.mcs.anl.gov/petsc/documentation/linearsolvertable.html> Summary of Sparse Linear Solvers Available from PETSc<http://www.mcs.anl.gov/petsc/documentation/linearsolvertable.html> www.mcs.anl.gov<http://www.mcs.anl.gov> Summary of Sparse Linear Solvers Available from PETSc Requests and contributions welcome As we all know the key algorithm inside GMRES solver is Gram-Schmidt process, so I guess if users specify their matrix A and right-hand-side vector b in a linear equation (Ax=b), the Gram-Schmidt process will be executed in parallel, including matrix-vector multiplications and orthogonalization between the basis vectors. Am I correct? Thanks very much. Best, Chih-Hao
