[petsc-users] About GMRES Solver in PETSc

[Hong]

Yes.
Hong

On Wed, Jan 18, 2017 at 2:22 PM, Chih-Hao Chen <
chih-hao.chen2 at mail.mcgill.ca> 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
> 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
>
>
>
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