What is the fastest preconditioner for GMRES? Is there a *PBX* preconditioner implemented by matlab?

2 views (last 30 days)
Alston Yang
Alston Yang on 29 May 2016
Hi everyone,
I'm trying to solve Ax=b where A is large (1m*1m ) sparse non-symmetric matrix. GMres function seems fine for me. But I need a efficient preconditioner. ILU is too slow and takes too much time.
My tutor told me that perhaps PBX will be an alternative. Is there a PBX preconditioner within matlab?
Thx a lot

Sign in to answer this question.

Answers (0)

Categories

Find more on Sparse Matrices in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!