Hello,
As is know, GMRES(m) is a very efficient solver when dealing with symmetric
indefinite
system. And the restarted parameter m is critical. When the system is small, I
can do
several tests to find a suitable m. But when the system is very large, it is
very difficult
to do that. I read lots of papers about GMRES(m) and find that almost none told
the way to
get a suitable m. Someone told me that I can just choose the matrix dimension
as the m, but
I find that it is not right.
So, generally, when using GMRES(m) as the sovler, how to use a suitable
restarted m?
Thanks.
Jim
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