[petsc-dev] chebychev method

[Stefano Zampini]

Currently, the man page for
chebychev<http://www.mcs.anl.gov/petsc/petsc-dev/docs/manualpages/KSP/KSPCHEBYSHEV.html>states
that it will only work for symmetric positive (semi-)definite
systems, but the chebychev code has support for nonsymmetric systems using
the hybrid approach. Is the hybrid branch still a work in progress?
Who can give me some quick hints on how to work with it?

I wish to make Chebychev the default KSP for the coarse problem of the
BDDC, and I'd wish to know in which cases it will work or not.

Thanks,
-- 

Ph. D. Stefano Zampini
CINECA
SuperComputing Applications and Innovations Department - SCAI
Via dei Tizii, 6 00185 Roma - ITALY
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Email: s.zampini at cineca.it
SkypeID: stefano.zampini
GoogleTalk: stefano.zampini at gmail.com
Tel: +39 06.44486.707
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