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 ------------------------------------------------------------------------------------------------------------------------ Email: [email protected] SkypeID: stefano.zampini GoogleTalk: [email protected] Tel: +39 06.44486.707 ------------------------------------------------------------------------------------------------------------------------
