I have a collegue who is considering to use PETSc for programming his problem. He would like to know if you can get the actual inverse of a matrix, because this inverse is embedded in another larger system that is then solved.
I suppose that if you solve the system directly, say with SuperLU or MUMPS, you could get the actual inverse? I looked briefly through the manual and documentation, but it didn't jump out at me. Any advice here? Thanks, Randy -- Randall Mackie GSY-USA, Inc. PMB# 643 2261 Market St., San Francisco, CA 94114-1600 Tel (415) 469-8649 Fax (415) 469-5044 California Registered Geophysicist License No. GP 1034
