Hi, To maybe try to speed up my resolution, I would like to not compute the values of the preconditionner at every time step, I was wondering if I could do the following: 1) At a certain point in time, I ll use KSPGetPC<http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/docs/manualpages/KSP/KSPGetPC.html> to get the preconditionner 2) I would then use KSPSetPC<http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/docs/manualpages/KSP/KSPSetPC.html> to set the values of the preconditionner, assuming this will prevent the calculation of the preconditionner values. Is it a correct assumption or should I use a parameter to enforce not re-calculating the precontionner values ? Note that I am using a GMRES solver with a block jacobi preconditionner (superlu).
Thank you Fabien -- Fabien Delalondre, PhD. Senior Research Associate, Scientific Computation Research Center (SCOREC). Rensselaer Polytechnic Institute (RPI), Troy, NY. Email: delalf at scorec.rpi.edu, Phone: (518)-276-8045 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20110919/5dfce488/attachment.htm>
