Dear all, Currently I am using a direct LU solver via PETSc/MUMPS to solve my matrix. However, I have noticed that I spend a lot of time in allocation, at every step. Is it possible (or useful) to preallocate the internal structures necessary to solve the matrix? According to [1], it is possible to do it if I use UMFPack, but it seems I would need to change a bit more code to still work with MPI, so would be simpler to do it while using PETSc/MUMPS.
Bests, Lucas [1]https://www.dealii.org/developer/doxygen/deal.II/classSparseDirectUMFPACK.html -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
