[petsc-dev] PETSc - MPI3 functionality

Tamara Dancheva tamaradanceva19933 at gmail.com
Fri Sep 7 12:26:17 CDT 2018


I am developing an asynchronous method for a FEM solver, and need a custom
implementation of the VecScatterBegin and VecScatterEnd routines. Since
PETSc uses its own limited set of MPI functions, could you tell what would
be the best way possible to extend upon it and use for example the
non-blocking collectives, igatherv and so on?

I hope the question is specific enough, let me know if anything, I can
provide with more information. I would very much appreciate any help,
thanks in advance!

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