Re: [petsc-users] Where to restrict MPI Communicator

On Tue, Feb 7, 2017 at 8:06 AM, Florian Lindner wrote: > Hello, > > so far we have happily set PETSC_COMM_WORLD anywhere in our code and we > were not having trouble with that. > > However http://www.mcs.anl.gov/petsc/petsc-current/docs/ >

[petsc-users] Where to restrict MPI Communicator

Hello, so far we have happily set PETSC_COMM_WORLD anywhere in our code and we were not having trouble with that. However http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Sys/PETSC_COMM_WORLD.html states that: "Notes: By default PETSC_COMM_WORLD and MPI_COMM_WORLD are identical