>On Wed, 1 Sep 2010 20:54:54 +0000, "Li, Zhisong (lizs)" <lizs at mail.uc.edu> >wrote: >> Hi, Petsc Team, >> >> I wonder if Petsc has any function like MPI_Bcast() which can >> broadcast a value to all processes. If we directly add MPI functions >> into the Petsc program, the MPI datatype may be incompatible with the >> Petsc datatype. Does Petsc have any easy way to handle this? > >PETSc registers the types MPIU_SCALAR, MPIU_REAL, and MPIU_INT so you >can use these to send PetscScalar, PetscReal, and PetscInt respectively >using any MPI functions. > >Jed >
What about MPI_DOUBLE?
