[MPI3 Fortran] Start discussing new Fortran binding
Craig E. Rasmussen
rasmussn at lanl.gov
Wed Feb 13 16:07:10 CST 2008
I propose that we have a phone call next week sometime to begin to discuss
potential new Fortran bindings. I have put some ideas on the wiki as a
starting point for discussion (text copied below). I'll add more in the
next couple of days.
! import C interop and MPI interfaces
use, intrinsic :: ISO_C_BINDING
use :: MPI_C_BINDING ! this needs to be given a name
integer(C_INT) :: rank, size, err ! this module needs to be
given a size (C_INT here)
! I think we should provide better interfaces to command line arguments.
! It can be done through GET_COMMAND and GET_COMMAND_ARGUMENT.
! MPI_Init should be able to pass back something like modified C argc and
err = MPI_Init()
! We need to figure out the type of MPI handles.
! Currently I'm leaning toward TYPE(C_PTR) rather than
! the INTEGER(MPI_HANDLE_KIND) Jeff and I used in our paper.
err = MPI_Comm_rank(MPI_COMM_WORLD, rank)
err = MPI_Comm_size(MPI_COMM_WORLD, size)
err = MPI_Finalize()
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