zio_new_decomp

INTERFACE:

         integer function zio_new_decomp(decomp,p1,p2,p3,p4,p5)

DESCRIPTION:

Create a descriptor for parallel decomposition of up to 5-D which has p1,p2,...processes along axes. Here, process ranks change fastest along the first axis, then second axis,... (In MPI's Cartesian process topology, rank ordering is the opposite.)

REVISION HISTORY:

       2003-Jan-31 -- first prototype
       2003-Aug-16 -- support single task mode: ZIO_SPMD undefined

USES:

         implicit none

OUTPUT PARAMETERS:

         integer, intent(out) :: decomp

INPUT PARAMETERS:

         integer, intent(in)  :: p1              ! ignored for non-SPMD
         integer, optional, intent(in)  :: p2    ! ignored for non-SPMD
         integer, optional, intent(in)  :: p3    ! ignored for non-SPMD
         integer, optional, intent(in)  :: p4    ! ignored for non-SPMD
         integer, optional, intent(in)  :: p5    ! ignored for non-SPMD

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