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!
! Copyright (C) by Argonne National Laboratory
! See COPYRIGHT in top-level directory
!
program main
use mpi_f08
integer ierr
integer errs
integer nints, nadds, ndtypes, combiner
integer nparms(2)
TYPE(MPI_Datatype) dummy(1)
integer (kind=MPI_ADDRESS_KIND) adummy(1)
integer nsize, i
TYPE(MPI_Datatype) ntype1, ntype2, ntype3
!
! Test the Type_create_f90_xxx routines
!
errs = 0
call mtest_init( ierr )
! integers with up to 9 are 4 bytes integers; r of 4 are 2 byte,
! and r of 2 is 1 byte
call mpi_type_create_f90_integer( 9, ntype1, ierr )
!
! Check with get contents and envelope...
call mpi_type_get_envelope( ntype1, nints, nadds, ndtypes, &
combiner, ierr )
if (nadds .ne. 0) then
errs = errs + 1
print *, "There should be no addresses on created type (r=9)"
endif
if (ndtypes .ne. 0) then
errs = errs + 1
print *, "There should be no datatypes on created type (r=9)"
endif
if (nints .ne. 1) then
errs = errs + 1
print *, "There should be exactly 1 integer on create type (r=9)"
endif
if (combiner .ne. MPI_COMBINER_F90_INTEGER) then
errs = errs + 1
print *, "The combiner should be INTEGER, not ", combiner
endif
if (nints .eq. 1) then
call mpi_type_get_contents( ntype1, 1, 0, 0, &
nparms, adummy, dummy, ierr )
if (nparms(1) .ne. 9) then
errs = errs + 1
print *, "parameter was ", nparms(1), " should be 9"
endif
endif
call mpi_type_create_f90_integer( 8, ntype2, ierr )
if (ntype1 .eq. ntype2) then
errs = errs + 1
print *, "Types with r = 8 and r = 9 are the same, ", &
"should be distinct"
endif
!
! Check that we don't create new types each time. This test will fail only
! if the MPI implementation checks for un-freed types or runs out of space
do i=1, 100000
call mpi_type_create_f90_integer( 8, ntype3, ierr )
enddo
call mtest_finalize( errs )
end
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