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Source code changes of the file "nf_test/f90tst_parallel2.f90" between
netcdf-fortran-4.4.4.tar.gz and netcdf-fortran-4.4.5.tar.gz

About: NetCDF (network Common Data Form) is a set of software libraries and machine-independent data formats that support the creation, access, and sharing of array-oriented scientific data (Fortran library).

f90tst_parallel2.f90  (netcdf-fortran-4.4.4):f90tst_parallel2.f90  (netcdf-fortran-4.4.5)
skipping to change at line 43 skipping to change at line 43
! _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, ! _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _,
! 2, _, 2, _, 2, _, 2, _, 3, _, 3, _, 3, _, 3, _, ! 2, _, 2, _, 2, _, 2, _, 3, _, 3, _, 3, _, 3, _,
! _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, ! _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _,
! 0, _, 0, _, 0, _, 0, _, 0, _, 0, _, 0, _, 0, _, ! 0, _, 0, _, 0, _, 0, _, 0, _, 0, _, 0, _, 0, _,
! _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _ ; ! _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _ ;
! } ! }
! $Id: f90tst_parallel2.f90,v 1.4 2010/05/25 13:53:04 ed Exp $ ! $Id: f90tst_parallel2.f90,v 1.4 2010/05/25 13:53:04 ed Exp $
program f90tst_parallel program f90tst_parallel
use typeSizes
use netcdf use netcdf
implicit none implicit none
include 'mpif.h' include 'mpif.h'
! This is the name of the data file we will create.
character (len = *), parameter :: FILE_NAME = "f90tst_parallel2.nc"
integer, parameter :: MAX_DIMS = 2
integer, parameter :: NX = 16, NY = 16
integer, parameter :: NUM_PROC = 4
integer :: ncid, varid, dimids(MAX_DIMS)
integer :: x_dimid, y_dimid
integer :: data_out(NY / 4, NX / 4), data_in(NY / 4, NX / 4)
integer :: mode_flag integer :: mode_flag
integer :: nvars, ngatts, ndims, unlimdimid, file_format
integer :: x, y
integer :: p, my_rank, ierr integer :: p, my_rank, ierr
integer :: start(MAX_DIMS), count(MAX_DIMS), stride(MAX_DIMS)
call MPI_Init(ierr) call MPI_Init(ierr)
call MPI_Comm_rank(MPI_COMM_WORLD, my_rank, ierr) call MPI_Comm_rank(MPI_COMM_WORLD, my_rank, ierr)
call MPI_Comm_size(MPI_COMM_WORLD, p, ierr) call MPI_Comm_size(MPI_COMM_WORLD, p, ierr)
if (my_rank .eq. 0) then if (my_rank .eq. 0) then
print *, ' ' print *, ' '
print *, '*** Testing netCDF-4 parallel I/O with strided access.' print *, '*** Testing netCDF-4 parallel I/O with strided access.'
endif endif
! There must be 4 procs for this test. ! There must be 4 procs for this test.
if (p .ne. 4) then if (p .ne. 4) then
print *, 'Sorry, this test program must be run on four processors.' print *, 'Sorry, this test program must be run on four processors.'
stop 2 stop 2
endif endif
#ifdef NF_HAS_PNETCDF
mode_flag = IOR(nf90_clobber, nf90_mpiio)
call parallel_io(mode_flag)
#endif
#ifdef NF_HAS_PARALLEL4
mode_flag = IOR(nf90_netcdf4, nf90_classic_model)
mode_flag = IOR(mode_flag, nf90_mpiposix)
mode_flag = IOR(mode_flag, nf90_clobber)
call parallel_io(mode_flag)
#endif
call MPI_Finalize(ierr)
if (my_rank .eq. 0) print *,'*** SUCCESS!'
contains
! This subroutine handles errors by printing an error message and
! exiting with a non-zero status.
subroutine handle_err(errcode)
use netcdf
implicit none
integer, intent(in) :: errcode
if(errcode /= nf90_noerr) then
print *, 'Error: ', trim(nf90_strerror(errcode))
stop 5
endif
end subroutine handle_err
subroutine parallel_io(mode_flag)
use typeSizes
use netcdf
implicit none
include 'mpif.h'
integer :: mode_flag
! This is the name of the data file we will create.
character (len = *), parameter :: FILE_NAME = "f90tst_parallel2.nc"
integer, parameter :: MAX_DIMS = 2
integer, parameter :: NX = 16, NY = 16
integer, parameter :: NUM_PROC = 4
integer :: ncid, varid, dimids(MAX_DIMS)
integer :: x_dimid, y_dimid
integer :: data_out(NY / 4, NX / 4), data_in(NY / 4, NX / 4)
integer :: nvars, ngatts, ndims, unlimdimid, file_format
integer :: x, y
integer :: my_rank, ierr
integer :: start(MAX_DIMS), count(MAX_DIMS), stride(MAX_DIMS)
call MPI_Comm_rank(MPI_COMM_WORLD, my_rank, ierr)
! Create some pretend data. ! Create some pretend data.
do x = 1, NX / 4 do x = 1, NX / 4
do y = 1, NY / 4 do y = 1, NY / 4
data_out(y, x) = my_rank data_out(y, x) = my_rank
end do end do
end do end do
! Create the netCDF file. ! Create the netCDF file.
mode_flag = IOR(nf90_netcdf4, nf90_classic_model)
mode_flag = IOR(mode_flag, nf90_mpiposix)
call handle_err(nf90_create(FILE_NAME, mode_flag, ncid, comm = MPI_COMM_WORLD, & call handle_err(nf90_create(FILE_NAME, mode_flag, ncid, comm = MPI_COMM_WORLD, &
info = MPI_INFO_NULL)) info = MPI_INFO_NULL))
! Define the dimensions. ! Define the dimensions.
call handle_err(nf90_def_dim(ncid, "x", NX, x_dimid)) call handle_err(nf90_def_dim(ncid, "x", NX, x_dimid))
call handle_err(nf90_def_dim(ncid, "y", NY, y_dimid)) call handle_err(nf90_def_dim(ncid, "y", NY, y_dimid))
dimids = (/ y_dimid, x_dimid /) dimids = (/ y_dimid, x_dimid /)
! Define the variable. ! Define the variable.
call handle_err(nf90_def_var(ncid, "data", NF90_INT, dimids, varid)) call handle_err(nf90_def_var(ncid, "data", NF90_INT, dimids, varid))
skipping to change at line 129 skipping to change at line 168
! Close the file. ! Close the file.
call handle_err(nf90_close(ncid)) call handle_err(nf90_close(ncid))
! Reopen the file. ! Reopen the file.
call handle_err(nf90_open(FILE_NAME, IOR(nf90_nowrite, nf90_mpiposix), ncid, & call handle_err(nf90_open(FILE_NAME, IOR(nf90_nowrite, nf90_mpiposix), ncid, &
comm = MPI_COMM_WORLD, info = MPI_INFO_NULL)) comm = MPI_COMM_WORLD, info = MPI_INFO_NULL))
! Check some stuff out. ! Check some stuff out.
call handle_err(nf90_inquire(ncid, ndims, nvars, ngatts, unlimdimid, file_form at)) call handle_err(nf90_inquire(ncid, ndims, nvars, ngatts, unlimdimid, file_form at))
if (ndims /= 2 .or. nvars /= 1 .or. ngatts /= 0 .or. unlimdimid /= -1 .or. & if (ndims /= 2 .or. nvars /= 1 .or. ngatts /= 0 .or. unlimdimid /= -1) stop 3
file_format /= nf90_format_netcdf4_classic) stop 3
if (IAND(mode_flag, nf90_netcdf4) .GT. 0) then
if (file_format /= nf90_format_netcdf4_classic) stop 4
else
if (file_format /= nf90_format_classic) stop 5
endif
! Set collective access on this variable. This will cause all ! Set collective access on this variable. This will cause all
! reads/writes to happen together on every processor. Fairly ! reads/writes to happen together on every processor. Fairly
! pointless, in this contexct, but I want to at least call this ! pointless, in this contexct, but I want to at least call this
! function once in my testing. ! function once in my testing.
call handle_err(nf90_var_par_access(ncid, varid, nf90_collective)) call handle_err(nf90_var_par_access(ncid, varid, nf90_collective))
! Read this processor's data. ! Read this processor's data.
call handle_err(nf90_get_var(ncid, varid, data_in, start = start, count = coun t, & call handle_err(nf90_get_var(ncid, varid, data_in, start = start, count = coun t, &
stride = stride)) stride = stride))
! Check the data. ! Check the data.
do x = 1, NX / 4 do x = 1, NX / 4
do y = 1, NY / 4 do y = 1, NY / 4
if (data_in(y, x) .ne. my_rank) stop 4 if (data_in(y, x) .ne. my_rank) stop 6
end do end do
end do end do
! Close the file. ! Close the file.
call handle_err(nf90_close(ncid)) call handle_err(nf90_close(ncid))
end subroutine parallel_io
call MPI_Finalize(ierr)
if (my_rank .eq. 0) print *,'*** SUCCESS!'
contains
! This subroutine handles errors by printing an error message and
! exiting with a non-zero status.
subroutine handle_err(errcode)
use netcdf
implicit none
integer, intent(in) :: errcode
if(errcode /= nf90_noerr) then
print *, 'Error: ', trim(nf90_strerror(errcode))
stop 5
endif
end subroutine handle_err
end program f90tst_parallel end program f90tst_parallel
 End of changes. 10 change blocks. 
35 lines changed or deleted 63 lines changed or added

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