gsell
5a588415d0
- read_canonicalviewf.f90 read_setnparticlesf.f90, read_setviewf.f90, read_stridedf.f90 implemented
59 lines
1.8 KiB
Fortran
59 lines
1.8 KiB
Fortran
!
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! Copyright (c) 2006-2015, The Regents of the University of California,
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! through Lawrence Berkeley National Laboratory (subject to receipt of any
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! required approvals from the U.S. Dept. of Energy) and the Paul Scherrer
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! Institut (Switzerland). All rights reserved.!
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!
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! License: see file COPYING in top level of source distribution.
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!
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include 'H5hut.f90'
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program read_stridedf
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use H5hut
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implicit none
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include 'mpif.h'
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! the file name we want to read
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character (len=*), parameter :: FNAME = "example_strided.h5"
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integer*8, parameter :: DEFAULT_VERBOSITY = H5_VERBOSE_DEFAULT
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integer*8 :: verbosity = DEFAULT_VERBOSITY
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integer :: comm, comm_rank, comm_size, ierr
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integer*8 :: file, status
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real*8, allocatable :: data(:)
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integer*8 :: nparticles
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! initialize MPI & H5hut
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comm = MPI_COMM_WORLD
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call mpi_init (ierr)
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call mpi_comm_rank (comm, comm_rank, ierr)
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call mpi_comm_size (comm, comm_size, ierr)
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call h5_abort_on_error ()
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call h5_set_verbosity_level (verbosity)
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! open file and go to first step
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file = h5_openfile (FNAME, H5_O_RDONLY, H5_PROP_DEFAULT)
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status = h5_setstep (file, 1_8)
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! Get number of particles in datasets and allocate memory
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nparticles = h5pt_getnpoints (file)
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allocate (data (6*nparticles))
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! set number of particles and memory stride
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status = h5pt_setnpoints_strided (file, nparticles, 6_8)
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! read data
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status = h5pt_readdata_r8 (file, "x", data(1:))
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status = h5pt_readdata_r8 (file, "y", data(2:))
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status = h5pt_readdata_r8 (file, "z", data(3:))
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status = h5pt_readdata_r8 (file, "px", data(4:))
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status = h5pt_readdata_r8 (file, "py", data(5:))
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status = h5pt_readdata_r8 (file, "pz", data(6:))
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! cleanup
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status = h5_closefile (file)
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deallocate (data)
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call mpi_finalize (ierr)
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end program read_stridedf
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