A high-level Parallel I/O Library for structured grid applications
For complete documentation, see our website at http://ncar.github.io/ParallelIO/.
The (low-traffic) PIO mailing list is at https://groups.google.com/forum/#!forum/parallelio, send email to the list at [email protected].
The results of our nightly tests on multiple platforms can be found on our cdash site at http://my.cdash.org/index.php?project=PIO.
PIO can use NetCDF (version 4.6.1+) and/or PnetCDF (version 1.9.0+) for I/O. NetCDF may be built with or without netCDF-4 features. NetCDF is required for PIO, PnetCDF is optional.
Ideally, the NetCDF version should be built with MPI, which requires that it be linked with an MPI-enabled version of HDF5. Optionally, NetCDF can be built with DAP support, which introduces a dependency on CURL. Additionally, HDF5, itself, introduces dependencies on LIBZ and (optionally) SZIP.
To build PIO, unpack the distribution tarball and do:
CC=mpicc FC=mpif90 ./configure --enable-fortran && make check install
For a full description of the available options and flags, try:
./configure --help
Note that environment variables CC and FC may need to be set to the MPI versions of the C and Fortran compiler. Also CPPFLAGS and LDFLAGS may need to be set to indicate the locations of one or more of the dependent libraries. (If using MPI compilers, the entire set of dependent libraries should be built with the same compilers.) For example:
export CC=mpicc
export FC=mpifort
export CPPFLAGS='-I/usr/local/netcdf-fortran-4.4.5_c_4.6.3_mpich-3.2/include -I/usr/local/netcdf-c-4.6.3_hdf5-1.10.5/include -I/usr/local/pnetcdf-1.11.0_shared/include'
export LDFLAGS='-L/usr/local/netcdf-c-4.6.3_hdf5-1.10.5/lib -L/usr/local/pnetcdf-1.11.0_shared/lib'
./configure --prefix=/usr/local/pio-2.4.2 --enable-fortran
make check
make install
The typical configuration with CMake can be done as follows:
CC=mpicc FC=mpif90 cmake [-DOPTION1=value1 -DOPTION2=value2 ...] /path/to/pio/source
Full instructions for the cmake build can be found in the installation documentation.