h5pcc can be used in much the same way as
mpicc by MPICH is used to compile an HDF5 program. These tools take care of specifying on the command line the locations of the HDF5 header files and libraries.
h5cc is for use in serial computing environments;
h5pcc is for parallel environments.
h5pcc subsume all other compiler scripts in that if you have used a set of scripts to compile the HDF5 library, then
h5pcc also use those scripts. For example, when compiling an MPICH program, you use the
mpicc script. If you have built HDF5 using MPICH, then
h5cc uses the MPICH program for compilation.
Some programs use HDF5 in only a few modules. It is not necessary to use
h5pcc to compile those modules which do not use HDF5. In fact, since
h5pcc are only convenience scripts, you can still compile HDF5 modules in the normal manner, though you will have to specify the HDF5 libraries and include paths yourself. Use the
-show option to see the details. For example, running
h5cc for an HDF5 library built using
szlib, all installed in
/usr/local/lib would provide this compile command:
gcc -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE \
-D_BSD_SOURCE -L/usr/local/lib /usr/local/lib/libhdf5_hl.a \
/usr/local/lib/libhdf5.a /usr/local/lib/libsz.a /usr/local/lib/libz.a \
-lm -W1,-rpath -W1,/usr/local/lib [OPTIONS]<compile line>
An example of how to use
h5cc to compile the program
hdf_prog, which consists of the modules
prog2.c and uses the HDF5 shared library, would be as follows.
h5pcc is used in an identical manner.
# h5cc -c prog1.c
# h5cc -c prog2.c
# h5cc -shlib -o hdf_prog prog1.o prog2.o