HP-MPI Version 2.2 for HP-UX Release Note

HP-MPI V2.2 for HP-UX Release Note

What’s in This Version

Description of Features

The following section provides brief descriptions of the new features included in this release.

For more information on HP-MPI, refer to the HP-MPI User’s Guide available at

http://docs.hp.com.

C++ bindings

HP-MPI 2.2 supports C++ bindings as described in the MPI-2 Standard. If compiling and

linking with the mpiCC command, no additional work is needed to include and use the

bindings. You can include either mpi.h or mpiCC.h in your C++ source files.

The bindings provided by HP-MPI are an interface class, calling the equivalent C bindings. To

profile your application, users should profile the equivalent C bindings.

If you build without the mpiCC command, you will need to include -lmpiCC to resolve C++

references.

If you want to use an alternate libmpiCC.a with mpiCC, use the -mpiCClib <LIBRARY>

option. A 'default' g++ ABI compatible library is provided for each architecture except Alpha.

Non-g++ ABI compatible C++ compilers The C++ library provided by HP-MPI,

libmpiCC.a, was built with aCC.

If you are using a C++ compiler which is not g++ ABI compatible, you must build your own

libmpiCC.a and include this in your build command. The sources and Makefiles to build an

appropriate library are located in /opt/mpi/lib/hpux64/mpiCCsrc/* /scratch/libmpicc.

To build your private version of libmpiCC.a and include it in the builds using mpiCC:

1. Copy the files from /opt/mpi/lib/hpux64/mpiCCsrc/* /scratch/libmpicc to a

working directory:

% cp /opt/mpi/lib/hpux64/mpiCCsrc/* /scratch/libmpicc

% cd /scratch/libmpicc

2. Edit the Makefile and define your CXX and MPI_ROOT to the correct locations.

3. Perform the make. This should build libmpiCC.a in your working directory:

% make

g++ -c intercepts.cc -I/opt/hpmpi/include -DHPMP_BUILD_CXXBINDING

g++ -c mpicxx.cc -I/opt/hpmpi/include -DHPMP_BUILD_CXXBINDING

ar rcs libmpiCC.a intercepts.o mpicxx.o

4. Link your application with the -mpiCClib <LIBRARY> option, using the library you

created.