On Wed, 2006-07-19 at 14:57 +0200, Paul Heinzlreiter wrote: > After that I tried to compile VTK (http://www.vtk.org) with MPI support > using OpenMPI. > > The compilation process issued the following error message: > > /home/ph/local/openmpi/include/mpi.h:1757:33: ompi/mpi/cxx/mpicxx.h: No > such file or directory
Sven sent instructions on how to best build VTK, but I wanted to explain what you are seeing. Open MPI actually requires two -I options to use the C++ bindings: -I<prefix>/include and -I<prefix>/include/openmpi. Generally, the wrapper compilers (mpicc, mpiCC, mpif77, etc.) are used to build Open MPI applications and the -I flags are automatically added without any problem (a bunch of other flags that might be required on your system may also be added). You can use the "mpiCC -showme" option to the wrapper compiler to see excatly which flags it might add when compiling / linking / etc. Hope this helps, Brian
