Hi I faced a warning "declaration ‘struct MPI::Grequest_intercept_t’ does not declare anything" using openmpi 1.2.4 (compiling under Fedora 10 with mpic++ wrapper over gcc 4.3.2) and don't know how to solve it. Browsing the Internet i've found an advise just to ignore it, but i don't think it is impossible to solve it in another way.
I have a correct working single thread program. Then i just include mpi.h, compile and get this: In file included from /usr/include/openmpi/1.2.4-gcc/openmpi/ompi/mpi/cxx/mpicxx.h:246, from /usr/include/openmpi/1.2.4-gcc/mpi.h:1783, from /home/user/NetBeansProjects/Correlation_orig/Correlation/Correlation.cpp:2: /usr/include/openmpi/1.2.4-gcc/openmpi/ompi/mpi/cxx/request_inln.h:347: warning: declaration ‘struct MPI::Grequest_intercept_t’ does not declare anything The program is still works correctly but this warning makes me nervous. Sincerely yours, Alexey.