Hello, I think the last sentence for the use of MPI_IN_PLACE in the new manual page is wrong:
> Use the variable MPI_IN_PLACE as the value of both sendbuf and recvbuf. This is the end of line 110 in file https://svn.open-mpi.org/trac/ompi/browser/trunk/ompi/mpi/man/man3/MPI_Allreduce.3 Beside this, thank You for these good MPI-2 manual pages. Bert Wesarg
