I tried to build the MPICH test suite with Intel MPI and it fails here: ../../coll/alltoall1.c:11:25: fatal error: mpicolltest.h: No such file or directory I got here by doing "make dist" in the test/mpi directory of the 3.2rc2 build and then unpacking the tarball mpich-testsuite-3.2rc2.tgz in a separate directory. Since I can find this file in the test tree, I think it is just missing from the "make dist" export list. [jrhammo@bowman-rps build-impi]$ find ~/MPICH/git/ -name mpicolltest.h /storage/home_intel/jrhammo/MPICH/git/test/mpi/include/mpicolltest.h Thanks, Jeff -- Jeff Hammond [email protected] http://jeffhammond.github.io/