Josh Hursey did the port of Open MPI to CNL.  Here is the config line I have used to build
 on the Cray XT4:

./configure CC=/opt/xt-pe/default/bin/snos64/linux-pgcc CXX=/opt/xt-pe/default/bin/snos64/linux-pgCC F77=/opt/xt-pe/default/bin/snos64/linux-pgf90 FC=/opt/xt-pe/default/bin/snos64/linux-pgf77 CFLAGS=-I/opt/xt-pe/default/include/ CPPFLAGS=-I/opt/xt-pe/default/include/ FCFLAGS=-I/opt/xt-pe/default/include/ FFLAGS=-I/opt/xt-pe/default/include/ LDFLAGS=-L/opt/xt-mpt/default/lib/snos64/ LIBS=-lpct -lalpslli -lalpsutil  --build=x86_64-unknown-linux-gnu --host=x86_64-cray-linux-gnu --with-platform=../contrib/platform/cray_xt3_romio --with-io-romio-flags=--disable-aio build_alias=x86_64-unknown-linux-gnu host_alias=x86_64-cray-linux-gnu --enable-ltdl-convenience --no-recursion --prefix=/na2_apps/OpenMPI/xt-2.0.20/1.2/ompi/P2


On 9/25/07 5:24 AM, "Olli-Pekka Lehto" <> wrote:

Has anyone experimented with building OpenMPI for Cray XT4 with Compute
Node Linux (CNL) OS? My first attempt to build it out-of-the-box using
the '--with-portals-config=xt3' switch failed with the complaint:

In file included from common_portals.c:30:
common_portals_crayxt3.c:19:35: catamount/cnos_mpi_os.h: No such file or

It would be great to get this working because it could potentially allow
for cross-platform compatibility for parallel applications between our
clusters and XT4 in the future.

best regards,
Olli-Pekka Lehto, Systems Specialist, Special Computing, CSC
PO Box 405 02101 Espoo, Finland; tel +358 9 457 2215, fax +358 9 4572302
CSC is the Finnish IT Center for Science,,

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