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$Header: /cvsroot/nco/nco/doc/mpi.txt,v 1.19 2009/01/13 23:17:13 zender Exp $ -*-text-*-
Installing an MPI Environment for NCO:
Choose an MPI distribution: LAM-MPI (deprecated), MPICH, MPICH2
(recommended), Open MPI, and PPE (AIX only)
MPI distribution-specific instructions are given below, in
alphabetical order of distribution for these parallel environments:
LAM, MPICH, MPICH2, Open MPI, and PPE (AIX only).
Support for Open MPI is new.
No other MPI environments are supported.
Test NCO once one of these environments is installed.
************************************************************************
Determining the Parallel Environment
************************************************************************
Linux in particular has a large number of available MPI environments.
Determining which environment is active may be necessary.
The active MPI environment provides a C-compiler wrapper (usually
called mpicc) which simplifies building C programs like NCO.
mpicc --version # LAM, MPICH, MPICH2: C Compiler/version
mpicxx --version # MPICH2 (only): C++ Compiler/version
mpiCC --version # LAM-MPI, Open MPI: C++ Compiler/version
mpic++ --version # LAM-MPI, Open MPI: C++ Compiler/version
mpicc --showme # LAM-MPI, Open MPI: C compilation switches
mpiCC --showme # LAM-MPI, Open MPI: C++ compilation switches
mpic++ --showme # LAM-MPI, Open MPI: C++ compilation switches
mpcc -v # PPE (only): C compilation switches
mpCC -v # PPE (only): C++ compilation switches
************************************************************************
Testing NCO in a parallel environment
************************************************************************
1. Start any required process management daemon
Typically, these are lamd (LAM), mpd (MPICH/MPICH2), and pmd (PPE).
If regression test results are unpredictable and/or terrible, try
re-starting the process management daemon.
2. Run NCO regression tests in parallel mode
These two commands are equivalent (Makefile translates the first):
make MPI_PRC=3 tst
~/nco/bm/nco_bm.pl --dbg=0 --mpi=3 --regress --udp
************************************************************************
MPI Distribution-specific Instructions
************************************************************************
LAM Instructions:
Up-to-date versions of LAM-MPI are distributed in RPM and Deb formats.
(LAM features are included in Open MPI)
0. Remove LAM-MPI packages
sudo aptitude remove lam4c2 lam4-dev lam-mpidoc lam-runtime
sudo rpm -e lam
sudo yum remove lam
1. Install LAM-MPI packages
sudo aptitude install lam4c2 lam4-dev lam-mpidoc lam-runtime
sudo rpm -i lam-7.0.6-3.i386.rpm
2. Start lamd if not already running:
lamboot -v # Start lamd in verbose mode
3. End lamd
lamwipe # Kill lamd
************************************************************************
MPICH (version 1, http://www-unix.mcs.anl.gov/mpi/mpich) Instructions:
1. Install MPICH packages
sudo aptitude install mpich mpich-common
sudo rpm -i mpich mpich-doc
sudo yum install mpich mpich-doc
sudo rpm -i mpich-1.2.5.2-1mdk.i586.rpm
2. Test mpich version:
mpichversion # Report MPICH1 version and device (ch_p4 indicates GB Ethernet)
************************************************************************
MPICH2 (i.e., MPICH version 2, http://www-unix.mcs.anl.gov/mpi/mpich2) Instructions:
0. Remove MPICH2 packages
sudo aptitude remove libmpich2-1.0 mpich2-doc mpich2 mpich2-mpd mpich2-dev
1. Install MPICH2 (requires python 2.3 or 2.4)
wget http://torvalds.cs.mtsu.edu/~zach/debian/1.0.2p1/libmpich2-1.0_1.0.2p1-2_i386.deb
wget http://torvalds.cs.mtsu.edu/~zach/debian/1.0.2p1/mpich2-doc_1.0.2p1-2_i386.deb
wget http://torvalds.cs.mtsu.edu/~zach/debian/1.0.2p1/mpich2_1.0.2p1-2_i386.deb
wget http://torvalds.cs.mtsu.edu/~zach/debian/1.0.2p1/mpich2-mpd_1.0.2p1-2_i386.deb
wget http://torvalds.cs.mtsu.edu/~zach/debian/1.0.2p1/mpich2-dev_1.0.2p1-2_i386.deb
sudo aptitude install python2.3 python2.3-xml
cd ${DATA}/tmp
sudo dpkg --install \
libmpich2-1.0_1.0.2p1-2_i386.deb \
mpich2-doc_1.0.2p1-2_i386.deb \
mpich2_1.0.2p1-2_i386.deb \
mpich2-mpd_1.0.2p1-2_i386.deb \
mpich2-dev_1.0.2p1-2_i386.deb
cd -
2. Install .mpd.conf in ${HOME} or set START="yes" in /etc/default/mpd
3. Start mpd if not already running:
mpd & # Start MPD
mpdtrace # Test MPD
mpdallexit # Exit MPD
mpich2version # Report MPICH2 version
************************************************************************
Open MPI Instructions:
Up-to-date versions of LAM-MPI are distributed in RPM and Deb formats.
0. Remove Open MPI packages
sudo aptitude remove openmpi_bin
1. Install Open MPI packages
sudo aptitude install openmpi-bin openmpi-doc openmpi-dev
************************************************************************
Parallel Programming Environment (PPE) (AIX only):
1. poe requires a hostfile. hostfile defaults to ./host.list.
Create host.list with, e.g.,
echo ${HOST} > ./host.list
2.
poe -hostfile=~/nco/bld/host.list -node=1 -tasks_per_node=3 $MY_BIN_DIR/mpncwa -O -D 3 -p ${HOME}/nco/data in.nc ~/foo.nc
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