Difference between revisions of "HOWTO use AmpTools on the JLab farm with MPI"
From GlueXWiki
Line 3: | Line 3: | ||
On the ifarm you can load the MPI module with | On the ifarm you can load the MPI module with | ||
− | + | module load mpi/openmpi-4.0.1 | |
providing the binaries below to compile (mpicxx) and run (mpirun) MPI commands | providing the binaries below to compile (mpicxx) and run (mpirun) MPI commands | ||
− | + | which mpicxx | |
− | + | which mpirun | |
=== AmpTools Compilation MPI === | === AmpTools Compilation MPI === |
Revision as of 15:14, 12 January 2022
Contents
Load MPI module
On the ifarm you can load the MPI module with
module load mpi/openmpi-4.0.1
providing the binaries below to compile (mpicxx) and run (mpirun) MPI commands
which mpicxx which mpirun
AmpTools Compilation MPI
This example was done in csh on ifarm1901
1) Download latest AmpTools release
git clone git@github.com:mashephe/AmpTools.git
2) Set AMPTOOLS directory
setenv AMPTOOLS_HOME $PWD/AmpTools/ setenv AMPTOOLS $AMPTOOLS_HOME/AmpTools/
3) Put root-config in your path (assumes ROOTSYS set by some other setup script)
setenv PATH $ROOTSYS/bin:$PATH
4) Build main AmpTools library with MPI support (temporary branch to support openmpi version 4 on ifarm)
cd $AMPTOOLS/AmpTools git checkout jrs_fixamp make MPI=1
5) Build fitMPI executable with MPI support (currently on branch)
cd $HALLD_SIM_HOME/src/programs/AmplitudeAnalysis/fitMPI/ scons -u install
Performing Fits Interactively
The fitMPI executable is run with mpirun
> mpirun N fitMPI -c YOURCONFIG.cfg
where N is the number of parallel processes to use in the fit and YOURCONFIG.cfg is your usual config file. Note: additional command line parameters can be used as well, as needed.