warp3d_script_linux_openmp

#!/bin/bash
#
#
#    Run WARP3D (Linux) -- OpenMP only + MKL direct/iterative sparse solver
#                          Version built with Intel Fortran
#    ======================================================================
#
#    usage: warp3d_script_linux_Intel_openmp  (number-of-threads) ( < input ) ( > output )
#
#           ( ) -- optional
#
#
echo " "
if [ $# = "0" ]; then
   echo ">> Usage:"; echo " "
   echo " wwarp3d_script_linux_Intel_openmp (<parms>) ( < input ) ( > output )"; echo " "
   echo " <parms>: <no. of threads>  "
   echo "  ( )  implies optional"
   echo " "
   exit 1
fi
echo " "
echo ">> Running WARP3D on Linux ..."
echo "   OpenMP + threaded MKL direct/iterative sparse solver"
echo "   Built with Intel Fortran"
#
if [ -z "$WARP3D_HOME" ]; then
   printf "[ERROR]\n"
   printf "... An environment variable WARP3D_HOME is not set.\n"
   printf "... use Bash shell command: export WARP3D_HOME=... install directory...\n"
   printf "Quitting...\n"
   exit 1
fi
#
#           set executable file name for OpenMP + MKL sparse solver
#           version of warp3d
#
warp3d_exe="$WARP3D_HOME/run_linux/warp3d.omp"
#
if [[ ! -f "$WARP3D_HOME/run_linux/warp3d.omp" ]]
then
    echo " "; echo " "
    echo ">>>> WARP3D executable does not exist:'$warp3d_exe'"
    echo "     No execution possible"
    echo " "; echo " "
    exit
fi
if [[ ! -x "$WARP3D_HOME/run_linux/warp3d.omp" ]]
then
    echo " "; echo " "
    echo ">>>> WARP3D executable must have execute permissions:'$warp3d_exe'"
    echo "     No execution possible"
    echo " "; echo " "
    exit
fi

#
#           set LD_LIBRARY_PATH. Examine the ordering...
#
#           Note: at runtime, WARP3D will use the MKL library
#                 files located in linux_packages/lib included in the
#                 WARP3D distribution.
#                 ** This applies even if you have the
#                 ** Intel compiler system installed on your machine.
#                 We distribute the most current versions of the
#                 the required MKL libraries. These are backwards
#                 compatible with older Intel processors.
#
#                 The WARP3D build (linking) process also used these
#                 files.
#
#                 MKL is available free from Intel.
#
export LD_LIBRARY_PATH=$WARP3D_HOME/linux_packages/lib:$LD_LIBRARY_PATH
#
#
#           set the number of threads for WARP3D execution and
#           for use by the MKL sparse solver. Here we just 
#           assign the same number of threads for both.
#
#           default to 1 thread if user does nothing.
#
export OMP_NUM_THREADS=1
if [ $# = "1"  ]; then
    export OMP_NUM_THREADS=$1
fi
export MKL_NUM_THREADS=$OMP_NUM_THREADS
#
echo ">> Number of threads for parallel execution: " $OMP_NUM_THREADS
echo " "
#
#           make a core file in case WARP3D aborts. make it
#           unwritable so the core dump does not actually get 
#           written.
#
touch core &> /dev/null
chmod ugo-rwx core
#
#           increase the allowable size of the runtime stack. needed
#           for large number of threads
#
ulimit -s 100000
#
#           run WARP3D. The io-redirection files are automatically
#           passed thru the bash shell.
#
$warp3d_exe
#
/bin/rm -f core
exit