mympi

#!/bin/bash

# This scripts creates mpi_amdados.cpp file on the fly and compiles
# pure MPI version of Amdados application. Recall, we cannot create
# permanent *.cpp files for MPI version to avoid any interference
# with CMake building framework. Options:
# -d : debugging mode; -r : release mode; -l : launch applications
# after building.

# Blank lines.
for i in {1..5}; do echo ""; done

# Make build directory.
mkdir -p build
# Remove the old executable.
/bin/rm -f build/mpi_amdados
# Build Allscale version of Amdados application, if does not exist.
if [ ! -f build/app/amdados ]; then
    bash ./standard.build.sh
fi

# Generate cpp file containing main() function.
CWD=$(pwd)
cat > build/mpi_amdados.cpp << EOF
#include "${CWD}/code/app/mpi_src/mpi_simulation.h"
int main(int argc, char ** argv) {
    return mpi_main(&argc, &argv);
}
EOF

# By default we choose debugging mode and do not run the application.
LAUNCH=false
DEBUG=false;

# Parse the input arguments.
while getopts ":drl" opt; do
    case $opt in
        d) DEBUG=true  ;;
        r) DEBUG=false ;;
        l) LAUNCH=true ;;
        \?) echo "Invalid option: -$OPTARG" >&2 ;;
    esac
done

# Set up the mode-dependent settings.
if ${DEBUG} ; then
    echo "Compiling (and running) the application in 'debug' mode"
    CONF="-g3 -O0 -DDEBUG -D_DEBUG"
else
    echo "Compiling (and running) the application in 'release' mode"
    CONF="-O2 -DNDEBUG"
fi

# Compile.
mpicxx -DAMDADOS_PLAIN_MPI -std=c++14 -Wall -pedantic -Wextra -Wconversion \
        ${CONF} -o build/mpi_amdados build/mpi_amdados.cpp

# Run.
if ${LAUNCH} ; then
    if [[ $(uname) == "Linux" ]]; then
        # I have "mpich" on Linux blade, and mpich tolerates overcommit.
        NUMPROC=$(getconf _NPROCESSORS_ONLN)
    elif [[ $(uname) == "Darwin" ]]; then
        # I have "open-mpi" on Mac OS, and open-mpi wants to know the exact
        # number of cores (not processors!) - overcommit is not tolerated.
        NUMPROC=$(system_profiler SPHardwareDataType | \
                    grep 'Total Number of Cores' | awk '{print $5}')
    fi
    if ${DEBUG} ; then
        if [[ $(uname) == "Linux" ]]; then
            # I have "mpich" on Linux blade.
            mpirun -np ${NUMPROC} -f host_file xterm -e gdb build/mpi_amdados
        elif [[ $(uname) == "Darwin" ]]; then
            # I have "open-mpi" on Mac OS.
            mpirun -np ${NUMPROC} --hostfile host_file \
                xterm -e /usr/bin/lldb build/mpi_amdados
        fi
    else
        if [[ $(uname) == "Linux" ]]; then
            # I have "mpich" on Linux blade.
            mpirun -np ${NUMPROC} -f host_file build/mpi_amdados
        elif [[ $(uname) == "Darwin" ]]; then
            # I have "open-mpi" on Mac OS.
            mpirun -np ${NUMPROC} --hostfile host_file build/mpi_amdados
        fi
    fi
fi

# Blank lines.
for i in {1..3}; do echo ""; done