cuda_self_help

#! /bin/bash
# Detects available hardware and various settings to provide help for
# setting up GPGPU with CUDA, required for executing code on a GPU.

# Note that nvidia-settings may not exist in all implementations
# (e.g. with the standard install on MacOS).

echo
echo "Welcome to the AMUSE self-help for setting up GPGPU with CUDA."
echo
echo -n "Checking whether you have the NVIDIA graphics driver... "
which nvidia-settings >& /dev/null
if [ $? -eq 0 ]; then
    echo "ok"
    echo -n "Checking the NVIDIA graphics driver version... "
    echo `nvidia-settings -q NvidiaDriverVersion | gawk '{ORS = " " ; print $4}'`
else
    echo "no"
    echo "    Couldn't find the nvidia-settings utility (used to configure "
    echo "    the NVIDIA graphics driver). Do you have an NVIDIA GPU card?"
    echo " "
    echo " "
fi
echo -n "Checking 32/64 bit... "
uname -i | grep '64' >& /dev/null
if [ $? -eq 0 ]; then
    echo "64 bit hardware platform."
    X_BITS_LIB="lib64"
else
    echo "32 bit hardware platform."
    X_BITS_LIB="lib"
fi
echo

echo "Checking relevant environment variables... "
echo -n "Searching LD_LIBRARY_PATH... "
found=0
IFS=$':'
for one_path in $LD_LIBRARY_PATH
do
    if [ -e $one_path/libcudart.so ]; then
        echo "found libcudart.so in directory " $one_path
        found=1
    fi
done
if [ $found == 0 ]; then
    echo "libcudart.so not found in LD_LIBRARY_PATH. Do either of:"
    echo "   bash> export LD_LIBRARY_PATH=/path/to/cudalib:\$LD_LIBRARY_PATH"
    echo "   csh> setenv LD_LIBRARY_PATH /path/to/cudalib:\$LD_LIBRARY_PATH"
    exit 1
fi

echo -n "Checking CUDA_SDK...         "
if [ -n "$CUDA_SDK" ]; then
    if [ -d $CUDA_SDK/common/inc ]; then
        echo "ok"
    else
        echo "set, but unable to find CUDA SDK path. please set the CUDA_SDK "
        echo "    variable to the directory that holds the common/inc subdirectory, "
        echo "    typically: /path/to/cudasdk/C"
        exit 1
    fi
else
    if [ -d /disks/koppoel1/CUDA23/cudasdk/C/common/inc ]; then
        echo "not set, but default CUDA SDK path exists: ok"
    else
        echo "unable to find CUDA SDK path. Please set the CUDA_SDK variable "
        echo "  to the directory where you installed the CUDA SDK. Do either of:"
        echo "     bash> export CUDA_SDK=/path/to/cudasdk"
        echo "     csh> setenv CUDA_SDK /path/to/cudasdk"
        exit 1
    fi
fi

echo -n "Checking CUDA_TK...          "
if [ -n "$CUDA_TK" ]; then
    if [ -d $CUDA_TK/include ]; then
        echo "ok"
    else
        echo "set, but unable to find CUDA TK path. please set the CUDA_TK "
        echo "    variable to the directory that holds the include subdirectory, "
        echo "    typically: /path/to/cuda"
        exit 1
    fi
else
    if [ -d /disks/koppoel1/CUDA23/cuda/include ]; then
        echo "not set, but default CUDA TK path exists: ok"
        CUDA_TK=/disks/koppoel1/CUDA23/cuda
    else
        echo "unable to find CUDA TK path. Please set the CUDA_TK variable "
        echo "  to the directory where you installed the CUDA TK. Do either of:"
        echo "     bash> export CUDA_TK=/path/to/cuda"
        echo "     csh> setenv CUDA_TK /path/to/cuda"
        exit 1
    fi
fi

echo -n "Checking CUDA_LIBDIRS...     "
if [ -n "$CUDA_LIBDIRS" ]; then
    if [ -e $CUDA_LIBDIRS/libcudart.so ]; then
        echo "ok"
    else
        echo "set, but unable to find the libraries. please set the CUDA_LIBDIRS "
        echo "    variable to the directory that holds the libcudart.so library, "
        echo "    typically: /path/to/cuda/$X_BITS_LIB"
        exit 1
    fi
else
    if [ -e $CUDA_TK/$X_BITS_LIB/libcudart.so ]; then
        echo "not set, but found libraries in default path: ok"
    else
        echo "unable to find the CUDA libraries. Please set the CUDA_LIBDIRS variable "
        echo "  to the directory where the CUDA libraries reside. Do either of:"
        echo "     bash> export CUDA_LIBDIRS=/path/to/cuda/$X_BITS_LIB"
        echo "     csh> setenv CUDA_LIBDIRS /path/to/cuda/$X_BITS_LIB"
        exit 1
    fi
fi

echo -n "Checking CUDA_LIBS...        "
if [ -n "$CUDA_LIBS" ]; then
    echo $CUDA_LIBS | grep 'lcudart' >& /dev/null
    if [ $? -eq 0 ]; then
        echo "ok"
    else
        echo "set, but cudart library not included. Add -lcudart to CUDA_LIBS"
        exit 1
    fi
else
    echo "not set, using default: ok"
fi
echo
echo "Everything seems ok!"
echo "Now try building for example Octgrav and run the nosetests (from AMUSE root directory),"
echo "but first re-initialize mpd (or it will remember its original environment):"
echo "> mpdallexit"
echo "> mpd &"
echo "> make octgrav.code"
echo "> nosetests test/codes_tests/test_octgrav.py"
echo
echo "If this fails, please contact us at: vriesn (at) strw.leidenuniv.nl or"
echo "join us on the #amuse channel on irc.freenode.net."
echo