cores.m4

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AC_DEFUN([CHECK_CORES],
[
    AC_MSG_CHECKING([for number of cores])
    NUM_CORES=1
    FOUND_CORES=no
    
    if test -f /proc/cpuinfo; then
        # Looks like a Linux system
        NUM_CORES=`cat /proc/cpuinfo  | grep -c processor`
        FOUND_CORES=yes
    fi

    if test -x /usr/sbin/psrinfo; then
        # Looks like a Solaris system
        NUM_CORES=`LC_MESSAGES=C /usr/sbin/psrinfo -v | grep -c on-line`
        FOUND_CORES=yes
    fi

    if test -x /usr/sbin/system_profiler; then
        # Looks like a MacOSX system
        NUM_CORES=`/usr/sbin/system_profiler -detailLevel full SPHardwareDataType | grep 'Cores' | awk  '{print [$]5}'`
        FOUND_CORES=yes
    fi

    if test "x$build_os" = xwindows; then
        NUM_CORES=4
    fi

    # For c/c++ code we run twice as many concurrent build
    # jobs than we have cores, otherwise we will stall on io.
    CONCURRENT_BUILD_JOBS=`expr $NUM_CORES \* 2`

    if test "x$FOUND_CORES" = xyes; then
        AC_MSG_RESULT([$NUM_CORES])
    else
        AC_MSG_RESULT([could not detect number of cores, defaulting to 1!])
    fi 

])

AC_DEFUN([CHECK_MEMORY_SIZE],
[
    AC_MSG_CHECKING([for memory size])
    # Default to 1024MB
    MEMORY_SIZE=1024
    FOUND_MEM=no
    
    if test -f /proc/cpuinfo; then
        # Looks like a Linux system
        MEMORY_SIZE=`cat /proc/meminfo | grep MemTotal | awk '{print [$]2}'`
        MEMORY_SIZE=`expr $MEMORY_SIZE / 1024`
        FOUND_MEM=yes
    fi

    if test -x /usr/sbin/prtconf; then
        # Looks like a Solaris system
        MEMORY_SIZE=`/usr/sbin/prtconf | grep "Memory size" | awk '{ print [$]3 }'`
        FOUND_MEM=yes
    fi

    if test -x /usr/sbin/system_profiler; then
        # Looks like a MacOSX system
        MEMORY_SIZE=`/usr/sbin/system_profiler -detailLevel full SPHardwareDataType | grep 'Memory' | awk  '{print [$]2}'`
        MEMORY_SIZE=`expr $MEMORY_SIZE \* 1024`
        FOUND_MEM=yes
    fi

    if test "x$build_os" = xwindows; then
        MEMORY_SIZE=`systeminfo | grep 'Total Physical Memory:' | awk '{ print [$]4 }' | sed 's/,//'`
        FOUND_MEM=yes    
    fi

    if test "x$FOUND_MEM" = xyes; then
        AC_MSG_RESULT([$MEMORY_SIZE MB])
    else
        AC_MSG_RESULT([could not detect memory size defaulting to 1024MB!])
    fi 
])