gm-init.d

gm-init.d (text/plain), 3.32 KB, created by Justin Bronder (RETIRED) on 2007-07-05 21:14:45 UTC

#!/sbin/runscript
# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

depend() {
    need net	
    after ssh
    before pbs_mom
}

check_torque() {
  local have_myri=0
  einfo "Checking with Torque to see if we have Myrinet"
  hostname=$(hostname -s)
  if [ ! -x /usr/bin/pbsnodes ]; then
      ewarn "/usr/bin/pbsnodes cannot be executed!  Assuming no Myrinet"
      have_myri=0
  elif [ -n "$(/usr/bin/pbsnodes -a ${hostname} | egrep "${CHECK_TORQUE_REGEXP}")" ]; then
      have_myri=1
  else
      have_myri=0
  fi

  if [[ $have_myri -eq 0 ]]; then
      einfo "Host doesn't have Myrinet, skipping"
      return 0
  fi
  return 1
}

    
 
start() {
    ebegin "Starting GM Driver"
    if [[ $USE_CHECK_TORQUE -ne 0 ]]; then
      check_torque
      if [[ $? -eq 0 ]]; then
        eend 0
        return 0
      fi
    fi

    if [ ! -x "/usr/bin/gm_board_info" ]; then
        ewarn "GM Driver userland tools missing"
        eend 1
        return 1
    fi

    /sbin/modprobe gm &>/dev/null
    rc=${?}	
    if [[ ${rc} -ne 0 ]]; then
        eend ${rc} "GM Module failed to load"
    else
        # We may have to wait a moment for these to appear
        if [ ! -r /dev/gmp0 ]; then
            sleep 2;
        fi
        # Doesn't matter if they don't though, you could use
        # the udev rules in /etc/gm to avoid this.
        if [ ! -r /dev/gmp0 ]; then
            ewarn "/dev/gm* devices were not created, so I'll do it now"
            for i in 0 1 2 3 4 5 6 7 ; do
                mknod /dev/gm$i c 220 $(expr $i "*" 2) \
                    && chmod --verbose 666 /dev/gm$i > /dev/null 2>&1
                mknod /dev/gmp$i c 220 $(expr $i "*" 2 + 1) \
                    && chmod --verbose 600 /dev/gmp$i > /dev/null 2>&1
            done
        fi
        hostname=$(hostname -f)
        /usr/bin/gm_set_name --host-name=$hostname >> /dev/null 2>&1
        rc=${?}
        if [[ ${rc} -ne 0 ]]; then
            ewarn "Failed to set the board's hostname"
        fi

        # Boot the mapper if requested
        if [[ $USE_GM_MAPPER -ne 0 ]]; then
            einfo "Starting gm_mapper"
            start-stop-daemon --start -p /var/run/gm_mapper.pid --exec /opt/gm/sbin/gm_mapper -- \
                --map-file-0=/var/run/gm_map.0 --daemon-pid-file=/var/run/gm_mapper.pid
            rc=$?
            if [[ ${rc} == 0 ]]; then
                einfo "Waiting for gm_mapper to finish, (10s)"
                for ((i=0;i<10;i++)); do
                    sleep 1
                    echo -n " . "
                done
            else 
                ewarn "gm_mapper failed to start"
            fi
        fi
        eend ${rc}
    fi
    return ${rc}

}

stop() {
    ebegin "Stopping GM Driver"
    if [[ $USE_CHECK_TORQUE -ne 0 ]]; then
      check_torque
      if [[ $? -eq 0 ]]; then
        eend 0
        return 0
      fi
    fi

    local rc=0
    if [[ $USE_GM_MAPPER -ne 0 ]] && [ -n "$(pidof gm_mapper)" ]; then
        start-stop-daemon --stop -p /var/run/gm_mapper.pid
        rc=$?
        if [[ $rc -ne 0 ]]; then
            ewarn "Stopping gm_mapper failed"
        fi
    fi
    if [ -n "$( lsmod | grep -v 'Module' | awk '/^gm /{ print $1 }')" ]; then
        /sbin/modprobe -r gm &>/dev/null
        rc=${?}
        eend ${rc} "GM Module failed to unload"
    fi
    return ${rc}
}
# vim:ts=4