Laboratoire de l'Informatique et du Parallélisme » CIAB

#! /bin/bash

#

# ST - 2012-07-03

#

# Start the compute nodes for a configuration.

#

# Get the directory of the script.

SCRIPT_PATH=`dirname $0`

# Get the script name.

SCRIPT_NAME=`basename $0`

# Source the common configuration variables.

. $SCRIPT_PATH/c-i-a-b.common

#

#

# Get the configurations

#

CONFIGURATIONS=`ls $SCRIPT_PATH/$CONST_CONFIGURATIONS_DIR`

CONFIGURATIONS_STRING="{"

for i in $CONFIGURATIONS ; do

  CONFIGURATIONS_STRING="$CONFIGURATIONS_STRING$i|"

done

#

# Check command line arguments.

#

if [ "x$1" == "x" ] ; then

    echo

    echo "Missing parameter. Aborting!"

    echo

    echo "Usage: $SCRIPT_NAME configuration"

    echo

    echo -e "  configuration: one of $CONFIGURATIONS_STRING\b}"

    echo

    echo

    exit 1

fi

#

# Does the configuration exist?

#

CONFIGURATION_FOUND=""

CONFIGURATION=`echo $1 | tr [:upper:] [:lower:]`

for i in $CONFIGURATIONS ; do

    CURRENT_CONFIGURATION=`echo $i | tr [:upper:] [:lower:]`

    if [ $CONFIGURATION == $CURRENT_CONFIGURATION ] ; then

      CONFIGURATION_FOUND=$i

    fi

done

if [ -z $CONFIGURATION_FOUND ] ; then

  echo

  echo

  echo "The configuration \"$1\" does not exist".

  echo -e "The configuration must be one of $CONFIGURATIONS_STRING\b}."

  echo "Aborting!"

  echo

  echo

  exit 1

else

  CONFIGURATION=$CONFIGURATION_FOUND

fi

#

# Source the specific variables for the configuration.

#

. $SCRIPT_PATH/$CONST_CONFIGURATIONS_DIR/$CONFIGURATION/c-i-a-b.config.common

#

# Start the compute-nodes.

#

COMPUTE_NODE_INDEX=1

while [ $COMPUTE_NODE_INDEX -le $COMPUTE_NODE_MAX_INDEX ] ; do

  #

  # Convert the number into a three caracters strings.

  #

  COMPUTE_NODE_INDEX_STRING=$COMPUTE_NODE_INDEX

  while [ ${#COMPUTE_NODE_INDEX_STRING} -lt 3 ] ; do

    COMPUTE_NODE_INDEX_STRING="0$COMPUTE_NODE_INDEX_STRING"

  done

  #

  # Compute the host name.

  #

  CURRENT_HOST_NAME=${COMPUTE_NODE_NAME_PREFIX}${COMPUTE_NODE_INDEX_STRING}

  #

  # Check if the corresponding VM is already running.

  #

  IS_RUNNING=`xm list | grep $CURRENT_HOST_NAME`

  if [ -n "$IS_RUNNING" ] ; then

    echo

    echo The \"$CURRENT_HOST_NAME\" domU already exists.

    echo

  fi

  #

  # Get the CPU data.

  #

  COMPUTE_NODE_CPUS=`sed -n ${COMPUTE_NODE_INDEX},${COMPUTE_NODE_INDEX}p $SCRIPT_PATH/$CONST_CONFIGURATIONS_DIR/$CONFIGURATION/$COMPUTE_NODE_CPUS_FILE`

  COMPUTE_NODE_VCPUS_NUM=0

  COMPUTE_NODE_CPUS_LIST=""

  for i in $COMPUTE_NODE_CPUS ; do

    if [ -z $COMPUTE_NODE_CPUS_LIST ] ; then

      COMPUTE_NODE_CPUS_LIST=$i

    else

      COMPUTE_NODE_CPUS_LIST="$COMPUTE_NODE_CPUS_LIST,$i"

    fi

    COMPUTE_NODE_VCPUS_NUM=$((COMPUTE_NODE_VCPUS_NUM + 1))

  done

  #

  # Check that the configuration file exists.

  #

  if [ ! -f $CONST_XEN_CONFIG_DIR/$CURRENT_HOST_NAME.cfg ] ; then

    echo

    echo

    echo "No configuration file for \"$CURRENT_HOST_NAME\."

    echo "Aborting!"

    echo

    echo

    xm list

    exit 1

  fi

  #

  # Start the virtual machine

  #

  xm create $CONST_XEN_CONFIG_DIR/$CURRENT_HOST_NAME.cfg

  #

  # Wait until the virtual machine has started

  #

  IS_RUNNING=""

  while [ -z "$IS_RUNNING" ]

    do

      IS_RUNNING=`xm list | grep $CURRENT_HOST_NAME`

      sleep 1

  done # End while

  #

  # Pin the VCPUs to "real" CPUs.

  #

  VCPU_INDEX=0

  for i in $COMPUTE_NODE_CPUS_LIST ; do

    xm vcpu-pin $CURRENT_HOST_NAME $VCPU_INDEX $i

    VCPU_INDEX=$((VCPU_INDEX + 1))

  done # End for i

  COMPUTE_NODE_INDEX=$((COMPUTE_NODE_INDEX + 1))

done # End main loop.

#

exit 0