gen_in_values_list () {
    host=`hostname -I`
    host=`echo $host` #trim whitespace
    local f1_base=$1
    local f2_base=$2
    f_pbs=""
    f_idx=0
    f_var="${f1_base}${f_idx}"
    while [ -n "${!f_var}" ]; do
        f_location_var="${f2_base}${f_idx}"
	f_path=` find / -name ${!f_var}`
        f_pbs="${f_pbs}${!f_var}@$host:$f_path," #\"${!f_location_var}\")"
        f_idx=$((f_idx+1))
    	f_var="${f1_base}${f_idx}"
    done
    f_path=` find / -name $EXECUTABLE`
    f_pbs=${f_pbs}$EXECUTABLE@$host:$f_path
    echo ${f_pbs}
}

gen_out_values_list () {
    host=`hostname -I`
    host=`echo $host` #trim whitespace
    local f1_base=$1
    local f2_base=$2
    f_pbs=""
    f_idx=0
    f_var="${f1_base}${f_idx}"
    while [ -n "${!f_var}" ]; do
        f_location_var="${f2_base}${f_idx}"
        f_pbs="${f_pbs}${!f_var}@$host:$PWD/${!f_var}," #\"${!f_location_var}\")"
        f_idx=$((f_idx+1))
    	f_var="${f1_base}${f_idx}"
    done
    echo ${f_pbs::-1} #delete trailing comma
}

get_jobdescription_type () {
    echo "pbs"
}

gen_job_description () { 
    local pbs_f=$1
    # CPUS overrides NODES/PPN way
    if [ -n "$CPUS" ]; then 
        NODES=1
        PPN=$CPUS
    else
        [ -z "${NODES}" ] && NODES=1
        [ -z "${PPN}" ] && PPN=1
    fi

    [ -n "$WALLTIME" ] && _WALLTIME="#PBS -l walltime=${WALLTIME}"
    [ -n "$MEMORY" ] && _MEMORY="#PBS -l mem=${MEMORY}"
    [ -n "$MAILTO" ] && _MAILTO="#PBS -M ${MAILTO}"

cat <<END | sed '/^$/d' > $pbs_f
#!/bin/bash

#PBS -N ${JOBNAME}
${_WALLTIME}
#PBS -l nodes=${NODES}:ppn=${PPN}
${_MEMORY}
${_MAILTO}
END
[ -n "$PBS_EXTRA_HEADER" ] && echo "$PBS_EXTRA_HEADER" >> $pbs_f
echo -e "\ncd \$PBS_O_WORKDIR\n" >> $pbs_f
[ -n "$PBS_EXTRA_COMMANDS" ] && echo "$PBS_EXTRA_COMMANDS" >> $pbs_f
cat $EXECUTABLE >> $pbs_f
}

jobdescription_gen_params () {
cat <<END
###############################################################
#          GENERAL GRID JOB REQUIREMENTS FOR PBS              #
###############################################################

# Define number of nodes and processors per node to use.
NODES=2
PPN=2

# Walltime. Cluster queue defaults will be used if not specified. 
WALLTIME="1:00:00"

# Required job memory per processor. Cluster queue defaults will be used if not specified.
# Acceptable memory size units are: b, kb, mb, gb, tb
MEMORY="1gb"

# Send notification e-mails to specified address
MAILTO="test@moldyngrid.org"

# Notification parameters (affected only with MAILTO)
# a - aborted
# b - begun
# e - terminated
NOTIFY="abe"

END
}