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#!/bin/sh -
#RCUPDATE:2 3 4:95:This line is required for script management
# description: MOSIX is am extension of the operating system,
# supporting scalable and transparent cluster computing.
#
# mosix Script to stop/start MOSIX
#
# Author: Amnon Shiloh
. /etc/rc.d/config/functions
SERVICE="mosix"
opts="start stop status restart"
mosix_stop() {
echo 0 > /proc/mosix/admin/mospe
rm -f /var/lock/subsys/mosix
}
mosix_start() {
if [ -s /etc/overheads -a -f /proc/mosix/admin/overheads ]
then
/bin/grep -v '^#' /etc/overheads > /proc/mosix/admin/overheads
fi
if [ -s /etc/mfscosts -a -f /proc/mosix/admin/mfscosts ]
then
/bin/grep -v '^#' /etc/mfscosts > /proc/mosix/admin/mfscosts
fi
a1=
[ -s /etc/mospe ] && a1="-p `cat /etc/mospe`"
a2=
[ -s /etc/mosgates ] && a2="-g `cat /etc/mosgates`"
/sbin/setpe -W $a1 $a2 -f /etc/mosix.map
touch /var/lock/subsys/mosix
}
alarm() {
t=$2
while :
do
case "$t" in 0) break ;; esac
sleep 1
t=$(($t-1))
done
kill -1 $1
exit 0
}
# See how we were called.
start() {
eecho "Initializing MOSIX"
if [ ! -f /etc/mosix.map ]
then
echo You have no MOSIX configuration - please edit yours now:
echo -n "Editor to use [q to quit] - [vi] :- "
trap 'echo Timed-Out ; exit 1' 1
alarm $$ 120 &
killer=$!
read editor
kill $killer
trap ''
case "$editor" in [qQ]) exit ;;
"") editor=/usr/bin/vi
[ -f $editor ] || editor=/bin/vi
;;
esac
echo "# MOSIX CONFIGURATION" > /etc/mosix.map
echo "# ===================" >> /etc/mosix.map
echo "#" >> /etc/mosix.map
echo "# Each line should contain 3 fields, mapping IP addresses to MOSIX node-numbers:" >> /etc/mosix.map
echo "# 1) first MOSIX node-number in range." >> /etc/mosix.map
echo "# 2) IP address of the above node (or node-name from /etc/hosts)." >> /etc/mosix.map
echo "# 3) number of nodes in this range." >> /etc/mosix.map
echo "#" >> /etc/mosix.map
echo "# MOSIX-# IP number-of-nodes" >> /etc/mosix.map
echo "# ============================" >> /etc/mosix.map
$editor /etc/mosix.map
echo
while :
do
echo "If this node's standard IP address is not part of the table that"
echo "you just edited, because MOSIX uses a different or separate network,"
echo "you need to type this node's MOSIX-number now."
echo
/bin/echo -n "Otherwise please press only <Enter> :- "
read me
case "$me" in "") /bin/rm -f /etc/mospe ; break ;;
[1-9] | [1-9][0-9] | [1-9][0-9][0-9] | \
[1-9][0-9][0-9][0-9] | \
[1-6][0-9][0-9][0-9][0-9])
echo $me > /etc/mospe ; break ;;
*) echo Improper MOSIX number - please try again: ;;
esac
done
fi
start_mosix
eend
}
stop() {
eecho "Stopping MOSIX"
stop_mosix
eend
}
status() {
/sbin/setpe -r
}
restart() {
eecho "Restarting MOSIX"
stop_mosix
start_mosix
eend
}
doservice ${@}
|
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