xcat-core/xCAT-IBMhpc/share/xcat/IBMhpc/IBMhpc.postscript

#!/bin/sh
# Sample postscript script for base OS configuration for all HPC software
# AIX:
#    set network tunables
#
# Linux: for statefull (full-disk install) nodes
#     Make sure this runs before the node reboots after initial install
#     for services to be activated
#

OS=`uname`

# AIX
if [ $OS = "AIX" ]; then
   # Set network tunables
    no -p -o tcp_recvspace=524288
    no -p -o tcp_sendspace=524288
    no -p -o udp_recvspace=655360
    no -p -o udp_sendspace=65536
    no -p -o arpqsize=64
    no -p -o rfc1323=1
    no -p -o sb_max=8388608
    chdev -l sys0 -a maxuproc='4096'
   exit
fi

# Linux
ps_dir=/xcatpost

hpc=/opt/xcat/share/xcat/IBMhpc
otherpkgs=/install/post/otherpkgs/$osver/$arch


chkconfig atd on
chkconfig xinetd on

# Automatically mount /dev/cpuset at node boot
if ! grep 'cpuset' /etc/init.d/boot.local ; then
cat <<END >>/etc/init.d/boot.local
if test -e /dev/cpuset || mkdir -p /dev/cpuset ; then
        mount -t cpuset none /dev/cpuset
fi
END
fi

# Modify some ulimits
if [ -f /etc/sysconfig/ulimit ]; then
    if [ ! -f /etc/sysconfig/ulimit.XCAT_BAK ]; then
       cp -p /etc/sysconfig/ulimit /etc/sysconfig/ulimit.XCAT_BAK
    fi
    # max locked memory
    /usr/bin/sed -i 's/HARDLOCKLIMIT=.*/HARDLOCKLIMIT="unlimited"/g'  /etc/sysconfig/ulimit
    /usr/bin/sed -i 's/SOFTLOCKLIMIT=.*/SOFTLOCKLIMIT="unlimited"/g'  /etc/sysconfig/ulimit
    # max memory size
    /usr/bin/sed -i 's/HARDRESIDENTLIMIT=.*/HARDRESIDENTLIMIT="unlimited"/g'  /etc/sysconfig/ulimit
    /usr/bin/sed -i 's/SOFTRESIDENTLIMIT=.*/SOFTRESIDENTLIMIT="unlimited"/g'  /etc/sysconfig/ulimit
fi