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HOME filesystem
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Since the System update of Laki (NEC Nehalem Cluster) to Scientific Linux 6.2 the Home filesystem is shared between Hermit (Cray XE6) and Laki. For some users it may be convinient to have some content stored in the users HOME like application configuration directories and files seperated between the two systems. This can be done by the .profile example shown below.
#!/bin/bash #XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX # == Declaration of variables ======================================= XX #XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX # NEHALEM_SUBFOLDER=nehalem_home CRAY_SUBFOLDER=cray_home # # -- Set your default home location ------------------------------------ # # [1] : BlueArc with subdirectory # [2] : Lustre workspace # HOME_LOC=2 # #XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX # == Declaration of functions ======================================= XX #XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX # # -- Function to set new HOME path ------------------------------------- set_new_home () { if [ -d $HOME/$1 ]; then export HOME=$HOME/$1 else echo "Found no subdirectory '$1' in current HOME path" echo $HOME ret=`mkdir $HOME/$1` if [ -n $ret ]; then echo "Created subdirectory '$1'" export HOME=$HOME/$1 else echo "Subdirectory '$1' could not be created. Using" echo $HOME echo "as HOME path" export HOME=$HOME fi fi } # #XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX # == Preparation of HOME redirection ================================ XX #XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX # # -- Save original home path ------------------------------------------- ORIGINAL_HOME=$HOME export ORIGINAL_HOME # # -- If X forwarding is enabled ---------------------------------------- if [[ -n "`echo $DISPLAY | grep localhost`" ]]; then # -- Get Display number --------------------------------------------- displ_nr=`echo $DISPLAY | sed -e "s/localhost//" | cut -d. -f1` #echo $displ_nr # # -- Extract magic cookie for current display ----------------------- mgco=`xauth nextract - ${HOST}/unix${displ_nr}` #echo $mgco else mgco="" fi # # -- Set Home location to workspace if requested ----------------------- if [[ "$HOME_LOC" == "2" ]]; then HOME=`ws_find home` if [[ -z $HOME ]]; then echo "Please allocate workspace with name 'home' if choosing HOME_LOC=2" HOME=$ORIGINAL_HOME fi fi # #XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX # == Nehalem login ================================================== XX #XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX # if [[ $HOST == cl3* ]] || [[ -n `echo $HOST | grep -e "n[0-9]\{6\}$"` ]]; then set_new_home $NEHALEM_SUBFOLDER fi # #XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX # == Hermit login =================================================== XX #XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX # if [[ "$HOST" == "hermit1" ]] || [[ -n `echo $HOST | grep -e "eslogin[0-9]\{3\}$"` ]] || [[ -n `echo $HOST | grep -e "nid[0-9]\{5\}$"` ]] || [[ -n `echo $HOST | grep -e "pre[0-9]\{3\}$"` ]] ; then set_new_home $CRAY_SUBFOLDER fi # #XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX # == Preparation of specific environment ============================ XX #XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX # if [[ -n $ORIGINAL_HOME ]]; then echo "" echo "==================================================================" echo "" echo " Please be aware that the path to your home directory has been" echo " changed from" echo "" echo " $ORIGINAL_HOME" echo "" echo " to" echo "" echo " $HOME" echo "" # # -- Change to machine specific HOME ----------------------------------- cd $HOME # # -- Link .ssh to new home --------------------------------------------- if [ ! -d .ssh ]; then ln -s $ORIGINAL_HOME/.ssh .ssh fi # if [[ -n "$mgco" ]]; then # -- Update .Xauthority in new home --------------------------------- if [ ! -e .Xauthority ]; then cp $ORIGINAL_HOME/.Xauthority .Xauthority else echo $mgco | xauth nmerge - fi fi # # -- Set machine specific environment ---------------------------------- if [ -f .profile ]; then source .profile else echo "Found no .profile in new HOME location" echo "" fi # else echo "" echo "==================================================================" echo "" echo " Please be aware that the path to your home directory has not" echo " been changed even though the .profile for HOME diverting was " echo " executed on login !" echo "" echo "This is becaus login came accross "$HOST echo "" fi