Configuración.

Se editará el fichero $HOME/.bWatchrc.tcl y en la sentencia set listOfHosts se incluirá el nombre de los nodos que conforman el cluster

set bWatchrcVersion 1.0.0
set listOfHosts pc0 pc1

# set the columns which should be displayed
# 1 - information will be displayed for every host
# 0 - column will not be shown

# number of users on the system
set display(numUsers) 1
# system time
set display(time) 1
# 1 minute averga load
#set display(load1) 1
# 5 minutes average load
set display(load5) 1
# 15 minutes average load
set display(load15) 1
# number of processes
set display(numProcesses) 1
# total RAM
set display(totalMemory) 1

# available free RAM
set display(freeMemory) 1
# shared RAM
set display(sharedMemory) 1
# buffered memory
set display(buffers) 1
# cached memory
set display(cache) 1
# total swap space
set display(totalSwap) 1
# available swap space
set display(freeSwap) 1

# foreground and background coulours
# of the heading of the table
set colour(headingBG) #066
set colour(headingFG) #FFF

# foreground and background colours
# of the first column showing host names
set colour(hostNameBG) #006
set colour(hostNameFG) #FFF

set colour(neutralFG) black
set colour(firstWarningFG) orange
set colour(secondWarningFG) #A00
set colour(errorFG) #F00
set colour(errorBG) #FFF

set loadLimit(firstWarning) 1.5
set loadLimit(secondWarning) 2.5
set loadLimit(error) 5.0

set freeMemLimit(firstWarning) 1024
set freeMemLimit(secondWarning) 512
set freeMemLimit(error) 1

set freeSwapLimit(firstWarning) 20480
set freeSwapLimit(secondWarning) 10240
set freeSwapLimit(error) 5120
set blank ----
set cell(width) 8

La herramienta bWatch obtiene los resultados de los distintos nodos a través del protocolo RSH, por lo tanto, en el fichero $HOME/.rhosts deberán estar incluidos los nombres de los nodos que conforman el cluster. Un ejemplo podría ser:

pc0
pc1
...