8.2. Configuration

The values in the flat files in the /proc/hpc/admin directory presenting the current configuration of the cluster. Also the administrator can write its own values into these files to change the configuration during runtime, e.g.
echo 1 > /proc/hpc/admin/block          -blocks the arrival of remote processes
echo 1 > /proc/hpc/admin/bring          -bring all migrated processes home
...
/proc/hpc/admin/ (binary files)          config          			
					-the main configuration file (written by the setpe util)

(flat files)            block           -allow/forbid arrival of remote processes
                        bring           -bring home all migrated processes
                        dfsalinks       -list of current symbolic dfsa-links
                        expel           -sending guest processes home
                        gateways        -maximum number of gateways
                        lstay           -local processes shoud stay

                        mospe           -contains the openMosix node id
                        nomfs           -disables/enables MFS
                        overheads       -for tuning
                        quiet           -stop collecting load-balacing informations
                        decayinterval   -interval for collecting informations about load-balancing
                        slowdecay       -default 975
                        fastdecay       -default 926
                        speed           -speed relative to PIII/1GHz)
                        stay            -enables/disables automatic process migration
Writing a 1 to the following files
                        
/proc/hpc/decay/

                        clear           -clears the decay statistics
                        cpujob          -tells openMosix that the process is cpu-bound
                        iojob           -tells openMosix that the process is io-bound
                        slow            -tells openMosix to decay its statistics slow
                        fast            -tells openMosix to decay its statistics fast