First page Back Continue Last page Overview Graphics
Running interactively is NOT an option
Don't know how many processes are already running,cannot assign priorities
Jobs compete with each other (loss of performance due to swapping). No load balancing possible ...
Legitimate interactive work jeopardized (not fair)
(compilation/code development, testing, editor ...)
Restricted amount of resources you can access (RCF ~ 10%, PDSF ~ 4%)
Alternative, using “a” batch system
PDSF and RCF : LSF
versatile, flexible, ... but commercial
Others: PBS, Condor, NQS, ...
all free, not as flexible, Condor a “plus” as really close