Re: [BProc] How scripts are run in batch spooling

[<ha...@no...>]

> A question about that. Lets suppose I want to use a bproc based cluster
> just to run parallel processes, like if it was a SMP box. No need of
> load balancing and so on. Really I just need a local queue system on
> master node, isn't it ? Just mantain a queue of programs, written
> in MPI or just with bproc to do the spawns, and there it is. 

But even here you might want more than one simple queue. Maybe some
jobs do not scale up well and you will prefer to run two jobs using
half of your nodes each. Maybe you want few nodes for software tests
and the rest for long production runs. So you have jobs which are
rectangles of NODESxTIME and want to place them ideally on the
resources rectangle you have (finish all jobs in shortest time
possible) - this is where Maui backfill is handy, even if it just runs
on master and decides where and when bpsh jobs.

Vaclav