Yo,
So we are thinking about installing glite cluster.
BUT.
1) it's not really useful for installed capacities anymore, since the WLCG MB decided on a manual (web) system for sites to enter these numbers,
2) it is much less than clear to me if EMI CREAM is ready for glite cluster. what i mean is something like this:
a) the WMS, or some similar brokering system that actually looks at what is in the BDII, sees a CE that matches a jobs requirements, by looking at e.g. the amount of wall time offered, multiplied by the HS06 rating of the most powerful subcluster published.
b) this brokering system submits that job
c) as far as I know there is no connection -- and here I mean a real, deployed, in production connection, I do not mean a connection like "in theory a site could write its own plugin for BLAH", nor do I mean "you should define a separate queue for each subcluster" -- between CREAM and the batch system that will make sure that torque knows we can only submit to that particular subcluster. so the job most likely goes to a different subcluster and gets killed for exceeding its walltime.
so unless i want to write BLAH plugins, or multiply the number of CE endpoints we publish (and amount of junk in the BDII) by four (the number of different subclusters we have), we should NOT install and use glite-cluster.
Do I understand the situation correctly?
Thanks
JT
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