Hi Reuti,
> Yes. But this queue can have the total slot count of the machine. Or are you
> assigning right now 4 cores to a short queue, 8 to a medium one and the
> remaining 4 cores of a 16 cores machine to a long queue?
I limit the total number of slots for each queue using an RQS. The shortest
queue (30 minute time limit) is unlimited, and each other queue can use up to
10% of the total slots (120 total). For example the RQS for one of the queues:
{
name longlimit
description NONE
enabled TRUE
limit queues long.q hosts * to slots=12
}
> The $PE_HOSTFILE will contain an entry for each granted queue. The MPI
> library will need to sum up the ones residing on one and the same host and
> use forks across the overall amount. This was a bug in Open MPI but it was
> fixed some time ago; in MPICH2 1.4.1p1 it's still there, even 3.0.4 and
> 3.1b1.
> I'll bring it up on the MPICH list (as a result several `qrsh -inherit ...`
> will be made to one and the same machine and you can face the error you got).
Thank you so much for this! I saw your message to the MPICH list and will
definitely keep an eye on it. I may also try out OpenMPI soon.
Thanks again,
Brendan
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