Hi,
in my SGE 6.2u5 environment, I am seeing a strange issue when submitting jobs
to a parallel environment while also providing a hard hostname resource
requirement.
This is not a standard situation, but sometimes certain benchmarks need to be
run on one specific host only.
When submitting a jobs either with a parallel environment or with a hard
hostname resource specification, the jobs starts without delay.
However, the combination of both sometimes keeps jobs waiting for an extended
period of time, and I have not been able to get a clear messages from the
"qstat -j <jobID>" report.
Parallel environment settings is:
$ qconf -sp local
pe_name local
slots 1000
user_lists NONE
xuser_lists NONE
start_proc_args /bin/true
stop_proc_args /bin/true
allocation_rule $pe_slots
control_slaves FALSE
job_is_first_task TRUE
urgency_slots min
accounting_summary TRUE
The specific host being targeted has 32 slots configured for the queue being
used, and all of them are unused at this time.
Is anybody aware of specific issues with the combination of parallel
environments and a hard hostname resource request?
I have already tested this:
* Removed the parallel environment request - works
* Removed the hostname request - works
* Removed all resource limits ("qconf -mrqs") - no change
* Increased the "slots" limit in the PE setting - no change
* Changed the PE allocation_rule to "round_robin" - no change
After all, the final message in the "qstat -j <jobID>" report is always:
cannot run in PE "local" because it only offers 0 slots
I have seen many older reports for the "only offers 0 slots" message on older
pages, but none specifically for the combination with a hostname spec. (only).
Regards,
Manfred
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