Hi Loris,
as far as i can read the man page, it indicates that the BatchHost (the
node, where the batchscript gets executed) will be one of the types
asked for by --batch.
Moreover, if the allocation does not have any of the requested
--batch-features, the job will start as usually on the first allocated node.
@Tomo
So, if you want to use the broadwell node, just use
-C broadwell
best
Marcus
On 10/2/19 8:23 AM, Loris Bennett wrote:
Hi Tomo,
"Uemoto, Tomoki" <fj277...@aa.jp.fujitsu.com> writes:
Hi,all
I'm working with slurm 18.08.6 on RHEL7.6
manager : 1node
computes: 2nodes (c001:haswell,c002:broadwell)
I am checking the --batch option of the sbatch command.
The following Features were set for testing.
# scontrol update nodename=c001 Features=haswell
# scontrol update nodename=c002 Features=broadwell
And submitted a sleep job.
$ cat sleep_60.sh
#!/bin/bash
#SBATCH -J sleep_60 # Job name
#SBATCH -o job.%j.out # Name of stdout output file (%j expands to jobId)
prun sleep 60
$
$ sbatch --batch=broadwell --constraint="haswell|broadwell" sleep_60.sh
$ squeue -l
Wed Oct 2 13:50:40 2019
JOBID PARTITION NAME USER STATE TIME TIME_LIMI
NODES NODELIST(REASON)
28 normal sleep_60 test RUNNING 0:03 1-00:00:00
1 c001
$
I thought the job would be executed in "c002(broadwell)" by the designation of
"--batch=broadwell".
However the job was executed in "c001(haswell)"
Why isn't it running on "c002(broadwell)" ?
Regards,
Tomo
I haven't come across this before, but the documentation seems to
indicate that the option '--batch' applies only to the batch step. The
actual job step, in your case the 'sleep' can then run on any node
satisfying the condition given via the option '--constraint', so in your
case either your Broadwell or you Haswell node.
However, I would have thought that, all things being equal, the batch
step and the job step would run on the same node. However, I'm not sure
how a constrain with 'or' is resolved if multiple solutions are
available.
What happens if you write the constraint as
--constraint="broadwell|haswell"
?
Cheers,
Loris
--
Marcus Wagner, Dipl.-Inf.
IT Center
Abteilung: Systeme und Betrieb
RWTH Aachen University
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52074 Aachen
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Fax: +49 241 80-624383
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