[slurm-users] Usage of Burst Buffers (generic)
Johan.Hofmans at glpg.com
Wed Jun 2 15:28:21 UTC 2021
We would like to start using the generic burst buffer plugin.
For this I read the burst buffer guide<https://slurm.schedmd.com/burst_buffer.html>, however I've not been able to replicate the listed examples.
In slurm.conf, the generic burst buffer was enabled via:
In the same directory, "burst_buffer_generic.conf", was created with:
JobSizeLimit=200GB # Applies to each job
UserSizeLimit=500GB # Applies to each user
(No reference is made to this file in any of the other configuration files of slurm)
When running for example:
srun --bb="capacity=1G access=striped type=scratch" ls
Or following script, executed via sbatch
#BB create_persistent name=alpha capacity=32GB access=striped type=scratch
#DW jobdw type=scratch capacity=1GB access_mode=striped
#DW stage_in type=file source=/home/centos/data.in destination=$DW_JOB_STRIPED/data
#DW stage_out type=file destination=/home/centos/data.out source=$DW_JOB_STRIPED/data
The command all executes without any errors (even when the source files are not available).
But When checking the burst buffer state via:
scontrol show burst
The output is empty.
Is there something I'm missing?
Thanks in advance!
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