[slurm-users] sbatch sending the working directory from the controller to the node

[William Brown]

The srun man page says:

 

When initiating remote processes srun will propagate the current working directory, unless --chdir=<path> is specified, in which case path will become the working directory for the remote processes.

 

William

 

From: slurm-users <slurm-users-bounces at lists.schedmd.com> On Behalf Of Dean Schulze
Sent: 21 January 2020 19:27
To: Slurm User Community List <slurm-users at lists.schedmd.com>
Subject: [slurm-users] sbatch sending the working directory from the controller to the node

 

I run this sbatch script from the controller:

=======================
#!/bin/bash
#SBATCH --job-name=test_job
#SBATCH --mail-type=NONE    # Mail events (NONE, BEGIN, END, FAIL, ALL)
#SBATCH --ntasks=1
#SBATCH --mem=1gb
#SBATCH --time=00:05:00     # Time limit hrs:min:sec
#SBATCH --output=test_job_%j.log   # Standard output and error log

pwd; hostname; date
=======================


The node gets the directory that sbatch was executed from on the controller and tries to write the output file to that directory, which doesn't exist on the node.  The node slurmd.log shows this error:

2020-01-21T11:25:36.389] [7.batch] error: Could not open stdout file /home/dean/src/slurm.example.scripts/serial_test_7.log: No such file or directory


If I change the sbatch script --output to a fully qualified directory that exists on the node

    --output=/home/nodeuser/serial_test_%j.log

the output file is written to that directory, but it includes this error showing that the slurm node is trying to execute the job in the directory that sbatch was run from on the controller:

slurmstepd: error: couldn't chdir to `/home/dean/src/slurm.example.scripts': No such file or directory: going to /tmp instead


The sbatch docs say nothing about why the node gets the pwd from the controller.  Why would slurm send a directory to a node that may not exist on the node and expect it to use it?

 

What's the right way to specify the --output directory in an sbatch script?

 

Thanks.




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