Location of billable_tres / Billing of Trackable Resources (TRES) in New API

[chriswasser]

Hi everyone,

While porting to the new pyslurm API, I tried to find the new location of the billable_tres field of the old job dictionary. An example using this feature would be:

import pyslurm

jobs = [job for job_id, job in pyslurm.job().get().items()]
print("job", jobs[0]["job_id"], "is billed", jobs[0]["billable_tres"], "trackable resources")

I am using pyslurm version 22.5.3 together with SLURM version 22.05.4. However, I have looked through the current pyslurm main branch as well and could not find anything regarding billing or trackable resources (TRES) in the code for pyslurm.Jobs. I would like to do something along the lines of:

import pyslurm

jobs = [job for job_id, job in pyslurm.Jobs.load().items()]
print("job", jobs[0].id, "is billed", jobs[0].some_function_or_attribute_for_tres, "trackable resources")

Does this info still exist in the new interface or was this field not ported over?

Thanks for your help in advance 🤗

Greetings,

Christian

[tazend]

Hi,

this info doesn't exist in the new interface currently. At the time of implementing the interface I probably didn't see it mentioned anywhere explicitly in the Slurm API for scontrol/squeue, so I just skipped it.

But it will be easy to add in, I will do so in the next days.

[chriswasser]

Hi @tazend,

Thanks for the quick feedback and the possibility to implement this feature 🤓 If it helps, it seems like the man page of squeue lists a field option for --Format called tres-alloc which should contain the desired information.

Greetings

Christian

[tazend]

Hey,

yes, getting the info via tres-alloc / tres-req is also an option, but luckily they provide a standalone-field in the C-API which I can just parse.
I just added this new field to the pyslurm.Job class. So now, you should be able to do:

import pyslurm

jobs = [job for job_id, job in pyslurm.Jobs.load().items()]
print("job", jobs[0].id, "is billed", jobs[0].billable_tres, "trackable resources")

I'd recommend directly using the 22.5.x branch for now: https://github.com/PySlurm/pyslurm/tree/22.5.x

[chriswasser]

Superb, thanks for the fast feature addition 🎉 Luckily, the field was already available in the underlying C struct 👌

Tested with the 22.5.x branch and, as expected, works like a charm 👍