prefect_submitit integration

[vineetbansal]

Summary of Changes

>> Provide context and a description of your changes here. Make sure to reference any associated issues. <<

Requirements

• My PR is focused on a single feature addition or bugfix.
• My PR has relevant, comprehensive unit tests.
• My PR is on a custom branch (i.e. is not named main).

Note: If you are an external contributor, you will see a comment from @buildbot-princeton. This is solely for the maintainers.

[codecov]

Codecov Report

❌ Patch coverage is 80.00000% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 97.55%. Comparing base (9e20655) to head (8642662).

Files with missing lines	Patch %	Lines
src/quacc/wflow_tools/decorators.py	80.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3202      +/-   ##
==========================================
- Coverage   97.64%   97.55%   -0.09%     
==========================================
  Files          98       98              
  Lines        4282     4303      +21     
==========================================
+ Hits         4181     4198      +17     
- Misses        101      105       +4     

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[vineetbansal]

@Andrew-S-Rosen - on tiger-arrk, I find that the IP address of prefect server as reported on the head node is different from what the compute nodes need to reach it. This is not prefect-submitit specific, but in general when using prefect as the workflow engine on slurm.

So technically, the examples of prefect using slurm that rely on a slurm setup phase should say something like:

    setup=[
        "module load ...",
        "conda activate...",
        f"export QUACC_VASP_PARALLEL_CMD='{vasp_parallel_cmd}'",
        "export PREFECT_API_URL=http://10.36.32.21:4200/api",
        "export PREFECT_SERVER_API_HOST=10.36.32.21",
    ],

[vineetbansal]

This PR will keep failing till our PR to prefect-submit is merged:
dexterity-systems/prefect-submitit#17

[Andrew-S-Rosen]

Guard in case user does not have prefect_submitit

[vineetbansal]

Use find_spec instead of a bare try: .. except ImportError.