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Fix command args for MPI based deepspeed launchers #3357

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What does this PR do?

Fixes #3319

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  • This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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raise ValueError(
f"--deepspeed_inclusion_filter is not supported with --deepspeed_multinode_launcher {args.deepspeed_multinode_launcher}"
)

if num_machines > 1 and args.deepspeed_multinode_launcher != DEEPSPEED_MULTINODE_LAUNCHERS[1]:
cmd = ["deepspeed", "--no_local_rank"]
cmd.extend(["--hostfile", str(args.deepspeed_hostfile), "--launcher", str(args.deepspeed_multinode_launcher)])
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regarding line 344, although out of scope of this PR, I don't think --exclude and --include need to be mutually exclusive

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openmpi launchers for deepseed should not set unsupported --num_gpus
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