Draft: Add MegatronNevaDeployable for serving multimodal models on Triton server

[jukim-nv]

TODO: still need to add a query helper in the style of nemo.deploy.nlp.query_llm.

What does this PR do ?

Adds a MegatronNevaDeployable class implementing ITritonDeployable enabling deployment of multimodal models like LLaVA/Neva to Triton inference server directly from .nemo checkpoints.

Currently this has only been tested with a LLaVA 1.5 model created with the instructions here.

Collection: [Note which collection this PR will affect]
deploy/

Changelog

• Add MegatronNevaDeployable class
• Add test_neva_deploy.py script for testing deployment

Usage

See test_neva_deploy.py for full example on how to use MegatronNevaDeployable.

    megatron_deployable = MegatronNevaDeployable(args.nemo_checkpoint, args.num_gpus)
...
    nm = DeployPyTriton(
        model=megatron_deployable,
        triton_model_name=model_name,
        triton_model_version=1,
        max_batch_size=8,
        port=8000,
        address="0.0.0.0",
        streaming=False,
    )
    nm.deploy()

GitHub Actions CI

The Jenkins CI system has been replaced by GitHub Actions self-hosted runners.

The GitHub Actions CI will run automatically when the "Run CICD" label is added to the PR.
To re-run CI remove and add the label again.
To run CI on an untrusted fork, a NeMo user with write access must first click "Approve and run".

Before your PR is "Ready for review"

Pre checks:

• Make sure you read and followed Contributor guidelines
• Did you write any new necessary tests?
• Did you add or update any necessary documentation?
• Does the PR affect components that are optional to install? (Ex: Numba, Pynini, Apex etc)
  • Reviewer: Does the PR have correct import guards for all optional libraries?

PR Type:

• New Feature
• Bugfix
• Documentation

If you haven't finished some of the above items you can still open "Draft" PR.

Who can review?

Anyone in the community is free to review the PR once the checks have passed.
Contributor guidelines contains specific people who can review PRs to various areas.

Additional Information

• Related to # (issue)

[github-actions]

This PR is stale because it has been open for 14 days with no activity. Remove stale label or comment or update or this will be closed in 7 days.

[github-actions]

This PR is stale because it has been open for 14 days with no activity. Remove stale label or comment or update or this will be closed in 7 days.

[github-actions]

This PR is stale because it has been open for 14 days with no activity. Remove stale label or comment or update or this will be closed in 7 days.