Remove nvenc/dec for xenna 0.1.6

[suiyoubi]

Description

Linked issue: #1201

For Video Transcoding stage, use similar logic as https://github.com/nvidia-cosmos/cosmos-curate/blob/main/cosmos_curate/pipelines/video/clipping/clip_extraction_stages.py#L198 to partition gpu based on _nb_streams_per_gpu.

Usage

# Add snippet demonstrating usage

Checklist

• I am familiar with the Contributing Guide.
• New or Existing tests cover these changes.
• The documentation is up to date with these changes.

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[greptile-apps]

_{7 files reviewed, 1 comment}

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[greptile-apps]

logic: When entire_gpu=True, self.gpus is set to 1.0 after validation checks. If user also sets gpu_memory_gb > 0, the validation on line 52 will fail before reaching this code, which is correct. However, if user sets both entire_gpu=True and gpus > 0, this assignment will silently overwrite their explicit gpus value without raising an error. Should there be a validation check to prevent setting both entire_gpu=True and gpus > 0 explicitly?

[suiyoubi]

I honestly think the best is to drop entire_gpu and only provide gpu_memory_gb and gpus. @ayushdg @praateekmahajan what do you think

[praateekmahajan]

I agree with this, entire_gpu has been confusing for me the whole time it existed. I think it was there for nvenc/nvdec reasons (which I never understood well). So if we're nuking nvenc/nvdec support this should be good to go

@abhinavg4

[sarahyurick]

Fine with me too.

[ayushdg]

Agreed let's just drop this

[abhinavg4]

I will make a seperate issue for this to track. Let's keep it seperate. Wanna make sure we do it properly across documentation and code and stuff

[suiyoubi]

/ok to test d9f705a

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