DO NOT MERGE : Layer-by-Layer Profiling

[varun-sundar-rabindranath]

Opened this PR as a place to document how to use the layer-by-layer profiler and as a place that to highlight the code additions.

Thanks @LucasWilkinson for most of the heavy-lifting.

How to use:
Profiler command example :
python3 examples/offline_profile.py --model facebook/opt-350m --batch-size 1 --prompt-len 512 --dtype auto --output-len 16 --json ./offline_profile.json

Visualizer command example :
python3 neuralmagic/tools/profiler/visualize_trace.py --json-trace offline_profile.json --level kernel

python3 neuralmagic/tools/profiler/visualize_trace.py --json-trace offline_profile.json --level module

Example

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[github-actions]

👋 Hi! Thank you for contributing to the vLLM project.
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🚀

[varun-sundar-rabindranath]

@LucasWilkinson @tlrmchlsmth @robertgshaw2-neuralmagic @mgoin fyi

[varun-sundar-rabindranath]

layer-by-layer is on vllm main now.