TraceMap: interactive HTML dashboards for analyzing vLLM workloads (added to custom_workflows)

[hyukjlee]

This (draft) PR introduces new tool generates interactive HTML dashboards for analyzing PyTorch profiler trace files (.pt.trace.json.gz) from vLLM workloads. It provides visualization capabilities for GPU kernel profiling and performance analysis.

[Features]
-Interactive HTML Dashboard: Generate a standalone HTML report to zoom, pan, and inspect individual kernel execution events.
-Side-by-Side Trace Comparison: Compare two trace files to easily spot regressions or improvements in kernel-level performance.
-Lightweight and Portable: Outputs a self-contained HTML file viewable in any modern browser. You can open it in your phone, laptop and tablet.

[ajassani]

@hyukjlee thanks for the PR!
Everything looks good. Just one point: we are avoiding uploading trace files to github. Maybe you can put on a secure share point and add the link?

[hyukjlee]

Sure. I will update the PR without the trace files. @ajassani

[hyukjlee]

Erased the traces and updated the main file arguments as well.