Feat/perf report compare

[ajassani]

No description provided.

[Copilot]

Pull Request Overview

This PR introduces a new user guide for comparing TraceLens performance reports and refactors tensor-type detection logic in the performance model.

• Add examples/compare_perf_reports.md with step-by-step instructions and tables for comparing .xlsx reports.
• Remove the is_tensortype helper in TraceLens/PerfModel/perf_model.py and replace it with shape-based checks.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
examples/compare_perf_reports.md	New markdown guide detailing inputs, flags, output, and design.
TraceLens/PerfModel/perf_model.py	Remove is_tensortype; use shape_in* != () for tensor checks.

[Copilot]

The original is_tensortype check also verified the data type; switching to shape-only may misclassify non-floating tensors (e.g., integer tensors) as 'tensor types'. Consider reintroducing a dtype check or renaming this logic to accurately reflect its new semantics.

Suggested change

	in1_is_tensor = self.param_details['shape_in1'] != ()
	in2_is_tensor = self.param_details['shape_in2'] != ()
	in1_is_tensor = self.param_details['shape_in1'] != () and name2bpe(self.param_details['dtype_in1_in2_out'][0]) is not None
	in2_is_tensor = self.param_details['shape_in2'] != () and name2bpe(self.param_details['dtype_in1_in2_out'][1]) is not None

[Copilot]

[nitpick] There is an extra space before the period in the section header. For consistency, change ### 1 . What It Takes In to ### 1. What It Takes In.

Suggested change

	### 1 . What It Takes In
	### 1. What It Takes In