Users/jamessiddeley amd/roofline add lds ai plot point

[jamessiddeley-amd]

Motivation

Add LDS arithmetic intensity roofline plot points and make roofline plot colors easier to view by aligning cache level marker colors with their corresponding ceiling lines

Technical Details

• Adds LDS AI data to roofline plot-point generation.
• Uses the existing LDS bandwidth interpretation based on summed SQ_LDS_IDX_ACTIVE / SQ_LDS_BANK_CONFLICT values.
• Introduces a single roofline color palette so HBM/L2/L1/LDS marker colors match their bandwidth ceiling lines.
• Assigns explicit colors to bandwidth, Peak VALU, and Peak MFMA line traces instead of relying on Plotly’s default trace colors.

JIRA ID

ROCM-24893

Test Plan

• Ran focused roofline AI tests
• Rebuilt and profiled vcopy and occupancy workloads on MI350
• Inspected generated roofline HTML output

Test Result

• pytest tests/test_roofline_calc_ai_analyze.py -q passed
• Generated roofline plots successfully for FP8/FP16/FP32 workloads
• Verified direct ROCPROF=rocprofv3 CSV output has one row per dispatch/counter for tested workloads

rocprof-compute analyze -VVV -p workloads/occupancy_lds_bw/MI350/ -b 4
empirRoof_gpu-0_FP32_lds_bw_FP32.html

Submission Checklist

• Look over the contributing guidelines at https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.