dsv3 blockscale gemm config in mi300

[yzhou103]

Motivation

Technical Details

Test Plan

Test Result

Submission Checklist

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

[github-actions]

🏷️ CI Guide

Runs automatically on every PR:

• ✅ Pre-checks (submodule verification, code formatting)
• ✅ Aiter op tests (gfx942 + gfx950)
• ✅ Triton tests on MI35X (only when aiter/ops/triton/** or related paths are changed)

Extended tests (opt-in via labels):

Label	Tests
ci:sglang	SGLang integration tests
ci:atom	ATOM benchmark (DeepSeek-R1 + GPT-OSS)
ci:vllm	vLLM benchmark
ci:all	All of the above

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[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds additional GEMM (M,N,K) problem sizes to the DeepSpeed v3 a8w8 blockscale “untuned” config, likely to cover MI300-relevant shapes and smaller-M cases.

Changes:

• Extends the CSV with many new (M,N,K) entries (notably N=512, K=7168 with M ranging 1→32768).
• Adds a blank separator line and one additional shape that differs from the new block’s (N,K) pattern.

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[Copilot]

There is an empty row in the CSV. If the loader expects every non-header line to contain exactly 3 comma-separated values, this blank line can cause parse failures or require special-casing. Remove the blank line, or replace it with a comment row only if the parser explicitly supports comments.

Suggested change

[Copilot]

The new block largely follows a consistent pattern of N=512, K=7168 while sweeping M, but the entry 4, 7168, 2048 breaks that pattern (N/K appear swapped vs surrounding rows). If this isn’t intentional, it’s likely a typo and should be corrected to match the intended N/K values; if it is intentional, consider grouping it with other *, 7168, 2048 shapes (or adding a clear separator/comment if supported) to avoid accidental misconfiguration.

Suggested change

	4, 7168, 2048
	4, 512, 7168