[hipBLASLt] add tuned K=1024 grid entries for gfx1151 BF16 GEMMs used by VJEPA-2

[serged-amd]

Motivation

The GEMM shapes used by the VJEPA-2 model have sub-optimal defaults which cause reduced model throughput.

This PR adds one and modifies two K=1024 grid points to significantly improve GEMM performance in this model.

Technical Details

Changes to gfx1151_Cijk_Alik_Bljk_BBS_BH_Bias_HAS_SAV_UserArgs.yaml:

Shape	Old Solution	New Solution	Old TFLOPs	New TFLOPs	Speedup
3072×576×1024	829 (MT128x64x32)	1103 (MT96x128x32)	24.5	32.3	+32%
1024×576×1024	1073 (MT32x64x32)	1042 (MT128x64x64)	24.3	30.5	+26%
1024×576×4096	1035 (MT32x64x64)	1042 (MT128x64x64)	23.9	33.7	+41%

Grid entry changes:

• Add [3072, 576, 1, 1024] -> [287, 32280.3]
• Modify [1024, 576, 1, 1024] -> [226, 30463.3] (was [257, 6.93])
• Modify [1024, 576, 1, 4096] -> [226, 33695.3] (was [219, 6.72])

Test Plan

• Verify solution selection via HIPBLASLT_LOG_MASK=32
• Benchmark V-JEPA2 ViT-L/384 model end-to-end

Test Result

V-JEPA2 ViT-L/384: 39.4 -> 44.3 FPS (+12%)

Solution selection verified:

• 3072x576x1024: 829 -> 1103
• 1024x576x1024: 1073 -> 1042
• 1024x576x4096: 1035 -> 1042

Submission Checklist

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

[therock-pr-bot]

❌ PR Check — Action Required

Check	Status	Details
🌿 Branch Name	✅ Pass	—
📝 PR Title/Description	❌ Fail	Error: Title does not follow Conventional Commits style. Expected: start with a valid type (feat, fix, docs, …). Desired format: type(optional-scope): short description ─── Error: PR description must reference a JIRA ID, ISSUE ID, or a GitHub closing keyword. Expected: include a JIRA ID / ISSUE ID line (separator : or -, or omitted; value may be a JIRA key, a number with/without #, or a link), OR a closing keyword + issue reference. Accepted examples: • JIRA ID : TESTAUTO-6039 • JIRA ID - #330 • JIRA ID #330 • ISSUE ID : TESTUTO-3334 • ISSUE ID #3334 • ISSUE ID - TESTAUTO-3433 • ISSUE ID : https://github.com/<org_name>/<repo_name>/issues/1234 • Closes #10 • Fixes octo-org/octo-repo#100 • Resolves: #123 • #123 • https://github.com/<org_name>/<repo_name>/issues/123 Current: no valid JIRA/ISSUE/closing-keyword reference found
⛔ Forbidden Files	✅ Pass	—
🧪 Unit Test	✅ Pass	PR does not contain code files — Unit Test auto-passed
🔎 pre-commit	✅ Pass	—
🚫 Draft PR	🔜 To Be Enabled	—
🚩 Feature Flag	🔜 To Be Enabled	—
📊 Code Coverage	🔜 To Be Enabled	—

⚠️ 1 policy check(s) failed. Please address the issues above before this PR can be Reviewed.

🚫 Please fix the failed policies

• ❌ PR Title/Description

The Not ready to Review label was added to this PR. Once all policies pass, the label is removed automatically.

📖 Need help? See the Policy FAQ for details on every check and how to fix failures.

[therock-pr-bot]

🚫 Please fix the failed policies before requesting reviews.

The following policy checks failed:

• ❌ PR Title/Description

The Not ready to Review label has been added to this PR.
Once all policies pass, the label will be removed automatically.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.

❌ Your project status has failed because the head coverage (76.92%) is below the target coverage (80.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #9238      +/-   ##
===========================================
- Coverage    64.99%   64.99%   -0.00%     
===========================================
  Files         2685     2685              
  Lines       422106   422157      +51     
  Branches     62705    62717      +12     
===========================================
+ Hits        274342   274355      +13     
- Misses      127065   127102      +37     
- Partials     20699    20700       +1     

Flag	Coverage Δ		*Carryforward flag
TensileLite	34.86% <ø> (ø)		Carriedforward from 436f490
hipBLAS	90.81% <ø> (ø)		Carriedforward from 436f490
hipBLASLt	34.69% <ø> (-0.02%)	⬇️
hipCUB	82.68% <ø> (ø)		Carriedforward from 436f490
hipDNN	86.15% <ø> (ø)		Carriedforward from 436f490
hipFFT	50.88% <ø> (ø)		Carriedforward from 436f490
hipRAND	76.12% <ø> (ø)		Carriedforward from 436f490
hipSOLVER	69.18% <ø> (ø)		Carriedforward from 436f490
hipSPARSE	86.10% <ø> (ø)		Carriedforward from 436f490
rocBLAS	47.91% <ø> (ø)		Carriedforward from 436f490
rocFFT	50.80% <ø> (ø)		Carriedforward from 436f490
rocRAND	57.02% <ø> (ø)		Carriedforward from 436f490
rocSOLVER	76.92% <ø> (ø)		Carriedforward from 436f490
rocSPARSE	72.37% <ø> (ø)		Carriedforward from 436f490
rocThrust	91.36% <ø> (ø)		Carriedforward from 436f490

*This pull request uses carry forward flags. Click here to find out more.
see 3 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.