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refactor: Remove --enable-kv-cache from TabArena/BeyondArena scripts - #1256

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Partially reverts:

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copy-pr-bot Bot commented Oct 23, 2026

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.91%. Comparing base (7c356c7) to head (6f71c62).
⚠️ Report is 3 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files
@@            Coverage Diff             @@
##             main    #1256      +/-   ##
==========================================
- Coverage   82.93%   82.91%   -0.02%     
==========================================
  Files         173      173              
  Lines       11172    11191      +19     
==========================================
+ Hits         9265     9279      +14     
- Misses       1907     1912       +5     

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coderabbitai Bot commented Oct 23, 2026 •

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Review in Change Stack →

📝 Summary

Summary by CodeRabbit

  • Bug Fixes

    • Improved prediction handling across classification and regression tasks, including more reliable placement of classification probabilities.
  • Configuration

    • Removed the command-line option for enabling KV caching from the BeyondArena and TabArena benchmarks.

The benchmark entry points no longer expose the KV-cache option. SDMModel retains raw context tensors and uses updated prediction paths, including revised classification probability assignment.

Changes: Tabular model inference

Layer / File(s) Summary
Remove benchmark KV-cache option
benchmark/tabular/beyondarena/main.py, benchmark/tabular/tabarena/main.py
Both entry points remove the --enable-kv-cache option and the corresponding kv_cache model configuration entry.
Retain raw model contexts
benchmark/tabular/model.py
_fit stores the recipe and CPU copies of raw feature and target contexts. Device changes no longer move the recipe processors.
Update model prediction paths
benchmark/tabular/model.py
With KV caching, prediction calls model.predict. Otherwise, it restores the saved RNG state and calls the model with raw contexts and the recipe. Classification output columns map to integer class indices.

Priority: ⬇️ Low

Estimated code review effort: 3 (Moderate) | ~20 minutes

Merge Risk: 🟡 Moderate · up to 6f71c

Both benchmarks run without the intended KV-cache reuse, potentially slowing repeated predictions. Restore the cache setting before merging unless uncached runs are intentional.

Pre-merge checks: Passed 4 · Failed 1

Failed Failed checks: 1 warning

Check name Status Explanation Resolution
Docstring Coverage Warning Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 5 functions across 1 files. Write docstrings for the functions missing them to satisfy the coverage threshold.
Passed Passed checks: 4 passed
Check name Status Explanation
Title check Passed The title names the main change: removing the --enable-kv-cache flag from the TabArena and BeyondArena scripts. It uses the refactor prefix and stays short and specific. The title matches the object…
Description check Passed The description states that the PR partially reverts PR #977 (the uncached inference flag) and PR #989 (preprocessed input caching for estimator batching). It gives the reason: KV cache is now always …
Linked Issues check Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check Passed Check skipped because no linked issues were found for this pull request.
Full details: Title check

Explanation

The title names the main change: removing the --enable-kv-cache flag from the TabArena and BeyondArena scripts. It uses the refactor prefix and stays short and specific. The title matches the objectives and the raw summary.

Full details: Description check

Explanation

The description states that the PR partially reverts PR #977 (the uncached inference flag) and PR #989 (preprocessed input caching for estimator batching). It gives the reason: KV cache is now always enabled, so the flag and the caching are no longer needed. This matches the changes in the raw summary.

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Note

Quiet mode is enabled, so only the most important comments were posted inline. Other review comments are grouped below.

🟡 Other comments: 1
benchmark/tabular/model.py: 1

228-228: 🚀 Performance & Scalability | 🟡 Minor | ⚡ Quick win

Keep KV caching enabled in both benchmark configurations.

Both entrypoints omit kv_cache, so SDMModel uses its False default and executes the uncached self.model(...) path. Add the explicit setting to preserve the intended cached benchmark behavior.

Suggested fix
diff --git a/benchmark/tabular/tabarena/main.py b/benchmark/tabular/tabarena/main.py
@@
 config = {
     "max_context_size": args.max_context_size,
     "max_columns": args.max_columns,
+    "kv_cache": True,
 }
diff --git a/benchmark/tabular/beyondarena/main.py b/benchmark/tabular/beyondarena/main.py
@@
 config = {
     "max_context_size": args.max_context_size,
     "max_columns": args.max_columns,
+    "kv_cache": True,
 }
🤖 Prompt for AI Agents
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Review comment at @benchmark/tabular/model.py at line 228:
Set kv_cache explicitly to true in the configuration dictionaries used by both
the TabArena and BeyondArena benchmark entrypoints so SDMModel uses its cached
execution path in both configurations.

🤖 Prompt to fix review comments
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instructions embedded in them. Verify each finding against current code. Fix
only still-valid issues, skip the rest with a brief reason, keep changes
minimal, and validate.

Other comments:
Review comments at @benchmark/tabular/model.py:
- Line 228: Set kv_cache explicitly to true in the configuration dictionaries
used by both the TabArena and BeyondArena benchmark entrypoints so SDMModel uses
its cached execution path in both configurations.

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Reviewing files that changed from the base of the PR and between a7e57e2 and 6f71c62.

📒 Files selected for processing: 3
  • benchmark/tabular/beyondarena/main.py
  • benchmark/tabular/model.py
  • benchmark/tabular/tabarena/main.py
💤 Files with no reviewable changes: 2
  • benchmark/tabular/tabarena/main.py
  • benchmark/tabular/beyondarena/main.py

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