From a1b804f879d86f90c009b79912726a24ed499120 Mon Sep 17 00:00:00 2001 From: Gahow Wang Date: Wed, 17 Jun 2026 22:11:52 +0800 Subject: [PATCH] Ablation: search.high 0.25 -> 0.15 (skip wildly-infeasible top probes) Smoke on the real-output substrate measured feasible sampling_u = 0.0156 (TP2) and 0.0742 (TP4, per-GPU 0.618 = 2.24x TP2). search.high=0.25 made the binary search waste its two top probes (u=0.125/0.0625, always infeasible, admitting the most long-output requests) on every trial. 0.15 keeps ~2x headroom over the TP4 boundary (0.0742) and trims ~15-20% of per-trial cost with identical feasibility results; if a runtime-tuned config ever saturates 0.15 the harness search-high saturation stop fires (informative, not silent). Co-Authored-By: Claude Opus 4.8 --- configs/examples/dash0_qwen27b_ablation_harness_on.json | 2 +- configs/examples/dash0_qwen27b_ablation_naive_off.json | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/configs/examples/dash0_qwen27b_ablation_harness_on.json b/configs/examples/dash0_qwen27b_ablation_harness_on.json index b8814c6..8fa7d5b 100644 --- a/configs/examples/dash0_qwen27b_ablation_harness_on.json +++ b/configs/examples/dash0_qwen27b_ablation_harness_on.json @@ -157,7 +157,7 @@ }, "search": { "low": 0.0, - "high": 0.25, + "high": 0.15, "tolerance": 0.001, "max_probes": 6, "sample_seed": 20260325, diff --git a/configs/examples/dash0_qwen27b_ablation_naive_off.json b/configs/examples/dash0_qwen27b_ablation_naive_off.json index 8825c0a..4acbf68 100644 --- a/configs/examples/dash0_qwen27b_ablation_naive_off.json +++ b/configs/examples/dash0_qwen27b_ablation_naive_off.json @@ -157,7 +157,7 @@ }, "search": { "low": 0.0, - "high": 0.25, + "high": 0.15, "tolerance": 0.001, "max_probes": 6, "sample_seed": 20260325,