From 5975caf0f52355276aabec5ba8f144db9ac46619 Mon Sep 17 00:00:00 2001 From: Yuren Hao Date: Sun, 5 Jul 2026 05:12:34 -0500 Subject: =?UTF-8?q?r-sweep:=20cos(EP,BPTT)=20FLAT=20across=20r=3D0.02..0.4?= =?UTF-8?q?=20on=20both=20operators=20=E2=80=94=20nudge-SNR=20hypothesis?= =?UTF-8?q?=20refuted?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The 50% single-shot sensitivity is MULTIPLICATIVE (near-marginal T2 dynamics' state-sensitivity; signal and error scale with r together) — not additive noise divided by 2r. cos ceiling ~0.88 at near-edge states is set by T2 truncation + state sensitivity (0.98 at deeply-contracted states). hr-0.2's empirical wins are NOT estimator SNR. Hardware upside: algorithm indifferent to r across 20x -> nudge amplitude free to fight ADDITIVE readout noise. Surviving accuracy levers: kappa nbrake (Tikhonov, targets the real culprit), tail-window averaging over argmin selection. Co-Authored-By: Claude Fable 5 Claude-Session: https://claude.ai/code/session_014FAPDWQ49M5Ye3NpTndTpn --- ep_run/r_sweep.log | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 ep_run/r_sweep.log (limited to 'ep_run/r_sweep.log') diff --git a/ep_run/r_sweep.log b/ep_run/r_sweep.log new file mode 100644 index 0000000..057b0eb --- /dev/null +++ b/ep_run/r_sweep.log @@ -0,0 +1,15 @@ +=== s2000 === +/home/yurenh2/miniconda3/lib/python3.13/site-packages/torch/autograd/graph.py:865: UserWarning: Attempting to run cuBLAS, but there was no current CUDA context! Attempting to set the primary context... (Triggered internally at /pytorch/aten/src/ATen/cuda/CublasHandlePool.cpp:330.) + return Variable._execution_engine.run_backward( # Calls into the C++ engine to run the backward pass + r=0.02 cos=0.9068 0.8533 mean=0.8801 + r=0.05 cos=0.9127 0.8550 mean=0.8839 + r=0.1 cos=0.9129 0.8573 mean=0.8851 + r=0.2 cos=0.9127 0.8573 mean=0.8850 + r=0.4 cos=0.9131 0.8573 mean=0.8852 +=== fast-adaptive@2.18 === + r=0.02 cos=0.9242 0.8212 mean=0.8727 + r=0.05 cos=0.9245 0.8213 mean=0.8729 + r=0.1 cos=0.9242 0.8213 mean=0.8728 + r=0.2 cos=0.9242 0.8213 mean=0.8728 + r=0.4 cos=0.9243 0.8212 mean=0.8727 +R_SWEEP_DONE -- cgit v1.2.3