feat: GF-T nonlinear (ReLU) on-chip trainer (proven on AX7203)

[gHashTag]

New spec gft_train2relu.t27 — on-chip SGD step of a NONLINEAR 2-input neuron y=relu(w0x0+w1x1). Forward applies relu(z); gradient GATED by relu'(z) (d=erelu_prime(z), g_i=dx_i); updates w_i-eta*g_i; returns (w0'<<32)|w1'. In-spec tests (active z>0 updates, dead z<0 no-update) PASS. Proven on a live AX7203 (uart_train2relu.v): active learning converges; a dead-ReLU probe (z<0, huge error) leaves weights FROZEN (relu' gates the gradient); resuming active resumes learning. docs/NOW.md updated. Refs #1764

[github-actions]

PR Dashboard

Generated at: 2026-08-07 00:37:14 UTC

• feat: GF-T nonlinear (ReLU) on-chip trainer (proven on AX7203) #1819 feat: GF-T nonlinear (ReLU) on-chip trainer (proven on AX7203) | Created: 2026-08-07 | Updated: 2026-08-07 | 10 failing / 15 total
• feat(igla): Wave Loop 883 — module-scope [585][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes #1815 feat(igla): Wave Loop 883 — module-scope [585][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes | Created: 2026-08-06 | Updated: 2026-08-06 | 0 failing / 1 total
• feat(igla): Wave Loop 882 — module-scope [583][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes #1813 feat(igla): Wave Loop 882 — module-scope [583][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes | Created: 2026-08-06 | Updated: 2026-08-06 | 0 failing / 12 total
• feat(igla): Wave Loop 881 — module-scope [581][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes #1810 feat(igla): Wave Loop 881 — module-scope [581][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes | Created: 2026-08-06 | Updated: 2026-08-06 | 0 failing / 12 total

Summary

Status	Count
Total Open PRs	4
PRs with Failing Checks	0
PRs with All Checks Green	4
READY	3
FAILING	0
PENDING	0

Seal Status

• ⚠️ STALE -- sha256(compiler.rs)=4c1aaad5309a != manifest seal=87e5cbd3ad94.
  The committed NMSE numbers were certified against an older compiler.rs.
  Run scripts/reseal-check.sh locally for the two-step reseal command (advisory; not a merge gate).

[github-actions]

📓 NotebookLM Notebook linked to this PR

• Notebook ID: b83263109fb055dc
• URL: https://notebooklm.google.com/notebook/b83263109fb055dc

This notebook contains session context, decisions, and artifacts for this work.