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Ember plan: the ADLX offset-not-watts rule in the AMD knob row; the 0.3.14 next-cut table (c896a44, 0aea6e8, the Ember 2 UI and playbook commits)

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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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igneum-labs 2026-10-06 16:45:39 +00:00
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12
docs/plans/ember-tune.md
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@ -29,7 +29,7 @@ prompt) for both knobs; off, it measures only.
| Vendor | Power limit | Core clock cap | Memory clock | How | Rights |
|---|---|---|---|---|---|
| NVIDIA | `nvidia-smi -pl <W>`, percent of the default, inside `power.min_limit` and `power.max_limit` | `nvidia-smi -lgc 0,<MHz>`, percent of `clocks.max.gr`; `-rgc` = unlocked | never touched (`-lmc` is not used); read back as `clocks.mem` | directly when the engine is elevated, else the one-prompt helper (`<seq> pl <W>`, `<seq> lgc <MHz>`, `<seq> rgc` in `sweep/cmd.txt`) | administrator, so only with Power control on |
| AMD | `igneum-gpu-telemetry --card N --set-plimit <offset>` (0 = default, -20 = 80%), inside the `tune` line's `plimit_range` (PC 1's 9070 XT: -30 to 10, so 70% is the floor) | `--set-gmax` only when the `tune` line's `gmax_range` is absolute MHz (floor 0 or above); on RDNA 4 the range is an offset from stock (-500 to 1000 on PC 1) and the clock knob stays closed until the stock clock is known; `--reset` for the default point | not settable through ADLX on RDNA 4; read back as `mclk_mhz`, and a step whose mean memory clock falls under 95% of the baseline's is marked and cannot win | the helper, one process per request, exit 0 and a `tune ... ok` line | none on Windows (ADLX manual tuning); root on Linux, so measure only there |
| AMD | `igneum-gpu-telemetry --card N --set-plimit <offset>` (0 = default, -20 = 80%), inside the `tune` line's `plimit_range` (PC 1's 9070 XT: -30 to 10, so 70% is the floor). RULE (run 6, 6 October 2026): ADLX reports the limit as an OFFSET, never watts, so an AMD step is applied on the helper's acknowledgement (`Run::applied`: a card with no limit readback confirms on `acked`), and the draw comes from the telemetry stream (`sample_telemetry`), never from a limit readback; `limit_w` is 0 for every AMD card by design | `--set-gmax` only when the `tune` line's `gmax_range` is absolute MHz (floor 0 or above); on RDNA 4 the range is an offset from stock (-500 to 1000 on PC 1) and the clock knob stays closed until the stock clock is known; `--reset` for the default point | not settable through ADLX on RDNA 4; read back as `mclk_mhz`, and a step whose mean memory clock falls under 95% of the baseline's is marked and cannot win | the helper, one process per request, exit 0 and a `tune ... ok` line | none on Windows (ADLX manual tuning); root on Linux, so measure only there |
| Apple | none | none | none | measure only | none |
Vendor limits are never exceeded and the floor is never undercut: the plan clamps every point (`Limits::clamp_clock`,
@ -284,6 +284,16 @@ After the run (nvidia-smi, the engine gone, the installed miners not yet back):
## 8a. Next-cut notes (for the 0.3.12 shipper)
For the 0.3.14 cut (6 October 2026, after run 6), on ember-tune:
| Commit | What | Where |
|---|---|---|
| bd7fcf4 | AMD: a power step with no limit readback is applied on the acknowledgement (run 6 aborted the 9070 XT's ladder at step 1 on "card reports 0 W") | ember.rs `Run::applied` + test |
| 200362a | `task_exe` prefers the installed exe for every path that is not itself an install candidate; the helper's `reregister` verb; the clock ladder and floor to 45%; a chosen point on the floor says so; the fleet page's team rows | powertask.rs, ember.rs, engine.rs, site |
| 5165de7, 9fba504, 5b0968f | Ember 2's Settings (goal, price, climb), £/day and the curve on the card; the playbook's AMD watts source and kit-7 preference; run 6 notes | ui, relay/playbooks, docs |
Earlier (shipped in 0.3.12 and 0.3.13 unless marked):
| Commit | What | Where |
|---|---|---|
| b671c8b | every `quit:` names its source; Power control alone decides; no cap at start under `--sweep` | main.rs, server.rs, engine.rs (separable) |