PP kit + Strix research: Qwen3.8-27B RPC split (Dankclaw head / Dankserver worker)

- scripts: serve-pp-head/worker, envs, systemd units, pp-test.sh orchestrator, pp-bench.py
- head design verified in b10433 source + live 4B smoke test:
  * no --device with --rpc (RPC device silently dropped otherwise)
  * default device selection = [RPC0, ROCm0] (HIP registers before Vulkan)
  * default split proportional to reported free mem = ~20/80 here, pin 1,1
  * -dio required for large model over RPC
- docs: qwen3.8-strix-optimizations (ranked no-quant-downgrade levers,
  quant landscape, 2026-08-16 test matrix), PP deployment runbook,
  index updates, Dankclaw Improvements corrections (Vulkan0, no power_profile sysfs)
- worker built at 9b05354ec in /home/dank/llama-cpp-rpc worktree (CUDA+RPC)
- second head build build-vulkan-rpc (HIP off) for backend A/B

docs/Pipeline Parallelism/index.md

@@ -6,7 +6,7 @@ tags:
   - pipeline-parallelism
   - distributed
   - index
-timestamp: 2026-08-14
+timestamp: 2026-08-15
 ---
 
 # Pipeline Parallelism
@@ -58,6 +58,14 @@ graph LR
 - [[Expected Performance]] — estimated tokens per second for a 27B Q8 split
   across an RTX 3090 and a Strix Halo NUC over 1/2.5/10 GbE.
 
+## Deployment
+
+- [[Qwen3.8 PP Deployment]] — the real Qwen3.8-27B split: head on Dankclaw
+  (Strix), worker on Dankserver (RTX 3090), b10433 on both sides, scripts in
+  `scripts/`, morning-of test runbook. Verified gotchas: no `--device` with
+  `--rpc`, default split is proportional to reported free memory (pin 1,1),
+  the iGPU side defaults to the ROCm backend.
+
 ## Sample Scripts
 
 - [[Sample Script Set]] — a two-node llama.cpp RPC split of