gpu-fleet: July 8 optimization sweep — parallel 2 fleet-wide, 128K ctx on NVIDIA, LiteLLM timeout fixes

- All GPUs: --parallel 1 → 2 (6 concurrent slots, was 3)
- .8 RTX 3090: ctx 256K→128K, VRAM 96%→83%, turbo4 KV cache
- .110 RTX 5070: ctx 256K→128K, ubatch 4096→512 (was inverted), VRAM 90%→77%, q4_0 KV
- .15 Strix Halo: parallel 1→2, 256K ctx (41GB free), q8_0 KV, AMD metrics via /sys/class/drm
- LiteLLM: gemma timeout 25→120s, qwen timeout 40→90s, syslog-auto (qwen) 40→90s
- Agent configs: context_length 262144 for syslog-auto, 131072 for direct qwen/gemma
- Updated health-check operation, agent config implications, benchmark table (fixed model↔GPU mapping)
This commit is contained in:
root
2026-07-08 17:25:42 +00:00
parent f6e8791352
commit 776df418ca
5 changed files with 149 additions and 29 deletions
+42 -17
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@@ -5,8 +5,9 @@ description: >
Manages the GPU inference fleet across all hosts. Handles model deployment,
registration, health checks, LiteLLM sync, agent key management, GPU
saturation watchdog, Prometheus/Grafana monitoring, and self-healing.
Current as of 2026-06-30 post-migration: nginx routes /v1 → LiteLLM,
router runs behind LiteLLM on :9000 (internal-only).
Current as of 2026-07-08: context reduced to 128K on NVIDIA GPUs, parallel 2
on all GPUs, LiteLLM timeouts tuned (gemma 25→120s, qwen 40→90s), router fully
deprecated — nginx routes /v1 → LiteLLM directly.
agent: abiba
triggers:
- on model add/remove
@@ -63,21 +64,21 @@ triggers:
│ CT 8 │ │ CT 110 │ │ CT 15 │ │ pi (.24) │
│ RTX 3090 │ │ RTX 5070 │ │ Strix Halo│ │ GPU Monitor │
│ 24GB │ │ 12GB │ │ 64GB UMA │ │ :9100 │
│ │ │ │ llama-srv │ │ Watchdog │
128K ctx │ │ 128K ctx │ │ 256K ctx │ │ Watchdog │
│ qwen3.6 │ │ gemma-4-12b │ │ ornith35B │ │ Prometheus │
│ 27B-code │ │ :8090 │ │ :8080 │ │ exporter │
│ :8090 │ │ :9400 (exp) │ │ :9400(exp)│ │ :9401 │
│ 27B-code │ │ :8080 │ │ :8080 │ │ exporter │
│ :8080 │ │ :9400 (exp) │ │ :9400(exp)│ │ :9401 │
│ :9400 │ └─────────────┘ └───────────┘ └──────────────┘
└──────────┘
```
## Current Model Assignments
## Current Model Assignments (2026-07-08)
| Model | GPU | Host | VRAM | Status |
|-------|-----|------|------|--------|
| qwen3.6-27B-code | RTX 3090 | .8 (llm-gpu) | 23.4/24GB | ✅ healthy |
| gemma-4-12b | RTX 5070 | .110 (ocu-llm) | 11.2/12.2GB | ✅ healthy |
| ornith-1.0-35b | Strix Halo Vulkan | .15 (amdpve) | 22.7/64GB | ✅ healthy |
| Model | GPU | Host | VRAM | Ctx | KV Cache | Parallel | Batch/Ubatch | Status |
|-------|-----|------|------|-----|----------|----------|-------------|--------|
| qwen3.6-27B-code | RTX 3090 | .8 (llm-gpu) | 20.3/24GB (83%) | 128K | turbo4 | 2 | 512/512 | ✅ healthy |
| gemma-4-12b | RTX 5070 | .110 (ocu-llm) | 9.4/12.2GB (77%) | 128K | q4_0 | 2 | 2048/512 | ✅ healthy |
| ornith-1.0-35b | Strix Halo Vulkan | .15 (amdpve) | 24.4/64GB (35%) | 256K | q8_0 | 2 | 2048/512 | ✅ healthy |
## Operations
@@ -121,7 +122,19 @@ triggers:
7. Document keys in knowledge graph
### list
Show full fleet status: GPUs, models, VRAM, active requests, circuit breakers, keys
Show full fleet status: GPUs, models, VRAM, context windows, parallel slots, active requests, circuit breakers, keys
### health-check
1. Check GPU hardware: nvidia-smi (.8, .110) + amdgpu sysfs (.15 via /sys/class/drm/card0/device/)
2. Check llama-server processes: `ps aux | grep llama-server` on all 3 hosts
3. Check LiteLLM: `curl http://192.168.68.116/health` (expect "I'm alive!")
4. Check LiteLLM models: `curl -H "Authorization: Bearer $MASTER_KEY" http://192.168.68.116/v1/models`
5. Check LiteLLM timeouts: `grep -n 'timeout:' /opt/inference-harness/litellm_config.yaml`
- gemma-4-12b: 120s, qwen3.6-27B: 90s, ornith-1.0-35b: 120s
- global request_timeout: 300s, nginx proxy_read_timeout: 600s
6. Check AMD metrics: `curl http://192.168.68.15:9400/metrics` (Radeon 8060S, util%, VRAM, temp, power)
7. Check port conflicts: verify only one llama-server on :8080 per host
8. Verify agent keys: 9 keys in LiteLLM DB (`GET /key/list`)
## Agent Keys (LiteLLM DB — Current 2026-06-30)
@@ -168,9 +181,11 @@ If no SSH access, send Zulip DM via abiba-bot.
- **Router startup race**: Compose router.py doesn't call load_roster(). Reload thread sleeps 30s first.
Fix: trigger roster reload via SSH after restart, or rebuild image with startup load_roster().
- **LiteLLM /metrics**: Requires auth. Prometheus uses `/health/liveliness` as workaround.
- **VRAM**: RTX 3090 at ~9.6/24GB (60% free), RTX 5070 at ~6.5/12GB (46% free). Healthy.
- **RTX 3090 optimization**: `--parallel 2 --batch-size 4096` — doubled concurrent throughput.
- **RTX 5070 optimization**: Removed draft model freed ~2GB VRAM for vision tasks. `--parallel 2`.
- **VRAM (2026-07-08)**: RTX 3090 at 20.3/24GB (83%), RTX 5070 at 9.4/12.2GB (77%), Strix Halo at 24.4/64GB (35%). Context reduced from 256K→128K on NVIDIA GPUs freed ~3.3GB (.8) and ~1.5GB (.110).
- **All GPUs at `--parallel 2` (2026-07-08)**: Fleet serves 6 concurrent requests (was 3). 2× throughput.
- **RTX 3090 config**: `-c 131072 -ctk turbo4 -ctv turbo4 --parallel 2`. No explicit batch flags (512/512 default). Service: `/home/llmuser/llama-wrapper.sh`.
- **RTX 5070 config**: `--ctx-size 131072 --cache-type-k q4_0 --cache-type-v q4_0 --batch-size 2048 --ubatch-size 512 --parallel 2`. Ubatch fixed 4096→512 (was inverted — ubatch > batch killed prompt throughput). Service: `/home/llmuser/llama-wrapper.sh`.
- **LiteLLM timeout tuning (2026-07-08)**: gemma-4-12b 25→120s, qwen3.6-27B-code 40→90s, syslog-auto (qwen route) 40→90s. Nginx proxy_read_timeout: 600s. Global request_timeout: 300s. Config at `/opt/inference-harness/litellm_config.yaml`.
- **Strix Halo GPU**: Vulkan is the working backend (ROCm/HIP path abandoned — HSA runtime blocked on Debian 13). Build at `/root/llama.cpp/build-vk/`, commit `4fc4ec5` (2026-07-01), ggml 0.15.3 shared-lib arch. Mesa RADV 25.0.7, KHR_coopmat fast path active. ~70 tok/s gen, 532 tok/s prompt. Service: `ornith-server.service` on port 8080, 256K context, flash-attn + q8 KV.
- **Port conflict detection (2026-07-05)**: All 3 GPU wrappers now detect ghost processes squatting port 8080 before starting. `.8` and `.110` use inline pre-start check in `llama-wrapper.sh`; `.15` uses `/usr/local/bin/port-cleanup.sh` ExecStartPre. Replaces the blanket `pkill -9 -x llama-server` on .15 which would kill ALL llama-server instances regardless of port. Ghost detection was the root cause of .8 crash-looping for 27+ restarts (stale pid 25836 squatting 8080 after OOM kill).
- **Strix Halo thermal safeguard (2026-07-02)**: `ornith-server.service` has `-n 8192` (hard generation cap per request). Without it, `--predict` defaults to -1 (infinity) — a runaway request from .123 (Mumuni) decoded 39,868 tokens over 24 min, pushing Tctl to 98°C (crit 89.8°C) and throttling 70→29 t/s. The cap bounds worst-case generation to ~5 min. Do NOT remove `-n` without a replacement ceiling. Sustained load hits ~84°C even at 92s; the APU is fanless/low-flow. Clients MUST also set `max_tokens`.
@@ -185,8 +200,8 @@ If no SSH access, send Zulip DM via abiba-bot.
| GPU | Model | Gen tok/s | Prompt tok/s | Baseline | Samples |
|-----|-------|-----------|--------------|----------|---------|
| RTX 3090 (.8) | gemma-4-12b | 75 | 305 | 74 | 6 |
| RTX 5070 (.110) | qwen3.6-27B-code | 75 | 323 | 75 | 6 |
| RTX 3090 (.8) | qwen3.6-27B-code | 75 | 305 | 74 | 6 |
| RTX 5070 (.110) | gemma-4-12b | 75 | 323 | 75 | 6 |
| Strix Halo (.15) | ornith-1.0-35b | 70 | 532 | 70 | 6 |
Benchmarks run through LiteLLM proxy (192.168.68.116:4001) every 5 minutes.
@@ -194,3 +209,13 @@ Degradation alerts fire at 30% (warning) and 50% (critical) below baseline.
History stored at `/root/data/toks-history.json` with 7-day rolling window.
**Note (2026-07-01)**: Strix Halo prompt tok/s jumped 209→532 after Vulkan rebuild (cooperative-matrix fast path now active on GFX1151). Baseline may need re-calibration.
## Agent Config Implications (2026-07-08)
With NVIDIA GPUs at 128K context:
- Agents using `syslog-auto` (50/50 qwen+ornith): keep `context_length: 262144` — ornith supports it, Litellm fallbacks handle qwen overflow
- Agents using `qwen3.6-27B-code` directly: set `context_length: 131072` and `max_tokens: 4096` per thermal safety rule
- Agents using `gemma-4-12b` directly (auxiliary tasks): set `context_length: 131072`
- Compression threshold at 0.65: fires at ~170K for syslog-auto (262K ctx), ~85K for direct qwen/gemma (128K ctx)
- All Hermes clients MUST set `max_tokens: 4096` — first line of defense before server-side `-n 8192` cap
- Port 8080 is used on all 3 GPU hosts (not 8090 as previously documented)
+55 -7
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@@ -5,7 +5,7 @@ version: 1.0.0
description: >
Canonical known-good baseline for all Syslog Hermes agents. Captures the exact
configuration state, keys, workarounds, and audit procedure. When an agent's
configuration goes sideways, restore from this baseline. Last verified 2026-07-05.
configuration goes sideways, restore from this baseline. Last verified 2026-07-08. GPU context reduced to 128K on .8/.110, parallel 2 fleet-wide.
author: Abiba (pi agent)
---
@@ -22,12 +22,12 @@ done
## Agent Map
| Agent | CT | Node | IP | LiteLLM Key | LiteLLM Alias |
|-------|-----|------|-----|-------------|---------------|
| Tanko | 112 | amdpve | .122 | `sk-CggiHWlamQyShxWC3Hx6uw` | `tanko` |
| Mumuni | 114 | minipve | .123 | `sk-VrqCNlwUgzoNGOpikJ7nwQ` | `mumuni` |
| Tdunna | 111 | amdpve | ? | `sk-6sbCNjz2T6lTVDBdlNHXsA` | `tdunna` |
| Baggy | 113 | amdpve | ? | `sk-krnw_zGBwvvL5b7l2t-s-A` | `baggy` |
| Agent | CT | Node | IP | LiteLLM Key | LiteLLM Alias | Platform |
|-------|-----|------|-----|-------------|---------------|----------|
| Tanko | 112 | amdpve | .122 | `sk-CggiHWlamQyShxWC3Hx6uw` | `tanko` | Hermes |
| Mumuni | 114 | minipve | .123 | `sk-VrqCNlwUgzoNGOpikJ7nwQ` | `mumuni` | Hermes |
| Tdunna | 111 | amdpve | srv1079750 | `sk-Qvzi4uYQBhlSK_XstEhcyQ` | `tdunna` | **pi** |
| Baggy | 113 | amdpve | ? | `sk-krnw_zGBwvvL5b7l2t-s-A` | `baggy` | Hermes |
Access: `pct-run <CT_ID> <command>` — no IPs needed. GPU hosts (.8, .110, .15) use SSH.
@@ -45,6 +45,8 @@ Agent (systemd) → LITELLM_API_KEY → LiteLLM (:116/v1) → Router (:9000) →
## Config Pattern — Mandatory Fields
### For Hermes Agents (Tanko, Mumuni, Baggy)
Every agent's `/root/.hermes/config.yaml` (or `/home/jerome/.hermes/config.yaml`) MUST have:
### 1. Main Model
@@ -154,6 +156,51 @@ pct-run <CT> grep -A8 "vision:" /root/.hermes/config.yaml | grep api_key
# Must show both api_key: sk-... and api_key_env: LITELLM_API_KEY
```
### For pi Agents (Tdunna)
Tdunna (CT111) runs pi 0.80.3 via PM2 with the Zulip extension (router-worker architecture).
Config files: `~/.pi/agent/models.json`, `~/.pi/agent/settings.json`.
**models.json** — Must only list models authorized for the agent's LiteLLM key:
```json
{
"providers": {
"syslog-harness": {
"baseUrl": "http://192.168.68.116/v1",
"api": "openai-completions",
"apiKey": "sk-...",
"models": [
{ "id": "syslog-auto" },
{ "id": "ornith-1.0-35b" },
{ "id": "qwen3.6-27B-code" },
{ "id": "gemma-4-12b" }
]
}
}
}
```
**settings.json** — Always use `syslog-auto` as default:
```json
{
"defaultProvider": "syslog-harness",
"defaultModel": "syslog-auto"
}
```
**Validation**: Verify models match LiteLLM's authorized list:
```bash
curl -s http://192.168.68.116:4000/v1/models \
-H "Authorization: Bearer $(grep apiKey ~/.pi/agent/models.json | head -1 | cut -d'"' -f4)" \
| jq '.data[].id'
```
**Stuck worker detection**: In PM2 logs, `workers=[<id>:busy:N]` with growing N indicates
a stuck worker (model error, no `agent_end` emitted). Fix: correct models.json, delete
stale sessions from `~/.pi/agent/sessions/zulip/`, restart PM2.
**Service**: `pm2 restart koby-zulip`, health at `:9201/health`.
## Systemd Pattern
For agents where the gateway runs as a user service:
@@ -210,5 +257,6 @@ If they differ → ghost detected → kill ghost → start fresh.
| Date | Change |
|------|--------|
| 2026-07-08 | Tdunna: fixed model mismatch (qwen3.6-35B-A3B→syslog-auto), added pi-specific config section. Key updated to sk-Qvzi4uYQBhlSK_XstEhcyQ. Added Failure Mode #11 to zulip-adapter-lessons. |
| 2026-07-06 | Port conflict detection added to all 3 GPU wrappers. Consolidated health check script deployed. Zulip streaming edit_message enabled for Tanko/Mumuni. |
| 2026-07-05 | Baseline created. All 4 agents audited, master key removed, api_key workaround applied |
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@@ -5,7 +5,8 @@ description: >
Standard Hermes configuration template for Syslog Solution LLC agents.
Enforces shared infrastructure setup (Firecrawl, SearXNG, local models,
RA-H OS MCP) while keeping agent-specific API keys and model choices.
Updated 2026-06-30: new LiteLLM keys, nginx routing, router back online.
Updated 2026-07-08: GPU context reduced to 128K on NVIDIA (.8, .110),
parallel 2 on all GPUs, LiteLLM timeouts tuned, context_length guidance added.
---
## Maintains
@@ -92,7 +93,8 @@ model:
base_url: http://192.168.68.116/v1
api_key_env: LITELLM_API_KEY # Set in /etc/environment AND ~/.hermes/.env
max_tokens: 4096 # ⚠️ CRITICAL: Prevents unbounded generation
context_length: 262144 # Must match model's max context window
context_length: 262144 # For syslog-auto (ornith route supports 256K).
# Set 131072 if using qwen3.6-27B-code or gemma-4-12b directly.
fallback_providers:
provider: deepseek
@@ -123,8 +125,9 @@ compression:
enabled: true
model: gemma-4-12b # ⚠️ Must match auxiliary.compression.model
provider: harness
max_context_window: 262144 # Must match model's actual capacity
threshold: 0.65 # Fires at ~170K for 262K window (not 0.25!)
max_context_window: 262144 # For syslog-auto (ornith supports 256K).
# Set 131072 if using qwen or gemma directly.
threshold: 0.65 # Fires at ~170K for 262K window, ~85K for 128K
target_ratio: 0.30
protect_last_n: 40
hygiene_hard_message_limit: 350
@@ -236,6 +239,28 @@ The following MUST be identical across ALL profiles:
- `max_context_window: 262144` MUST match the model's actual capacity
- See `devops-hermes-compression` skill for full reference
### Rule 9: Default Model Must Be `syslog-auto` (All Agents)
- **Hermes agents**: `model.default: syslog-auto`, `custom_providers[0].model: syslog-auto`
- **pi agents**: `defaultModel: syslog-auto` in `settings.json`, first model in `models.json`
- `syslog-auto` is the LiteLLM routing model — it load-balances between ornith-1.0-35b
and qwen3.6-27B-code, with gemma-4-12b as fallback. Using it protects against:
- Model name typos that cause 403 errors and silent worker failures
- Single GPU downtime (routing falls back automatically)
- Key/model authorization mismatches
- **Exception**: Sub-agent profiles (Mumuni's 6 profiles) may specify explicit models
for specialized tasks, but MUST validate those models exist in the key's authorized list
### Rule 10: Validate Model IDs Before Deployment (pi Agents)
- After configuring a pi agent's `models.json`, verify every model ID:
```bash
curl -s http://192.168.68.116:4000/v1/models \
-H "Authorization: Bearer <AGENT_KEY>" | jq '.data[].id'
```
- All model IDs in `models.json` MUST appear in the LiteLLM response
- The agent's API key may have a SUBSET of the full model catalog — check per-key
- A non-existent model ID causes 403 errors that silently break the pi RPC worker
(no `agent_end` emitted, worker stays "busy", Zulip messages pile up unprocessed)
## Execution
1. **Check current config** — Read the target agent's config.yaml
+3 -1
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@@ -64,7 +64,7 @@ Before ANY update wave:
**Verify after Wave 2:**
- All VMs/CTs running: check via Proxmox API
- LiteLLM healthy: `curl localhost:4000/health/liveliness` (via CT 116)
- GPU servers responding: check :8080 on VM 101, VM 103; check ornith via router
- GPU servers responding: check :8080 on VM 101, VM 103; check ornith via router (http://192.168.68.116/health/unified — .15:8080 is firewalled to .116 only)
- Zulip agents connected: check Mumuni/Tanko gateway state
- Abiba PM2 processes online: `pm2 status`
@@ -120,6 +120,8 @@ Before Wave 1, snapshot these files:
/opt/home_stack/docker-compose.yml (VM 109 .7)
/opt/audiobookshelf/docker-compose.yml (VM 109 .7)
/root/.pi/agent/extensions/config.yaml (CT 100 .24)
/etc/systemd/system/ornith-server.service (amdpve .15)
/etc/systemd/system/llama-server.service (VM 101 .8, VM 103 .110)
```
Run: `mkdir -p /tmp/infra-update-backup-$(date +%Y%m%d) && rsync -av ...`
+20
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@@ -73,6 +73,25 @@ description: >
- **Fix**: If edit fails, send the response as a new message instead
- **Applies to**: pi extension (fixed), Hermes adapter (verify edit fallback exists)
### 11. Model-ID Mismatch Causes Silent Worker Failure (pi-specific)
- **Symptom**: User sends DM, sees placeholder, but never gets response. Worker stays
"busy" forever, accumulating pending replies (10+). Health endpoint shows green but
`messages_processed` stalls.
- **Root cause**: Agent's model config (`models.json` or `settings.json`) references a
model ID that doesn't exist in LiteLLM's authorized model list. Example: `qwen3.6-35B-A3B`
configured but LiteLLM only exposes `ornith-1.0-35b` under that key. pi's session
workers emit 403 on first prompt, then never recover because the error doesn't trigger
`agent_end` — worker stays `busy` and all subsequent messages pile up in the steer queue.
- **Detection**: Compare `~/.pi/agent/models.json` model IDs against `curl -H "Authorization: Bearer <KEY>" http://192.168.68.116/v1/models` output. A stuck worker shows
`workers=[<id>:busy:N]` with growing N in extension logs.
- **Fix**: (1) Update `models.json` to only include models from the authorized list.
(2) Set `defaultModel` to `syslog-auto` (safe routing model). (3) Delete stale session
JSONL files from `~/.pi/agent/sessions/zulip/`. (4) Restart PM2 process.
- **Prevention**: Use `syslog-auto` as default model for all agents — it handles model
routing and fallback automatically. Direct model IDs (`ornith-1.0-35b`, etc.) should
only be used when explicitly requested. Validate model IDs at agent setup time.
- **Applies to**: pi extension (Tdunna CT111, fixed 2026-07-08), any agent using `syslog-harness` provider
## Deployment Checklist
When deploying a new Zulip adapter, verify:
@@ -86,3 +105,4 @@ When deploying a new Zulip adapter, verify:
- [ ] `@all-bots` detected via configurable user_id
- [ ] Poll uses long-poll (not `dont_block=true` polling)
- [ ] Stuck/idle detection accounts for quiet periods
- [ ] Model IDs in config validated against `GET /v1/models` with actual API key