Files
vh 91bda3c480 fv-ml1: complete the cutover — rename, renumber, DNS, and the LiteLLM repoint
The box is physically at Fountain Valley, renamed, renumbered onto 10.251/16,
and serving inference again. This lands the repo half of that.

Host: hostname ana-ml2 -> fv-ml1, pinned to 10.251.50.54 by a dnsmasq
reservation so the address the runbook, DNS and LiteLLM all assume is the
address it actually has. Its headscale node is renamed too.

The sweep ran from scripts/fv-ml1-rename-sweep.sh, whose allowlist is the
reason this diff touches current-state files and not the record. Dated
persistent-memory entries, archival-memory and incident notes still say
ana-ml2 in 31 and 62 places respectively, because that is what the box was
when those things happened. Rewriting them would make the history lie.

LiteLLM was the load-bearing piece and needed more than the api_base sed the
runbook describes. Twenty api_base entries repointed, but a grep-and-verify
pass also caught a LIVE pass_through_endpoints target for the scalar-judge
reward route still on the old address -- an api_base-only substitution would
have left it dead. Four prose references describing current state were
repointed as well; one historical note recording where a hand-test was run
is deliberately left pointing at 10.250.50.54.

Two facts in the server tables were wrong and are corrected here. The site is
Fountain Valley, not Anaheim. And the box has FOUR RTX PRO 6000 Blackwell
Max-Q, not two -- verified by nvidia-smi -L and independently by PCI
enumeration of four GB202GL devices. That is 391 GB of VRAM rather than 196,
which changes what fits on it.

DNS: fv-ml1, fv-ml1-bmc and fv-gw added under the fv site via the piggyback
approach, scriberr re-homed, and the ana-ml2 records removed. Applied to all
three resolvers. The BMC record carries a warning that its 802.1q VLAN tag
must stay disabled -- it shipped tagging VLAN 250 into an untagged port,
which made it invisible to every network-side diagnostic and is the reason
it appeared dead through several cable changes.

Verified end to end: summarizer and sec both answer through the Anaheim
gateway across the mesh to FV seats on different ports.
2026-09-12 22:00:50 -07:00

78 lines
2.6 KiB
YAML

# SGLang — alternative LLM serving engine, stood up on fv-ml1 to bench
# head-to-head against vLLM on the same model + hardware.
#
# Bench-oriented (not yet a permanent service): point it at the SAME checkpoint
# vLLM serves, give it an EXCLUSIVE GPU (fair benches need no co-tenants), and
# drive both engines with one common load generator. If SGLang wins decisively,
# promote this to a real stack; otherwise tear it down after the bench.
#
# SGLang 0.5.13 supports our formats on Blackwell sm_120: compressed-tensors
# (the llm-compressor NVFP4 W4A4 output), fp8, modelopt_fp4, petit_nvfp4, and
# fp4_e2m1 KV. So SGLANG_QUANT can be compressed-tensors (NVFP4) or fp8.
#
# All tunables in .env — edit that, not this file.
services:
sglang:
image: lmsysorg/sglang:${SGLANG_VERSION}
container_name: sglang
restart: unless-stopped
ipc: host # SGLang needs large shared memory
ports:
- "${SGLANG_PORT}:30000"
volumes:
- /tank/aimodels:/aimodels:ro # NVFP4 checkpoints + HF cache live here
environment:
- HF_HOME=/aimodels/huggingface
- HF_HUB_CACHE=/aimodels/huggingface/hub
command:
- python3
- -m
- sglang.launch_server
- --model-path
- ${SGLANG_MODEL} # e.g. /aimodels/nvfp4/granite-4.1-8b-NVFP4-W4A4-test
- --served-model-name
- ${SGLANG_SERVED_NAME}
- --host
- 0.0.0.0
- --port
- "30000"
- --quantization
- ${SGLANG_QUANT} # compressed-tensors (NVFP4) | fp8
- --kv-cache-dtype
- ${SGLANG_KV_DTYPE:-fp8_e4m3}
- --context-length
- ${SGLANG_CTX_LEN:-65536}
- --mem-fraction-static
- ${SGLANG_MEM_FRACTION:-0.85} # SGLang's analog of vLLM gpu-memory-utilization
- --tp
- "1"
deploy:
resources:
reservations:
devices:
- driver: nvidia
device_ids:
- "${SGLANG_GPU_ID}" # exclusive GPU for a fair bench
capabilities:
- gpu
healthcheck:
test: ["CMD-SHELL", "python3 -c \"import urllib.request,sys; sys.exit(0 if urllib.request.urlopen('http://localhost:30000/health').status==200 else 1)\""]
interval: 30s
timeout: 10s
retries: 3
start_period: 300s
networks:
- tnet
labels:
- homepage.group=AI Systems
- homepage.name=SGLang (bench)
- homepage.icon=mdi-speedometer
- homepage.description=SGLang serving — vLLM bench comparison (fv-ml1)
- homepage.href=http://10.251.50.54:${SGLANG_PORT}
networks:
tnet:
name: traefik-net
external: true