launcher/recipes/glm52-hybrid-fp8-mxfp4/recipe.toml

# GLM-5.2 Hybrid FP8+NVFP4+MXFP4 — 4× DGX Spark (GB10, sm_121a), TP=4, DCP=4.
#
# Model: aidendle94/GLM-5.2-Hybrid-FP8-MXFP4
#   → https://huggingface.co/aidendle94/GLM-5.2-Hybrid-FP8-MXFP4
#
# Mixed-precision GLM-5.2 checkpoint:
#   - Attention (MLA projections, indexer):  block-FP8
#   - Dense MLPs & shared experts:           NVFP4 (group-16)
#   - Routed experts, layers 3–77:           MXFP4 (e2m1 + ue8m0 per-32)
#   - MTP draft experts (layer 78):          MXFP4
#   - Norms, gates, lm_head, MTP dense:      BF16
#
# Image: aidendle94/sparkrun-vllm-ds4-gb10:production-hybrid-1.2
#   vLLM + b12x GB10 kernels with hybrid_mxfp4_ct quant config,
#   index-authoritative loader, NVFP4 KV cache with per-token scaling,
#   sparse-MLA CKV gather, boot-time kernel prewarm.
#
# PREREQUISITES:
#   - Models cached on every node via HF_HOME:
#       huggingface-cli download aidendle94/GLM-5.2-Hybrid-FP8-MXFP4
#       (382 GiB, requires free disk on each node)
#
# REFERENCE:
#   https://forums.developer.nvidia.com/t/glm-5-2-hybrid-fp8-nvfp4-mxfp4-optimal-runtime-recipe/377598
#   https://huggingface.co/aidendle94/GLM-5.2-Hybrid-FP8-MXFP4

engine = "vllm"
name = "GLM-5.2 Hybrid FP8-MXFP4 (vLLM)"
docker_image = "sparkrun-vllm-ds4-gb10:glm52"
model = "aidendle94/GLM-5.2-Hybrid-FP8-MXFP4"
required_nodes = 4
tensor_parallel_size = 4
pipeline_parallel_size = 1
distributed_backend = "mp"
shm_size = "10gb"
docker_image_dir = "glm52"

entrypoint = ["vllm", "serve"]

args = [
    # Model name
    "--served-model-name", "glm52",
    # General
    "--trust-remote-code",
    "--reasoning-parser", "glm45",
    "--tool-call-parser", "glm47",
    "--enable-auto-tool-choice",
    "--enable-prefix-caching",
    # DCP (Decode Context Parallelism)
    "--decode-context-parallel-size", "4",
    "--dcp-comm-backend", "ag_rs",
    # Engine backends
    "--attention-backend", "B12X_MLA_SPARSE",
    # HF overrides — 78-char index_topk_pattern (GLM-5.2 MLP/expert routing)
    "--hf-overrides", """
'{"index_topk_pattern":"FFFSSSFSSSFSSSFSSSFSSSFSSSFSSSFSSSFSSSFSSSFSSSFSSSFSSSFSSSFSSSFSSSFSSSFSSSFSSS"}'""",
    # KV cache — NVFP4 with per-token scaling (nvfp4_ds_mla)
    "--kv-cache-dtype", "nvfp4_ds_mla",
    "--kv-cache-memory-bytes", "5500000000",
    # Context & batch config
    "--max-model-len", "262144",
    "--max-num-batched-tokens", "2048",
    "--max-num-seqs", "3",
    "--gpu-memory-utilization", "0.89",
    # Speculative decode — MTP k=4 with adaptive depths
    # {{mtp_draft}} is substituted per-node with the resolved HF cache path
    # (refs/main → latest snapshot) so symlinks resolve correctly.
    "--speculative-config", """
'{"model":"{{mtp_draft}}","method":"mtp","num_speculative_tokens":4,"draft_attention_backend":"B12X_MLA_SPARSE","adaptive_speculative_tokens_window":32}'""",
    # Compilation — FULL_AND_PIECEWISE with all custom ops, 8 capture sizes
    "--compilation-config", """
'{"cudagraph_mode":"FULL_AND_PIECEWISE","custom_ops":["all"],"cudagraph_capture_sizes":[1,2,3,4,5,6,8]}'""",
    # Timeout safety net (cold boot: ranks finish minutes apart)
    "--distributed-timeout-seconds", "3600",
    "--cpu-distributed-timeout-seconds", "3600",
]

# Persistent JIT/torch-inductor cache (avoids ~20 min recompilation on cold boot).
# `alias = "jit_cache"` resolves via [mount_aliases] in config.toml; if absent,
# falls back to host "~/.cache/jit" (expanded to /home/<ssh_user>/.cache/jit).
# `env` injects -e XDG_CACHE_HOME=/root/.cache/jit so vLLM/torch write there.
[[extra_mounts]]
alias = "jit_cache"
host = "~/.cache/jit"
container = "/root/.cache/jit"
env = "XDG_CACHE_HOME"

# MTP draft model — a subfolder of the main GLM-5.2 repo. Resolved at serve
# time, per node, from the HF cache (refs/main → latest snapshot), so the
# path survives `huggingface-cli download` updates without a fragile symlink.
# The recipe references {{mtp_draft}} in --speculative-config; the launcher
# substitutes the resolved full HF cache path per-node (no bind-mount — the
# HF cache is already mounted at /root/.cache/huggingface, so symlinks
# resolve correctly).
[[extra_mounts]]
repo = "aidendle94/GLM-5.2-Hybrid-FP8-MXFP4"
subfolder = "mtp-draft"
container = "mtp_draft"


[env]
# ── b12x suite ────────────────────────────────────────────────────────────
VLLM_USE_V2_MODEL_RUNNER = "1"
VLLM_USE_B12X_MOE = "1"
VLLM_USE_B12X_SPARSE_INDEXER = "1"
VLLM_DCP_SHARD_DRAFT = "1"
VLLM_DCP_GLOBAL_TOPK = "1"
VLLM_DSV4_INDEXER_SP = "1"

# ── MLA CKV gather (sparse gather for decode) ─────────────────────────────
VLLM_B12X_MLA_CKV_GATHER = "1"
VLLM_B12X_MLA_CKV_GATHER_MAX_TOKENS = "262144"
VLLM_B12X_MLA_DECODE_SPARSE_GATHER = "1"
VLLM_B12X_MLA_DECODE_GATHER_V2 = "1"

# ── Speculative decode ────────────────────────────────────────────────────
VLLM_ADAPTIVE_SPEC_DEPTHS = "2,4"

# ── NVFP4 KV cache ────────────────────────────────────────────────────────
VLLM_NVFP4_MLA_PER_TOKEN_SCALE = "1"

# ── Timeout safety net ────────────────────────────────────────────────────
VLLM_ENGINE_READY_TIMEOUT_S = "3600"
VLLM_EXECUTE_MODEL_TIMEOUT_SECONDS = "1800"
VLLM_ALLOW_LONG_MAX_MODEL_LEN = "1"

# ── MUST unset baked VLLM_PREFIX_CACHE_RETENTION_INTERVAL ─────────────────
# The image bakes a value that GLM-5.2's KV coordinator rejects.
# Empty string = unset at runtime.
VLLM_PREFIX_CACHE_RETENTION_INTERVAL = ""

# ── Architecture (aarch64/sm_121a DGX Spark) ──────────────────────────────
CUTE_DSL_ARCH = "sm_121a"
TORCH_CUDA_ARCH_LIST = "12.1a"

# ── JIT cache ──────────────────────────────────────────────────────────────
# Persisted via the [[extra_mounts]] jit_cache entry above: XDG_CACHE_HOME is
# injected from that mount, pointing at /root/.cache/jit (no hardcoded dupe).

# ── NCCL overrides ─────────────────────────────────────────────────────────
# Cluster config provides NCCL_IB_HCA, NCCL_IB_GID_INDEX, NCCL_SOCKET_IFNAME
# Launcher defaults: NCCL_IGNORE_CPU_AFFINITY=1, NCCL_NET=IB, NCCL_DEBUG=WARN
NCCL_IB_DISABLE = "0"             # enable IB (override launcher default)
NCCL_MAX_NCHANNELS = "4"
NCCL_MIN_NCHANNELS = "4"
NCCL_CUMEM_ENABLE = "0"

# ── Compute ────────────────────────────────────────────────────────────────
OMP_NUM_THREADS = "4"

# Volumes not needed — model is a Hugging Face Hub ID, downloaded via HF_HOME