# r27 4x DCP4 cell — clone of the r18 4x-dcp4 recipe (2026-09-05, 161/176, # KV 4.84M @ 16 GiB) retargeted at the r27 engine (2026-09-07 night, all 4 # nodes free after the pluto switch). Same model/flags/KV pin. # GLM-5.3-Flash NVFP4 — local-inference-lab quant (vLLM) — 2× DGX Spark, TP=2. # # local-inference-lab mixed quant: NVFP4 routed experts (layers 3–44, # group-16) + MXFP8 MTP experts (layer 45) + W4A4 input scales. Best agent # quant so far: tool-eval-bench 89/100 (vs 85 LibertAIDAI, 90 official FP8). # Model: https://huggingface.co/local-inference-lab/GLM-5.3-Flash-NVFP4 # (~186 GB → 92.72 GiB weights/node; KV pinned at 10 GiB, see below) # # Image: glm53-flash-nvfp4-lab:local (docker-images/glm53-flash-nvfp4-lab/ — # day-0 arm64 image + NoPE-MLA mod + the four FujitsuPolycom lab-checkpoint # patches: model naming shim, modelopt MTP namespace fix, persistent_topk # CC-12.x guards). Their launch config is mirrored below. # PROVENANCE: https://github.com/FujitsuPolycom/glm53-flash-tp2-spark # (Apache-2.0; see patches/UPSTREAM.md) + forum 381350 #41. # # Deviations from their launch script (intentional): # * no --kda-prefill-backend flashkda (needs their base-image patch — skipped) # * --kv-cache-dtype fp8_ds_mla instead of `fp8` (same packed layout; this # spelling is what the NoPE-MLA mod booted with on the LibertAIDAI stack) # * --language-model-only + no mm-renderer patch/env (text-only) # * no bundled NCCL/LD_PRELOAD, no NCCL_* fabric block (our switched fabric # is configured via [nccl.ds4] + launcher GID auto-detect) # * no --moe-backend marlin: their proven stack uses the default backend for # THIS quant and reports clean evals. Sanity-check output for token loops # anyway (the silent FP4 MoE corruption gotcha) before trusting a new node. # * flashinfer autotune disabled via --kernel-config (their proven boot); # VLLM_ENGINE_READY_TIMEOUT_S stays high regardless. # # Boot success markers (engine log, in order): # "Model loading took 92.72 GiB" → "[quantprobe] ... algo=MXFP8" (MTP fix # active; algo=None means broken) → "GPU KV cache size: 1,164,369 tokens" → # "Application startup complete". ~700 s sequential weight load. # # Test request: chat completions need "chat_template_kwargs":{"reasoning_effort" # :"low"} — omitted/other values select MAX reasoning effort (empty content on # short max_tokens). # # Optional: instanttensor loader (~30 s weight load vs ~700 s): # FROM glm53-flash-nvfp4-lab:local + pip install --no-deps --no-build-isolation # instanttensor==0.1.9, then add --load-format instanttensor (--no-deps is # required: resolution would downgrade the image's NCCL). # # PREREQUISITES: weights cached on both nodes: # [A/B CELL 2026-09-03] ship recipe verbatim, checkpoint swapped to the lab # non-Spark NVFP4 (isolates checkpoint from image lineage vs the lab-image cell). # [BISECT A2 2026-09-03] EXACT 90/100 recipe (236ce5a) + instanttensor + JIT # mounts, on the CURRENT eugr-patched image. Isolates image lineage from the # execution-env/flag cluster (AOT/V2/b12x/card-env). Comparator: 124/138. # GLM-5.3-Flash NVFP4-Spark — local-inference-lab quant with the speculative # layers embedded — 2× DGX Spark, TP=2. # # local-inference-lab/GLM-5.3-Flash-NVFP4-Spark (rev 06972cdee7280cec849aedf05a02062b3e870246): # NVFP4 routed experts (layers 3+, group-16) + NVFP4 MTP expert layer in the # separate model-mtp-0000x.safetensors shards (mtp_tokens: 5 per their # lil.yaml), amax/nonexpert/inputscales side shards, Glm5NextForConditionalGeneration. # THE "DSpark speculative embedded" checkpoint — no separate DFlash2 download # needed; lil.yaml: default_speculator mtp, dflash2_tokens 7 (r12 doc fr: their # standalone-Q: MTP:3 254 tok/s CC1, 333 Sieve, 94 steps/s). # # Image: glm53-flash-nvfp4-lab:local (same proven day-0 arm64 stack + NoPE-MLA # mod + modelopt MTP namespace patch used by the 92/100 lab lane). The MTP # layer here is NVFP4 (not MXFP8) — the quantprobe marker may print # algo=NVFP4/- different; algo=None = patch missed (fall back to 4p67 image). # # Deviations from lab (unchanged mechanics): same fabric/env/GMU/KV pinning. # lil.yaml launch mirrors: block 256, disable_flashinfer_autotune, mm data # mode — our text-only flags identical to glm53-flash-nvfp4-lab. # # Boot markers: "Model loading took ~XX GiB" → "[quantprobe] ..." → # "GPU KV cache size" → "Application startup complete". # # PREREQUISITES: weights on the NAS hub (175 GiB): hf download local-inference-lab/GLM-5.3-Flash-NVFP4-Spark engine = "vllm" name = "GLM-5.3-Flash NVFP4 (r27 img, lab ckpt, 4x DCP4)" docker_image = "glm53-jovian-r27:local" # r27 clone-at-pin build (docker-images/glm53-jovian-r27) docker_image_dir = "glm53-jovian-r27" # Required: the clean r12 image follows the solar contract (ENTRYPOINT [] # + CMD bash), so the recipe carries the entrypoint (the old day-0-based # r12 image had ["vllm","serve"] baked in, which is why this was absent # until the clean rebuild). entrypoint = ["vllm", "serve"] model = "local-inference-lab/GLM-5.3-Flash-NVFP4" required_nodes = 4 tensor_parallel_size = 4 pipeline_parallel_size = 1 distributed_backend = "mp" shm_size = "32gb" args = [ # Stable served name — quant-agnostic (shared across glm53 quants) "--served-model-name", "glm53", "--trust-remote-code", "--distributed-executor-backend", "mp", # GMU is ONLY a startup guardrail here (KV pool is pinned below): 0.90 # demands 109.46 GiB free on GB10's 121.63 GiB, but driver reserve + # page cache routinely leave ~108.5 -> flaky # "Free memory ... less than desired" boot deaths (this was the class # of the old "54-second death"), and post-crash reruns see ~106.6 GiB. # 0.82 = 99.7 GiB, below any realistic dip; does NOT change what gets # allocated (weights ~93 + pinned KV 10 + activations). # 0.88 (not 0.90): the startup admission gate is free-mem >= GMU*total # (107.0 vs 109.5 GiB); ~12 GiB of starting vLLM processes + docker # daemon can push the 0.90 check under the line (2026-09-08, #48140). # KV is explicitly pinned (--kv-cache-memory-bytes) so capacity is unchanged. "--gpu-memory-utilization", "0.88", # Pinned 10 GiB KV (≈1.16M tokens) — GMU sizing has no headroom at # 92.72 GiB weights/node; pinning also keeps warmup off the swap path "--kv-cache-memory-bytes", "17179869184", # 16 GiB: 4x NVFP4 has the headroom (47.1 GiB weights/node vs 108 usable); 2x stays 10 "--decode-context-parallel-size", "4", "--cp-kv-cache-interleave-size", "4", # No --kv-cache-dtype: let the r12 fork pick its default (the explicit # fp8 / fp8_ds_mla both failed auto-selection on this build). # The GLM5Next model wires the B12X sparse-MLA backend (sm_120/sm_121) # when the global backend is B12X (glm5next/nvidia/attention.py: # _select_sparse_backend); the sm12x auto-priority list never offers it # (FLASHINFER_MLA_SPARSE_SM120 only supports head 576, not GLM's 512). "--attention-backend", "B12X", # pure I/O loader (kept across every config; 171 GB in ~5.5 min vs ~16 NFS) "--load-format", "instanttensor", # [R17 FULL-CLUSTER TEST] lil manifest backends (quality gate: hardmode # must stay ≥88; r12-era this cluster dropped it to 74 — r17 may carry # the fix through — one boot decides). "--block-size", "256", # FINAL BISECT (2026-09-03, hardmode 176pt, r17 img): # knobs-only 87: d0 c1 24.1, d8192 23.8 # +moe b12x 88: d0 c1 23.5, d8192 26.6 <- SHIP (2 pts d8192) # +linear b12x 44: W4A4 linear kernel destroys numerics (param-precision 0%) # +align 88: but d0 c1 18.6 (-5) — perf-negative, dropped # (all three together = 44-74; the lab needs its private packed package) "--max-model-len", "524288", "--max-num-seqs", "16", "--max-num-batched-tokens", "4096", "--enable-chunked-prefill", "--async-scheduling", "--enable-prefix-caching", # NO --disable-custom-all-reduce here: in the r27 fork the RoCEnante # adapter is gated on the custom-all-reduce enable flag # (use_roce_allreduce = use_custom_allreduce && VLLM_ENABLE_ROCE_ALLREDUCE). # On 2x/4x 1-GPU-node clusters vLLM's own CUDA-IPC custom AR is functionally # inert (no cross-node P2P), so dropping the flag only opens the b12x path; # the b12x-PCIe branch stays off (VLLM_ENABLE_PCIE_ALLREDUCE defaults False). # Their proven boot: no flashinfer autotune, no CuTe-DSL warmup "--kernel-config", """ '{"enable_cutedsl_warmup":false,"enable_flashinfer_autotune":false}'""", # Built-in MTP draft, 3 tokens (the r12-qualified "mtp:3" mode — their # x86 numbers: 254 tok/s CC1, 2.37 accept; the checkpoint embeds up to # 5 via the model-mtp-0000x shards but 3 is the verified depth). This is # the checkpoint's own MTP head (Glm5NextMTPModel), NOT dspark — dspark # is the DeepSeek-V4 family's mechanism; GLM's other r12 mode is # dflash2:7 with a separate trained draft checkpoint. # The draft model's vllm_config takes its attention backend from the # SPECULATIVE config, not the global flag (eagle/utils.py: # _make_eagle_draft_vllm_config) — B12X here mirrors the main model's. "--speculative-config", """ '{"method":"mtp","num_speculative_tokens":3,"attention_backend":"B12X"}'""", "--language-model-only", # MTP + CUDA graphs degrades OUTPUT QUALITY on the glm53 day-0 dev build # (forum #381350/#44, CONFIRMED by A/B bench 2026-08-28: same seed/flags, # graphs on = 89/100, eager = 92/100; decode unchanged 28.4 t/s @ c1, # c2 -7%, TTFT +1.6s). The b12x glm52 stack does NOT need this (its # graphs+MTP combo benches clean at 100/100) — bug is build-specific. # graphs moved BEFORE tool-call-parser; enforce-eager removed for the # r17-graphs test (bisect A2 was 88/100 eager; graphs+MTP fix is public # in r17 refs? verify by bench). "--tool-call-parser", "glm47", "--enable-auto-tool-choice", "--reasoning-parser", "glm45", ] [env] HF_HUB_OFFLINE = "1" # RoCEnante (b12x one-shot RoCE all-reduce/all-gather) — default on for r27 # lanes since the 2026-09-08 A/B (4x DCP4: decode +31..+90%, quality 160 vs # 155, prefill within noise; specs/tech-architecture/glm53-recipe-state.md, # history/night-shifts/2026-09-07.md). Needs the CX-7 RoCE fabric (all of # ours); single-node serves skip it silently. Caps default 2MB AR / 16MB AG. VLLM_ENABLE_ROCE_ALLREDUCE = "1" # FlashInfer JIT (mxfp8_gemm_cutlass_sm120, ~12 kernels) compiles at first # boot with 12 parallel nvcc jobs -> OOM-killed (code 137) on GB10's # 121 GB unified while the 93 GB weights + 10 GB KV pin are resident. # MAX_JOBS caps ninja parallelism so the JIT fits in the remaining ~20 GB. MAX_JOBS = "2" # NoPE-MLA rope-pad runtime gate (mod baked into the image) VLLM_MLA_NOPE_PAD_ROPE = "1" VLLM_ENGINE_READY_TIMEOUT_S = "3600" # Upstream launch-script env (memory + compile knobs) PYTORCH_CUDA_ALLOC_CONF = "expandable_segments:True" VLLM_USE_AOT_COMPILE = "0" VLLM_USE_STANDALONE_COMPILE = "1" VLLM_USE_FLASHINFER_SAMPLER = "1" VLLM_USE_BREAKABLE_CUDAGRAPH = "0" TORCH_USE_RTLD_GLOBAL = "1" VLLM_NO_USAGE_STATS = "1" # Architecture (aarch64 / sm_121a DGX Spark) TORCH_CUDA_ARCH_LIST = "12.1a" FLASHINFER_CUDA_ARCH_LIST = "12.1f" CUTE_DSL_ARCH = "sm_121a" CMAKE_CUDA_ARCHITECTURES = "121" OMP_NUM_THREADS = "2" [[extra_mounts]] host = "~/sm121-cache/glm53-jit-121f/b12x" container = "/root/.cache/b12x" # JIT caches persist per-node across serves (was: cold /root/.cache per # container -> ~20 min flashinfer/torch recompile every serve). The host # dirs are shared between lanes of the same arch — each cache # self-namespaces by its engine version key internally. [[extra_mounts]] host = "~/sm121-cache/jit-121f/flashinfer" container = "/root/.cache/flashinfer" [[extra_mounts]] host = "~/sm121-cache/jit-121f/torchinductor" container = "/root/.cache/torchinductor" [[extra_mounts]] host = "~/sm121-cache/jit-121f/vllm" container = "/root/.cache/vllm"