# GLM-5.3-Flash NVFP4-lab RE-CUT on r39 (jovian-judgement tip 2026-09-21), # 2× DGX Spark, TP=2 — the E-track test lane. # # Purpose: does the lab's new tip (vLLM 9e5d1793fa3 + b12x c2dc1cf022) # fix the r38 b12x preparation-pool deadlock (BUG-2026-09-19) on 2x GB10, # and what does the RoCE traffic-class commit ("switched Spark fabrics") # change? Same model/config as the proven re-cut 2x lane (r35, 91/100 @512K) # — only the engine image moves (r35-glm53 -> r39-glm53, dir # jovian-judgement-r39, profile r39). Everything else identical so the # bench is a clean engine A/B. # # Note: r39 moved the external-dep contract (all cmake pins + DeepSelect), # so the image builds from docker-images/jovian-judgement-r39 (its own # fetch-deps.sh + deps.lock); the r27/r35 dir keeps the r38-era contract. # # Structure (verified from model.safetensors.index.json, identical to the # Spark checkpoint): `model.language_model.layers.*` with SPLIT GDN naming # (q/k/g_a/g_b/f_a/f_b/b_proj + hc_* hybrid-conv), a `model.visual.*` # tower (skipped via --language-model-only), and the MTP head embedded at # layer 45 (eh_proj/enorm/hnorm) — no separate drafter download. Same # loader path as the Spark lane: the JJ fork lineage (r35) maps it natively # (no KeyError); r38 is out — b12x preparation-pool deadlock on 2x GB10. # # Image: jovian-judgement:r35-glm53 + VLLM_DISABLED_KERNELS (the small GDN # mxfp8 GEMMs reject flashinfer cutlass' min n/k=128 — routed to the b12x # Mxfp8 backend; proven on the Spark lanes 162/176 + 161/176). # # Memory: 199.4 GB / 2 ranks ≈ 93 GiB weights/node at GMU 0.88 (107.0 GiB) # — no KV pin (auto-sizing takes the remaining ~10 GiB; a 10 GiB pin as in # the old 186 GB cut would overshoot the tighter budget). # # PREREQUISITES: weights on each node's LOCAL hub (the NAS disk died # 2026-09-19): /home/kilork/hf-local, ~/.cache/huggingface symlink # re-pointed per node. Re-cut re-download in progress on all 4 nodes # (dgx1 is the tightest: ~40 GiB left after the model). engine = "vllm" name = "GLM-5.3-Flash NVFP4-lab re-cut (vLLM, 2x Spark, MTP-3, r39 tip)" docker_image = "jovian-judgement:r39-glm53" docker_image_dir = "jovian-judgement-r39" build_profile = "r39" entrypoint = ["vllm", "serve"] model = "local-inference-lab/GLM-5.3-Flash-NVFP4" parent_model = "zai-org/GLM-5.3-Flash" required_nodes = 2 tensor_parallel_size = 2 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: 0.88 = 107.0 GiB, below any # realistic free-memory dip on GB10's 121.63 GiB (#48140). "--gpu-memory-utilization", "0.88", # no KV pin: ~93 GiB weights/rank. 512K config (2026-09-20, benched): # max-num-seqs 4 + prefill budget 2048 free the profile-run peak so an # explicit 10 GiB KV pin fits (auto-sizing would take ~2.4 GiB); pool # 1,406,229 tokens = 2.68x a 512K request (matches the Spark 2x lane). # Host memory after boot: ~2-3 GiB available/node (weights+KV+graphs), # a 12 GiB pin is the realistic ceiling if ever needed. "--block-size", "256", "--max-model-len", "524288", "--max-num-seqs", "4", "--max-num-batched-tokens", "2048", "--kv-cache-memory-bytes", "10737418240", "--enable-chunked-prefill", "--async-scheduling", "--enable-prefix-caching", # B12X sparse-MLA (required for head-512 on sm_12x) "--attention-backend", "B12X", # pure I/O loader (baked into the r27-lineage images; ~1 min off local NVMe) "--load-format", "instanttensor", # 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 (layer 45, in-checkpoint). The draft # model's vllm_config takes its attention backend from the SPECULATIVE # config, not the global flag — B12X mirrors the main model. "--speculative-config", """ '{"method":"mtp","num_speculative_tokens":3,"attention_backend":"B12X"}'""", "--language-model-only", "--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 the # r27 lanes since the 2026-09-08 A/B (4x: decode +31..+90%, quality 160 vs # 155). Needs the RoCE fabric; single-node serves skip it silently. VLLM_ENABLE_ROCE_ALLREDUCE = "1" # Route mxfp8 linears away from flashinfer cutlass (rejects small GDN GEMMs: min n/k=128) VLLM_DISABLED_KERNELS = "FlashInferCutlassMxfp8LinearKernel" # FlashInfer JIT compiles at first boot with N parallel nvcc jobs -> # OOM-killed on GB10 while weights+KV are resident; cap the ninja jobs. MAX_JOBS = "2" # NoPE-MLA rope-pad runtime gate (mod baked into the image lineage) 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" # JIT caches persist per-node across serves (cold /root/.cache per container # = ~20 min flashinfer/torch recompile every serve) [[extra_mounts]] host = "~/sm121-cache/glm53-jit-121f/b12x" container = "/root/.cache/b12x" [[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"