a65849b77d
The A3 910C has 16 dies (8 cards x 2 dies/card), and vllm-ascend's tensor-parallel-size / data-parallel-size address DIES, not cards. The old configs (2/4, 4/2, 8/1) all used only 8 dies = 4 cards, leaving half the node idle. Switch to configs that use all 16 dies, and add per-TP parameter overrides since each TP has a very different per-die memory budget. Why the old configs were wrong: - A3 TP=4 (4 dies) is the per-CARD equivalent of H20 TP=4 (4 cards), not a fair comparison. An A3 node has 2x the compute of an 8-card H20, so benchmarking at 8 dies understates the A3 and never exercises the cross-card / full-NVLink topology. - TP*DP must equal 16 to use all dies on the A3 node. New PARALLEL_CONFIGS (all use 16 dies): - TP=4 DP=4: 4 dies/replica x 4 replicas, ~39 GiB weights/die - TP=8 DP=2: 8 dies/replica x 2 replicas, ~35 GiB weights/die - TP=16 DP=1: 16 dies/replica x 1 replica, ~17.5 GiB weights/die Per-TP overrides (mirrors the glm52 6c81183 pattern): - TP4: max_model_len=32768 max_num_seqs=128 (tight KV cache) - TP8: max_model_len=65536 max_num_seqs=256 (balanced) - TP16: max_model_len=131072 max_num_seqs=256 (max KV cache) Changes: - config.env: PARALLEL_CONFIGS -> "4 4"/"8 2"/"16 1"; add TP4_/TP8_/TP16_ env vars for per-TP gpu_mem_util/max_model_len/max_num_seqs. - start_vllm_docker.sh: case "$TP" overrides the three params after sourcing config.env, so the actual launch args match the per-TP budget. - run_adaptive_concurrency_add16.sh: engine_build_server_args gets the same case "$TP" so the recorded server_cmd.txt stays consistent with the real launch.
147 lines
7.5 KiB
Bash
147 lines
7.5 KiB
Bash
# TP×DP matrix experiment for DeepSeek-V4-Flash on Ascend 910C (8 NPUs / 16 dies)
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# using vLLM-Ascend.
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# Tests vLLM with three parallel configurations:
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# TP=2, DP=4 -> 2 dies per replica, 4 replicas
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# TP=4, DP=2 -> 4 dies per replica, 2 replicas
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# TP=8, DP=1 -> 8 dies, no data parallelism
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#
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# Platform: ascend_910c (see platforms/ascend_910c.env).
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# Host: 910c.1 / NPU-NODE61, openEuler 22.03 SP4 aarch64, driver 25.5.2, CANN 9.0.0.
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#
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# DeepSeek-V4-Flash w8a8-mtp weights are present at /mnt/models/DeepSeek-V4-Flash-w8a8-mtp
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# (downloaded from ModelScope Eco-Tech/DeepSeek-V4-Flash-w8a8-mtp, ~280 GiB, 70 shards).
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EXPERIMENT="dsv4_910c_vllm_tp_dp_matrix"
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MODEL_NAME="DeepSeek-V4-Flash"
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# Real DSV4-Flash w8a8-mtp directory (verified present & chown'd to shishi).
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MODEL_PATH="${MODEL_PATH:-/mnt/models/DeepSeek-V4-Flash-w8a8-mtp}"
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SERVED_MODEL_NAME="dsv4"
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VLLM_PORT="${VLLM_PORT:-30052}"
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# Dedicated container name so this experiment never touches other 910c runs.
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CONTAINER_NAME="vllm-ascend-dsv4-910c"
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# Python interpreter for the benchmark client inside the vllm-ascend container.
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CONTAINER_PYTHON="/usr/local/python3.12.13/bin/python3"
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# vllm-ascend image. Use the general v0.23 A3 image for DSV4 (the GLM5.2-tuned
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# variant carries GLM-specific patches and is NOT compatible with DSV4).
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# Verified present locally: quay.io/ascend/vllm-ascend:v0.23.0rc1-a3-openeuler
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USE_DOCKER="${USE_DOCKER:-1}"
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DOCKER_IMAGE="${DOCKER_IMAGE:-local/vllm-ascend:0.23-a3-dsv4-sglang}"
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# Benchmark client Docker image. vLLM's image does not include sglang.bench_serving;
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# reuse the vllm-ascend container itself for the client via `docker exec` (see
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# run_adaptive_concurrency_add16.sh), so this is only used if USE_DOCKER_CLIENT=1
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# with an external sglang image. Default off on 910c.
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DOCKER_CLIENT_IMAGE="${DOCKER_CLIENT_IMAGE:-lmsysorg/sglang:latest}"
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USE_DOCKER_CLIENT="${USE_DOCKER_CLIENT:-0}"
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# Device selection. We mount all 8 cards (16 dies) via --device /dev/davinci0..15
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# in start_vllm_docker.sh. ASCEND_VISIBLE_DEVICES is kept for parity with the
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# shared library but the explicit --device flags are the authoritative path on
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# this host (Ascend Docker Runtime injection was unreliable here).
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export ASCEND_VISIBLE_DEVICES="${ASCEND_VISIBLE_DEVICES:-0,1,2,3,4,5,6,7}"
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export CUDA_VISIBLE_DEVICES="${CUDA_VISIBLE_DEVICES:-0,1,2,3,4,5,6,7}"
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# Runtime working directory for logs, pid files, and tmp.
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RUNTIME_BASE="${RUNTIME_BASE:-${SCRIPT_DIR}/runtime}"
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# Parallel configurations to test. Format: "TP DP"
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# A3 910C has 16 dies (8 cards x 2 dies/card). TP/DP address dies, so TP*DP=16
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# uses all dies. DSV4-Flash w8a8 weights ~280 GiB total, sharded across TP dies:
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# TP=4 DP=4 -> 4 dies/replica x 4 replicas (39 GiB/die, tight KV cache)
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# TP=8 DP=2 -> 8 dies/replica x 2 replicas (35 GiB/die, balanced)
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# TP=16 DP=1 -> 16 dies/replica x 1 replica (17.5 GiB/die, max KV cache)
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# Note: A3 TP=4 == H20 TP=4 per-card-equivalent (A3 has 2 dies/card).
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# TP=2, DP=4 -> 4 dies/replica x 4 replicas (smallest TP, most replicas)
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# TP=4, DP=2 -> 4 dies/replica x 2 replicas
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# TP=8, DP=1 -> 8 dies/replica x 1 replica (largest TP, max weight sharding)
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if [[ -n "${PARALLEL_CONFIGS_STR:-}" ]]; then
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declare -a PARALLEL_CONFIGS=()
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for pair in $PARALLEL_CONFIGS_STR; do
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PARALLEL_CONFIGS+=("${pair//,/ }")
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done
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else
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declare -a PARALLEL_CONFIGS=(
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"4 4"
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"8 2"
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"16 1"
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)
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fi
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# vLLM-Ascend server settings for DSV4-Flash (w8a8-mtp).
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# Notes:
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# - KV cache dtype fp8 is supported on 910C; fall back to fp16 if the image rejects it.
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# - block-size 128 matches Ascend page semantics (910C favors 128).
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# - MAX_MODEL_LEN: DSV4-Flash supports up to 1M context; cap at 131072 for the
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# matrix sweep (extend to 1M via matrix.json once TP=8 is verified).
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# - gpu-memory-utilization maps to NPU HBM fraction on vllm-ascend (0.9).
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GPU_MEMORY_UTILIZATION="${GPU_MEMORY_UTILIZATION:-0.9}"
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KV_CACHE_DTYPE="${KV_CACHE_DTYPE:-fp8}"
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BLOCK_SIZE="${BLOCK_SIZE:-128}"
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MAX_MODEL_LEN="${MAX_MODEL_LEN:-131072}"
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MAX_NUM_SEQS="${MAX_NUM_SEQS:-256}"
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# Per-TP parameter overrides (applied in start_vllm_docker.sh via case $TP).
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# DSV4-Flash w8a8 weight per die = ~280GiB / TP. Each die has 64GB HBM.
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# TP=4: ~39 GiB/die weights -> 25 GiB for KV cache; cap context to avoid OOM
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# TP=8: ~35 GiB/die weights -> 29 GiB for KV cache; balanced
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# TP=16: ~17.5 GiB/die weights -> 46 GiB for KV cache; full context
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TP4_GPU_MEMORY_UTILIZATION="${TP4_GPU_MEMORY_UTILIZATION:-0.9}"
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TP4_MAX_MODEL_LEN="${TP4_MAX_MODEL_LEN:-32768}"
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TP4_MAX_NUM_SEQS="${TP4_MAX_NUM_SEQS:-128}"
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TP8_GPU_MEMORY_UTILIZATION="${TP8_GPU_MEMORY_UTILIZATION:-0.9}"
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TP8_MAX_MODEL_LEN="${TP8_MAX_MODEL_LEN:-65536}"
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TP8_MAX_NUM_SEQS="${TP8_MAX_NUM_SEQS:-256}"
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TP16_GPU_MEMORY_UTILIZATION="${TP16_GPU_MEMORY_UTILIZATION:-0.9}"
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TP16_MAX_MODEL_LEN="${TP16_MAX_MODEL_LEN:-131072}"
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TP16_MAX_NUM_SEQS="${TP16_MAX_NUM_SEQS:-256}"
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# vLLM-Ascend-specific launch flags injected by start_vllm_docker.sh.
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# attention backend for 910C: use the fused/atb attention path. Adjust per image.
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VLLM_ASCEND_ATTENTION_BACKEND="${VLLM_ASCEND_ATTENTION_BACKEND:-atb}"
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# DSV4-Flash-specific server args (passed through to vllm serve in
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# start_vllm_docker.sh). These are REQUIRED for DSV4 -- GLM-5.2 does not need them.
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# --tokenizer-mode deepseek_v4 : DSV4 custom tokenizer
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# --tool-call-parser deepseek_v4 : DSV4 tool-call parser
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# --enable-auto-tool-choice : enable automatic tool choice
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# --reasoning-parser deepseek_v4 : DSV4 reasoning parser
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# --enable-expert-parallel : shard 256 experts across EP ranks
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# --quantization ascend : use modelslim w8a8 quantization path
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# --safetensors-load-strategy prefetch: prefetch shards for faster load
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# --async-scheduling : overlap CPU scheduling with NPU compute
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# MTP speculative decoding via SPEC_CONFIG
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DSV4_TOKENIZER_MODE="${DSV4_TOKENIZER_MODE:-deepseek_v4}"
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DSV4_TOOL_CALL_PARSER="${DSV4_TOOL_CALL_PARSER:-deepseek_v4}"
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DSV4_REASONING_PARSER="${DSV4_REASONING_PARSER:-deepseek_v4}"
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DSV4_QUANTIZATION="${DSV4_QUANTIZATION:-ascend}"
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DSV4_SAFETENSORS_LOAD_STRATEGY="${DSV4_SAFETENSORS_LOAD_STRATEGY:-prefetch}"
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# MTP speculative config (1 speculative token). JSON string, kept single-quoted
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# in the launcher to avoid shell mangling.
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DSV4_SPEC_CONFIG="${DSV4_SPEC_CONFIG:-{\"num_speculative_tokens\": 1, \"method\": \"mtp\", \"enforce_eager\": true}}"
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DSV4_COMPILATION_CONFIG="${DSV4_COMPILATION_CONFIG:-{\"cudagraph_mode\": \"FULL_DECODE_ONLY\"}}"
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DSV4_ADDITIONAL_CONFIG="${DSV4_ADDITIONAL_CONFIG:-{\"ascend_compilation_config\":{\"enable_npugraph_ex\":true,\"enable_static_kernel\":false},\"enable_cpu_binding\": true,\"enable_dsa_cp\": true,\"multistream_overlap_shared_expert\":true}}"
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DSV4_ENABLE_EXPERT_PARALLEL="${DSV4_ENABLE_EXPERT_PARALLEL:-1}"
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DSV4_ENABLE_ASYNC_SCHEDULING="${DSV4_ENABLE_ASYNC_SCHEDULING:-1}"
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# Model-loader extra config (multithread load, 128 threads) to speed up 280GiB load.
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DSV4_MODEL_LOADER_EXTRA_CONFIG="${DSV4_MODEL_LOADER_EXTRA_CONFIG:-{\"enable_multithread_load\": \"true\", \"num_threads\": 128}}"
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# Dataset used by sglang.bench_serving --dataset-name random.
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DATASET_PATH="${DATASET_PATH:-${ROOT_DIR}/datasets/ShareGPT_V3_unfiltered_cleaned_split.json}"
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# Matrix and concurrency rules are defined in matrix.json by default.
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MATRIX_FILE="${MATRIX_FILE:-${SCRIPT_DIR:-.}/matrix.json}"
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MATRIX_MODE="${MATRIX_MODE:-Y}"
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export CONCURRENCY_SAMPLES="${CONCURRENCY_SAMPLES:-2}"
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SCENARIO_TIMEOUT_S="${SCENARIO_TIMEOUT_S:-1800}"
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GPU_MEM_SAMPLE_INTERVAL_S="${GPU_MEM_SAMPLE_INTERVAL_S:-1}"
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DRY_RUN="${DRY_RUN:-0}"
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GRID_LIMIT="${GRID_LIMIT:-0}"
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