110 lines
4.3 KiB
YAML
110 lines
4.3 KiB
YAML
# MI355X Kimi-K2.6 (MXFP4 experts, FP8 KV) 4-node 2P1D disaggregation recipe — narrow-prefill EP8
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# + wide-decode EP16 (mirrors the DSV4-Pro Oren config: wide EP only helps decode).
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#
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# Two prefill engines (EP8, one node each; the router fans requests across both) +
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# one decode engine (EP16) spanning 2 nodes. Still one logical P/D pair per role
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# group, 4 nodes total. nodes-per-engine = ceil(TP/8): prefill 8->1, decode 16->2,
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# so the launcher emits cross-node --nnodes/--node-rank/--dist-init-addr for the
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# decode engine only. Prefill EP8 keeps MoE all-to-all INTRA-node (XGMI); decode
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# gets wide EP16 across nodes. KV (prefill TP8 -> decode TP16) is carried over mori.
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#
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# Kimi-specific bits vs the DSV4-Pro EP16 recipe: split attention backends
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# (aiter prefill / triton decode), the Kimi model env + parsers, and the Kimi
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# model path. Everything else (2P1D topology, mori a2a + KV, dist init) is shared.
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#
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# Consumed by:
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# * scripts/ci/slurm/process_result.py reads `resources` and
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# `backend.sglang_config` (TP/EP/DP + worker counts) for the summary table.
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# * scripts/ci/slurm/launch_mi355x.sh reads `runtime`, `bench`, `model`, `mtp`.
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resources:
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prefill_workers: 2
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decode_workers: 1
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backend:
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sglang_config:
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prefill:
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tensor-parallel-size: 8
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expert-parallel-size: 8
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data-parallel-size: 8
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decode:
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tensor-parallel-size: 16
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expert-parallel-size: 16
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data-parallel-size: 16
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# Model-specific docker env + sglang server args (written verbatim via
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# model_flags.sh). Each server arg + value is a SEPARATE list item.
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model:
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env:
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SGLANG_USE_AITER: 1
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SGLANG_ROCM_FUSED_DECODE_MLA: 0
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server_args:
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- --model-loader-extra-config
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- '{"enable_multithread_load": true}'
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- --reasoning-parser
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- kimi_k2
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- --tool-call-parser
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- kimi_k2
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runtime:
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image: lmsysorg/sglang-rocm:v0.5.15.post1-rocm720-mi35x-20260715
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# Kimi uses split attention backends (aiter prefill / triton decode), not a
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# single --attention-backend.
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prefill_attention_backend: aiter
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decode_attention_backend: triton
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# RoCE HCAs (8/node) for mori MoE all-to-all AND the P->D KV transfer.
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ib_devices: rdma0,rdma1,rdma2,rdma3,rdma4,rdma5,rdma6,rdma7
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# Wide-EP MoE all-to-all backend (cross-node expert dispatch/combine).
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moe_a2a_backend: mori
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# KV P->D transfer backend (mori for both a2a and KV on this cluster).
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kv_transfer_backend: mori
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# Cross-node torch-distributed NIC for the wide decode engine's dist init.
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dist_socket_ifname: eno0
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# rocm720 0715 image needs the ROCm-7.0.0-alpha path OFF (validated).
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rocm700a: 0
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prefill_port: 30025
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decode_port: 30026
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prefill_bootstrap_port: 8998
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decode_bootstrap_port: 9001
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lb_port: 8000
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# Base defaults; the wide_ep block overrides mem-fraction / max-req per role.
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mem_fraction_static: 0.90
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page_size: 256
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max_running_requests: 256
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chunked_prefill_size: 131072
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swa_full_tokens_ratio: 0.1
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# Per-role wide-EP tuning (starting point cloned from the validated DSV4-Pro
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# EP16 run; may need Kimi-specific retuning). Prefill and decode differ.
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wide_ep:
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kv_cache_dtype: fp8_e4m3
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prefill_mem_fraction_static: 0.8
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decode_mem_fraction_static: 0.85
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prefill_chunked_prefill_size: 131072
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prefill_max_running_requests: 1024
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decode_max_running_requests: 1024
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common_extra_flags: "--moe-dense-tp-size 1 --enable-dp-lm-head --decode-log-interval 100 --watchdog-timeout 3600 --load-balance-method round_robin"
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prefill_extra_flags: "--context-length 9217 --max-total-tokens 262144"
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decode_extra_flags: "--disable-cuda-graph"
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prefill_extra_env:
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MORI_MAX_DISPATCH_TOKENS_PREFILL: 8192
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MORI_MAX_DISPATCH_TOKENS_DECODE: 256
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SGLANG_MORI_NUM_MAX_DISPATCH_TOKENS_PER_RANK: 16384
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decode_extra_env:
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MORI_MAX_DISPATCH_TOKENS_DECODE: 64
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MORI_MOE_MAX_INPUT_TOKENS_DECODE: 332
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SGLANG_MORI_NUM_MAX_DISPATCH_TOKENS_PER_RANK: 128
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bench:
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# bench_serving --max-concurrency sweep; one result JSON per concurrency.
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concurrencies: [1, 8, 16, 32, 64, 128, 256]
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num_prompts_factor: 4 # num-prompts = concurrency * factor
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random_range_ratio: 1.0
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# Correctness gate run through the PD path before the perf sweep (full GSM8K,
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# 8-shot, accuracy > 0.92). Mirrors the single-node Kimi-K2.6 eval threshold.
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accuracy:
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enabled: true
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num_shots: 8
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num_questions: 1319 # full GSM8K test set
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threshold: 0.92
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