Sm90 mega moe on sgl dev

[qiushixiaoyu]

MegaMoE SM90 Perf Summary

Flash vs normal baseline

batch	status	fused avg us	baseline avg us	speedup	timing ranks	note
1	0	207.5	491.1	2.37x	8/8
2	0	235.2	614.5	2.61x	8/8
4	0	350.4	817.8	2.33x	8/8
8	0	423.8	938.1	2.21x	8/8
16	0	485.8	1056.9	2.18x	8/8
32	0	494.6	1090.2	2.20x	8/8
64	0	495.2	1070.6	2.16x	8/8
128	0	508.1	1062.2	2.09x	8/8
256	0	524.6	1169.4	2.23x	8/8
512	0	874.0	1237.8	1.42x	8/8
1024	0	1637.5	2091.4	1.28x	8/8
2048	0	2856.1	3572.2	1.25x	8/8
4096	0	5213.8	6375.6	1.22x	8/8
8192	0	9812.0	11974.9	1.22x	8/8

Flash vs low-latency baseline

batch	status	fused avg us	baseline avg us	speedup	timing ranks	note
1	1	172.6	199.0	1.15x	8/8	nonzero exit after timing
2	1	239.8	272.2	1.14x	8/8	nonzero exit after timing
4	1	349.5	390.4	1.12x	8/8	nonzero exit after timing
8	1	444.6	473.0	1.06x	8/8	nonzero exit after timing
16	1	497.0	514.9	1.04x	8/8	nonzero exit after timing
32	1	520.1	515.4	0.99x	8/8	nonzero exit after timing
64	1	505.4	521.0	1.03x	8/8	nonzero exit after timing
128	1	510.1	542.6	1.06x	8/8	nonzero exit after timing
256	1	530.0	616.5	1.16x	8/8	nonzero exit after timing

Pro vs normal baseline

batch	status	fused avg us	baseline avg us	speedup	timing ranks	note
1	0	415.4	908.9	2.19x	8/8
2	0	572.5	1275.4	2.23x	8/8
4	0	861.6	1850.9	2.15x	8/8
8	0	1256.6	2715.6	2.16x	8/8
16	0	1519.5	3169.6	2.09x	8/8
32	0	1562.2	3273.9	2.10x	8/8
64	0	1580.5	3277.9	2.07x	8/8
128	0	1586.9	3322.0	2.09x	8/8
256	0	1615.5	3360.5	2.08x	8/8
512	0	3021.2	3461.9	1.15x	8/8
1024	0	4773.5	5365.8	1.12x	8/8
2048	0	7856.6	8744.8	1.11x	8/8
4096	0	13650.2	15095.4	1.11x	8/8
8192	0	25454.1	28132.8	1.11x	8/8

Pro vs low-latency baseline

batch	status	fused avg us	baseline avg us	speedup	timing ranks	note
1	1	420.6	466.5	1.11x	8/8	nonzero exit after timing
2	1	587.1	635.1	1.08x	8/8	nonzero exit after timing
4	1	849.6	951.0	1.12x	8/8	nonzero exit after timing
8	1	1255.4	1344.4	1.07x	8/8	nonzero exit after timing
16	1	1529.1	1601.2	1.05x	8/8	nonzero exit after timing
32	1	1586.4	1676.0	1.06x	8/8	nonzero exit after timing
64	1	1567.8	1692.2	1.08x	8/8	nonzero exit after timing
128	1	1597.1	1727.5	1.08x	8/8	nonzero exit after timing
256	1	1611.9	1795.9	1.11x	8/8	nonzero exit after timing

Benchmark DeepSeekV4Flash

Shape	Track	off tok/s	on tok/s	on/off	off RR/MC	on RR/MC	on SLO status
3500/1500	SLO-Compliant	4778.35	5007.36	1.05x	4.00/28	4.00/28	OK
3500/1500	Max-Throughput	4669.26	5027.19	1.08x	4.00/28	4.00/28	OK
32000/1500	SLO-Compliant	11373.42	14708.10	1.29x	2.00/12	2.20/20	OK
32000/1500	Max-Throughput	12742.43	15359.18	1.21x	2.00/20	2.20/24	VIOLATE
128000/1500	SLO-Compliant	13014.58	15362.97	1.18x	1.00/4	1.00/4	OK
128000/1500	Max-Throughput	15116.68	18694.88	1.24x	1.00/12	1.60/12	VIOLATE

OP Accuracy

correctness：28 scenarios PASS，max diff 0.0006

E2E Accuracy

MegaMoE	Accuracy	Invalid	Latency(s)	Output tok/s	Throughput vs off
off	0.956	0.000	206.924	578.897	1.00x
on	0.952	0.000	151.799	788.357	1.36x

[Fridge003]

@qiushixiaoyu Can we upstream this change to original DeepGemm? So that we can use it more conveniently in the future

[qiushixiaoyu]

@qiushixiaoyu Can we upstream this change to original DeepGemm? So that we can use it more conveniently in the future

@Fridge003
ok. I already opened a PR(323) against the upstream repository, but it contained some changes from sgl-project/DeepGEMM. I’ll revise the patch and strip out those project-specific modifications. That said, I’ve heard it’s unlikely to be accepted into deepseek-ai/DeepGEMM.

[yz-tang]

When enable --run-low-latency-baseline, Will there be a performance degradation?

[qiushixiaoyu]

When enable --run-low-latency-baseline, Will there be a performance degradation?

I don’t think so. This is only for comparing performance against the low-latency baseline. While testing, I found that the performance with small batch sizes is not very stable. I’m still investigating it.

[yz-tang]

@qiushixiaoyu Can you share your sglang start cmd? I try use this PR, but sglang output is error。
My sglang start cmd:

SGLANG_DSV4_FP4_EXPERTS=0 \
sglang serve \
  --trust-remote-code \
  --model-path /data1/DeepSeek-V4-Flash-FP8 \
  --tp 8 \
  --moe-a2a-backend megamoe \
  --tool-call-parser deepseekv4 \
  --reasoning-parser deepseek-v4 \
  --host 0.0.0.0 \
  --port 8055

[qiushixiaoyu]

@qiushixiaoyu Can you share your sglang start cmd? I try use this PR, but sglang output is error。 My sglang start cmd:

SGLANG_DSV4_FP4_EXPERTS=0 \
sglang serve \
  --trust-remote-code \
  --model-path /data1/DeepSeek-V4-Flash-FP8 \
  --tp 8 \
  --moe-a2a-backend megamoe \
  --tool-call-parser deepseekv4 \
  --reasoning-parser deepseek-v4 \
  --host 0.0.0.0 \
  --port 8055

@yz-tang
export SGLANG_OPT_USE_DEEPGEMM_MEGA_MOE=1
export SGLANG_OPT_FIX_MEGA_MOE_MEMORY=1
export SGLANG_OPT_DEEPGEMM_MEGA_MOE_NUM_MAX_TOKENS_PER_RANK=4096
python -m sglang.launch_server
--trust-remote-code
--model-path "${MODEL_PATH}"
--tp 8
--ep-size 8
--chunked-prefill-size 4096
--moe-a2a-backend deepep
--moe-runner-backend deep_gemm
--deepep-mode auto
--cuda-graph-max-bs 32
--max-running-requests 32
--speculative-algo EAGLE
--speculative-num-steps 3
--speculative-eagle-topk 1
--speculative-num-draft-tokens 4
--enable-metrics
--host 0.0.0.0
--port "${SERVER_PORT}"
--mem-fraction-static 0.75
--tool-call-parser deepseekv4
--reasoning-parser deepseek-v4

I still have an SGLang change PR that hasn’t been merged yet.
sgl-project/sglang@5776a42