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1.7 KiB
1.7 KiB
Ascend NPU Ring-SP Performance (Wan2.1-T2V-1.3B)
This page reports Ring-SP performance on Ascend NPU with torch_npu==2.10.0.
- Baseline config:
ulysses=1, ring=1(short:u1r1) - Ring-SP config:
ulysses=1, ring=2(short:u1r2)
Benchmark Setup
- Model:
Wan2.1-T2V-1.3B-Diffusers - Prompt:
"a cat is playing piano" - Framework command:
sglang generate - Runtime:
torch_npu==2.10.0
Generate Commands
Baseline (u1r1)
sglang generate --model-path /nas/disk1/Wan2.1-T2V-1.3B-Diffusers \
--prompt "a cat is playing piano" --num-gpus 1 --ring-degree 1 \
--save-output
Ring-SP (u1r2)
sglang generate --model-path /nas/disk1/Wan2.1-T2V-1.3B-Diffusers \
--prompt "a cat is playing piano" --num-gpus 2 --ring-degree 2 \
--save-output
Benchmarks
Benchmark Disclaimer
These numbers are from one fixed setup and one prompt case. Actual performance may vary by model settings, environment, and workload.
Stage Time Breakdown
| Stage / Metric | u1r2 (s) |
u1r1 baseline (s) |
Speedup |
|---|---|---|---|
| InputValidation | 0.0003 | 0.0002 | 0.67x |
| TextEncoding | 3.5936 | 3.5820 | 1.00x |
| LatentPreparation | 0.0007 | 0.0055 | 7.86x |
| TimestepPreparation | 0.0008 | 0.0007 | 0.88x |
| Denoising | 121.2788 | 239.2580 | 1.97x |
| Decoding | 13.8685 | 16.4969 | 1.19x |
| Total (Pixel data generated) | 141.86 | 266.50 | 1.88x |
Summary
- With
torch_npu==2.10.0, Ring-SP (u1r2) runs successfully on NPU for this case. - End-to-end generation time improves from
266.50sto141.86s(1.88x). - The main gain comes from
DenoisingStage(1.97x), while decoding also improves (1.19x).