Qwen/Qwen3-30B-A3B 跑在 A100-80G
Qwen/Qwen3-30B-A3B 在 A100-80G 上需要多少 GPU。
架构
| Field |
Value |
model_type |
qwen3_moe |
attention |
GQA (heads=32, kv_heads=4, hd=128) |
moe |
128 routed + 0 shared, top-8 |
权重
| Field |
Value |
Label |
| safetensors 字节 |
56.87 GB |
[已验证] |
| 参数量 |
30.5B |
[估算] |
| 量化方案 |
BF16 [已验证] |
|
量化反演
| Scheme |
Predicted |
Δ |
Error |
| FP16 |
56.87 GB |
2.25 MB 偏多 |
0.0% |
| BF16 ✓ |
56.87 GB |
2.25 MB 偏多 |
0.0% |
| FP8 |
28.44 GB |
28.44 GB 偏多 |
100.0% |
| INT8 |
28.44 GB |
28.44 GB 偏多 |
100.0% |
| FP4_FP8_MIXED |
15.64 GB |
41.23 GB 偏多 |
263.7% |
Best: BF16 — safetensors header: all 1262 weight tensors are BF16 (predicts 61,064,216,576 bytes, 0.0% error)
KV 缓存（每请求）
| Context tokens |
KV bytes |
| 4,096 |
384.00 MB |
| 32,768 |
3.00 GB |
推荐集群
| Tier |
GPUs |
Weight/GPU |
Headroom/GPU |
Concurrent @ 128K |
| min |
2 |
28.44 GB |
38.62 GB |
6 |
| dev ★ |
4 |
14.22 GB |
52.84 GB |
17 |
| prod |
4 |
14.22 GB |
52.84 GB |
17 |
性能
- Prefill latency 245 ms @ 2000 input tokens
[估算]
- Cluster decode throughput 228 tok/s
[估算]
- Max concurrent users 7
- Bottleneck
memory_bandwidth
生成命令
vllm serve Qwen/Qwen3-30B-A3B \
--tensor-parallel-size 4 \
--max-model-len 40960 \
--trust-remote-code \
--gpu-memory-utilization 0.9 \
--enable-expert-parallel
生成方式:
llm-cal Qwen/Qwen3-30B-A3B --gpu A100-80G --engine vllm --lang zh