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@@ -44,12 +44,8 @@ pip install -e "python[all]"
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```
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### Notes
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- If you are using older GPUs (NVIDIA V100, T4), please pick the correct triton compiler version to avoid some known bugs.
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- For NVIDIA T4, please use `pip install "triton>=2.2.0"`.
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- For NVIDIA V100, please install the [nightly](https://triton-lang.org/main/getting-started/installation.html) version.
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- If you only need to use the OpenAI backend, you can avoid installing other dependencies by using `pip install "sglang[openai]"`
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## Quick Start
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The example below shows how to use sglang to answer a mulit-turn question.
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@@ -367,7 +363,8 @@ python -m sglang.launch_server --model-path meta-llama/Llama-2-7b-chat-hf --port
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```
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python -m sglang.launch_server --model-path meta-llama/Llama-2-7b-chat-hf --port 30000 --mem-fraction-static 0.7
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```
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- You can turn on [flashinfer](docs/flashinfer.md) to accelerate the inference by using highly optimized CUDA kernels.
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- See [flashinfer.md](docs/flashinfer.md) on accelerating inference using highly optimized CUDA kernels.
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- See [hyperparameter_tuning.md](docs/hyperparameter_tuning.md) on tuning hyperparameters for better performance.
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### Supported Models
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- Llama
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@@ -5,6 +5,7 @@
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Achieving a large batch size is the most important thing for attaining high throughput.
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When the server is running at full load, look for the following in the log:
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```[gpu_id=0] #running-req: 233, #token: 370959, token usage: 0.82, gen throughput (token/s): 4594.01, #queue-req: 417```
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### Tune Your Request Submission Speed
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@@ -22,10 +23,10 @@ On the other hand, if you see `token usage` very high and you frequently see war
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### Tune `--dp-size` and `--tp-size`
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Data parallelism is better for throughput. When there is enough GPU memory, always favor data parallelism for throughput.
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### (Minor) Tune `--max-prefill-tokens`, `--mem-fraction-static`, `--max-running-requests`.
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If you see out of memory (OOM) errors, you can decrease these parameters.
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If OOM happens during prefill, try to decrease `--max-prefill-tokens`.
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If OOM happens during decoding, try to decrease `--max-running-requests`.
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### (Minor) Tune `--max-prefill-tokens`, `--mem-fraction-static`, `--max-running-requests`
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If you see out of memory (OOM) errors, you can decrease these parameters.
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If OOM happens during prefill, try to decrease `--max-prefill-tokens`.
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If OOM happens during decoding, try to decrease `--max-running-requests`.
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You can also try to decrease `--mem-fraction-static`, which reduces the memory usage of the KV cache memory pool and helps both prefill and decoding.
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### (Minor) Tune `--schedule-heuristic`
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