OpenAI-compatible LLM inference simulator for xPyD
Project description
xPyD-sim
OpenAI-compatible LLM inference simulator for xPyD.
Simulates prefill and decode nodes with realistic behavior for testing xPyD-bench and xPyD-proxy without real GPU hardware.
Features
- Separate prefill and decode node simulators
- Full OpenAI API compatibility (/v1/completions, /v1/chat/completions, /v1/models)
- Configurable latency (prefill delay, decode delay per token)
- Streaming support with realistic token-by-token delivery
- EOS simulation with configurable output length distribution
- All OpenAI API parameters accepted
- Spec-compliant response formats
Install
pip install xpyd-sim
Quick Start
# Start prefill node
xpyd-sim prefill --port 8001
# Start decode node
xpyd-sim decode --port 8002
License
TBD
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