

Powerinfer
Overview :
PowerInfer is an engine for performing high-speed inference of large language models on consumer-grade GPUs within personal computers. It leverages the high locality of LLM inference by pre-loading hot-activated neurons to the GPU, significantly reducing GPU memory requirements and CPU-GPU data transfer. PowerInfer also integrates adaptive predictors and neuron-aware sparse operators, optimizing the efficiency of neuron activation and sparse computation. It can achieve an average generation speed of 13.20 tokens per second on a single NVIDIA RTX 4090 GPU, only 18% slower than the top-tier server-grade A100 GPU while maintaining model accuracy.
Target Users :
PowerInfer is designed for high-speed inference of large language models on local deployments.
Features
Efficient LLM inference using sparse activation and the 'hot'/'cold' neuron concept
Seamless integration of CPU and GPU memory/compute capabilities for load balancing and faster processing speeds
Compatibility with common ReLU sparse models
Designed and deeply optimized for local deployment on consumer-grade hardware, enabling low-latency LLM inference and service
Backward compatibility, supporting inference with the same model weights as llama.cpp, albeit without performance improvements
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