# Acronyms and terms

> 
> 
> | Acronym or term | Definition |
> | --- | --- |
> | AoT | Ahead-of-time |
> | CPU | Central processing unit |
> | DML | Direct ML |
> | ENV | Environment |
> | EP | Execution provider |
> | FP32/16 | 32/16-bit floating point |
> | GCC | GNU compiler collection |
> | Genie | Qualcomm Gen AI Inference Extensions |
> | GPU | Graphical processing unit |
> | HF | Hugging Face |
> | HMX | Hexagon Matrix Extensions |
> | HTP | Hexagon Tensor processor |
> | HVX | Hexagon Vector Extensions |
> | JIT | Just-in-time |
> | LLM | Large language model |
> | LLVM | Low level virtual machine |
> | MLC | Machine learning compiler |
> | NN | Neural network |
> | NPU | Neural processing Unit |
> | ONNX | Open Neural Network Exchange |
> | ORT | ONNX Runtime |
> | QNN | Qualcomm Neural Network (a synonym for Qualcomm® AI Engine Direct) |
> | QAIRT | Qualcomm AI Runtime |
> | SDX | Snapdragon X and X2 Elite |
> | TVM | Tensor virtual machine |
> | VENV | Virtual environment |
> | VTCM | Virtual tightly coupled memory |
> | WoS | Windows on Snapdragon |

Last Published: Jun 16, 2026

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