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Enable ONNX --half FP16 inference #6268

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Merged
glenn-jocher merged 2 commits into from
Jan 11, 2022
Merged

Enable ONNX --half FP16 inference #6268

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d8dabea
Enable ONNX ``--half` FP16 inference
glenn-jocher Jan 11, 2022
03e5beb
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Jan 11, 2022
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2 changes: 1 addition & 1 deletion detect.py
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Expand Up @@ -94,7 +94,7 @@ def run(weights=ROOT / 'yolov5s.pt', # model.pt path(s)
imgsz = check_img_size(imgsz, s=stride) # check image size

# Half
half &= (pt or jit or engine) and device.type != 'cpu' # half precision only supported by PyTorch on CUDA
half &= (pt or jit or onnx or engine) and device.type != 'cpu' # FP16 supported on limited backends with CUDA
if pt or jit:
model.model.half() if half else model.model.float()

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2 changes: 1 addition & 1 deletion tutorial.ipynb
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Expand Up @@ -1099,4 +1099,4 @@
"outputs": []
}
]
}
}
4 changes: 2 additions & 2 deletions val.py
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Expand Up @@ -137,9 +137,9 @@ def run(data,

# Load model
model = DetectMultiBackend(weights, device=device, dnn=dnn, data=data)
stride, pt, jit, engine = model.stride, model.pt, model.jit, model.engine
stride, pt, jit, onnx, engine = model.stride, model.pt, model.jit, model.onnx, model.engine
imgsz = check_img_size(imgsz, s=stride) # check image size
half &= (pt or jit or engine) and device.type != 'cpu' # half precision only supported by PyTorch on CUDA
half &= (pt or jit or onnx or engine) and device.type != 'cpu' # FP16 supported on limited backends with CUDA
if pt or jit:
model.model.half() if half else model.model.float()
elif engine:
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