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License: Apache License 2.0
NVIDIA TensorRT deployment of Depth Anything: Unleashing the Power of Large-Scale Unlabeled Data.
License: Apache License 2.0
感谢您的优秀工作!
最近我在尝试在Jetson Orign NX上使用TensorRT对Depth Anything进行加速,但是我发现转换后的trt文件的推理速度和onnx文件相比并没有显著提升,甚至还有下降。其中:
ONNX Inference Time: 2.7s per image
TRT Inference Time: 3.0s per image
库的版本如下:
- JetPack: 5.1
- CUDA: 11.4.315
- cuDNN: 8.6.0.166
- TensorRT: 8.5.2.2
- VPI: 2.2.4
- Vulkan: 1.3.204
- OpenCV: 4.5.4 - with CUDA: NO
- torch: 2.1.0
- torchvision: 0.16.0
- onnx: 1.16.1
- onnxruntime: 1.8.0
将pth文件转换成onnx文件的函数如下:
model_name = "zoedepth"
pretrained_resource = "local::./checkpoints/ZoeDepthIndoor_05-Jun_15-11-ebbebc6c1002_best.pt"
dataset = None
overwrite = {"pretrained_resource": pretrained_resource}
config = get_config(model_name, "eval", dataset, **overwrite)
model = build_model(config)
model.eval()
dummy_input = torch.randn(1, 3, 392, 518)
_ = model(dummy_input)
torch.onnx.export(model, dummy_input, "ZoeDepth_indoor.onnx", verbose=True)
torch.onnx.export(
model,
dummy_input,
"./checkpoints/ZoeDepth_indoor_jetson.onnx",
opset_version=11,
input_names=["input"],
output_names=["output"],
)
将onnx文件转换成trt文件的函数如下:
def build_engine(onnx_file_path):
onnx_file_path = Path(onnx_file_path)
# ONNX to TensorRT
logger = trt.Logger(trt.Logger.VERBOSE)
builder = trt.Builder(logger)
network = builder.create_network(1 << (int)(trt.NetworkDefinitionCreationFlag.EXPLICIT_BATCH))
parser = trt.OnnxParser(network, logger)
with open(onnx_file_path, "rb") as model:
if not parser.parse(model.read()):
for error in range(parser.num_errors):
print(parser.get_error(error))
raise ValueError('Faled to parse the ONNX model.')
# Set up the builder config
config = builder.create_builder_config()
config.set_flag(trt.BuilderFlag.FP16) # FP16
config.set_memory_pool_limit(trt.MemoryPoolType.WORKSPACE, 2 << 30) # 2 GB
serialized_engine = builder.build_serialized_network(network, config)
with open(onnx_file_path.with_suffix(".trt"), "wb") as f:
f.write(serialized_engine)
使用trt文件进行推理的函数如下:
def infer_trt(engine, input_image):
input_image = input_image.cpu().numpy().astype(np.float32)
context = engine.create_execution_context()
height, width = input_image.shape[2], input_image.shape[3]
output_shape = (1, 1, height, width)
# Allocate pagelocked memory
h_input = cuda.pagelocked_empty(trt.volume((1, 3, height, width)), dtype=np.float32)
h_output = cuda.pagelocked_empty(trt.volume((1, 1, height, width)), dtype=np.float32)
# Allocate device memory
d_input = cuda.mem_alloc(h_input.nbytes)
d_output = cuda.mem_alloc(h_output.nbytes)
bindings = [int(d_input), int(d_output)]
stream = cuda.Stream()
# Function to perform inference
def perform_inference(images_np):
np.copyto(h_input, images_np.ravel())
cuda.memcpy_htod_async(d_input, h_input, stream)
context.execute_async_v2(bindings=bindings, stream_handle=stream.handle)
cuda.memcpy_dtoh_async(h_output, d_output, stream)
stream.synchronize()
return torch.tensor(h_output).view(output_shape)
# Run inference on original images
pred1 = perform_inference(input_image)
# Run inference on flipped images
flipped_images_np = np.flip(input_image, axis=3)
pred2 = perform_inference(flipped_images_np)
pred2 = torch.flip(pred2, [3])
mean_pred = 0.5 * (pred1 + pred2)
return mean_pred
代码运行过程中除了转换成onnx文件的时候会有一些warning,其他全部正常运行。但是最后的结果还是不尽如人意,期待得到您的回复!
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