open source driving agent
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import os
import sys
import numpy as np
from typing import Tuple, Dict, Union, Any
from openpilot.selfdrive.modeld.runners.runmodel_pyx import RunModel
ORT_TYPES_TO_NP_TYPES = {'tensor(float16)': np.float16, 'tensor(float)': np.float32, 'tensor(uint8)': np.uint8}
def create_ort_session(path):
os.environ["OMP_NUM_THREADS"] = "4"
os.environ["OMP_WAIT_POLICY"] = "PASSIVE"
import onnxruntime as ort
print("Onnx available providers: ", ort.get_available_providers(), file=sys.stderr)
options = ort.SessionOptions()
options.graph_optimization_level = ort.GraphOptimizationLevel.ORT_DISABLE_ALL
provider: Union[str, Tuple[str, Dict[Any, Any]]]
if 'OpenVINOExecutionProvider' in ort.get_available_providers() and 'ONNXCPU' not in os.environ:
provider = 'OpenVINOExecutionProvider'
elif 'CUDAExecutionProvider' in ort.get_available_providers() and 'ONNXCPU' not in os.environ:
options.intra_op_num_threads = 2
provider = ('CUDAExecutionProvider', {'cudnn_conv_algo_search': 'DEFAULT'})
else:
options.intra_op_num_threads = 2
options.execution_mode = ort.ExecutionMode.ORT_SEQUENTIAL
options.graph_optimization_level = ort.GraphOptimizationLevel.ORT_ENABLE_ALL
provider = 'CPUExecutionProvider'
print("Onnx selected provider: ", [provider], file=sys.stderr)
ort_session = ort.InferenceSession(path, options, providers=[provider])
print("Onnx using ", ort_session.get_providers(), file=sys.stderr)
return ort_session
class ONNXModel(RunModel):
def __init__(self, path, output, runtime, use_tf8, cl_context):
self.inputs = {}
self.output = output
self.use_tf8 = use_tf8
self.session = create_ort_session(path)
self.input_names = [x.name for x in self.session.get_inputs()]
self.input_shapes = {x.name: [1, *x.shape[1:]] for x in self.session.get_inputs()}
self.input_dtypes = {x.name: ORT_TYPES_TO_NP_TYPES[x.type] for x in self.session.get_inputs()}
# run once to initialize CUDA provider
if "CUDAExecutionProvider" in self.session.get_providers():
self.session.run(None, {k: np.zeros(self.input_shapes[k], dtype=self.input_dtypes[k]) for k in self.input_names})
print("ready to run onnx model", self.input_shapes, file=sys.stderr)
def addInput(self, name, buffer):
assert name in self.input_names
self.inputs[name] = buffer
def setInputBuffer(self, name, buffer):
assert name in self.inputs
self.inputs[name] = buffer
def getCLBuffer(self, name):
return None
def execute(self):
inputs = {k: (v.view(np.uint8) / 255. if self.use_tf8 and k == 'input_img' else v) for k,v in self.inputs.items()}
inputs = {k: v.reshape(self.input_shapes[k]).astype(self.input_dtypes[k]) for k,v in inputs.items()}
outputs = self.session.run(None, inputs)
assert len(outputs) == 1, "Only single model outputs are supported"
self.output[:] = outputs[0]
return self.output