def run(self, args):
G_LOGGER.start("Starting iterations")
builder, network, parser = util.unpack_args(
self.arg_groups[TrtNetworkLoaderArgs].load_network(), 3)
with contextlib.ExitStack() as stack:
stack.enter_context(builder)
stack.enter_context(network)
if parser:
stack.enter_context(parser)
self.setup(args, network)
num_passed = 0
num_total = 0
success = True
MAX_COUNT = 100000 # We don't want to loop forever. This many iterations ought to be enough for anybody.
for iteration in range(MAX_COUNT):
G_LOGGER.start("RUNNING | Iteration {:}".format(iteration + 1))
self.process_network(network, success)
# Don't need to keep the engine around in memory - just serialize to disk and free it.
with self.arg_groups[TrtEngineLoaderArgs].build_engine(
(builder, network)) as engine:
self.arg_groups[TrtEngineSaveArgs].save_engine(
engine,
self.arg_groups[ArtifactSorterArgs].iter_artifact)
success = self.arg_groups[ArtifactSorterArgs].sort_artifacts(
iteration + 1)
num_total += 1
if success:
num_passed += 1
if self.stop(iteration, success):
break
else:
G_LOGGER.warning(
"Maximum number of iterations reached: {:}.\n"
"Iteration has been halted to prevent an infinite loop!".
format(MAX_COUNT))
G_LOGGER.finish(
"Finished {:} iteration(s) | Passed: {:}/{:} | Pass Rate: {:}%".
format(iteration + 1, num_passed, num_total,
float(num_passed) * 100 / float(num_total)))
def call_impl(self):
"""
Returns:
trt.INetworkDefinition: The modified network.
"""
ret, owns_network = util.invoke_if_callable(self._network)
builder, network, parser = util.unpack_args(ret, num=3)
with contextlib.ExitStack() as stack:
if owns_network:
stack.enter_context(util.FreeOnException([builder, network, parser]))
if self.outputs == constants.MARK_ALL:
trt_util.mark_layerwise(network)
elif self.outputs is not None:
trt_util.mark_outputs(network, self.outputs)
if self.exclude_outputs is not None:
trt_util.unmark_outputs(network, self.exclude_outputs)
if parser is None:
return builder, network
return builder, network, parser
def inspect_trt(self, args):
if self.arg_groups[ModelArgs].model_type == "engine":
if args.mode != "none":
G_LOGGER.warning(
"Displaying layer information for TensorRT engines is not currently supported"
)
with self.arg_groups[TrtEngineLoaderArgs].load_serialized_engine(
) as engine:
engine_str = trt_util.str_from_engine(engine)
G_LOGGER.info(
"==== TensorRT Engine ====\n{:}".format(engine_str))
else:
builder, network, parser = util.unpack_args(
self.arg_groups[TrtNetworkLoaderArgs].load_network(), 3)
with contextlib.ExitStack() as stack:
stack.enter_context(builder)
stack.enter_context(network)
if parser:
stack.enter_context(parser)
network_str = trt_util.str_from_network(
network, mode=args.mode).strip()
G_LOGGER.info(
"==== TensorRT Network ====\n{:}".format(network_str))
def run(self, args):
G_LOGGER.start("Starting iterations")
builder, network, parser = util.unpack_args(
self.arg_groups[TrtNetworkLoaderArgs].load_network(), 3)
with contextlib.ExitStack() as stack:
stack.enter_context(builder)
stack.enter_context(network)
if parser:
stack.enter_context(parser)
self.setup(args, network)
num_passed = 0
num_total = 0
success = True
MAX_COUNT = 100000 # We don't want to loop forever. This many iterations ought to be enough for anybody.
for iteration in range(MAX_COUNT):
remaining = self.remaining()
G_LOGGER.start("RUNNING | Iteration {:}{:}".format(
iteration + 1,
" | Approximately {:} iteration(s) remaining".format(
remaining) if remaining is not None else "",
))
self.process_network(network, success)
try:
engine = self.arg_groups[TrtEngineLoaderArgs].build_engine(
(builder, network))
except Exception as err:
G_LOGGER.warning(
"Failed to create network or engine, continuing to the next iteration.\n"
"Note: Error was: {:}".format(err))
G_LOGGER.internal_error(
"Failed to create network or engine. See warning above for details."
)
success = False
else:
# Don't need to keep the engine around in memory - just serialize to disk and free it.
with engine:
self.arg_groups[TrtEngineSaveArgs].save_engine(
engine,
self.arg_groups[ArtifactSorterArgs].iter_artifact)
success = self.arg_groups[
ArtifactSorterArgs].sort_artifacts(iteration + 1)
num_total += 1
if success:
num_passed += 1
if self.stop(iteration, success):
break
else:
G_LOGGER.warning(
"Maximum number of iterations reached: {:}.\n"
"Iteration has been halted to prevent an infinite loop!".
format(MAX_COUNT))
G_LOGGER.finish(
"Finished {:} iteration(s) | Passed: {:}/{:} | Pass Rate: {:}%".
format(iteration + 1, num_passed, num_total,
float(num_passed) * 100 / float(num_total)))
def call_impl(self):
"""
Returns:
bytes: The serialized engine that was created.
"""
# If network is a callable, then we own its return value
ret, owns_network = util.invoke_if_callable(self._network)
builder, network, parser = util.unpack_args(ret, num=3)
if builder is None or network is None:
G_LOGGER.critical("Expected to recevie a (builder, network) tuple for the `network` parameter, "
"but received: ({:}, {:})".format(builder, network))
with contextlib.ExitStack() as stack:
if owns_network:
stack.enter_context(builder)
stack.enter_context(network)
if parser is not None:
stack.enter_context(parser)
else:
provided = "Builder and Network" if parser is None else "Builder, Network, and Parser"
G_LOGGER.verbose("{:} were provided directly instead of via a Callable. This loader will not assume ownership. "
"Please ensure that they are freed.".format(provided))
config, owns_config = util.invoke_if_callable(self._config, builder, network)
if owns_config:
stack.enter_context(config)
else:
G_LOGGER.verbose("Builder configuration was provided directly instead of via a Callable. This loader will not assume "
"ownership. Please ensure it is freed.")
try:
config.int8_calibrator.__enter__ # Polygraphy calibrator frees device buffers on exit.
except AttributeError:
pass
else:
stack.enter_context(config.int8_calibrator)
network_log_mode = "full" if G_LOGGER.severity <= G_LOGGER.ULTRA_VERBOSE else "attrs"
G_LOGGER.super_verbose(lambda: ("Displaying TensorRT Network:\n" + trt_util.str_from_network(network, mode=network_log_mode)))
G_LOGGER.start("Building engine with configuration:\n{:}".format(trt_util.str_from_config(config)))
try:
engine_bytes = builder.build_serialized_network(network, config)
except AttributeError:
engine = builder.build_engine(network, config)
if not engine:
G_LOGGER.critical("Invalid Engine. Please ensure the engine was built correctly")
stack.enter_context(engine)
engine_bytes = engine.serialize()
if not engine_bytes:
G_LOGGER.critical("Invalid Engine. Please ensure the engine_bytes was built correctly")
try:
timing_cache = config.get_timing_cache()
except AttributeError:
if self.timing_cache_path:
trt_util.fail_unavailable("save_timing_cache in EngineBytesFromNetwork")
else:
if timing_cache and self.timing_cache_path:
with timing_cache.serialize() as buffer:
util.save_file(buffer, self.timing_cache_path, description="tactic timing cache")
return engine_bytes
def call_impl(self):
"""
Returns:
onnx.ModelProto: The ONNX-like, but **not** valid ONNX, representation of the TensorRT network.
"""
ret, owns_network = util.invoke_if_callable(self._network)
builder, network, parser = util.unpack_args(ret, num=3)
if builder is None or network is None:
G_LOGGER.critical(
"Expected to recevie a (builder, network) tuple for the `network` parameter, "
"but received: ({:}, {:})".format(builder, network))
with contextlib.ExitStack() as stack:
if owns_network:
stack.enter_context(builder)
stack.enter_context(network)
if parser is not None:
stack.enter_context(parser)
tensor_map = {}
def tensors_from_meta(meta):
nonlocal tensor_map
tensors = []
for name, (dtype, shape) in meta.items():
if name not in tensor_map:
tensor_map[name] = gs.Variable(name=name,
dtype=dtype,
shape=shape)
tensors.append(tensor_map[name])
return tensors
nodes = []
graph_inputs = tensors_from_meta(
trt_util.get_network_input_metadata(network))
graph_outputs = tensors_from_meta(
trt_util.get_network_output_metadata(network))
LAYER_TYPE_CLASS_MAPPING = trt_util.get_layer_class_mapping()
for layer in network:
op_name = layer.type.name
if layer.type in LAYER_TYPE_CLASS_MAPPING:
layer.__class__ = LAYER_TYPE_CLASS_MAPPING[layer.type]
node_inputs = tensors_from_meta(
trt_util.get_layer_input_metadata(layer))
node_outputs = tensors_from_meta(
trt_util.get_layer_output_metadata(layer))
attrs = {}
attr_names = trt_util.get_layer_attribute_names(layer)
for name in attr_names:
with G_LOGGER.verbosity():
attr = getattr(layer, name)
if util.is_sequence(attr) or any(
isinstance(attr, cls)
for cls in [trt.Dims, trt.Permutation]):
try:
attr = list(attr)
except ValueError: # Invalid dims
attr = []
if hasattr(attr, "__entries"): # TensorRT Enums
attr = attr.name
if isinstance(attr, trt.ILoop):
attr = attr.name
VALID_TYPES = [np.ndarray, list, int, str, bool, float]
if not any(isinstance(attr, cls) for cls in VALID_TYPES):
G_LOGGER.internal_error(
"Unknown type: {:} for layer attribute: {:}.\n"
"Note: Layer was: {:}".format(
type(attr), attr, layer))
try:
attr = str(attr)
except:
attr = "<error during conversion>"
attrs[name] = attr
nodes.append(
gs.Node(name=layer.name,
op=op_name,
attrs=attrs,
inputs=node_inputs,
outputs=node_outputs))
graph = gs.Graph(name=network.name,
inputs=graph_inputs,
outputs=graph_outputs,
nodes=nodes)
return gs.export_onnx(graph)
def test_unpack_args(case):
args, num, expected = case
assert util.unpack_args(args, num) == expected
