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#!/usr/bin/env python
import os
import os.path as osp
import argparse
from operator import itemgetter
import numpy as np
import paddle
from paddle.inference import Config
from paddle.inference import create_predictor
from paddle.inference import PrecisionType
from paddlers.tasks import load_model
from paddlers.utils import logging
from config_utils import parse_configs
class _bool(object):
def __new__(cls, x):
if isinstance(x, str):
if x.lower() == 'false':
return False
elif x.lower() == 'true':
return True
return bool.__new__(x)
class TIPCPredictor(object):
def __init__(self,
model_dir,
device='cpu',
gpu_id=0,
cpu_thread_num=1,
use_mkl=True,
mkl_thread_num=4,
use_trt=False,
memory_optimize=True,
trt_precision_mode='fp32',
benchmark=False,
model_name='',
batch_size=1):
self.model_dir = model_dir
self._model = load_model(model_dir, with_net=False)
if trt_precision_mode.lower() == 'fp32':
trt_precision_mode = PrecisionType.Float32
elif trt_precision_mode.lower() == 'fp16':
trt_precision_mode = PrecisionType.Float16
else:
logging.error(
"TensorRT precision mode {} is invalid. Supported modes are fp32 and fp16."
.format(trt_precision_mode),
exit=True)
self.config = self.get_config(
device=device,
gpu_id=gpu_id,
cpu_thread_num=cpu_thread_num,
use_mkl=use_mkl,
mkl_thread_num=mkl_thread_num,
use_trt=use_trt,
use_glog=False,
memory_optimize=memory_optimize,
max_trt_batch_size=1,
trt_precision_mode=trt_precision_mode)
self.predictor = create_predictor(self.config)
self.batch_size = batch_size
if benchmark:
import auto_log
pid = os.getpid()
self.autolog = auto_log.AutoLogger(
model_name=model_name,
model_precision=trt_precision_mode,
batch_size=batch_size,
data_shape='dynamic',
save_path=None,
inference_config=self.config,
pids=pid,
process_name=None,
gpu_ids=0,
time_keys=[
'preprocess_time', 'inference_time', 'postprocess_time'
],
warmup=0,
logger=logging)
self.benchmark = benchmark
def get_config(self, device, gpu_id, cpu_thread_num, use_mkl,
mkl_thread_num, use_trt, use_glog, memory_optimize,
max_trt_batch_size, trt_precision_mode):
config = Config(
osp.join(self.model_dir, 'model.pdmodel'),
osp.join(self.model_dir, 'model.pdiparams'))
if device == 'gpu':
config.enable_use_gpu(200, gpu_id)
config.switch_ir_optim(True)
if use_trt:
if self._model.model_type == 'segmenter':
logging.warning(
"Semantic segmentation models do not support TensorRT acceleration, "
"TensorRT is forcibly disabled.")
elif self._model.model_type == 'detector' and 'RCNN' in self._model.__class__.__name__:
logging.warning(
"RCNN models do not support TensorRT acceleration, "
"TensorRT is forcibly disabled.")
else:
config.enable_tensorrt_engine(
workspace_size=1 << 10,
max_batch_size=max_trt_batch_size,
min_subgraph_size=3,
precision_mode=trt_precision_mode,
use_static=False,
use_calib_mode=False)
else:
config.disable_gpu()
config.set_cpu_math_library_num_threads(cpu_thread_num)
if use_mkl:
if self._model.__class__.__name__ == 'MaskRCNN':
logging.warning(
"MaskRCNN does not support MKL-DNN, MKL-DNN is forcibly disabled"
)
else:
try:
# Cache 10 different shapes for mkldnn to avoid memory leak.
config.set_mkldnn_cache_capacity(10)
config.enable_mkldnn()
config.set_cpu_math_library_num_threads(mkl_thread_num)
except Exception as e:
logging.warning(
"The current environment does not support MKL-DNN, MKL-DNN is disabled."
)
pass
if not use_glog:
config.disable_glog_info()
if memory_optimize:
config.enable_memory_optim()
config.switch_use_feed_fetch_ops(False)
return config
def preprocess(self, images, transforms):
preprocessed_samples = self._model.preprocess(
images, transforms, to_tensor=False)
if self._model.model_type == 'classifier':
preprocessed_samples = {'image': preprocessed_samples[0]}
elif self._model.model_type == 'segmenter':
preprocessed_samples = {
'image': preprocessed_samples[0],
'ori_shape': preprocessed_samples[1]
}
elif self._model.model_type == 'detector':
pass
elif self._model.model_type == 'change_detector':
preprocessed_samples = {
'image': preprocessed_samples[0],
'image2': preprocessed_samples[1],
'ori_shape': preprocessed_samples[2]
}
elif self._model.model_type == 'restorer':
preprocessed_samples = {
'image': preprocessed_samples[0],
'tar_shape': preprocessed_samples[1]
}
else:
logging.error(
"Invalid model type {}".format(self._model.model_type),
exit=True)
return preprocessed_samples
def postprocess(self,
net_outputs,
topk=1,
ori_shape=None,
tar_shape=None,
transforms=None):
if self._model.model_type == 'classifier':
true_topk = min(self._model.num_classes, topk)
if self._model.postprocess is None:
self._model.build_postprocess_from_labels(topk)
# XXX: Convert ndarray to tensor as self._model.postprocess requires
assert len(net_outputs) == 1
net_outputs = paddle.to_tensor(net_outputs[0])
outputs = self._model.postprocess(net_outputs)
class_ids = map(itemgetter('class_ids'), outputs)
scores = map(itemgetter('scores'), outputs)
label_names = map(itemgetter('label_names'), outputs)
preds = [{
'class_ids_map': l,
'scores_map': s,
'label_names_map': n,
} for l, s, n in zip(class_ids, scores, label_names)]
elif self._model.model_type in ('segmenter', 'change_detector'):
label_map, score_map = self._model.postprocess(
net_outputs,
batch_origin_shape=ori_shape,
transforms=transforms.transforms)
preds = [{
'label_map': l,
'score_map': s
} for l, s in zip(label_map, score_map)]
elif self._model.model_type == 'detector':
net_outputs = {
k: v
for k, v in zip(['bbox', 'bbox_num', 'mask'], net_outputs)
}
preds = self._model.postprocess(net_outputs)
elif self._model.model_type == 'restorer':
res_maps = self._model.postprocess(
net_outputs[0],
batch_tar_shape=tar_shape,
transforms=transforms.transforms)
preds = [{'res_map': res_map} for res_map in res_maps]
else:
logging.error(
"Invalid model type {}.".format(self._model.model_type),
exit=True)
return preds
def _run(self, images, topk=1, transforms=None, time_it=False):
if self.benchmark and time_it:
self.autolog.times.start()
preprocessed_input = self.preprocess(images, transforms)
input_names = self.predictor.get_input_names()
for name in input_names:
input_tensor = self.predictor.get_input_handle(name)
input_tensor.copy_from_cpu(preprocessed_input[name])
if self.benchmark and time_it:
self.autolog.times.stamp()
self.predictor.run()
output_names = self.predictor.get_output_names()
net_outputs = []
for name in output_names:
output_tensor = self.predictor.get_output_handle(name)
net_outputs.append(output_tensor.copy_to_cpu())
if self.benchmark and time_it:
self.autolog.times.stamp()
res = self.postprocess(
net_outputs,
topk,
ori_shape=preprocessed_input.get('ori_shape', None),
tar_shape=preprocessed_input.get('tar_shape', None),
transforms=transforms)
if self.benchmark and time_it:
self.autolog.times.end(stamp=True)
return res
def predict(self, data_dir, file_list, topk=1, warmup_iters=5):
transforms = self._model.test_transforms
# Warm up
iters = 0
while True:
for images in self._parse_lines(data_dir, file_list):
if iters >= warmup_iters:
break
self._run(
images=images,
topk=topk,
transforms=transforms,
time_it=False)
iters += 1
else:
continue
break
results = []
for images in self._parse_lines(data_dir, file_list):
res = self._run(
images=images, topk=topk, transforms=transforms, time_it=True)
results.append(res)
return results
def _parse_lines(self, data_dir, file_list):
with open(file_list, 'r') as f:
batch = []
for line in f:
items = line.strip().split()
items = [osp.join(data_dir, item) for item in items]
if self._model.model_type == 'change_detector':
batch.append((items[0], items[1]))
else:
batch.append(items[0])
if len(batch) == self.batch_size:
yield batch
batch.clear()
if 0 < len(batch) < self.batch_size:
yield batch
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('--config', type=str)
parser.add_argument('--inherit_off', action='store_true')
parser.add_argument('--model_dir', type=str, default='./')
parser.add_argument(
'--device', type=str, choices=['cpu', 'gpu'], default='cpu')
parser.add_argument('--enable_mkldnn', type=_bool, default=False)
parser.add_argument('--cpu_threads', type=int, default=10)
parser.add_argument('--use_trt', type=_bool, default=False)
parser.add_argument(
'--precision', type=str, choices=['fp32', 'fp16'], default='fp16')
parser.add_argument('--batch_size', type=int, default=1)
parser.add_argument('--benchmark', type=_bool, default=False)
parser.add_argument('--model_name', type=str, default='')
args = parser.parse_args()
cfg = parse_configs(args.config, not args.inherit_off)
eval_dataset = cfg['datasets']['eval']
data_dir = eval_dataset.args['data_dir']
file_list = eval_dataset.args['file_list']
predictor = TIPCPredictor(
args.model_dir,
device=args.device,
cpu_thread_num=args.cpu_threads,
use_mkl=args.enable_mkldnn,
mkl_thread_num=args.cpu_threads,
use_trt=args.use_trt,
trt_precision_mode=args.precision,
benchmark=args.benchmark)
predictor.predict(data_dir, file_list)
if args.benchmark:
predictor.autolog.report()