From 8a95c4b28d909b47c0d42a304edd691e11f90317 Mon Sep 17 00:00:00 2001 From: Kaipeng Deng Date: Mon, 1 Jun 2020 12:27:49 +0800 Subject: [PATCH] Add prune infer (#825) * add prune infer.py --- slim/prune/infer.py | 262 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 262 insertions(+) create mode 100644 slim/prune/infer.py diff --git a/slim/prune/infer.py b/slim/prune/infer.py new file mode 100644 index 000000000..7c7d82592 --- /dev/null +++ b/slim/prune/infer.py @@ -0,0 +1,262 @@ +# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from __future__ import absolute_import +from __future__ import division +from __future__ import print_function + +import os, sys +# add python path of PadleDetection to sys.path +parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2))) +if parent_path not in sys.path: + sys.path.append(parent_path) + +import glob +import numpy as np +from PIL import Image + +from paddle import fluid +from paddleslim.prune import Pruner +from paddleslim.analysis import flops + +from ppdet.core.workspace import load_config, merge_config, create + +from ppdet.utils.eval_utils import parse_fetches +from ppdet.utils.cli import ArgsParser +from ppdet.utils.check import check_gpu, check_version, check_config +from ppdet.utils.visualizer import visualize_results +import ppdet.utils.checkpoint as checkpoint + +from ppdet.data.reader import create_reader + +import logging +FORMAT = '%(asctime)s-%(levelname)s: %(message)s' +logging.basicConfig(level=logging.INFO, format=FORMAT) +logger = logging.getLogger(__name__) + + +def get_save_image_name(output_dir, image_path): + """ + Get save image name from source image path. + """ + if not os.path.exists(output_dir): + os.makedirs(output_dir) + image_name = os.path.split(image_path)[-1] + name, ext = os.path.splitext(image_name) + return os.path.join(output_dir, "{}".format(name)) + ext + + +def get_test_images(infer_dir, infer_img): + """ + Get image path list in TEST mode + """ + assert infer_img is not None or infer_dir is not None, \ + "--infer_img or --infer_dir should be set" + assert infer_img is None or os.path.isfile(infer_img), \ + "{} is not a file".format(infer_img) + assert infer_dir is None or os.path.isdir(infer_dir), \ + "{} is not a directory".format(infer_dir) + + # infer_img has a higher priority + if infer_img and os.path.isfile(infer_img): + return [infer_img] + + images = set() + infer_dir = os.path.abspath(infer_dir) + assert os.path.isdir(infer_dir), \ + "infer_dir {} is not a directory".format(infer_dir) + exts = ['jpg', 'jpeg', 'png', 'bmp'] + exts += [ext.upper() for ext in exts] + for ext in exts: + images.update(glob.glob('{}/*.{}'.format(infer_dir, ext))) + images = list(images) + + assert len(images) > 0, "no image found in {}".format(infer_dir) + logger.info("Found {} inference images in total.".format(len(images))) + + return images + + +def main(): + cfg = load_config(FLAGS.config) + + merge_config(FLAGS.opt) + check_config(cfg) + # check if set use_gpu=True in paddlepaddle cpu version + check_gpu(cfg.use_gpu) + # check if paddlepaddle version is satisfied + check_version() + + main_arch = cfg.architecture + + dataset = cfg.TestReader['dataset'] + + test_images = get_test_images(FLAGS.infer_dir, FLAGS.infer_img) + dataset.set_images(test_images) + + place = fluid.CUDAPlace(0) if cfg.use_gpu else fluid.CPUPlace() + exe = fluid.Executor(place) + + model = create(main_arch) + + startup_prog = fluid.Program() + infer_prog = fluid.Program() + with fluid.program_guard(infer_prog, startup_prog): + with fluid.unique_name.guard(): + inputs_def = cfg['TestReader']['inputs_def'] + inputs_def['iterable'] = True + feed_vars, loader = model.build_inputs(**inputs_def) + test_fetches = model.test(feed_vars) + infer_prog = infer_prog.clone(True) + + pruned_params = FLAGS.pruned_params + assert ( + FLAGS.pruned_params is not None + ), "FLAGS.pruned_params is empty!!! Please set it by '--pruned_params' option." + pruned_params = FLAGS.pruned_params.strip().split(",") + logger.info("pruned params: {}".format(pruned_params)) + pruned_ratios = [float(n) for n in FLAGS.pruned_ratios.strip().split(",")] + logger.info("pruned ratios: {}".format(pruned_ratios)) + assert (len(pruned_params) == len(pruned_ratios) + ), "The length of pruned params and pruned ratios should be equal." + assert (pruned_ratios > [0] * len(pruned_ratios) and + pruned_ratios < [1] * len(pruned_ratios) + ), "The elements of pruned ratios should be in range (0, 1)." + + base_flops = flops(infer_prog) + pruner = Pruner() + infer_prog, _, _ = pruner.prune( + infer_prog, + fluid.global_scope(), + params=pruned_params, + ratios=pruned_ratios, + place=place, + only_graph=True) + pruned_flops = flops(infer_prog) + logger.info("pruned FLOPS: {}".format( + float(base_flops - pruned_flops) / base_flops)) + reader = create_reader(cfg.TestReader, devices_num=1) + loader.set_sample_list_generator(reader, place) + + exe.run(startup_prog) + if cfg.weights: + checkpoint.load_checkpoint(exe, infer_prog, cfg.weights) + + # parse infer fetches + assert cfg.metric in ['COCO', 'VOC', 'OID', 'WIDERFACE'], \ + "unknown metric type {}".format(cfg.metric) + extra_keys = [] + if cfg['metric'] in ['COCO', 'OID']: + extra_keys = ['im_info', 'im_id', 'im_shape'] + if cfg['metric'] == 'VOC' or cfg['metric'] == 'WIDERFACE': + extra_keys = ['im_id', 'im_shape'] + keys, values, _ = parse_fetches(test_fetches, infer_prog, extra_keys) + + # parse dataset category + if cfg.metric == 'COCO': + from ppdet.utils.coco_eval import bbox2out, mask2out, get_category_info + if cfg.metric == 'OID': + from ppdet.utils.oid_eval import bbox2out, get_category_info + if cfg.metric == "VOC": + from ppdet.utils.voc_eval import bbox2out, get_category_info + if cfg.metric == "WIDERFACE": + from ppdet.utils.widerface_eval_utils import bbox2out, get_category_info + + anno_file = dataset.get_anno() + with_background = dataset.with_background + use_default_label = dataset.use_default_label + + clsid2catid, catid2name = get_category_info(anno_file, with_background, + use_default_label) + + # whether output bbox is normalized in model output layer + is_bbox_normalized = False + if hasattr(model, 'is_bbox_normalized') and \ + callable(model.is_bbox_normalized): + is_bbox_normalized = model.is_bbox_normalized() + + imid2path = dataset.get_imid2path() + for iter_id, data in enumerate(loader()): + outs = exe.run(infer_prog, + feed=data, + fetch_list=values, + return_numpy=False) + res = { + k: (np.array(v), v.recursive_sequence_lengths()) + for k, v in zip(keys, outs) + } + logger.info('Infer iter {}'.format(iter_id)) + + bbox_results = None + mask_results = None + if 'bbox' in res: + bbox_results = bbox2out([res], clsid2catid, is_bbox_normalized) + if 'mask' in res: + mask_results = mask2out([res], clsid2catid, + model.mask_head.resolution) + + # visualize result + im_ids = res['im_id'][0] + for im_id in im_ids: + image_path = imid2path[int(im_id)] + image = Image.open(image_path).convert('RGB') + + image = visualize_results(image, + int(im_id), catid2name, + FLAGS.draw_threshold, bbox_results, + mask_results) + + save_name = get_save_image_name(FLAGS.output_dir, image_path) + logger.info("Detection bbox results save in {}".format(save_name)) + image.save(save_name, quality=95) + + +if __name__ == '__main__': + parser = ArgsParser() + parser.add_argument( + "--infer_dir", + type=str, + default=None, + help="Directory for images to perform inference on.") + parser.add_argument( + "--infer_img", + type=str, + default=None, + help="Image path, has higher priority over --infer_dir") + parser.add_argument( + "--output_dir", + type=str, + default="output", + help="Directory for storing the output visualization files.") + parser.add_argument( + "--draw_threshold", + type=float, + default=0.5, + help="Threshold to reserve the result for visualization.") + + parser.add_argument( + "-p", + "--pruned_params", + default=None, + type=str, + help="The parameters to be pruned when calculating sensitivities.") + parser.add_argument( + "--pruned_ratios", + default=None, + type=str, + help="The ratios pruned iteratively for each parameter when calculating sensitivities." + ) + + FLAGS = parser.parse_args() + main() -- GitLab