如果只训练coco中指定的类别？
Created by: yaodonggggggg
Paddle/ppdet/data/source/coco.py中第80行修改为
cat_ids = coco.getCatIds(catNms=['person'])
后，出现
Traceback (most recent call last): File "tools/train.py", line 323, in main() File "tools/train.py", line 197, in main devices_num, cfg) File "/home/aistudio/Paddle/ppdet/data/reader.py", line 406, in create_reader reader = Reader(**cfg)() File "/home/aistudio/Paddle/ppdet/data/reader.py", line 202, in init self._roidbs = self._dataset.get_roidb() File "/home/aistudio/Paddle/ppdet/data/source/dataset.py", line 68, in get_roidb self.load_roidb_and_cname2cid() File "/home/aistudio/Paddle/ppdet/data/source/coco.py", line 137, in load_roidb_and_cname2cid gt_class[i][0] = catid2clsid[catid]
于是输出了相关信息
old_cat_ids= [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 67, 70, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 84, 85, 86, 87, 88, 89, 90]
old_catid2clsid= {1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6, 7: 7, 8: 8, 9: 9, 10: 10, 11: 11, 13: 12, 14: 13, 15: 14, 16: 15, 17: 16, 18: 17, 19: 18, 20: 19, 21: 20, 22: 21, 23: 22, 24: 23, 25: 24, 27: 25, 28: 26, 31: 27, 32: 28, 33: 29, 34: 30, 35: 31, 36: 32, 37: 33, 38: 34, 39: 35, 40: 36, 41: 37, 42: 38, 43: 39, 44: 40, 46: 41, 47: 42, 48: 43, 49: 44, 50: 45, 51: 46, 52: 47, 53: 48, 54: 49, 55: 50, 56: 51, 57: 52, 58: 53, 59: 54, 60: 55, 61: 56, 62: 57, 63: 58, 64: 59, 65: 60, 67: 61, 70: 62, 72: 63, 73: 64, 74: 65, 75: 66, 76: 67, 77: 68, 78: 69, 79: 70, 80: 71, 81: 72, 82: 73, 84: 74, 85: 75, 86: 76, 87: 77, 88: 78, 89: 79, 90: 80}
更改后select_objects=` ['person']
New_changed_cat_ids= [1]
catid2clsid= {1: 1}
应该是出界了，于是修改131行和132行为
catid = box['category_id']
if catid not in cat_ids:
/缩进/continue
gt_class[i][0] = catid2clsid[catid]
继续修改mask_rcnn_r50_fpn_2x.yml中第10行为
num_classes: 2
但是出现新的一大串错误
2020-03-19 17:41:40,473-WARNING: Your reader has raised an exception! Exception in thread Thread-8: Traceback (most recent call last): File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/threading.py", line 926, in _bootstrap_inner self.run() File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/threading.py", line 870, in run self._target(*self._args, **self._kwargs) File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/reader.py", line 805, in thread_main six.reraise(*sys.exc_info()) File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/six.py", line 693, in reraise raise value File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/reader.py", line 785, in thread_main for tensors in self._tensor_reader(): File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/reader.py", line 853, in tensor_reader_impl for slots in paddle_reader(): File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/data_feeder.py", line 488, in reader_creator for item in reader(): File "/home/aistudio/Paddle/ppdet/data/reader.py", line 417, in _reader reader.reset() File "/home/aistudio/Paddle/ppdet/data/parallel_map.py", line 253, in reset assert not self._exit, "cannot reset for already stopped dataset" AssertionError: cannot reset for already stopped dataset
I0319 17:41:40.508862 179 parallel_executor.cc:440] The Program will be executed on CUDA using ParallelExecutor, 1 cards are used, so 1 programs are executed in parallel. I0319 17:41:40.539714 179 build_strategy.cc:365] SeqOnlyAllReduceOps:0, num_trainers:1 I0319 17:41:40.602591 179 parallel_executor.cc:307] Inplace strategy is enabled, when build_strategy.enable_inplace = True I0319 17:41:40.624060 179 parallel_executor.cc:375] Garbage collection strategy is enabled, when FLAGS_eager_delete_tensor_gb = 0 /opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/executor.py:782: UserWarning: The following exception is not an EOF exception. "The following exception is not an EOF exception.") Traceback (most recent call last): File "tools/train.py", line 323, in main() File "tools/train.py", line 233, in main outs = exe.run(compiled_train_prog, fetch_list=train_values) File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/executor.py", line 783, in run six.reraise(*sys.exc_info()) File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/six.py", line 693, in reraise raise value File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/executor.py", line 778, in run use_program_cache=use_program_cache) File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/executor.py", line 843, in _run_impl return_numpy=return_numpy) File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/executor.py", line 677, in _run_parallel tensors = exe.run(fetch_var_names)._move_to_list() paddle.fluid.core_avx.EnforceNotMet:
C++ Call Stacks (More useful to developers):
0 std::string paddle::platform::GetTraceBackString<std::string const&>(std::string const&, char const*, int) 1 paddle::platform::EnforceNotMet::EnforceNotMet(std::string const&, char const*, int) 2 paddle::operators::reader::BlockingQueue<std::vector<paddle::framework::LoDTensor, std::allocatorpaddle::framework::LoDTensor > >::Receive(std::vector<paddle::framework::LoDTensor, std::allocatorpaddle::framework::LoDTensor >) 3 paddle::operators::reader::PyReader::ReadNext(std::vector<paddle::framework::LoDTensor, std::allocatorpaddle::framework::LoDTensor >) 4 std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter> (), std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result, std::__future_base::_Result_base::_Deleter>, unsigned long> >::_M_invoke(std::_Any_data const&) 5 std::__future_base::_State_base::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter> ()>&, bool&) 6 ThreadPool::ThreadPool(unsigned long)::{lambda()#1}::operator()() const
Python Call Stacks (More useful to users):
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/framework.py", line 2525, in append_op attrs=kwargs.get("attrs", None)) File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/reader.py", line 733, in _init_non_iterable outputs={'Out': self._feed_list}) File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/reader.py", line 646, in init self._init_non_iterable() File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/reader.py", line 280, in from_generator iterable, return_list) File "/home/aistudio/Paddle/ppdet/modeling/architectures/mask_rcnn.py", line 329, in build_inputs iterable=iterable) if use_dataloader else None File "tools/train.py", line 115, in main feed_vars, train_loader = model.build_inputs(**inputs_def) File "tools/train.py", line 323, in main()
Error Message Summary:
Error: Blocking queue is killed because the data reader raises an exception [Hint: Expected killed_ != true, but received killed_:1 == true:1.] at (/paddle/paddle/fluid/operators/reader/blocking_queue.h:141) [operator < read > error]
请问如果只训练coco中指定的类别，该修改哪些地方？