ZeroDivisionError: Weights sum to zero, can't be normalized

[hao-xiaoxing]

warnings.warn(
proc_id: 0
world size: 1
local_rank: 0
Let's use 1 GPUs!
Loading Dataset ...
/home/user/anaconda3/envs/Persformer_hxx/lib/python3.8/site-packages/numpy/core/fromnumeric.py:3474: RuntimeWarning: Mean of empty slice.
return _methods._mean(a, axis=axis, dtype=dtype,
/home/user/anaconda3/envs/Persformer_hxx/lib/python3.8/site-packages/numpy/core/_methods.py:189: RuntimeWarning: invalid value encountered in double_scalars
ret = ret.dtype.type(ret / rcount)
mean_cam_height nan, mean_cam_pitch nan
Traceback (most recent call last):
File "main_persformer.py", line 44, in
main()
File "main_persformer.py", line 35, in main
runner = Runner(args)
File "/mnt/data/HXX/PersFormer_3DLane/experiments/runner.py", line 68, in init
self.train_dataset, self.train_loader, self.train_sampler = self._get_train_dataset()
File "/mnt/data/HXX/PersFormer_3DLane/experiments/runner.py", line 685, in _get_train_dataset
train_dataset = LaneDataset(args.dataset_dir, args.data_dir + 'training/', args, data_aug=True, save_std=True, seg_bev=args.seg_bev)
File "/mnt/data/HXX/PersFormer_3DLane/data/Load_Data.py", line 272, in init
self._im_anchor_angles = self.init_dataset_openlane_beta(dataset_base_dir, json_file_path)
File "/mnt/data/HXX/PersFormer_3DLane/data/Load_Data.py", line 1588, in init_dataset_openlane_beta
lane_x_off_std = np.sqrt(np.average(lane_x_off_all**2, weights=visibility_all_flat, axis=0))
File "<array_function internals>", line 180, in average
File "/home/user/anaconda3/envs/Persformer_hxx/lib/python3.8/site-packages/numpy/lib/function_base.py", line 524, in average
raise ZeroDivisionError(
ZeroDivisionError: Weights sum to zero, can't be normalized
ERROR:torch.distributed.elastic.multiprocessing.api:failed (exitcode: 1) local_rank: 0 (pid: 56497) of binary: /home/user/anaconda3/envs/Persformer_hxx/bin/python
Traceback (most recent call last):
File "/home/user/anaconda3/envs/Persformer_hxx/lib/python3.8/runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/home/user/anaconda3/envs/Persformer_hxx/lib/python3.8/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/home/user/anaconda3/envs/Persformer_hxx/lib/python3.8/site-packages/torch/distributed/launch.py", line 193, in
main()
File "/home/user/anaconda3/envs/Persformer_hxx/lib/python3.8/site-packages/torch/distributed/launch.py", line 189, in main
launch(args)
File "/home/user/anaconda3/envs/Persformer_hxx/lib/python3.8/site-packages/torch/distributed/launch.py", line 174, in launch
run(args)
File "/home/user/anaconda3/envs/Persformer_hxx/lib/python3.8/site-packages/torch/distributed/run.py", line 710, in run
elastic_launch(
File "/home/user/anaconda3/envs/Persformer_hxx/lib/python3.8/site-packages/torch/distributed/launcher/api.py", line 131, in call
return launch_agent(self._config, self._entrypoint, list(args))
File "/home/user/anaconda3/envs/Persformer_hxx/lib/python3.8/site-packages/torch/distributed/launcher/api.py", line 259, in launch_agent
raise ChildFailedError(
torch.distributed.elastic.multiprocessing.errors.ChildFailedError:

main_persformer.py FAILED

Failures:
<NO_OTHER_FAILURES>

Root Cause (first observed failure):
[0]:
time : 2023-04-17_17:21:54
host : ubuntu
rank : 0 (local_rank: 0)
exitcode : 1 (pid: 56497)
error_file: <N/A>
traceback : To enable traceback see: https://pytorch.org/docs/stable/elastic/errors.html

[np000]

@hao-xiaoxing I am getting this error. could you please support to fix

[GCQi]

I am getting this error. could you please support to fix

[dhruv2012hri]

I'm facing the same error. Were you able to fix this?