zhanghang1989 / zhanghang1989/PyTorch-Encoding

RuntimeError: reduce failed to synchronize: cudaErrorAssert: device-side assert triggered

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Description

Hi zhanghang1989
i have a custom dataset which has 1000 images.
when i try to train with 1000 images i'm getting this error.
my training parameters are:
python train_epoch.py --dataset ade20k --aux --se-loss --model encnet --backbone resnest101 --epochs 180
can you help me to resolve this error.
errror:
Traceback (most recent call last):
File "train_epoch.py", line 340, in
main()
File "train_epoch.py", line 144, in main
mp.spawn(main_worker, nprocs=ngpus_per_node, args=(ngpus_per_node, args))
File "/home/hbbg/miniconda3/envs/seg-pe/lib/python3.7/site-packages/torch/multiprocessing/spawn.py", line 171, in spawn
while not spawn_context.join():
File "/home/hbbg/miniconda3/envs/seg-pe/lib/python3.7/site-packages/torch/multiprocessing/spawn.py", line 118, in join
raise Exception(msg)
Exception:
-- Process 0 terminated with the following error:
Traceback (most recent call last):
File "/home/hbbg/miniconda3/envs/seg-pe/lib/python3.7/site-packages/torch/multiprocessing/spawn.py", line 19, in _wrap
fn(i, *args)
File "/home/hbbg/HBXL/PyTorch-Encoding/experiments/segmentation/train_epoch.py", line 329, in main_worker
training(epoch)
File "/home/hbbg/HBXL/PyTorch-Encoding/experiments/segmentation/train_epoch.py", line 256, in training
loss = criterion(*outputs, target)
File "/home/hbbg/miniconda3/envs/seg-pe/lib/python3.7/site-packages/torch/nn/modules/module.py", line 532, in call
result = self.forward(*input, **kwargs)
File "/home/hbbg/miniconda3/envs/seg-pe/lib/python3.7/site-packages/encoding/nn/loss.py", line 85, in forward
loss3 = self.bceloss(torch.sigmoid(se_pred), se_target)
File "/home/hbbg/miniconda3/envs/seg-pe/lib/python3.7/site-packages/torch/nn/modules/module.py", line 532, in call
result = self.forward(*input, **kwargs)
File "/home/hbbg/miniconda3/envs/seg-pe/lib/python3.7/site-packages/torch/nn/modules/loss.py", line 498, in forward
return F.binary_cross_entropy(input, target, weight=self.weight, reduction=self.reduction)
File "/home/hbbg/miniconda3/envs/seg-pe/lib/python3.7/site-packages/torch/nn/functional.py", line 2077, in binary_cross_entropy
input, target, weight, reduction_enum)
RuntimeError: reduce failed to synchronize: cudaErrorAssert: device-side assert triggered

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Research direction

Start by reproducing the command from the issue and inspect train_epoch.py at line 256, where criterion is called. Then trace encoding/nn/loss.py line 85 and the custom dataset targets to identify what triggers the BCE failure. Done would require a confirmed cause and a reproducible resolution, but the issue does not specify an expected code change.

Written by the indexing model from the issue text.

Assessment

Tech stack
python, pytorch
Domain
computer-vision, machine-learning
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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