KeyError: 'RANK'

[Totoro-wen]

No description provided.

[Totoro-wen]

当我单卡运行python tools/train.py --cfg siamrpn_r50_l234_dwxcorr_otb/config.yaml时,遇到下面的问题:
Traceback (most recent call last):
File "tools/train.py", line 319, in
main()
File "tools/train.py", line 258, in main
rank, world_size = dist_init()
File "/home/aibc/Wen/Siamese/pysot/pysot/utils/distributed.py", line 104, in dist_init
rank, world_size = _dist_init()
File "/home/aibc/Wen/Siamese/pysot/pysot/utils/distributed.py", line 83, in _dist_init
rank = int(os.environ['RANK'])
File "/home/aibc/anaconda2/envs/py36_pytorch1_2/lib/python3.6/os.py", line 669, in getitem
raise KeyError(key) from None
KeyError: 'RANK'
应该怎么解决呢?
谢谢!

[lb1100]

This code can't run on single node.

[Totoro-wen]

This code can't run on single node.

单卡也能多个节点吗?

[lb1100]

No. Two gpus at least.

[Totoro-wen]

No. Two gpus at least.

谢谢!

[carmete]

When you are in experiments/desired experiment/ running python -m torch.distributed.launch --nproc_per_node=1 --master_port=2333 ../../tools/train.py --cfg config.yaml should work with a single GPU.

Your error is caused by not using torch.distributed.launch as described here https://github.com/STVIR/pysot/blob/master/TRAIN.md#single-node-multiple-gpus. Therefore the environment variable RANK will not be set.

I don't know if there are any disadvantages to this abuse of the distributed setting though.
You can also specify --nproc_per_node=X with X>1.

[smile-hahah]

No. Two gpus at least.

Thanks for your good work! Now,I reperformance this project with two gpus ,EAO=0.41;In the second time, I set nproc_per_node=1,I find this project can work with single gpu,I want to know:would single gpu will affect the results?

[ZhiyuanChen]

Since no further question is asked, I'm closing it for now.
Please reopen it or create a new issue if you have further question.

No. Two gpus at least.

Thanks for your good work! Now,I reperformance this project with two gpus ,EAO=0.41;In the second time, I set nproc_per_node=1,I find this project can work with single gpu,I want to know:would single gpu will affect the results?

Glad to hear you have reached an EAO of 0.41! Would you mind sharing your experience with others at #94 ?
The result is easily influenced by random, so I would say yes and no.

[ZhiyuanChen]

Since no further question is asked, I'm closing it for now.
Please reopen it or create a new issue if you have further question.