从这部分代码可以看出,这个dataset比较推荐使用RandomSampler作为video sampler。因为用其它的sampler非常不方便,比如我之前样本不平衡想要WeightedRandomSampler,但是不能传weights进去,只能改写源码。 对于这部分代码我比较疑惑的是,以前用DDP,使用的sampler都是DistributedSampler,需要在每一个epoch调用sampler的set_epoch。这样...
When running under a distributed strategy, Lightning handles the distributed sampler for you by default. 当在分布式策略下运行时,Lightning默认为你处理分布式采样器。 也就是说,当在默认情况下,如果你使用的是DDP strategy,那么pyTorch Lightning会默认给你的数据集类包装一个DistributedSampler。 在官方文档中有具...
Lighning框架使用pl.LightningDataModule来划分数据集,Nuplan使用的主要函数包括setup,teardown,train_dataloader,val_dataloader,test_dataloader,前两个函数在数据集开始准备和完成准备时调用,必须重载,后三个函数分别在相应数据阶段时准备。
weighted average in results obj (#2930) fix result obj DP auto reduce (#3013) Added class LightningDataModule (#2668) Added support for PyTorch 1.6 (#2745) Added call DataModule hooks implicitly in trainer (#2755) Added support for Mean in DDP Sync (#2568) Added remaining sklearn metrics...
Bug description I am using a custom batch sampler with variable batch sizes. Lightning tries to read batch_sampler.batch_size parameter and fails What version are you seeing the problem on? v2.0 How to reproduce the bug class BatchSample...
PyTorch Imbalanced Class Sampler 7.基于能量的学习 EBGAN, Energy-Based GANs Maximum Entropy Generators for Energy-based Models 8.缺失数据 BRITS: Bidirectional Recurrent Imputation for Time Series 9.架构搜索 DenseNAS DARTS: Differentiable Architecture Search ...
pl.seed_everything will now also set the seed on the DistributedSampler (#7024) Changed default setting for communication of multi-node training using DDPShardedPlugin (#6937) trainer.tune() now returns the tuning result (#7258) LightningModule.from_datasets() now accepts IterableDataset instances...
Added LightningCLI(run=False|True) to choose whether to run a Trainer subcommand (#8751) Added support to call any trainer function from the LightningCLI via subcommands (#7508) Allow easy trainer re-instantiation (#7508) Fault-tolerant training: Added FastForwardSampler and CaptureIterableDataset...
lightning/fabric/utilities/data.py", line 134, in _get_dataloader_init_args_and_kwargs dl_kwargs.update(_dataloader_init_kwargs_resolve_sampler(dataloader, sampler, disallow_batch_sampler)) File "/data01/bart/tts/.venv/lib/python3.10/site-packages/lightning/fabric/utilities/data.py", line ...
sampler,collate_pad)defval_dataloader(self):ds_args=self.cfg.data.datasetval_ds=AVDataset(root=...