Profiling your training/testing/inference run can help you identify bottlenecks in your code. The reports can be generated with trainer.fit(), trainer.test(), trainer.validate() and trainer.predict() for their respective actions. PyTorch Lightning supports profiling standard actions in the training loop out of the box, including:

Profiling your training run can help you understand if there are any bottlenecks in your code. PyTorch Lightning supports profiling standard actions in the training loop out of the box, including:

This profiler uses PyTorch’s Autograd Profiler and lets you inspect the cost of different operators inside your model - both on the CPU and GPU.

This profiler will record training_step, backward, validation_step, test_step, and predict_step by default. The output below shows the profiling for the action training_step. The user can provide PyTorchProfiler(record_functions={...}) to extend the scope of profiled functions.

Logs a profile report after the conclusion of run.

Profiler Report Profile stats for: get_train_batch 4869394 function calls (4863767 primitive calls) in 18.893 seconds Ordered by: cumulative time List reduced from 76 to 10 due to restriction <10> ncalls tottime percall cumtime percall filename:lineno(function) 3752/1876 0.011 0.000 18.887 0.010 {built-in method builtins.next} 1876 0.008 0.000 18.877 0.010 dataloader.py:344(__next__) 1876 0.074 0.000 18.869 0.010 dataloader.py:383(_next_data) 1875 0.012 0.000 18.721 0.010 fetch.py:42(fetch) 1875 0.084 0.000 18.290 0.010 fetch.py:44(<listcomp>) 60000 1.759 0.000 18.206 0.000 mnist.py:80(__getitem__) 60000 0.267 0.000 13.022 0.000 transforms.py:68(__call__) 60000 0.182 0.000 7.020 0.000 transforms.py:93(__call__) 60000 1.651 0.000 6.839 0.000 functional.py:42(to_tensor) 60000 0.260 0.000 5.734 0.000 transforms.py:167(__call__)

This profiler will record only for training_step_and_backward, evaluation_step and test_step functions by default. The output below shows the profiling for the action training_step_and_backward. The user can provide PyTorchProfiler(profiled_functions=[...]) to extend the scope of profiled functions.

Simply pass in the name of your action that you want to track and the profiler will record performance for code executed within this context. from pytorch_lightning.profiler import Profiler, PassThroughProfiler class MyModel(LightningModule): def __init__(self, profiler=None): self.profiler = profiler or PassThroughProfiler() def custom_processing_step(self, data): with profiler.profile('my_custom_action'): # custom processing step return data profiler = Profiler() model = MyModel(profiler) trainer = Trainer(profiler=profiler, max_epochs=1)

Profiling your training/testing/inference run can help you identify bottlenecks in your code. The reports can be generated with trainer.fit(), trainer.test(), trainer.validate() and trainer.predict() for their respective actions. PyTorch Lightning supports profiling standard actions in the training loop out of the box, including:

May 7, 2021 - Lightning 1.3, contains highly anticipated new features including a new Lightning CLI, improved TPU support, integrations such as PyTorch profiler, new early stopping strategies, predict and validate trainer routines, and more.

This profiler will record training_step, backward, validation_step, test_step, and predict_step by default. The output below shows the profiling for the action training_step. The user can provide PyTorchProfiler(record_functions={...}) to extend the scope of profiled functions.

Simply pass in the name of your action that you want to track and the profiler will record performance for code executed within this context. from pytorch_lightning.profiler import Profiler, PassThroughProfiler class MyModel(LightningModule): def __init__(self, hparams, profiler=None): self.hparams = hparams self.profiler = profiler or PassThroughProfiler() def custom_processing_step(self, data): with profiler.profile('my_custom_action'): # custom processing step return data profiler = Profiler() model = MyModel(hparams, profiler) trainer = Trainer(profiler=profiler, max_epochs=1)

This profiler will record training_step, backward, validation_step, test_step, and predict_step by default. The output below shows the profiling for the action training_step. The user can provide PyTorchProfiler(record_functions={...}) to extend the scope of profiled functions.

Profiling your training/testing/inference run can help you identify bottlenecks in your code. The reports can be generated with trainer.fit(), trainer.test(), trainer.validate() and trainer.predict() for their respective actions. PyTorch Lightning supports profiling standard actions in the training loop out of the box, including:

The most basic profile measures all the key methods across Callbacks, DataModules and the LightningModule in the training loop. ... FIT Profiler Report ------------------------------------------------------------------------------------------- ...

Profiler to check if there are any bottlenecks in your code. class pytorch_lightning.profiler.profilers.AdvancedProfiler(output_filename=None, line_count_restriction=1.0)[source]¶

This profiler will record training_step, backward, validation_step, test_step, and predict_step by default. The output below shows the profiling for the action training_step. The user can provide PyTorchProfiler(record_functions={...}) to extend the scope of profiled functions.

This profiler will record training_step, validation_step, test_step, and predict_step. The output above shows the profiling for the action training_step. ... When using the PyTorch Profiler, wall clock time will not be representative of the true wall clock time.

Profiling your training/testing/inference run can help you identify bottlenecks in your code. The reports can be generated with trainer.fit(), trainer.test(), trainer.validate() and trainer.predict() for their respective actions. PyTorch Lightning supports profiling standard actions in the training loop out of the box, including: