No real time Experiment logging about lightning HOT 5 CLOSED

Yeah, this PTL MNIST example on a gpu with max_nb_epochs=1 will finish in a few seconds.

To watch it live you need something that takes longer to train.

Remove max_nb_epochs or set min_nb_epochs=100 (you’ll overfit fyi) to force it to train for much longer so u can watch the live logs.

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Happy to reopen this issue if this doesn’t fix it. Enjoy the lightning!

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On my local machine the same code updates the tensorboard file as expected every 100 samples.

Is it possible that there are any handles on the file that are open during training, but closed after? I remember a similar problem, where Google Colab Notebooks updated files only if all handles were closed.

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yeah, i think PyTorch SummaryWriter keeps a file open for saving.

But i suspect the issue is with how Colab handles open files. PTL doesn’t keep any files open, it defaults to whatever the SummaryWriter behavior is.

Glad to hear it’s fine on your local though.

If you find out what the issue is on colab, def follow up here to see if there’s anything we can do on our end

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@alex-obi update to latest test-tube version and try again?

pt 1.2.0
test tube 0.6.9
lightning 0.4.3

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