Added accumulation of loggers' metrics for the same steps#1278

Merged

williamFalcon merged 39 commits intoLightning-AI:masterfrom

alexeykarnachev:fix-acuumulate-batches-logging

Apr 8, 2020

Commits on Apr 7, 2020

`add_argparse_args` method fixed (argument types added)

akarnachev
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autopep8 fixes

akarnachev
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--gpus=0 removed from test (for ci tests)

akarnachev
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Update pytorch_lightning/trainer/trainer.py

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test_with_accumulate_grad_batches added

akarnachev
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agg_and_log_metrics logic added to the base logger class

akarnachev
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small format fix

akarnachev
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agg metrics strategies removed (not to complicate stuff)

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agg metrics: handle zero step

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autopep8

akarnachev
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changelog upd

akarnachev
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flake fix

akarnachev
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metrics aggregators factored out, metrics_agg.py added + tests

akarnachev
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metrics agg default value added

akarnachev
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Update pytorch_lightning/loggers/metrics_agg.py

alexeykarnachev
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remove .item which causes sync issues (#1254)

williamFalcon
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test_metrics_agg.py removed (all tested in doctrings), agg metrics refactored

akarnachev
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autopep8

akarnachev
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loggers base.py types fixed

akarnachev
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test

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test

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metrics aggregation for loggers: each key now has a specific function (or default one)

akarnachev
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Borda
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metrics aggregators factored out, metrics_agg.py added + tests

akarnachev
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Borda
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metrics agg default value added

akarnachev
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Borda
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Update pytorch_lightning/loggers/metrics_agg.py

alexeykarnachev
and
Borda
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test_metrics_agg.py removed (all tested in doctrings), agg metrics refactored

akarnachev
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Borda
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metrics aggregation for loggers: each key now has a specific function (or default one)

akarnachev
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docstrings upd

akarnachev
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manual typehints removed from docstrings

akarnachev
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batch_size decreased for test `test_with_accumulate_grad_batches`

akarnachev
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extend running accum
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refactor
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fix tests
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fix tests
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allowed_types generator scoped
alexeykarnachev
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trainer.py distutils was imported twice, fixed
alexeykarnachev
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TensorRunningAccum refactored
alexeykarnachev
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TensorRunningAccum added to change log (Changed)
alexeykarnachev
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change log pull link added
alexeykarnachev
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