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[refactor] remove multiprocess dependency on async #373
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@@ -192,6 +192,8 @@ def __init__( | |||
warnings.warn("More ranks than partitions, some ranks unused") | |||
self.partitions: List[ModuleWrapper] = [] | |||
self.pipeline = None | |||
# TODO(msb) remove this hack |
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Can you give some context about what it should be instead?
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AsyncPipe seems to manage partitions as a list of ModuleWrapper while MultiProcessPipe only manages a single nn.Sequential. I don't totally understand what the List[ModuleWrapper] logic is all about and there don't seem to be any tests for that really. All the tests just inspect the first partition in the list. So this hack allows to simply MultiProcessPipe while allowing the tests to continue functioning.
I'm currently focused on rationalizing MultiProcessPipe. When I move on to AsyncPipe, I'm plan to fully understand what is actually going on here. I don't totally know how to undo this hack just yet. My hope is that I can remove List[ModuleWrapper] and just have a single nn.Sequential. But I currently don't know if that is possible.
* [chore] Fix lint errors that broke master (#348) authored-by: Anjali Sridhar <anj@devfair0443.h2.fair> * [fix] ShardedDDP - cpu testfix - remove Gloo/CPU (#350) * no idea about the root issue, but it proved to be fairly narrowed (gloo+cpu+python3.8+no cuda installed) so I guess that's out of scope for fairscale * [feat][OSS] elastic and pytorch compatible checkpoints (#310) * adding a test to prove the inter operability with upstream pytorch * updating the changelog * eager state pruning * pytorch 1.5 compat * [fix] ShardedDDP - properly handle post device change (#353) * adding the .to(device) support + unit testing * doc update * [feat] Add AdaScaleWrapper (#347) * [feat] Add AdaScaleWrapper - This enables a different API for wrapping an optimizer with AdaScale. - This also enables AdaScale to be wrapped by OSS. - However, OSS wrapping AdaScale results in different optimization, which future research will be needed to study its effects. testing: add unit tests. * addressed comment: typo * [refactor] Refactor and enable multiprocess nn.Pipe benchmarks. (#319) * mp cleanup * round of multiprocess refactoring * test golden run * print cuda stats * fix lint errors * enable multiprocess pipe benchmarks * set world size to be available gpus * more changes * use synthetic loaders for intermediate pipeline stages * merged master * fix for the devices property * dataloader fix * modify rank check * print wps stats * enable verification * fix logging * fix flag name * fix flag name * check for rank * fix indent * pass args * pass args * modify golden data * remove unused print messsage * fix lint errors * add comments * fix benchmarks Co-authored-by: Anjali Sridhar <anj@devfair0443.h2.fair> * [refactor] pipe: simplify balance and module checks (#346) * [chore] v0.1.5 (#355) * [chore] disheartening switch off of a OSS cpu test (#356) * precise skip, only if agent has only cpu * [feat][minor] OSS Benchmark - regression test + background testing new optims (#352) * restoring the regression test, adding a test of the for_each optims * fix the regression test on circleci * removing unused flags * [refactor] multiprocess_pipe: cleanup __init__ (#357) * [refactor] multiprocess_pipe: remove retain_graph __init__ param (#358) It is not currently being used so we can simplify the interface by removing it. * [refactor] multiprocess_pipe: focus on LazyModule usage (#360) * [feat] ShardedDDP : Adding a proper DDP parity / AMP unit test, overdue (#361) * Adding a proper ddp parity / AMP unit test, overdue * catch non-AMP pytorch * [perf][OSS] Clip grad norm : minor obvious speedup (#363) cache this iterator, easy speed up * [refactor] multiprocess_pipe: remove pipelined_backward (#362) * [perf] ShardedDDP - small memory use reduction - minor speedup (#366) * minor * minor * [fix] repro+fix (#365) fix a broken earlier commit, only worked for the first step * [refactor] OSS only use flat buffers (#371) * flat params all along, way simpler * updating the docstring * [refactor] AsyncPipe: do not sub-class MultiProcessPipe (#370) * [refactor] remove multiprocess dependency on async (#373) * [fix] Workaround need for pip --no-build-isolation (#375) * Add fairscale.nn.misc.checkpoint_activations (#376) * Add fairscale.utils.containers Co-authored-by: Min Xu <24926999+min-xu-ai@users.noreply.github.com> * Add fairscale.nn.misc.checkpoint_activations Co-authored-by: Sam Shleifer <sshleifer@gmail.com> Co-authored-by: Min Xu <24926999+min-xu-ai@users.noreply.github.com> Co-authored-by: Sam Shleifer <sshleifer@gmail.com> * [chore] v0.1.6 (#377) * v0.1.6 Co-authored-by: anj-s <32556631+anj-s@users.noreply.github.com> Co-authored-by: Benjamin Lefaudeux <blefaudeux@users.noreply.github.com> Co-authored-by: Anjali Sridhar <anj@devfair0443.h2.fair> Co-authored-by: msbaines <35972327+msbaines@users.noreply.github.com> Co-authored-by: Leonard Lausen <leonard@lausen.nl> Co-authored-by: Myle Ott <myleott@fb.com> Co-authored-by: Sam Shleifer <sshleifer@gmail.com>
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