Revert "Tensor construction codemod(raw_mutable_data) (#16373)" (#18680)
Summary:
This reverts commit d73c830e236f5b980e5c91914b818d150b60278c.
We have observed significant perf drop when training ResNext101 with multiple amd GPUs:
Before:
https://ci.pytorch.org/jenkins/job/caffe2-builds/job/py2-clang7-rocmdeb-ubuntu16.04-bench/1636/console
2 GPUs ResNext training got 150\~160 imgs/sec
4 GPUs ResNext training got 270\~280 imgs/sec
After:
https://ci.pytorch.org/jenkins/job/caffe2-builds/job/py2-clang7-rocmdeb-ubuntu16.04-bench/1637/console
Both 2 and 4 GPUs ResNext training drop to 110\~120 imgs/sec
Similar perf drop are seen on ResNet50 training jobs as well.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/18680
Differential Revision: D14702941
Pulled By: bddppq
fbshipit-source-id: 828141805afc23f25c08d4a2eb6d4b99f817c128
