Merge branch 'develop' of https://github.com/PaddlePaddle/Paddle into dist-table-do-not-init-on-trainer

fix multi device dependency issue

test=develop

disable dist transformer

test=develop

test=develop

avoid blocking everyone

please fix offline

fix avx error

test=develop

Accelerate Sequence Pool Grad Op

test=develop

Fix transformer unittest

Refine/jit/gru

* disable async dist test

* update test=develop

ceil pool mode support for ocr attention model.

test=develop

test=develop

fix random fail in rpn target assign

1. Fix CUDA kernel when height is large than 2048.
2. Support input with more than 2D.
3. Fix unit test when k is large than 1.
4. Enhence unit testing.

test=develop

demo ci error on manylinux

test=develop

Clean up Reuse

test=develop

test=develop

test=develop