* add distributed.split, test=develop

* Add operator checkpoints for new attributes.

* Fix adding subsequent checkpoint to quantize op.

* Add mkldnn nearest_interp and bilinear_interp op
* don't run mkldnn interpolate in default
* add interpolate_mkldnn_pass

* add the support the op version check for matmul, test=op_version

* add the op version check for the elementwise ops, test=op_version

* add the support check for elementwise_ops, test=op_version

* fix ut

Change-Id: I151e152919a1863db07792bffb42d0ca68995756

* fix momentum op register

* upgrade instance_norm, test=op_version

* fix

* Support quantizing program_desc, test=develop

* add debug code

* add place info

* fix compile problem

* add place for output

* update readme

* update readme test=document_fix

* fix code bugs

* fix code bugs test=document_fix

* fix code bugs test=document_fix

change the elementwise ops version check, test=op_version

Add moving_average_abs_max_scale op_register_version

* Add direction info log and filter disabled ops in PR-CI-OP-benchmark, test=op_benchmark

* filter disabled ops, notest, test=op_benchmark

* remove test codes, test=document_fix

* Fix unittest:test_imperative_skip_out

fix ut:trt_resnext_test, trt_quant_int8_yolov3_r50_test, test_trt_dynamic_shape_ernie, test_trt_dynamic_shape_ernie_fp16_ser_deser, trt_cascade_rcnn_test (#29977)

register op version for conv2d_transpose, conv3d_transpose and depthwise_conv2d_transpose, test=op_version (#29937)

* fix cv2 rotation

test=develop
test=op_version

* map matmul/squeeze2+matmul/reshape2+matmul to mul

PADDLE_RETRY_CUDA_SUCCESS used wrong sleep time so it can cause timeout in unittest. This PR fixed it.

After we searched the doc in https://pubs.opengroup.org/onlinepubs/7908799/xsh/unistd.h.html, the time unit of sleep in unistd.h takes "seconds", usleep takes "microseconds", Sleep in windows.h takes "milliseconds".

fix the state_dict bug for the xpu

* add xpu_coverage function

* xpu coverage ipipe only deal with xpu files

* fix import error

* fix format error

* 'fix format error'

* fix format error

* fix error

* fix format error

* fix format error

* add gru op_register_version; test=op_version;

* Update fc,mul version;test=op_version;

* rm check_import_scipy, rm chunk_eval and mean_iou in paddle.metric.__init__.py

* Revert "rm check_import_scipy, rm chunk_eval and mean_iou in paddle.metric.__init__.py"

This reverts commit 179ba8c2b22bc31fe8d8a126e31820792cbd0f4e.

* delete paddle.metric.chunk_eval and paddle.metric.mean_iou

* delete paddle.nn.clip and paddle.nn.clip_by_norm

* delete paddle.nn.functional.activation.hard_sigmoid and paddle.nn.functional.activation.hard_swish

* delete paddle.nn.Pool2D, paddle.nn.BilinearTensorProduct, paddle.nn.RowConv, paddle.nn.functional.row_conv

* fix extension import error

* fix unittest for row_conv and Pool2D

* flush denormals to zero, test=develop

* add comments, test=develop