allow profiler and timeline to work when dev_ctx is nullptr.

Drop the last batch, if the size of last batch is not equal to batch_size.

* Add python wrapper for gather op.

* Add unitest for 'rank==1' and fix comments.

* Fix comments.

* Add shape op to get the shape of variable.

* Rename get_shape to shape.

* Add checker for output and fix comments.

* add fluid benchmark Dockerfile

* add_fluid_benchmark_dockerfile

Refine ProgramDesc copy

* Make bilinear_interp_op support attrs from input.

* Fix python api.

add build and install document of fluid inference library

Balance parameter opt

Add author

* Build: add test_word2vec test_image_classification as dependencies of test_paddle_inference_api_impl.

* Fix build error when WITH_TESTING is OFF.

Fix dev image build on nodes of yq

Fix bug in "paddle/fluid/framework/tensor_impl.h" and inefficient code in "paddle/fluid/framework/reader.cc"

fix transpiler package

make infer test more stable.

* WIP move weight decay

* weight decay ok

* wip

* clean up transpiler

* add details folder

* update

* fix split var test

* follow comments

Sometimes dev_ctx is not available when RecordEvent.

Fluid guide img

Withdraw MKLDNN Mul operator

Fix compile error on mac caused by std move

fix compiler error when do not have TensorRT library