* improve split and concat op:
1. support Tensor for argument 'dim' in split op.
2. support Tensor for argument 'axis' in concat op.
test=develop
* redefine function GetDataFromTensor and set unknown output shape to - 1.
test=develop
* add check: Attr(sections) match Input(X). test=develop
* support Tensor for attr(sections) and attr(sections) can contain -1.
add check for attr(sections).
test=develop
* modify error message for concat and call Resize only when necessary. test=develop
* All elements in attr(shape) of crop_tensor can be -1, test=develop, test=document_preview
* fix the bug that attr(offsets) should be initialized, test=develop
* refine Categorical and MultivariateNormalDiag en doc test=develop, test=document_fix
* refine Categorical and MultivariateNormalDiag en doc test=develop, test=document_fix
* add data type check, test=develop
* polish error messages, test=develop
* polish error messages, test=develop
* Remove support for the CPU architecture matmul, test=develop
* fix syntax bug, test=develop
* add input type and dtype check for cast_op
test=develop
* fix annotation
test=develop
* support more data type
test=develop
* fix bug for fill_constant's error type
test=develop
* improve converage
test=develop
* improve converage
test=develop
* Fix docs of gru_unit and dynamic_gru.
Fix basic_gru in rnn_impl.py.
Add error messages for param_attr setting in layer_norm api.
Add int64 dtype for expand.
test=develop
* Reopen unit-tests of basic_gru/basic_lstm in rnn_impl.py.
test=develop
* Add unit test for layer_norm api.
test=develop
* Remove the deprecated gru doc fix. test=develop
* Fix basic_gru test coverage. test=develop
* Update API.spec. test=develop
* Update API.spec. test=develop
* Fix test_basic_gru coverage test. test=develop
* Update test_basic_gru in test_layers to use fluid.data
test=develop
* Update test_basic_gru for coverage. test=develop
* Refine the documentation of sums.
* Remove Chinese comments and update API.spec.
* Refine the description of input argument.
* Update API.spec.
test=develop
test=document_fix
* refine the en api doc of ones, zeros, reverse, increment, hsigmoid and create_py_reader_by_data ops
test=develop, test=document_preview, test=document_fix
* refine eng doc for hsigmoid and create_py_reader_by_data ops
test=develop, test=document_preview, test=document_fix
* update API.spec
test=document_fix
* Fix the parameter name axis of reverse op in eng doc
test=develop, test=document_fix
* Update API.spec
test=develop, test=document_fix
* Refine eng doc of zeros, ones, reverse and assign op
test=develop, test=document_fix
* Update API.spec for assign, ones, zeros and reverse
test=develop, test=document_fix
* Fix data type of reverse op in eng doc
test=develop, test=document_fix
* Update API.spec for reverse op
test=develop, test=document_fix
* refine eng doc for hard_sigmoid op
test=develop
test=document_fix
* refine the description of hard_sigmoid
test=develop
test=document_fix
* update API.spec
test=document_fix
* Refine the decription of parameters of HardSigmoid op
test=develop, test=document_fix
* Update API.spec for hard_sigmoid op
test=develop, test=document_fix
* add input type and dtype check for accuracy_op
* add input type and dtype check for accuracy_op
* modify python error on accuracy_op,add test=develop
* modify details on accuracy_op, test=develop
* test float16, test=develop
* add warning, test=develop
* Refine the main comment of DynamicRNN.
* Refine the documentation of DynamicRNN's step_input function.
* Refine the documentation of DynamicRNN's static_input function.
* Refine the documentation of DynamicRNN's block function.
* Refine the documentation of DynamicRNN's memory function.
* Refine the documentation of DynamicRNN's update_memory and output function.
* Refine the code format and remove the method list.
* Refine the documentation of DynamicRNN's __call__ function.
test=develop
test=document_fix
* Minor modification.
test=develop
test=document_fix
* Fix some typo.
* Update API.spec.
test=develop
test=document_fix
* Refine the English according to the comments.
* Update API.spec.
test=develop
test=document_fix
* Fix some typo.
* Update API.spec.
* Add fp16 in input.dtype check test=develop
* Add warning of fp16 in CPU test=develop
* add unittest code for fp16 test=develop
* fix float16 list error test=develop
* fix English Doc of API:layers.py_func/sum, test=document_fix
* fix English Doc of API:layers.array_read/array_write/array_length,test=develop test=document_fix
* fix the reduce api en doc test=document_fix test=develop
* fix the fluid.data test=develop test=document_fix
* fix the API.spec test=develop test=document_fix
* fix according the review test=develop test=document_fix
* fix the confilict test=develop test=document_fix
* test=document_fix
test=develop
Fix english doc api, invloves the op of retinanet_target_assign, sigmoid_focal_loss and retinanet_detection_output.
* test=document_fix
test=develop
remove Notice: this OP supports CPU mode only in english doc api of retinanet_target_assign and retinanet_detection_output
* test=document_fix
test=develop
fix API Difference for retinanet_target_assign and retinanet_detection_output
* fix API.spec conflicts in english doc api of retinanet_target_assign, sigmoid_focal_loss, retinanet_detection_output
test=develop
test=document_fix
* fix API.spec conflicts in english doc api of retinanet_target_assign, sigmoid_focal_loss, retinanet_detection_output
test=develop
test=document_fix
* test=document_fix
Fix english doc api, invloves the op of greater_equal,greater_than,less_equal,not_equal,
rank,rsqrt,diag,linspace,reduce_all,reduce_any,sign,where,zeros_like,unique_with_counts.
* Fix some format problem in the op of sign and greather_than.
test=develop
test=document_fix
* Fix the example of zeros_like, and update api.spec
test=develop
test=document_fix
* test=develop, fix docker with paddle nccl problem
* test=develop, refine en_doc for Variable and Program
* test=document_fix, fix English doc for Variable and Program
* test=document_fix, refine astype code block style
* test=document_fix, add example code for Variable properties
* add api check in fc test=develop
* enforce shape error info of sum op test=develop
* fix spelling test=develop
* print x_dims info test=develop
* enhance shape error info test=develop
* fix fluid.data code example, test=develop, test=document_preview, test=document_fix
* use None instead of -1 in shape, test=develop, test=document_preview, test=document_fix
* test=develop
Add input type and dtype check for sign_op.
* test=develop
Fix the api text format in sign op.
* test=develop
Fix the api examples in sign op add update the api.spec.
* Update crf_decoding api & example
test=develop
* Update api spec
test=develop
* Fix linear chain crf api
test=develop
* Avoid sharing data pointer with input
test=develop
* Simplify the logic in linear_chain_crf_decoding
* Add unittest for crf_decoding when label & path both are set
test=develop
* Update API spec
test=develop
* Add unittest for layers && correct infer_shape in chunk_eval
test=develop
* fix the error message for reduce_mean and reduce_sum op test=develop
* fix typo test=develop
* fix according review advice test=develop
* fix the test test=develop
* fix test=develop
* fix the constant error message test=develop
* fix typo test=develop
* fix typo test=develop
* fix code style test=develop
* fix comment and bugs test=develop
* fix the bug test=develop
* fix and add unittest test=develop
* fix the typo test=develop
* add support for the fill_constant op test=develop
* add test for ci coverage test=develop
1.support asymmetric padding;
2.support padding algorithm:"SAME" and "VALID";
3.support channel_last: data_format NHWC and NDHWC;
4.change doc of python API and c++;
test=develop, test=document_preview
* test=develop, argument shape support tensor and tensor in list
* test=develop,Increasing the coverage of CI tests
* test=develop, modify the document and update API.spec
* test=develop, modify the doc and update API.spec
* test=develop, modify the doc and update API.spec
* test=develop, modify the interface of UniformInitializer
* test=develop, modify the interface of XavierInitializer and MSRAInitializer
* test=develop, modify based on review's comments
* test=develop, modify based on review's comments
* test=develop, modify based on review's comments
* fix pool2d pool3d:
1. support asymmetric padding;
2. support padding algorithm:"SAME" and "VALID";
3. support channel_last: data_format NHWC and NDHWC;
4. support inferring shape when input with negative dims in compile time;
5. change doc of python API and c++;
6. fix bug in cuda kernel when Attr(adaptive) is true.
test=develop,test=document_preview
* fix 'tensors' to 'Tensors'. test=develop,test=document_preview
* add test for converage ValueError.test=develop,test=document_preview
* resolve conflict in test_pool2d. test=develop
* move tree_conv to fluid.contrib.layers
test=develop
* update API.spec for tree_conv
test=develop
* update tree_conv api to increase unit coverage
test=develop
* refactor dygraph,test=develop
* fix failed unittest,test=develop
* polish code,test=develop
* check windows ci error,test=develop
try to fix windows ci error by np.allclose,test=develop
* polish vlog and profiler, test=develop
* try to fix preceding ops order,test=develop
* test transformer in windows ci, test=develop
* use python c-api to speed up tracer.trace,test=develop
* test=develop, fix docker with paddle nccl problem
* test=develop, add ut for debug string and gradient_accumulator
* test=develop, add tests for layer/gradient_accumulator/prepared_op
* test=develop, fix complie error for test_prepared_op
* test=develop, add more ut for dygraph
* test=develop, create API.spec for dygraph api change
* test=develop, refoctor name to make it easier to understand
* test=develop, refoctor name to make it easier to understand
* test=develop, fix multi-gpu failed problem , add Tracer tests, change PADDLEENFORCE to PADDLEENFORCE_EQ
* test=develop, fix ut failed on parallel se-resnext
* test=develop, change one more PADDLE_ENFORCE
* support auto prune in dygraph mode
* test=develop, support auto prune
* test=develop, merge develop conflict
* test=develop, fix test_layer and test_tracer ut
* test=develop, fix bug which may cause stop_gradient disabled with a list of backward inputs
modified interpolate_op to support tensor attribute
1. the parameter out_shape of image_resize、resize_nearest/bilinear/trilinear can be a list or a 1-D tensor variable. If a list, each element can be an integer or a tensor variable with shape: [1].
2. the parameter scale of above Ops can be a 1-D tensor variable.
modified document of image_resize, resize_nearest, resize_bilinear, resize_trilinear and add some code example.