* [XPU] add mul op bridge and unit test

test=develop

* use tmp tensor for transposed y

test=develop

test=develop

* Initial support for XPU
* Fix compiling errors of XPU
* Move XPU op kernel bridges from backends to kernels to fix deps order
* Change the namespace and directory of XPU bridges
* Add XPU SDK
* Fix header files and namespace of XPU SDK
* Add unit tests for relu and conv2d ops
* Restore the modification of paddle_api_test
* Supports simple model which contains only a relu layer
* Add compiling scripts for XPU
* Fix compiling errors of XPU
* Add comments for XPU LoadModel and BuildModel

* add shell file to automatically build and collect publish result test=develop
* modify API inference of model_optimize_tool and add option for tiny&full publish test=develop

Fix conv_bn fuser with no elemwise op added, Fix conv_elem with original conv with conv_bias (#2211)

* Fix conv_bn fuser with no elemwise op added. test=develop

* fix match not bug. test=develop

* Fix conv-bn pass. test=develop

* Fix conv-bn pass. test=develop

* Fix conv-bn pass. test=develop

* Fix conv-bn pass. test=develop

* Fix conv-bn pass. test=develop

* Fix conv-bn fuse pass. test=develop

* Fix conv-bn fuser consider the case: enable_int8=true without conv_bias. test=develop

* Fix back, consider enable_int8. test=develop

* Fix Bug for conv-bn quant pass. test=develop

* Fix conv-elemwise considering origin conv with conv_bias. test=develop

* Fix code format. test=develop

* simplify. test=develop

* simplify. test=develop

* Fix conv_elem. test=develop

build x86 dynamic library in ci_build.sh
./lite/tool/ci_build.sh build_test_server

* make inceptionv4, resnet50, googlenet can run on x86 paltform and fix the compare part in x86 unittests, test=develop

* fix googlenet tests for benchmark record, test=develop

* [framework][profile] fix profile dump bug when op is feed and fetch test=develop (sangoly)

* optimise conv 1x1 ,test=develop

* add test_performance test

* remove log in reshape, fix conv error when padding size=4, test=develop

* fix style, test=develop

* remove useless code, test=develop

* remove redundant model test file, test=develop

* change cluster to power_mode, test=develop

* fix build error, test=develop

* change cluster to power_mode, test=develop

* change opt_nb to use_optimize_nb, test=develop

* null, test=develop

* add gemv-int8 test, fix clang build error, test=develop

* fix gemv-int8 error when build with clang, test=develop

test=develop

* [python api] add armlinux supported and publish paddle-lite python lib & demo

* add cuda build
test=develop

* modify yolobox_cuda to support multiple runs test=develop

* fix: fix fc batch bug

* fix:fix fc bug;test=develop

* update framework.proto

* add compatibility check, test=develop

* remove head files, test=develop

* remove log in reshape, fix conv error when padding size=4, test=develop

* fix style, test=develop

* remove useless code, test=develop

* remove redundant model test file, test=develop

* change cluster to power_mode, test=develop

* fix build error, test=develop

* change cluster to power_mode, test=develop

* change opt_nb to use_optimize_nb, test=develop

* null, test=develop

* enable pool2d op on x86 and add its unit tests, test=develop

* enable dropout op and add its unit tests, test=develop

* add tranpose, transpose2 op and add their unit tests, test=develop

* [python api] init add python api test=develop

* fix python3 build error, test=develop

* fix ci, test=develop

* Make armlinux compile libpaddle_light_api_shared.so
test=develop

* modify parse_op_registry. When REGISTER_LITE_OP and op_name not in the same row, it also can obtain op_name, test=develop

* Add DeleteQuantOpFuser
* Add fake_quantize_dequantize_moving_avg_abs_max_op
* Add DeleteQuantDequantOpFuser

test=develop

* feat: add beam_search_special function for support nlp model

* fix: add beam_search_compute kernel input and output

* feat: add assign op & copy_compute kernel

* feat: add fill_const_batch_size_like op & kernel

* feat: add layer_norm op and kernel and ut

* fix: fix some bugs
    fix mul_op infer_shape bug when x_dim_idx = 2, x_dims.size()=3 & y_dim_idx = 1, y_dims.size()=2
    fix elementwise_compute bug when y axis is all 1
    fix beam_search choose math_func wrong bug
    fix layer_norm get attr bug
    fix fill_constant_batch_size_like shape_set bug

* feat: add gather op and kernel & and transform ut

* feats: add ops and fix bugs to support transformer op
       fix type_cast passes to skip `while`
       fix elementwise infer_shape bug when x.dims=3 and y.dims={1} & axis=0
       fix lookup_table compute bug
       fix read_from_array/beam_search/increment/compate/gather ops data_type problems

* fix:
    transfomer ut add word read inferface
    fix copy/gather/norm/layer_norm include path problem

* fix:debug info

* fix: fix input reshape bug

* fix: fix norm bug

* style: style fix & test=develop

* style: fix operators cmakelist

* style: fix operators cmakelist; test=develop

* fix and test=develop

* fix and test=develop

* style: style fix; test=develop

* add static libraries of cuda, test=develop

* update cuda make

* add gpu kernel mul pool relu scale softmax dropout bilinear_interp and can run in tx2

* rm GREATER_EQUAL

* cuda add softmax and pool op

* * fix armlinux can find sys/system_properties.h
* conv add padding_algorithm
test=develop

* delete padding_algorithm in op param, test=develop

* fix bugs, test=develop

Fix ‘Large memory usage of Naive model loading’  (#2175)

fix yolobox_cuda test precision error

* add shell file to automatically build and collect publish result test=develop

* modify codestyle of getInputNames test=develop

* test=develop

* rm publish.sh

* remove copy of func param

* test=develop

* test=devcelop

* test=develop

* test=develop

* const & test=develop

* modify variable defination test=develop

* test=develop

* test=develop

* test=develop

* test=develop

* move lite/backends/npu/bridges --> lite/kernels/npu/

test=develop

* fix namespace for npu

test=develop

* mv npu runtime file to lite/backends/npu

test=develop

* update con_dw

* update

* add conv_depthwise_3x3s1.cc and conv_depthwise_3x3s2.cc

* add conv_depthwise_3x3s1_fp32 and conv_depthwise_3x3s2_fp32

* add new conv_dw

* only support conv_dw pad=0, 1

* add conv_dw_s1 conv_dw_s2 fp32

*     //conv2_func _impl2{nullptr};
update conv_dw, add conv_3x3s1 and conv_3x3s2, pad=[0,1]

* fix format, test=develop

* fix formmat, test=develop