* Add test for int16 quantized model, test=develop

* [ASCEND] Add Huawei Ascend310 support, test=develop

* [ASCEND] fix some typos, test=develop

* [ASCEND] address comments and fix opt ci python file, test=develop

* [ASCEND] update based on new ascend env, test=develop

* [ASCEND] update after develop merge, test=develop

* [Core][ARM] Fix beam_search, eltwise_mul supports broadcast and int64_t data type, add print op and kernel, add exeception
test=develop

* Fix the dims of parent idx of the arm kernel of beam_search op

* elementwise_mul supports int64_t data type with broadcasting

* Add print op and kernel for debugging

* Support throwing the exception when the internal error occurs

* Refine while and conditional_block op kernel

* Support the graph optimization on subblocks

* Pass program_desc and block_idx into the kernel of the control flow ops(while/conditional_block/subgraph), and create the RuntimeProgram online, it make it possiable to call the control flow ops recursively

*Add unit test for masked transformer model

* add opencl valid api for device

add a CI rule:  You must have Superjomn approval for change 20+ files or add than 1000+ lines of content  (#3727)

* test=develop, add a CI rule

* test=develop, remove the debug messages

* test=develop,test=coverage, support coverage CI on x86 server

* test=develop,test=coverage, fix the conflict

* test=develop,test=coverage, add target code_coverage

* test=develop,test=coverage, modify the coveralls.cmake

[LITE][OPENCL] Fix opencl backend: Free opencl resources; Fix AddKernel/GetKernel, program and all opencl kernels (#3344)

* [DONT MERGE] Fix opencl backend.

* [LITE][OPENCL] Fix kernels overlapped when add/get for kernels of mnasnet/yolonano. test=develop

* remove useless. test=develop

* add all image kernels for Get/Add kernel. test=develop

* add all image kernels for Get/Add kernel. test=develop

* fix buffer kernels of opencl. test=develop

* fix release opencl. test=develop

* fix ci for test_mobilenetv1/v2. test=develop

* [OPENCL][CI] add test_mobilenetv1/v2 for opencl ci. test=develop

add cuda ci.

Organize cuda compilation products.

* [LITE][OPENCL] Change fp32 fc to fp16's. test=develop

* fix act in conv3x3opt opencl kernel. test=develop

* [LITE][OPENCL] Fix issue(previous definition in gcc.a) armv7 gcc compile for opencl. test=develop

* add mean op, test=develop

* split forward and backward, test=develop

* test=develop

* test=develop

add opencl kernel build list; set num cores to build opencl in ci_build.sh and build.sh. test=develop (#3081)

* test=devellop

* add cl file into resulted lib test=develop

* test=develop

* test=develop

* modify opt name test=develop

* fix code style test=develop

* test=develop

remove test_models ci projects, because these project hass been removed in ci test test=develop (#2669)

* add cuda ci building, test=develop

* update comments, test=develop

* fix conv kernel bugs and open mobilenet ci 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

* 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)

* add full_api_static target and fix building errors, test=develop

* fix build errors, test=develop

* fix code style, test=develop

* fix lite/model_parser/pb/var_desc.cc, test=develop

* fix building errors, test=develop

* modify lite/tools/debug/CMakeLists.txt, test=develop