* simplify result copy elimination

* gpu fix

* remove include header

* circumvent gpu issue

* add a whitepace

* add cuda reduce

* clang format

* fix bugs

* fix bug

* add 1d reduce

* clang format

* fix bugs

* unroll loop

* remove debug info

* revert tests

* unroll 1D reduce op

* add comments

* using cudnn for nd to scalar reduction

* remove cuda 1d reduction since cudnn version is faster

* remove 1D kernel

* fix bugs

* 1d multi block size

* remove debug

* change kernel name

* add reduce to scalar optimization, add test

* fix bugs and tune parameters

* clang format

* update comments

* update comments

* update comments

* clang format

* update comments

* remove wrong comments, apply clang format

* resolve Bob's comment

* clang format

* pass shared mem size from cuLaunchKernel, set unroll loop size through host code

* remove unused code.clang format

* change reduce to thread with shfl for each warp first

* add seed

* unroll size

* Merge descriptor::TensorView into descriptor::Tensot

* fix GPU build

* Added cmake flags to specify D_GLIBCXX_USE_CXX11_ABI and disable building of doc

* Renamed the NGRAPH_DOC_BUILD_ENABLE flag based on PR feedback

* IntelGPU backend: Sum operation optimization

* PR1545. Comments addressed. Test added. Helper function refactored.

* Move reshape utils down to reshape namespace.

* Reshape operation.

* Reshape operator binding.

* Error fixes.

* Reshape unit tests.

* Move flatten utility function to reshape namespace.

* Fix unused catched exception object

* Add Constant support for int64

* Review fix.

* clang-format

* Review fix part 2.

* Enable output shape as a second node input (only Constant).

* Unit test for "dynamic" output shape (from Constant node).

* Review fixes.

* Make sure second Reshape op input is Constant node.

* IntelGPU backend: helper function improvement

* PR1541. Change string to stringsteam

* Validate/infer types as a virtual function
BroadcastLike, ScalarConstantLike
Set output shape separately from output types
Remove some obsolete tests
Replace *Like ops with fixed type versions

* Review comments

* Remove TensorViewType

* Remove PrimaryTensorView

* Reviewer comments

* Style fix.

* Another try at GPU

* GPU

* Simplify class hierarchy

* More of previous.

* Better errors

* Remove unneeded classes

* Merge

* Update Python bindings

* clang-format

* Remove redundant files

* Remove commented out lines

* clang-format

* Group includes

* Missing tests

* Merge error

* Expose onnx_import C++ interface in Python API.

* Pretty printing.

* Add Computation interface using Ngraph Function objects plus UT.

* Apply code format.

* Remove unnecessary stream open mode.

- Code formatting.

* Fix onnx_import submodule visibility.

- Folder restructurization.

* Fix some small errors.

- Wrong function type annotations.
- Class doc.
- Code formatting.
- Class inheritance from object.

* Use modified Runtime class interface.

* Add model for test_onnx_import.

* Revert back to old API.

- Use of Function object in Computation class.

* Use of previous verions API.

* Small refactoring

* Code cleanup

* onnxifi: upgrade libonnx
Signed-off-by: Artur Wojcik <artur.wojcik@intel.com>

* onnx: upgrade libonnx to version 1.3
Signed-off-by: Artur Wojcik <artur.wojcik@intel.com>

* [ONNX] Concat operator

* Style fix

* only print details if details enabled

* refactor print routines to main file

* refactor for multi dir support

* dir support prints nice results

* use line comments instead of multiline comments for license header

* update more

* update new files

* more header updates

* style

* normalize doxygen keywords

* more normalization

* normalize more onnx files

* yet more normalization

* fix doxygen error

* [ONNX] Sum op

* [ONNX] Generic variadic op template

* Add support for Min op

* clang-format

* Add support for Max op

* Add support for Mean op

* Docs, code cleanup

* Docs, code cleanup

* IntelGPU backend: SigmoidBackprop operation

* Requested changes done

* Delete namespaces in function names

* Apply code format check

disabled RNN test to workaround RNN unit test failure on MAC due to bug in MKLDNN scratchpad creation (#1502)

* IntelGPU backend: AvgPoolBackprop operation

* Requested changes done

* Make gen_window_loop() static & initiate win_elems_size through shape_size

* [ONNXIFI] Fix namespace

* Revert "[ONNXIFI] Fix namespace"

This reverts commit acbf95afafd451c0b23adc8cd83563feeb1c2816.

* Include cstddef

* Update onnxifi.cpp

* Update onnxifi.cpp