* Add env_util files and update getenv_bool

* More getenv cleanup

* More env cleanup

* Add env var file

* fix doc file

* cleanup

* Update doc string

* Fix compile errors

* Fix compile error

* Fix compile error

* Fix one more

* Fix compile error

* Revert MLIR changes due to failing test

* Revert MLIR changes due to failing test

* Fix compile error

* Fix env var usage
Co-authored-by: Sang Ik Lee <sang.ik.lee@intel.com>
Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>

Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>

* Switch to PartialShape in onnx_importer ValueInfo

* Construct dynamic dimensions out of ONNX dimensions defined as dim_param

* Validate the PartialShape of inputs created from an ONNX model with dynamic shapes

* Validate the output shape inference for a dynamic ONNX model

* Test the execution of an ONNX model with dynamic dimensions

* Test the Ax+B with more than one batch size

* Provenance tagging adjustments - PartialShape instead of Shape

* Correct translation of ONNX shapes to nG shapes

* Test the shape of Constant produced by scalar initializers

* Review comments & more strict assertions in UT

* UT checking a dynamic rank input

* Fully dynamic input inference test

* ONNX provenance tags adjustments and back to get_shape

* Remove an obsolete space in provenance tags
Co-Authored-By: Michał Karzyński <postrational@users.noreply.github.com>

* Remove an obsolete space in provenance tests
Co-authored-by: Michał Karzyński <postrational@users.noreply.github.com>
Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>

* Fix compilation warnings

* Camels

* Add simpler API to get input node

* style check

* Change shr_ to shared_
Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>

Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>

* LRU cache for caching graphs

* static

* LRU Cache

* Cache graph

* Make data members static

* Temp test case functional

* Temp test case functional

* Fix shape

* Make lru local to dynamic wrapper

* Make cache thread safe

* Remove static copies of data members

* Add a separator  between shapes of different inputs

* Clear list and map in destructor

* Caching on values of shape relevant inputs

* Replace cout's by NGRAPH_INFO

* Add a environment variable for cache size

* Add mutex header

* style

* change to int64_t

* Save the cloned function to get the output shape to allocate output storage

* Pass inputs without wrapping

* Fix conv shape relevant inputs

* gcc 4.8 doesnt support ostring stream as a copyable object

* Pass key by reference

* PR feedback

* Apply suggestions from code review

* Replace malloc
Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>
Co-authored-by: Robert Kimball <robert.kimball@intel.com>

Co-authored-by: asemx <998264+asemx@users.noreply.github.com>
Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>

Co-authored-by: Jayaram Bobba <jayaram.bobba@intel.com>
Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>

Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>

* Added FP32 to FP16 conversion transformation

* Update src/ngraph/pass/convert_fp32_to_fp16.cpp
Co-Authored-By: Robert Kimball <robert.kimball@intel.com>

* Update src/ngraph/pass/convert_fp32_to_fp16.hpp
Co-Authored-By: Robert Kimball <robert.kimball@intel.com>

* Added NGRAPH_API for fp32 to fp16 conversion
Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>
Co-authored-by: Robert Kimball <robert.kimball@intel.com>

* [ LSTMCell ] Setting number of outputs for LSTMCell op

* Fixed comments
Co-authored-by: Evgenya Stepyreva <evgenya.stepyreva@intel.com>

* Make pattern matcher node-based

Simplify implementation
Add support for Or, Branch
Start of support for recurrent pattern

* Only save state at branch points

* Factor Or out of label

* Documentation

* Review

* Only ops need to match on shape/output index

* Temp save.

* Enable MLIR ninja build.

* Fix issues.

* Removed ONNXIFI files and all files associated with ONNXIFI support.

* Changed docstrings.
Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>

* Move non-templated constructor implementation to the source file

* Optimize constant constructor for uniform constant

* Cleanup

* Much faster deserialize constant

* Adding unit tests

* Unit tests

* Update unit test

* Cleanup

* style

* Cleanup nbench output

* Fix specializations
Co-authored-by: Sang Ik Lee <sang.ik.lee@intel.com>
Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>

* Update sitemap to not use a page title

* Specify required version of pip for ngcore pip installs

* Update pip patch
Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>

* Added 3 new attributes to PriorBox and reworked shape inference to be aligned with OpenVINO Model Optimizer PriorBox translation rules.

* Correctly handle scale_all_sizes in PriorBox op shape inference

* Fixed PriorBox unit tests
Co-authored-by: Sergey Lyalin <sergey.lyalin@intel.com>

- Rename 'llvm-projects' to 'llvm-project' to match dir in LLVM repo.
- Remove 'mlir_project' from pre-build path. It shouldn't be mandatory
  to have LLVM repo in that directory for pre-build.

* Resolved problems with too restrictive data type

* Apply suggestions from code review

Code review remarks introduced
Co-Authored-By: Tomasz Socha <tomasz.socha@intel.com>

* Code review remarks. Part.2
Co-authored-by: Tomasz Socha <tomasz.socha@intel.com>
Co-authored-by: Adam Rogowiec <adam.osewski@intel.com>
Co-authored-by: Sang Ik Lee <sang.ik.lee@intel.com>

* first working version

* Added using v1 for ArgMin and ArgMax

* code refactor

* Code review remarks introduced

* Code review remarks introduced

* fix style

* revert fix style

* empty
Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>
Co-authored-by: Sang Ik Lee <sang.ik.lee@intel.com>

* Remove usage of C99 array.

* Try to fix ABI mismatch.

* Suppress warning on AppleClang.

* Revert back to using C99 flexible array member and suppress warning
instead as suggested by https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html

* [MLIR] Update build system to use LLVM mono-repo for MLIR

* [MLIR] LLVM mono-repo conflicts

* Disable lit tests

* Fix formatting

* Fix memopt tests

* PR fix

* Fix view test
Co-authored-by: Nagy Mostafa <nagy.mostafa@gmail.com>

* Add new option to do a clean Ninja build.

* Enable Interpreter and unit-test.

* Enable json.

* Enable NOP backend.

* Enable tools.

* Enable CPU DEX ONLY on Linux.

* Quick hack to enable dex only on Mac.

* Enable onnx import.

* Cleanup gtest.

* Cleanup tbb_prebuilt.

* Fix typo.

* Move gtest include point.

* Fix gtest windows path.

* Remove temporary option.

* Keep GCPU upto date with INTERPRETER.

* Add missing file.

* Enable GCPU.

* Enable CPU codegen.

* Remove tabs.

* Revert "Merge branch 'silee2/gcpu' into silee2/ninja"

This reverts commit e513cd3fe3659a477af6e8fab6c1852a5b1493c3, reversing
changes made to 31dca3301cd89e15af23acd0d50aa06a1c5d6001.

* Enable PlaidML.
Co-authored-by: aslepko <44713115+aslepko@users.noreply.github.com>

* Robust debugging docs

* Add section on nbench and address comments from review

* Collaborate with Gauri to revise profiling section

* Revise and PR feedback

* Move note

* Fix wording

* Order sections more logically and fix a comma

* Phrasing fix on nbench_tf summary

* More prominent notice of experimental debug flags

* Better description for diagnostic tools

* Remove miscellaneous framework support

* clean up section

* Remove deprecated links

* Update sitemap to not use a page title

* Useful descriptions

* PR feedback

* Not a flag

* Prebuilt MLIR compile flag available

* Remove duplicate flag

* update pass manager example

* Meta documentation note in release notes

* Ensure docs build with lastest upstream ops

* Transpose op doc fixes

* Better intra-doc links

* Commas in csv format are important

* Final review with Gauri

* Remove dupes, CPU-specific envvars

* changes re: Comments from Gauri
Co-authored-by: Robert Kimball <robert.kimball@intel.com>
Co-authored-by: Sang Ik Lee <sang.ik.lee@intel.com>

* WIP

* WIP

* Refactored existing convolution

* Add Channel and num of filters bounds parameters to helper

* Works on unit-tests. v1 op gets converted and breaks

* Fixed group conv with groups in filters shape. Tests pass

* style

* add LIT tests

* Switch outer loop to affine loop

* re-org code

* PR fixes

* Revert ops.td

* PR fixes

* Remove halide.

* Remove stale code.

* Put back incorrectly removed code.

* Use optimal processor count for parallel build.

* Add missing dependency.

* Build LLVM at CMake config time and use CMake config file for dependencies.

* Temp save.

* Codegen functioning.

* Support prebuilt LLVM.

* Remove zlib.

* Relax CMake minimum version.

* Fix bug.

* Lower CMake version requirement.

* Pass more args.

* Add proper quote.

* Remove quotes.

* Try to separate flags for external projects.

* Don't pass flags to LLVM.

* Pass CXX abi.

* Remove stale print.

* Update gtest flags.

* Try to fix build issue.

* Patch LLVM to prevent building clang-tools-extra.
Co-authored-by: aslepko <44713115+aslepko@users.noreply.github.com>

* [MLIR] Use call back for MatMul.

* Use callback for Gemm.

* Use mkldnn callback for Softmax.

* Address PR feedback.

* Fix merge errors.

* Change to tail allocation struct.

* Use mkldnn callback for AvgPool.

* Add callbacks for AvgPoolBackprop, MaxPool, and MaxPoolBackprop.

* Fix merge errors.

* Use UnrankedMemRefType for callbacks.

* Address PR feedback.

* Cleanup.

* Address PR feedback.

* Fix a bug.

* Use global variable to hold attributes.

* Convert layout if needed for pooling.

* Address PR feedback.

* Add header.

* Address PR feedback.

* Update Copyright to 2017-2020.

* Address PR feedback.
Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>

* Changes version from v0 to default for Min and Max ops.

* Added broadcast option in variadic function.

* Added tests.

* Added test for opset8.

* Undo changes for Mean op.
Co-authored-by: Tomasz Dołbniak <tomasz.dolbniak@intel.com>
Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>

* add lookup table v2 fused op placeholder

* implement frop

* fix fprop and add ut

* turn off fluid test build

* add missed ut

* remove get_output_shared_ptr

* implement bprop

Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>

This reverts commit 1e58565a.

* [ONNX] Remove unnecesary Mean in opset 8

* Use opset1 instead of v1

* Fix merge artifact

* Use opset1 Divide instead of opset0
Co-authored-by: Robert Kimball <robert.kimball@intel.com>