* CPU: Optimize Eigen based rowwise vector broadcast

* CPU: Remove the need for transposing the broadcast vector

* CPU: Optimize to a replicate expression

* CPU: Change code model to medium and compile for the host CPU
instead of hardcoding BDW

* remove ParameterizedConstant
* use simpler element Type definition
* Move TraitedType to NGVM directory

* Adds CMake variables `MKLDNN_BUILD_COMMAND_EXTRA_FLAGS`
  and `MKLDNN_CMAKE_EXTRA_FLAGS`.

* aliased output unit test
* add support for aliased outputs to INTERPRETER and CPU

* Implement 'not' in interpreter and CPU; add unit tests for same

* Fix compile failure on CI

* Initial pass as supporting ngraph_dist builds with both gcc and clang.  Includes deprecated targets to support Jenkins CI with old feature and development branches that may not have these changes.

* Added build_all, check_all, and install_all targets

* Broke build and check steps into separate make sections.  Each step already generated its own log.

* Updated README.md

* Fixed a bug in the docker build context, which was overly general and included the build directories.  This caused a loop where the docker images rebuilt into multi-gigabyte images after testing was run (yikes).  New context is the contrib/docker directory, which is tiny.  No more image rebuilds.

* Rename the docker image to be less generic, so that another tool doesn't accidentally use the same name

* Change compatibility target "make check_cpu" to run "make check_all", so that all builds are done.

* Add a conversion step to change the test-suite names for all unit tests, to include an indicator for what compiler was used for the builds (_gcc vs _clang).

* Unfortunately, modifying the test-suite name with compiler suffix did not show in Jenkins test results.  Now modifying classname instead.

* Switch builds to be RelWithDebInfo, which turns on optimization and includes debug symbols.  Remove verbose output when creating tarball, to reduce log fluff.

* used something other than aligned_alloc for mac

* Fix compile error for aligned_free on Mac

* remove use of ParameterizedConstant from unit test. Now using Constant instead. Constant is not a templated class.

* move ParameterizedTensorView to NGVM directory

* element_type cleanup

* add unit test

* fix Parameter as output in INTERPRETER

* cpu working

* parameter_as_output passing for INTERPRETER

* still works

* cleanup

* Add and use get_shape() and get_element_type() on Input/Output

* Fix Output

* Formatting.

* Format.

* Use reference

* Convolution.

* Test GitHub-JIRA integration, nothing useful in this commit

NGTF-388 #comment Testing JIRA integration

* WIP on convolution

* Type checking for convolution

* Docstrings for convolution

* Add convolution reference kernel; it works on some unit tests copied and pasted from my old branch.

* Bugfix for dilated conv, and improvement to conv test generation

* Remove get_arguments calls from convolution stuff

* Add convolution to CPU; also a few fixes to the test generation stuff

* Add copyright header to convolution ref script

* Move copyright header to the correct place

* A few more tests

* Remove fallback behavior of blanking out the convolution ref file, since we're not generating it from the build system anymore

* Delete stale comment

* Merge stuff for the convolution ref script

* Clean up rebase mess

* Review comments

* Review comment (n_foo -> foo_count)

* Replace function->get_result()->get_outputs() call with function->get_outputs()

* Test for parameter straight to output

* Roll back cmake modification for INTERPRETER autodiff

CPU: Optimize Eigen Cwise sum

* tuple -> xla_tuple (+headers)

xla_get_tuple_element

get_tuple_element headers

adding get_tuple_element + fixes

get_tuple_element

XLAFunction; breaks tests

compiling libngraph.so w/ XLAFunction and Function; fixing tests is next

build & test fixes

formatting

m_arguments -> get_arguments (first step to hide m_arguments)

removing some get_arguments

get_arguments -> get_arguments_DEPRECATED

more DEPRECATED

formatting

m_arguments no more! at least technically

halfway

tests pass

xla_function.cpp/hpp

move defs into cpp files

get_input_argument -> get_input_op

formatting

* add xla_function.* and assert -> throw

* assert -> throw, remove cassert

* removing emitter.cpp; poor guy got left behind

* addressing feedback p1

* rename GetTupleElement -> GetOutputElement

* adding a comment to get_arguments_FOR_GRAPH_REWRITE_ONLY

* removing virtual off set_name

clean-up, formatting fixes

cleanup2

clean up 3

tests pass

remove printf

switching to the old version of TupleType::==

fix tuple unit test crash when using gcc

topological sort pass to call the utility function
clone util to be used by frameworks e.g. for fprop cache

Performance benchmarking and utils

LSTM benchmark test

performance counters

CPU: Run static destructors at teardown

Serializer test: use INTERPRETER, not CPU

* WIP generalized dot

* Add some multi-axis 3D, 4D, and 5D tests

* Add test on some 'pretty big' tensors

* Reworked dot to have less flexible axis-pairing behavior

* Backprop for dot... and a fix for a dumb bug in CoordinateTransform

* Forgot to commit some stuff in merge

* Disable tests that currently don't work on CPU

* Fix temporarily disabled test that should pass on NGVM and INTERPRETER but wasn't due to new axis-selection convention for dot

* Remove obsolete ScalarTensorProduct kernel/instruction

* Review comment

* s/n_dot_axes/dot_axis_count/

* s/dot_axis_count/reduction_axes_count/

* Adapt CPU emitter dot fallback to new kernel

* add support for n-dimensional operations by calling runtime/kernels

* rename cpu backend classes and files

* add tuple support to INTERPRETER

* move ndarray out of runtime to test where it belonged

* fix Tuple op per review comment

* subgraph labels

* adding more documentation for Label

* minor fixes

* Remove unnecessary dependency on codegen in interpreter

* Check for incorrect return type and undeclared parameters in Function's constructor

* Address review comments

* Add scarier error message when the result node has null return type (should never happen)
* Add new constructor for Function that doesn't require the return type, and unit test for same

* New Interpreter backend

* PR review comments

* More RP fixes

* oops

* make autodiff tests backend aware

* wip

* wip

* more ops

* wip

* fix merge error

* merge fixes

* We were pushing parameters that have been seen to the stack in traverse nodes. This causes an infinite loop in RNNs.

* fix formatting

* style fix for Scott

* Simpler kernel for broadcast

* Fixed behavior for integer divide-by-zero, added unit tests

* Strided and higher-dimensional slice (just tested to 3D)

* Higher-dimensional sum

* Replace-slice de-Eigenized; NOT TESTED AT HIGHER DIMENSIONS YET

* Correct sum behavior when eliminating zero-length axes; add unit tests; also, add higher-dim unit tests for replace-slice

* Higher-dimensional reduce, 'cause hey, why not?

* Remove BroadcastScalarInstruction

* Adding test for an observed failure at trivial sum on 5-tensors

* De-Eigenized and higher-dimmified concat

* Replace 'auto' in the kernels

* temporary delete to ease merge

* Re-insert tests that were deleted to ease merge

* Refactor view-iteration

* De-Eigenize reshape

* Rework divide kernel to use std::enable_if to distinguish between floating and non-floating types

* Update docs to reflect newly implemented cases in several ops

* Rename parameters to View for more clarity; remove axis_walk_order (it's redundant)

* Formatting

* More terminological rejiggering

* De-Eigenize scalar-tensor product

* De-Eigenize dot

* Update docstrings

* Remove 'implementation status' tables from docstrings

* Change step -> strides everywhere for consistent terminology

* Formatting

* Replace asserts in view.cpp with exceptions

* Fix typo

* Fix incorrect result type in dot1d test (ouch...)

* Add missing support for Float64 to ngvm/external_function

* Add int16 and uint16 (how was this missing?)

* A few more additions relative to the missing element types

* Disable tests that will not pass on CPU; they can still be run with test/unit-test --gtest_also_run_disabled_tests --gtest_filter='DISABLED_NGVM.*'

* Move project_ and inject_ functions to common.[ch]pp, not view.[ch]pp

* Rename View to CoordinateTransform

* Add prefix ++ and += to CoordinateIterator