DR1 project requirements document (#5633)

* DR1 project requirements document

Added DR1 project requrements document

Signed-off-by: Efimov Alexander <a.efimov@samsung.com>

* remove unnecessary data

Signed-off-by: Efimov Alexander <a.efimov@samsung.com>

* rethink component list

Signed-off-by: Efimov Alexander <a.efimov@samsung.com>

* - Update Interpreter description
- Add Heterogeneous execution requirements

Signed-off-by: Efimov Alexander <a.efimov@samsung.com>

* add requirement for optimizer

* review fixes

Signed-off-by: Efimov Alexander <a.efimov@samsung.com>

* - Add custom-op related requirement
- Set optimization requirements

Signed-off-by: Efimov Alexander <a.efimov@samsung.com>

* revert mistake change

Signed-off-by: Efimov Alexander <a.efimov@samsung.com>

9 files changed, 1082 insertions, 0 deletions

diff --git a/docs/project/19_NN_Compiler_and_Runtime_SRS.rst b/docs/project/19_NN_Compiler_and_Runtime_SRS.rst
new file mode 100644
index 000000000..20ba338b7
--- /dev/null
+++ b/docs/project/19_NN_Compiler_and_Runtime_SRS.rst
@@ -0,0 +1,271 @@
+=============================
+SW Requirements Specification
+=============================
+
+.. contents::
+
+.. section-numbering::
+
+.. raw:: pdf
+
+   PageBreak oneColumn
+
+**Revision history**
+
++-------+-------------+----------------------------+--------------------------+---------------------+
+| Ver.  | Date        | Contents                   | Author                   | Approver            |
++=======+=============+============================+==========================+=====================+
+| 0.1   | 2019.04.22  | Initial version            | Rusyaev Roman            |                     |
++-------+-------------+----------------------------+--------------------------+---------------------+
+| 0.2   | 2019.04.23  | SE member in-charge review | Aleksei Kondrashov       |                     |
++-------+-------------+----------------------------+--------------------------+---------------------+
+| 1.0   | 2019.04.24  | Final Execution DR version | Rusyaev Roman            | Sung-Jae Lee        |
++-------+-------------+----------------------------+--------------------------+---------------------+
+| 1.1   | 2019.07.24  | DR1 version                | Efimov Alexander         | Sung-Jae Lee        |
++-------+-------------+----------------------------+--------------------------+---------------------+
+
+
+Introduction
+============
+
+Purpose and scope
+-----------------
+
+.. include:: project_purpose_and_scope.rst
+.. include:: project_terms_and_abbreviation.rst
+
+
+SW System Architecture
+----------------------
+
+The main components of the compiler are the following:
+
+- Configuration system
+- TensorFlow Importer (loads model in TensorFlow format and creates internal IR semantically equal to the given model)
+- ONNX Importer (loads model in ONNX format and creates internal IR semantically equal to the given model)
+- NN Package emitter
+
+|
+
+The main components of the runtime are the following:
+
+- Configuration system
+- API interface for loading and execution of NN models
+- NN Package parser
+- High Level optimizations
+- Model lowering pass (transforms IR created by API of imported from NN Package into low-level representation)
+- Low-Level optimizations on lowered IR
+- Lowered IR executor
+- Fallback model interpreter
+
+
+SW Functional Requirements
+==========================
+
+Frontend
+--------
+
+.. list-table::
+   :widths: 23 50 100
+   :header-rows: 1
+
+   * - ID
+     - Requirement Name
+     - Description
+
+   * - RF-1
+     - Frontend: Tensorflow
+     - The compiler should support import of NN model in Tensorflow format (parsing & verification)
+
+   * - RF-2
+     - Frontend: ONNX
+     - The compiler should support import of NN model in ONNX format (parsing & verification)
+
+   * - RF-3
+     - Frontend: lossless import
+     - The front-end should use the lossless approach while it is converting any NN model to IR
+
+   * - RF-4
+     - Frontend: Inception_v3
+     - The front-end should successful import the Inception V3 NN model
+
+   * - RF-5
+     - Frontend: MobileNet
+     - The front-end should successful import the MobileNet NN model
+
+
+High-Level optimization
+-----------------------
+
+No special requirements
+
+
+Low-Level optimization
+----------------------
+
+No special requirements
+
+
+Heterogeneous computing
+-----------------------
+
+.. list-table::
+   :widths: 23 50 100
+   :header-rows: 1
+
+   * - ID
+     - Requirement Name
+     - Description
+
+   * - RF-?
+     - HE: profiling
+     - Runtime should be able to gather or import information about execution time of specific operations
+
+   * - RF-?
+     - HE: scheduling
+     - Runtime should be able to use profile information to choose optimal assignment of operations to execution devices
+
+   * - RF-?
+     - HE: mixing backends
+     - Runtime should be able to mix different types of execution devices in one compilation to achieve best performance
+
+
+RNN
+---
+
+Detailed requirements will be described on DR1 milestone (end of July)
+
+
+SW Non-Functional Requirements
+==============================
+
+Performance
+-----------
+
+.. list-table::
+   :widths: 23 50 100
+   :header-rows: 1
+
+   * - ID
+     - Requirement Name
+     - Description
+   * - RNF-1
+     - Performance: input
+     - Inference time should be equal or less then models executed by ML frameworks of original model
+
+
+Reliability
+-----------
+
+.. list-table::
+   :widths: 23 50 100
+   :header-rows: 1
+
+   * - ID
+     - Requirement Name
+     - Description
+   * - RNF-2
+     - Reliability: input
+     - If the incorrect input data are provided inference should not be performed, but user should be informed about all errors which were met
+
+Security
+--------
+
+No special requirements
+
+Usability
+---------
+
+No special requirements
+
+Availability
+------------
+
+No special requirements
+
+Maintainability
+---------------
+
+No special requirements
+
+Extensibility
+-------------
+
+.. list-table::
+   :widths: 23 50 100
+   :header-rows: 1
+
+   * - ID
+     - Requirement Name
+     - Description
+   * - RNF-3
+     - Extensibility: operators
+     - Project design and implementation should provide possibility to add new built-in operators easily
+   * - RNF-4
+     - Extensibility: formats
+     - Project design and implementation should provide possibility to support new model formats easily
+   * - RNF-5
+     - Extensibility: custom operators
+     - Project design and implementation should provide possibility to extend set of supported operators by utilization of user-defined kernels and necessary metainformation
+
+
+Testability
+-----------
+
+.. list-table::
+   :widths: 23 50 100
+   :header-rows: 1
+
+   * - ID
+     - Requirement Name
+     - Description
+   * - RNF-5
+     - Testability: environment
+     - The test environment should be built in order to verify functionality, product build status, inference correctness and performance
+
+
+Portability
+-----------
+
+.. list-table::
+   :widths: 23 50 100
+   :header-rows: 1
+
+   * - ID
+     - Requirement Name
+     - Description
+   * - RNF-6
+     - Portability: Linux
+     - The functionality should be portable with Linux-based OS
+
+Scalability
+-----------
+
+No special requirements
+
+
+Configurability
+---------------
+
+No special requirements
+
+
+The source code
+---------------
+
+.. list-table::
+   :widths: 23 50 100
+   :header-rows: 1
+
+   * - ID
+     - Requirement Name
+     - Description
+   * - RNF-7
+     - Legislation
+     - All source code files should follows its original license and general project license without any conflicts
+   * - RNF-8
+     - Legitimacy
+     - The project should have its own general license
+   * - RNF-9
+     - Coding style
+     - Each source code file should follow the one defined for the project coding style
diff --git a/docs/project/19_NN_Compiler_and_Runtime_SRS.rst.cover b/docs/project/19_NN_Compiler_and_Runtime_SRS.rst.cover
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index 000000000..e99a4911f
--- /dev/null
+++ b/docs/project/19_NN_Compiler_and_Runtime_SRS.rst.cover
@@ -0,0 +1,7 @@
+=============================
+SW Requirements Specification
+=============================
+
+-------------------------
+SRR-RAJ0119ZZ-BERF-SRS001
+-------------------------
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diff --git a/docs/project/pdf_cover.tmpl b/docs/project/pdf_cover.tmpl
new file mode 100644
index 000000000..db16a6c58
--- /dev/null
+++ b/docs/project/pdf_cover.tmpl
@@ -0,0 +1,58 @@
+.. raw:: pdf
+
+   Spacer 0 50mm
+
+.. |doctitle| replace:: #{title}
+
+.. |doccode| replace:: #{subtitle}
+
+.. class:: titletable
+
+  +--------------------------------------+
+  | .. class:: sectmpcode                |
+  |                                      |
+  |   |doccode|                          |
+  +--------------------------------------+
+  |                                      |
+  +--------------------------------------+
+  | .. class:: title                     |
+  |                                      |
+  |   |doctitle|                         |
+  +--------------------------------------+
+  |                                      |
+  +--------------------------------------+
+
+.. raw:: pdf
+
+   Spacer 0 100mm
+
++------------------+--------------------------+--------------+--------------+
+| **Project Name** | 19 NN Compiler & Runtime |                             |
++------------------+--------------------------+--------------+--------------+
+| **Author**       | Alexander Efimov         | **Approver** | Sung-Jae Lee |
++------------------+--------------------------+--------------+--------------+
+| **Team**         | SRR/Deep System                                        |
++------------------+--------------------------+--------------+--------------+
+
+.. |samsunglogo| image:: samsung_logo.png
+  :width: 5em
+
+.. header::
+
+  .. class:: headertable
+
+    +---+----------------+
+    |   |.. class:: right|
+    |   |                |
+    |   | |samsunglogo|  |
+    +---+----------------+
+
+.. include:: <isonum.txt>
+
+.. footer::
+
+    Copyright |copy| 2019 Samsung Electronics Co.,LTD.
+
+.. raw:: pdf
+
+   PageBreak oneColumn
diff --git a/docs/project/pdf_main.tmpl b/docs/project/pdf_main.tmpl
new file mode 100644
index 000000000..c19845571
--- /dev/null
+++ b/docs/project/pdf_main.tmpl
@@ -0,0 +1,41 @@
+.. raw:: pdf
+
+   Spacer 0 72mm
+
+.. |doctitle| replace:: #{title}
+
+.. class:: title
+
+|doctitle|
+
+.. raw:: pdf
+
+   Spacer 0 83mm
+
+
+.. |samsunglogo| image:: samsung_logo.png
+  :width: 5em
+
+.. header::
+
+  .. class:: headertablemain
+
+    +-------------------------+------------------+
+    | .. class:: headertext   | .. class:: right |
+    |                         |                  |
+    | |doctitle|              |  |samsunglogo|   |
+    +-------------------------+------------------+
+
+.. footer::
+
+  .. class:: headertable
+
+      +-------------------------+----------------------------------------------------------+
+      | .. class:: headertext   | .. class:: headertext                                    |
+      |                         |                                                          |
+      |   ###Page###            |   Confidential Property of Samsung Electronics Co., Ltd. |
+      +-------------------------+----------------------------------------------------------+
+
+.. raw:: pdf
+
+   PageBreak oneColumn
diff --git a/docs/project/project_purpose_and_scope.rst b/docs/project/project_purpose_and_scope.rst
new file mode 100644
index 000000000..b153326ce
--- /dev/null
+++ b/docs/project/project_purpose_and_scope.rst
@@ -0,0 +1,13 @@
+The main goals of the project are to develop compiler and runtime for neural networks to perform inference for specified SW and HW platform.
+
+|
+| **2019 year goals:**
+
+- Support heterogeneous computing in NN compiler and runtime
+- Support TensorFlow NN model format
+- Support ONNX NN model format
+- Implement target-independent compiler optimizations
+- Improve inference performance in NN runtime
+- Develop common IR for both NN compiler and runtime
+- Support RNN in NN runtime
+- Support custom operators in NN runtime
diff --git a/docs/project/project_terms_and_abbreviation.rst b/docs/project/project_terms_and_abbreviation.rst
new file mode 100644
index 000000000..6298b9f43
--- /dev/null
+++ b/docs/project/project_terms_and_abbreviation.rst
@@ -0,0 +1,43 @@
+|
+
+**Terminology and Abbreviation**
+
+.. list-table::
+   :widths: 10 30
+   :header-rows: 0
+
+   * - OS
+     - Operating System
+   * - OS API
+     - Application interface of OS
+   * - HW
+     - Hardware
+   * - SW
+     - Software
+   * - NN
+     - Neural Network
+   * - NN model
+     - Neural network model (Instance of NN built with ML framework)
+   * - NN compiler
+     - The compiler for neural network
+   * - ML framework
+     - The machine learning framework
+   * - TF/TF Lite
+     - Tensorflow/Tensorflow Lite ML framework
+   * - IR
+     - Intermediate representation
+   * - CI/CI system
+     - Continuous integration system
+   * - UI
+     - The user interface
+   * - GUI
+     - The graphical user interface
+   * - CLI
+     - The command-line interface
+   * - CG
+     - Computational Graph
+   * - RNN
+     - Recurrent Neural Network
+   * - NN Package
+     - Serialized representation of NN model generated by NN Compiler
+
diff --git a/docs/project/samsung_logo.png b/docs/project/samsung_logo.png
new file mode 100644
index 000000000..0c2d680d6
--- /dev/null
+++ b/docs/project/samsung_logo.png