The following table shows the revision history for this document.
| Section | Revision Summary |
|---|---|
| 10/19/2022 Version 2022.2 | |
| Document title | Changed title to AI Engine Kernel and Graph Programming Guide. |
| Document-wide changes | Added graph programming content from AI Engine Tools and Flows User Guide (UG1076). |
| Vector Arithmetic Operations | Updated examples syntax. |
| Rounding and Saturation Modes | Changed truncate to saturate. |
| Casting and Datatype Conversion | Updated the conversion functions (to_float() and to_fixed())
example. |
| Operator Overloading | Updated operators example code. |
| Data Reshaping | Updated to include aie::vector<int32,8>. |
| Matrix Multiplication | Updated section for the release. |
| Window-Based Access | Made clarifying updates. |
| Stream-Based Access | Added Stream Connection for Multi-Rate Processing subsection. |
| Relative Constraints | New topic. |
| MAC on 16x16 bits | Made clarifying updates. |
| Relative Constraints | New topic. |
| Graph Topologies | New section. |
| Other Constraints | Added async_repetition constraint. |
| 05/25/2022 Version 2022.1 | |
| Vector Data Types | Highlighted data type sizes supported natively by the AI Engine. |
| Vector Registers | Added the grow_replicate function on
aie::vector. |
| Loops | Added Loop Flattening and Unrolling section. |
| Scheduling Separator | Added information about scheduling separator pragma. |
| Parallel Streams Access | Added information about accessing two input and/or output streams in parallel. |
| Profiling Kernel Code | Added information about profiling kernel code using cycles() API. |
| Run-Time Parameter Specification | Removed section about AI Engine-to-AI Engine runtime parameter support. |
| Data Communication via AXI4-Stream Interconnect | Updated the section. |
| Window vs. Stream in Data Communication | Updated section to reflect wIndow multicast support. |
| Example Designs Using the AI Engine API | New chapter. Added new FIR Filter and Matrix Multiplication example designs. |
| Update, Extract, and Shift | Added information about using the update API on accumulators. |
| 11/10/2021 Version 2021.2 | |
| Scalar Processing Unit | Updated for AI Engine API. |
| AI Engine Memory | Added information about heap and stack size. |
| AI Engine API | New section. |
| Introduction to Scalar and Vector Programming | Updated for AI Engine API. |
| AI Engine API Overview | New section. |
| Vector Arithmetic Operations | |
| Vector Reduction | |
| Bit-wise Operations | |
| Data Comparison | |
| Data Reshaping | |
| Iterators | |
| Operator Overloading | |
| Multiple Lanes Multiplications - sliding_mul | |
| Matrix Multiplications - mmul | |
| API Operation Examples | |
| Loops | Updated information. |
| Floating-Point Operations | Updated for AI Engine API. |
| Single Kernel Programming using Intrinsics | Appendix describing programming using intrinsics. |
| Design Analysis and Programming using Intrinsics | Appendix describing design analysis and programming using intrinsics. |
| 07/19/2021 Version 2021.1 | |
| Accumulator Registers | Added information about print acc
value, as well as streaming data APIs. |
| Casting and Datatype Conversion | Added a note about the AI Engine floating-point. |
| Initialization | Added information about the static keyword. |
| Load and Store with Virtual Resource Annotations | Added new section. |
| Window vs. Stream in Data Communication | Added information. |
| DDR Memory Access through GMIO | Removed information related to PL GMIO. |
| Mapping Algorithm onto the AI Engine | Clarified description. |
| Coding with Intrinsics | Added information about the (always_inline) attribute. |
| 02/04/2021 Version 2020.2 | |
| Initial release. | N/A |