AI Engine And Auto Vectorizer

Features

1. Stream Support

   VSI Auto-vectorizer supports stream arguments for int16, int32, float, cint16, cint32 and cfloat type. In C/C++ source code, users can use top function complex arguments and using VSI auto-vectorizer, users can generate AIE kernels with input/output stream types.

2. Partial Vectorization

   If the user already has a code in aie format, and there is just one or few functions that are still in c++, he can use the "partial vectorization" to only vectorize the required functions.

3. VSI Complex Operations

   Auto vectorizer supports complex arithmetic operations and generates vector complex intrinsic functions/API in AIE Engine kernel. To use the complex type feature, users need to include the "_complex.h" header file in the C/C++ source code.

   Auto-Vectorizer supports following complex arithmetic operations for float, int32 and int16 types.

   • Complex Addition
   • Complex Subtraction
   • Complex Multiplication
   • Complex Multiplication with int/float
   • Complex Multiply-Accumulate
   • Complex Multiply-Subtraction
   • Complex Conjugate
   • Complex Normilization
   • Complex Reduction

Here is an example of some c++ code before and after being vectorized by the VSI Auto-Vectorizer

For a complete understanding of the AI Engine and Auto Vectorizer please look at the complete documentation here