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Halide is an open source programming language created in 2010.

#218on PLDB 14Years Old
Download source code:
git clone

a language for fast, portable computation on images and tensors

Example from the web:
Func blur_3x3(Func input) { Func blur_x, blur_y; Var x, y, xi, yi; // The algorithm - no storage or order blur_x(x, y) = (input(x-1, y) + input(x, y) + input(x+1, y))/3; blur_y(x, y) = (blur_x(x, y-1) + blur_x(x, y) + blur_x(x, y+1))/3; // The schedule - defines order, locality; implies storage blur_y.tile(x, y, xi, yi, 256, 32) .vectorize(xi, 8).parallel(y); blur_x.compute_at(blur_y, x).vectorize(x, 8); return blur_y; }

Language features

Feature Supported Token Example
// A comment
Line Comments //
// A comment
Semantic Indentation X

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