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#include "Halide.h"
using namespace Halide;
int main(int argc, char **argv) {
int img_size = 10000;
int hist_size = 7;
Func im, hist;
Var x;
RDom r(0, img_size);
im(x) = (x * x) % hist_size;
hist(x) = cast<uint8_t>(0);
hist(im(r)) += cast<uint8_t>(1);
hist.compute_root();
RVar ro, ri;
hist.update()
.atomic()
.split(r, ro, ri, 8)
.gpu_blocks(ro)
.gpu_threads(ri);
// GPU doesn't support 8/16-bit atomics
Realization out = hist.realize({hist_size});
printf("Success!\n");
return 0;
}
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