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#include "Halide.h"
using namespace Halide;
int main(int argc, char **argv) {
if (get_jit_target_from_environment().arch == Target::WebAssembly) {
printf("[SKIP] Autoschedulers do not support WebAssembly.\n");
return 0;
}
if (argc != 2) {
fprintf(stderr, "Usage: %s <autoscheduler-lib>\n", argv[0]);
return 1;
}
load_plugin(argv[1]);
int W = 6400;
int H = 4800;
Buffer<uint16_t> input(W, H);
for (int y = 0; y < input.height(); y++) {
for (int x = 0; x < input.width(); x++) {
input(x, y) = rand() & 0xfff;
}
}
Var x("x"), y("y");
int num_stencils = 15;
std::vector<Func> stencils;
for (int i = 0; i < num_stencils; i++) {
Func s("stencil_" + std::to_string(i));
stencils.push_back(s);
}
stencils[0](x, y) = (input(x, y) + input(x + 1, y) + input(x + 2, y)) / 3;
for (int i = 1; i < num_stencils; i++) {
stencils[i](x, y) = (stencils[i - 1](x, y) + stencils[i - 1](x, y + 1) +
stencils[i - 1](x, y + 2)) /
3;
}
// Provide estimates on the pipeline output
stencils[num_stencils - 1].set_estimate(x, 0, 6200).set_estimate(y, 0, 4600);
// Auto-schedule the pipeline
Target target = get_jit_target_from_environment();
Pipeline p(stencils[num_stencils - 1]);
AutoSchedulerResults results = p.auto_schedule(target);
std::cout << "\n\n******************************************\nSCHEDULE:\n"
<< "******************************************\n"
<< results.schedule_source
<< "\n******************************************\n\n";
// Inspect the schedule
stencils[num_stencils - 1].print_loop_nest();
// Run the schedule
p.realize({6204, 4604});
printf("Success!\n");
return 0;
}
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