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#include "Halide.h"
using namespace Halide;
int main(int argc, char **argv) {
Target target = get_jit_target_from_environment();
if (!target.has_gpu_feature()) {
printf("[SKIP] No GPU target enabled.\n");
return 0;
}
// We'll have two input buffers. For one we'll copy to the device
// explicitly. For the other we'll do a device malloc and set
// host_dirty.
for (DeviceAPI d : {DeviceAPI::Default_GPU, DeviceAPI::CUDA, DeviceAPI::OpenCL}) {
if (!get_device_interface_for_device_api(d)) continue;
Buffer<float> a(100, 100), b(100, 100);
assert(!a.host_dirty());
a.fill(2.0f);
assert(!a.has_device_allocation());
assert(a.host_dirty());
a.copy_to_device(d);
assert(a.has_device_allocation());
assert(!a.host_dirty());
assert(!b.host_dirty());
b.fill(3.0f);
assert(!b.has_device_allocation());
assert(b.host_dirty());
b.device_malloc(d);
assert(b.has_device_allocation());
assert(b.host_dirty());
Func f;
Var x, y, tx, ty;
f(x, y) = a(x, y) + b(x, y) + 2;
f.gpu_tile(x, y, tx, ty, 8, 8, TailStrategy::Auto, d);
Buffer<float> out = f.realize({100, 100});
out.for_each_value([&](float f) {
if (f != 7.0f) {
printf("%f != 4.0f\n", f);
abort();
}
});
}
printf("Success!\n");
return 0;
}
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