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#include "caffe2/core/context_gpu.h"
#include "caffe2/operators/floor_op.h"
#include "caffe2/utils/math.h"
namespace caffe2 {
template <typename T>
__global__ void FloorKernel(const int N, const T* X, T* Y) {
CUDA_1D_KERNEL_LOOP(i, N) {
Y[i] = std::floor(X[i]);
}
}
template <>
bool FloorOp<float, CUDAContext>::RunOnDevice() {
auto& X = Input(0);
CAFFE_ENFORCE_GT(X.numel(), 0);
auto* Y = Output(0, X.sizes(), at::dtype<float>());
FloorKernel<<<
CAFFE_GET_BLOCKS(X.numel()),
CAFFE_CUDA_NUM_THREADS,
0,
context_.cuda_stream()>>>(
X.numel(), X.data<float>(), Y->template mutable_data<float>());
C10_CUDA_KERNEL_LAUNCH_CHECK();
return true;
}
REGISTER_CUDA_OPERATOR(Floor, FloorOp<float, CUDAContext>);
} // namespace caffe2
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