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#pragma once
#include <c10/core/Backend.h>
#include <c10/util/Exception.h>
#include <iostream>
namespace c10 {
enum class Layout : int8_t { Strided, Sparse, Mkldnn, NumOptions };
constexpr auto kStrided = Layout::Strided;
constexpr auto kSparse = Layout::Sparse;
constexpr auto kMkldnn = Layout::Mkldnn;
inline Layout layout_from_backend(Backend backend) {
switch (backend) {
case Backend::SparseCPU:
case Backend::SparseCUDA:
case Backend::SparseHIP:
return Layout::Sparse;
case Backend::MkldnnCPU:
return Layout::Mkldnn;
default:
return Layout::Strided;
}
}
inline std::ostream& operator<<(std::ostream& stream, at::Layout layout) {
switch (layout) {
case at::kStrided:
return stream << "Strided";
case at::kSparse:
return stream << "Sparse";
case at::kMkldnn:
return stream << "Mkldnn";
default:
AT_ERROR("Unknown layout");
}
}
} // namespace c10
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