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* delete obselete files * move files * build * update cmake * update cmake * fix build * reorg examples * update cmake for example and test
109 lines
3.2 KiB
C++
109 lines
3.2 KiB
C++
#ifndef CK_STATICALLY_INDEXED_ARRAY_MULTI_INDEX_HPP
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#define CK_STATICALLY_INDEXED_ARRAY_MULTI_INDEX_HPP
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#include "common_header.hpp"
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namespace ck {
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template <index_t N>
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using MultiIndex = StaticallyIndexedArray<index_t, N>;
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template <typename... Xs>
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__host__ __device__ constexpr auto make_multi_index(Xs&&... xs)
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{
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return make_statically_indexed_array<index_t>(index_t{xs}...);
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}
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template <index_t NSize>
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__host__ __device__ constexpr auto make_zero_multi_index()
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{
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return unpack([](auto... xs) { return make_multi_index(xs...); },
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typename uniform_sequence_gen<NSize, 0>::type{});
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}
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template <typename T>
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__host__ __device__ constexpr auto to_multi_index(const T& x)
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{
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return unpack([](auto... ys) { return make_multi_index(ys...); }, x);
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}
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// Here should use MultiIndex<NSize>, instead of Tuple<Ys...>, although the former
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// is the alias of the latter. This is because compiler cannot infer the NSize if
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// using MultiIndex<NSize>
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// TODO: how to fix this?
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template <typename... Ys, typename X>
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__host__ __device__ constexpr auto operator+=(Tuple<Ys...>& y, const X& x)
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{
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static_assert(X::Size() == sizeof...(Ys), "wrong! size not the same");
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constexpr index_t NSize = sizeof...(Ys);
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static_for<0, NSize, 1>{}([&](auto i) { y(i) += x[i]; });
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return y;
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}
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template <typename... Ys, typename X>
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__host__ __device__ constexpr auto operator-=(Tuple<Ys...>& y, const X& x)
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{
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static_assert(X::Size() == sizeof...(Ys), "wrong! size not the same");
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constexpr index_t NSize = sizeof...(Ys);
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static_for<0, NSize, 1>{}([&](auto i) { y(i) -= x[i]; });
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return y;
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}
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template <typename... Xs, typename Y>
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__host__ __device__ constexpr auto operator+(const Tuple<Xs...>& x, const Y& y)
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{
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static_assert(Y::Size() == sizeof...(Xs), "wrong! size not the same");
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constexpr index_t NSize = sizeof...(Xs);
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Tuple<Xs...> r;
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static_for<0, NSize, 1>{}([&](auto i) { r(i) = x[i] + y[i]; });
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return r;
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}
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template <typename... Xs, typename Y>
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__host__ __device__ constexpr auto operator-(const Tuple<Xs...>& x, const Y& y)
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{
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static_assert(Y::Size() == sizeof...(Xs), "wrong! size not the same");
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constexpr index_t NSize = sizeof...(Xs);
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Tuple<Xs...> r;
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static_for<0, NSize, 1>{}([&](auto i) { r(i) = x[i] - y[i]; });
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return r;
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}
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template <typename... Xs, typename Y>
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__host__ __device__ constexpr auto operator*(const Tuple<Xs...>& x, const Y& y)
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{
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static_assert(Y::Size() == sizeof...(Xs), "wrong! size not the same");
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constexpr index_t NSize = sizeof...(Xs);
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Tuple<Xs...> r;
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static_for<0, NSize, 1>{}([&](auto i) { r(i) = x[i] * y[i]; });
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return r;
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}
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// MultiIndex = index_t * MultiIndex
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template <typename... Xs>
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__host__ __device__ constexpr auto operator*(index_t a, const Tuple<Xs...>& x)
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{
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constexpr index_t NSize = sizeof...(Xs);
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Tuple<Xs...> r;
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static_for<0, NSize, 1>{}([&](auto i) { r(i) = a * x[i]; });
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return r;
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}
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template <typename... Xs>
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__host__ __device__ void print_multi_index(const Tuple<Xs...>& x)
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{
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printf("{");
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printf("MultiIndex, ");
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printf("size %d,", index_t{sizeof...(Xs)});
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static_for<0, sizeof...(Xs), 1>{}(
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[&](auto i) { printf("%d ", static_cast<index_t>(x.At(i))); });
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printf("}");
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}
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} // namespace ck
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#endif
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