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124 lines
3.3 KiB
C++
124 lines
3.3 KiB
C++
// SPDX-License-Identifier: MIT
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// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
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#pragma once
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#include "data_type.hpp"
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namespace ck {
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// Caution: DO NOT REMOVE
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// intentionally have only declaration but no definition to cause compilation failure when trying to
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// instantiate this template. The purpose is to make the implementation of atomic_add explicit for
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// each datatype.
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template <typename X>
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__device__ X atomic_add(X* p_dst, const X& x);
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template <>
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__device__ int32_t atomic_add<int32_t>(int32_t* p_dst, const int32_t& x)
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{
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return atomicAdd(p_dst, x);
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}
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template <>
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__device__ uint32_t atomic_add<uint32_t>(uint32_t* p_dst, const uint32_t& x)
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{
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return atomicAdd(p_dst, x);
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}
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template <>
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__device__ float atomic_add<float>(float* p_dst, const float& x)
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{
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return atomicAdd(p_dst, x);
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}
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template <>
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__device__ double atomic_add<double>(double* p_dst, const double& x)
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{
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return atomicAdd(p_dst, x);
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}
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template <>
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__device__ float2_t atomic_add<float2_t>(float2_t* p_dst, const float2_t& x)
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{
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constexpr auto I0 = Number<0>{};
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constexpr auto I1 = Number<1>{};
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const vector_type<float, 2> vx{x};
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vector_type<float, 2> vy{0};
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vy.template AsType<float>()(I0) =
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atomicAdd(c_style_pointer_cast<float*>(p_dst), vx.template AsType<float>()[I0]);
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vy.template AsType<float>()(I1) =
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atomicAdd(c_style_pointer_cast<float*>(p_dst) + 1, vx.template AsType<float>()[I1]);
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return vy.template AsType<float2_t>()[I0];
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}
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template <>
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__device__ double2_t atomic_add<double2_t>(double2_t* p_dst, const double2_t& x)
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{
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constexpr auto I0 = Number<0>{};
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constexpr auto I1 = Number<1>{};
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const vector_type<double, 2> vx{x};
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vector_type<double, 2> vy{0};
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vy.template AsType<double>()(I0) =
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atomicAdd(c_style_pointer_cast<double*>(p_dst), vx.template AsType<double>()[I0]);
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vy.template AsType<double>()(I1) =
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atomicAdd(c_style_pointer_cast<double*>(p_dst) + 1, vx.template AsType<double>()[I1]);
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return vy.template AsType<double2_t>()[I0];
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}
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// Caution: DO NOT REMOVE
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// intentionally have only declaration but no definition to cause compilation failure when trying to
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// instantiate this template. The purpose is to make the implementation of atomic_max explicit for
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// each datatype.
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template <typename X>
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__device__ X atomic_max(X* p_dst, const X& x);
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template <>
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__device__ int32_t atomic_max<int32_t>(int32_t* p_dst, const int32_t& x)
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{
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return atomicMax(p_dst, x);
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}
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template <>
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__device__ uint32_t atomic_max<uint32_t>(uint32_t* p_dst, const uint32_t& x)
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{
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return atomicMax(p_dst, x);
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}
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template <>
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__device__ float atomic_max<float>(float* p_dst, const float& x)
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{
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return atomicMax(p_dst, x);
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}
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template <>
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__device__ double atomic_max<double>(double* p_dst, const double& x)
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{
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return atomicMax(p_dst, x);
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}
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template <>
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__device__ float2_t atomic_max<float2_t>(float2_t* p_dst, const float2_t& x)
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{
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constexpr auto I0 = Number<0>{};
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constexpr auto I1 = Number<1>{};
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const vector_type<float, 2> vx{x};
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vector_type<float, 2> vy{0};
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vy.template AsType<float>()(I0) =
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atomicMax(c_style_pointer_cast<float*>(p_dst), vx.template AsType<float>()[I0]);
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vy.template AsType<float>()(I1) =
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atomicMax(c_style_pointer_cast<float*>(p_dst) + 1, vx.template AsType<float>()[I1]);
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return vy.template AsType<float2_t>()[I0];
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}
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} // namespace ck
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