mirror of
https://github.com/ROCm/composable_kernel.git
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1d0b1ea6b0
* Remove template from Reducton operation classes and add template to their operator() and GetIdentityValue() interfaces
* Change to unary elementwise operators and the reduce_unary_operator (class for mapping) and dependent variations in all host layers
* Remove the data type template parameter from reduce_binary_operator (class for mapping) and dependent variations in host layers
* Add InMemoryDataOperatonSupportedOnDataType to check the matching between data type and InMemoryDataOperation
* Use struct-scope operator template instantiation for binary and unary element-wise operations
* Change a few more elementwise operations to use template for operator()
* Tiny correction in Normalize operator
* Add static_assert to check the data type appliability for some reduction accumulator and element-wise operatons
* Correction in some examples with regard to using ReduceAccDataType
* Use static_assert for UnaryDivide
* Update to merged codes to use Element-wise operations and Reduction Accumulator operations correctly
* Tiny fix with regard to SetWorkSpacePointer()
[ROCm/composable_kernel commit: 1f543bfa79]
292 lines
10 KiB
C++
292 lines
10 KiB
C++
/*******************************************************************************
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*
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* MIT License
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*
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* Copyright (c) 2020 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*******************************************************************************/
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#ifndef CK_REDUCTION_OPERATOR_HPP
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#define CK_REDUCTION_OPERATOR_HPP
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#include "config.hpp"
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#include "data_type.hpp"
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#include "type.hpp"
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namespace ck {
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namespace reduce {
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// Every binary operator used in reduction is represented by a templated functor class. Each functor
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// class must provide at least
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// three members:
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// 1) GetIdentityValue() -- the interface to return the "identity element" for the binary
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// operator, "identity element" is the unique
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// element in the algebraic space that doesn't affect the value of other elements
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// when operated against them, and the concept is similar to zero vector in
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// vector space
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// (http://pages.cs.wisc.edu/~matthewb/pages/notes/pdf/linearalgebra/VectorSpaces.pdf).
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// 2) IsCompatibleInMemoryDataOperation() -- return true if the reduction task corresponding to this
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// operator can use the InMemoryDataOperation to finalize, or else it return false 3) operator() --
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// the first argument of the operator must be both an input & output, and the corresponding variable
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// usually stores
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// the accumulated result of many operator() calls; the second argument is only an
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// input. For indexable binary
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// operator, the second version of operator() has third argument (which is an
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// output) to indicate whether the
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// accumulated value (the first argument) has changed, in which case the recorded
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// accumulated index also need be
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// changed.
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struct Add
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{
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template <typename T>
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__host__ __device__ static constexpr T GetIdentityValue()
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{
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return type_convert<T>(0.0f);
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};
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__host__ __device__ static constexpr bool
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IsCompatibleInMemoryDataOperation(InMemoryDataOperationEnum operation)
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{
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return operation == InMemoryDataOperationEnum::AtomicAdd ||
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operation == InMemoryDataOperationEnum::Set;
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};
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template <typename T>
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__host__ __device__ inline constexpr void operator()(T& a, T b) const
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{
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static_assert(is_same<T, float>::value || is_same<T, double>::value ||
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is_same<T, int32_t>::value,
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"The data type is not supported by the Add accumulator!");
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a = a + b;
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}
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};
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struct Mul
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{
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template <typename T>
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__host__ __device__ static constexpr T GetIdentityValue()
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{
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return type_convert<T>(1.0f);
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};
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__host__ __device__ static constexpr bool
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IsCompatibleInMemoryDataOperation(InMemoryDataOperationEnum operation)
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{
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return operation == InMemoryDataOperationEnum::Set;
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};
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template <typename T>
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__host__ __device__ inline constexpr void operator()(T& a, T b) const
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{
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static_assert(is_same<T, float>::value || is_same<T, double>::value ||
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is_same<T, int32_t>::value,
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"The data type is not supported by the Mul accumulator!");
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a = a * b;
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}
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};
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struct Max
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{
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template <typename T>
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__host__ __device__ static constexpr T GetIdentityValue()
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{
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return NumericLimits<T>::Lowest();
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};
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__host__ __device__ static constexpr bool
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IsCompatibleInMemoryDataOperation(InMemoryDataOperationEnum operation)
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{
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// ToChange: atomic_max to be added
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return operation == InMemoryDataOperationEnum::Set;
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};
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template <typename T>
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__host__ __device__ inline constexpr void operator()(T& a, T b) const
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{
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static_assert(is_same<T, float>::value || is_same<T, double>::value ||
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is_same<T, half_t>::value || is_same<T, int32_t>::value ||
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is_same<T, int8_t>::value,
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"The data type is not supported by the Max accumulator!");
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if(a < b)
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a = b;
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}
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template <typename T>
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__host__ __device__ inline constexpr void operator()(T& a, T b, bool& changed) const
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{
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static_assert(is_same<T, float>::value || is_same<T, double>::value ||
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is_same<T, half_t>::value || is_same<T, int32_t>::value ||
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is_same<T, int8_t>::value,
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"The data type is not supported by the Max accumulator!");
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if(a < b)
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{
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a = b;
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changed = true;
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}
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}
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};
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struct Min
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{
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template <typename T>
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__host__ __device__ static constexpr T GetIdentityValue()
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{
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return NumericLimits<T>::Max();
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};
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__host__ __device__ static constexpr bool
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IsCompatibleInMemoryDataOperation(InMemoryDataOperationEnum operation)
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{
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// ToChange: atomic_min to be added
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return operation == InMemoryDataOperationEnum::Set;
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};
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template <typename T>
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__host__ __device__ inline constexpr void operator()(T& a, T b) const
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{
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static_assert(is_same<T, float>::value || is_same<T, double>::value ||
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is_same<T, half_t>::value || is_same<T, int32_t>::value ||
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is_same<T, int8_t>::value,
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"The data type is not supported by the Min accumulator!");
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if(a > b)
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a = b;
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}
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template <typename T>
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__host__ __device__ inline constexpr void operator()(T& a, T b, bool& changed) const
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{
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static_assert(is_same<T, float>::value || is_same<T, double>::value ||
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is_same<T, half_t>::value || is_same<T, int32_t>::value ||
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is_same<T, int8_t>::value,
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"The data type is not supported by the Min accumulator!");
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if(a > b)
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{
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a = b;
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changed = true;
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}
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}
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};
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struct AMax
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{
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template <typename T>
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__host__ __device__ static constexpr T GetIdentityValue()
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{
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return type_convert<T>(0.0f);
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};
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__host__ __device__ static constexpr bool
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IsCompatibleInMemoryDataOperation(InMemoryDataOperationEnum operation)
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{
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// ToChange: atomic_max to be added
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return operation == InMemoryDataOperationEnum::Set;
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};
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template <typename T>
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__host__ __device__ inline constexpr void operator()(T& a, T b) const
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{
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static_assert(is_same<T, float>::value || is_same<T, double>::value ||
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is_same<T, half_t>::value || is_same<T, int32_t>::value ||
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is_same<T, int8_t>::value,
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"The data type is not supported by the AMax accumulator!");
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if(a < b)
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a = b;
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}
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template <typename T>
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__host__ __device__ inline constexpr void operator()(T& a, T b, bool& changed) const
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{
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static_assert(is_same<T, float>::value || is_same<T, double>::value ||
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is_same<T, half_t>::value || is_same<T, int32_t>::value ||
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is_same<T, int8_t>::value,
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"The data type is not supported by the AMax accumulator!");
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if(a < b)
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{
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a = b;
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changed = true;
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}
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}
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};
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template <typename T>
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constexpr T GetIdentityValueForInMemoryDataOperation(InMemoryDataOperationEnum operation)
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{
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T result = ck::type_convert<T>(0.0f);
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if(operation == InMemoryDataOperationEnum::AtomicMax)
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result = ck::NumericLimits<T>::Lowest();
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return (result);
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};
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template <InMemoryDataOperationEnum Operation, typename DataType>
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struct InMemoryDataOperatonSupportedOnDataType
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{
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static constexpr bool value = false;
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};
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template <typename DataType>
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struct InMemoryDataOperatonSupportedOnDataType<InMemoryDataOperationEnum::AtomicAdd, DataType>
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{
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static constexpr bool value =
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is_same<DataType, float>::value || is_same<DataType, double>::value;
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};
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template <typename DataType>
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struct InMemoryDataOperatonSupportedOnDataType<InMemoryDataOperationEnum::AtomicMax, DataType>
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{
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static constexpr bool value =
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is_same<DataType, float>::value || is_same<DataType, double>::value;
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};
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template <typename DataType>
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struct InMemoryDataOperatonSupportedOnDataType<InMemoryDataOperationEnum::Set, DataType>
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{
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static constexpr bool value =
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is_same<DataType, float>::value || is_same<DataType, double>::value ||
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is_same<DataType, half_t>::value || is_same<DataType, bhalf_t>::value ||
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is_same<DataType, int8_t>::value || is_same<DataType, int32_t>::value;
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};
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template <typename DataType>
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struct InMemoryDataOperatonSupportedOnDataType<InMemoryDataOperationEnum::Add, DataType>
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{
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static constexpr bool value =
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is_same<DataType, float>::value || is_same<DataType, double>::value ||
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is_same<DataType, half_t>::value || is_same<DataType, int8_t>::value ||
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is_same<DataType, int32_t>::value;
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};
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}; // end of namespace reduce
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} // end of namespace ck
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#endif
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