CUTLASS: reduction_operators.h Source File

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reduction_operators.h
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1 /***************************************************************************************************
2 * Copyright (c) 2017-2019, NVIDIA CORPORATION. All rights reserved.
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29 #pragma once
30
31 #include "cutlass/cutlass.h"
32 #include "cutlass/tensor_ref.h"
33 #include "cutlass/numeric_types.h"
34 #include "cutlass/array.h"
35 #include "cutlass/functional.h"
36 #include "cutlass/numeric_conversion.h"
37
38 namespace cutlass {
39 namespace reduction {
40 namespace thread {
41
43
45 template <
46 typename ElementAccumulator_,
47 typename Element_,
48 int Count = 1
49 >
50 struct ReduceAdd {
51
52 //
53 // Type definitions
54 //
55
56 using ElementAccumulator = ElementAccumulator_;
57 using Element = Element_;
58 static int const kCount = Count;
59
60 using FragmentAccumulator = cutlass::Array<ElementAccumulator, kCount>;
61 using FragmentElement = cutlass::Array<Element, kCount>;
62
63 struct Params { };
64
65 //
66 // Data members
67 //
68
70 Params params;
71
72 //
73 // Methods
74 //
75
77 CUTLASS_HOST_DEVICE
78 ReduceAdd(Params params_ = Params()): params(params_) { }
79
81 CUTLASS_HOST_DEVICE
82 FragmentAccumulator operator()(
83 FragmentAccumulator accumulator,
84 FragmentElement element) const {
85
86 plus<FragmentAccumulator> op;
87
88 return op(accumulator, element);
89 }
90 };
91
93
94 } // namespace thread
95 } // namespace reduction
96 } // namespace cutlass
cutlass::reduction::thread::ReduceAdd::ReduceAdd
CUTLASS_HOST_DEVICE ReduceAdd(Params params_=Params())
Constructor.
Definition: reduction_operators.h:78
cutlass::reduction::thread::ReduceAdd::ElementAccumulator
ElementAccumulator_ ElementAccumulator
Definition: reduction_operators.h:56
cutlass
Definition: aligned_buffer.h:35
tensor_ref.h
Defines a structure containing strides, bounds, and a pointer to tensor data.
cutlass::reduction::thread::ReduceAdd
Mixed-precision reduction.
Definition: reduction_operators.h:50
cutlass::plus
Definition: functional.h:46
cutlass::reduction::thread::ReduceAdd::FragmentElement
cutlass::Array< Element, kCount > FragmentElement
Definition: reduction_operators.h:61
cutlass::reduction::thread::ReduceAdd::params
Params params
Parameters object.
Definition: reduction_operators.h:70
array.h
Statically sized array of elements that accommodates all CUTLASS-supported numeric types and is safe ...
cutlass::reduction::thread::ReduceAdd::kCount
static int const kCount
Definition: reduction_operators.h:58
numeric_conversion.h
Boost-like numeric conversion operator for CUTLASS numeric types.
CUTLASS_HOST_DEVICE
#define CUTLASS_HOST_DEVICE
Definition: cutlass.h:89
numeric_types.h
Top-level include for all CUTLASS numeric types.
cutlass::reduction::thread::ReduceAdd::Element
Element_ Element
Definition: reduction_operators.h:57
cutlass::reduction::thread::ReduceAdd::Params
Definition: reduction_operators.h:63
cutlass::reduction::thread::ReduceAdd::operator()
CUTLASS_HOST_DEVICE FragmentAccumulator operator()(FragmentAccumulator accumulator, FragmentElement element) const
Operator.
Definition: reduction_operators.h:82
cutlass::reduction::thread::ReduceAdd::FragmentAccumulator
cutlass::Array< ElementAccumulator, kCount > FragmentAccumulator
Definition: reduction_operators.h:60
cutlass.h
Basic include for CUTLASS.
functional.h
Define basic numeric operators with specializations for Array<T, N>. SIMD-ize where possible...