ISO/IEC TS 19570:2018
Programming Languages — Technical Specification for C++ Extensions for Parallelism
This document describes requirements for implementations of an interface that computer programs written in the C++ programming language can use to invoke algorithms with parallel execution. The algorithms described by this document are realizable across a broad class of computer architectures.
There is a possibility of a subset of the functionality described by this document being standardized in a future version of C++, but it is not currently part of any C++ standard. There is a possibility of some of the functionality in this document never being standardized, or of it being standardized in a substantially changed form.
The goal of this document is to build widespread existing practice for parallelism in the C++ programming language. It gives advice on extensions to those vendors who wish to provide them.
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70588.pdf
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General
4.1 Namespaces and headers
4.2 Feature-testing recommendations
5 Parallel exceptions
5.1 Header
6 Execution policies
6.1 Header
6.2 Unsequenced execution policy
6.3 Vector execution policy
6.4 Execution policy objects
7 Parallel algorithms
7.1 Wavefront Application
7.2 Non-Numeric Parallel Algorithms
7.2.1 Header
7.2.2 Reductions
7.2.3 Inductions
7.2.4 For loop
7.2.5 No vec
7.2.6 Ordered update class
7.2.7 Ordered update function template
8 Task Block
8.1 Header
8.2 Class task_cancelled_exception
8.3 Class task_block
8.4 Function template define_task_block
8.5 Exception Handling
9 Data-Parallel Types
9.1 General
9.2 Header
9.3 simd ABI tags
9.4 simd type traits
9.5 Where expression class templates
9.6 Class template simd
9.6.1 Class template simd overview
9.6.2 simd width
9.6.3 Element references
9.6.4 simd constructors
9.6.5 simd copy functions
9.6.6 simd subscript operators
9.6.7 simd unary operators
9.7 simd non-member operations
9.7.1 simd binary operators
9.7.2 simd compound assignment
9.7.3 simd compare operators
9.7.4 Reductions
9.7.5 Casts
9.7.6 Algorithms
9.7.7 Math library
9.8 Class template simd_mask
9.8.1 Class template simd_mask overview
9.8.2 simd_mask width
9.8.3 Constructors
9.8.4 Copy functions
9.8.5 Subscript operators
9.8.6 Unary operators
9.9 Non-member operations
9.9.1 Binary operators
9.9.2 Compound assignment
9.9.3 Comparisons
9.9.4 Reductions
9.9.5 where functions
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70588.pdf
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General
4.1 Namespaces and headers
4.2 Feature-testing recommendations
5 Parallel exceptions
5.1 Header
6 Execution policies
6.1 Header
6.2 Unsequenced execution policy
6.3 Vector execution policy
6.4 Execution policy objects
7 Parallel algorithms
7.1 Wavefront Application
7.2 Non-Numeric Parallel Algorithms
7.2.1 Header
7.2.2 Reductions
7.2.3 Inductions
7.2.4 For loop
7.2.5 No vec
7.2.6 Ordered update class
7.2.7 Ordered update function template
8 Task Block
8.1 Header
8.2 Class task_cancelled_exception
8.3 Class task_block
8.4 Function template define_task_block
8.5 Exception Handling
9 Data-Parallel Types
9.1 General
9.2 Header
9.3 simd ABI tags
9.4 simd type traits
9.5 Where expression class templates
9.6 Class template simd
9.6.1 Class template simd overview
9.6.2 simd width
9.6.3 Element references
9.6.4 simd constructors
9.6.5 simd copy functions
9.6.6 simd subscript operators
9.6.7 simd unary operators
9.7 simd non-member operations
9.7.1 simd binary operators
9.7.2 simd compound assignment
9.7.3 simd compare operators
9.7.4 Reductions
9.7.5 Casts
9.7.6 Algorithms
9.7.7 Math library
9.8 Class template simd_mask
9.8.1 Class template simd_mask overview
9.8.2 simd_mask width
9.8.3 Constructors
9.8.4 Copy functions
9.8.5 Subscript operators
9.8.6 Unary operators
9.9 Non-member operations
9.9.1 Binary operators
9.9.2 Compound assignment
9.9.3 Comparisons
9.9.4 Reductions
9.9.5 where functions
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