OpenMP Related Tips
Compiler Methodology for Intel® MIC ArchitectureOpenMP Related TipsOpenMP* Loop Collapse DirectiveUse the OpenMP collapse-clause to increase the total number of iterations that will be partitioned...
View ArticleSelective Use of gatherhint/scatterhint Instructions
Compiler Methodology for Intel® MIC ArchitectureSelective Use of gatherhint/scatterhint InstructionsOverviewThe -mGLOB_default_function_attrs=”use_gather_scatter_hint=on” compiler option can be used to...
View ArticleAdvanced Optimizations for Intel® MIC Architecture, Low Precision Optimizations
Compiler Methodology for Intel® MIC Architecture Advanced Optimizations for Intel® MIC Architecture, Low Precision OptimizationsOverviewThe latest Intel Compilers (released after the 13.0.039 Beta...
View ArticleAdvanced Optimizations for Intel® MIC Architecture
Compiler Methodology for Intel® MIC ArchitectureAdvanced OptimizationsOverviewThis chapter details some of the advanced compiler optimizations for performance on Intel® MIC Architecture AND most of...
View ArticleGetting Started with Intel® Composer XE 2013, Compiler Pragmas and Directives
Compiler Methodology for Intel® MIC Architecture Getting Started with Intel® Composer XE 2013, Compiler Pragmas and DirectivesOverviewCompiler options allow a user to control how source files are...
View ArticleExpectations for User Source Code Changes
OverviewAlthough most codes can run in the Intel® Many Integrated Core Architecture (Intel® MIC Architecture) with little to no changes, to run EFFICIENTLY may require changes in user source code. This...
View ArticleMemory Layout Transformations
Compiler Methodology for Intel® MIC ArchitectureMemory Layout TransformationsOverviewThis chapter examines a useful user code transformation: moving from data organized in an Array of Structures (AoS)...
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Intel System Studio auf der ESE 2014
Hallo Embedded Entwickler – habt ihr fragen zu Intel(R) System Studio?Ich stehe euch auf der ESE vom 3.12 bis 5.12 zur Verfügung!Bis bald in...
View Article常见的向量化技巧
面向英特尔® MIC 架构的编译器方法本文收集了关于向量化的各种技巧： 在向量循环中处理用户定义的函数调用如果您希望对具有用户定义的函数调用的循环进行向量化处理，（可能要重建代码）请将函数调用作为向量基本函数。在基本函数中指定单位步长访问如果您的基本函数访问单位步长中的内存，您可以通过两种方式来编写：· 线性整数对统一指针进行索引·...
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Intel Vectorization Toolkit: 3. Determine Loop Candidates Using Intel...
---------------------------------------------------------------------------------------Back to the 6-step Process for Vectorization...
View ArticleVectorization Essentials
Compiler Methodology for Intel® MIC Architecture Vectorization Essentials OverviewThis chapter covers topics in vectorization. Vectorization is a form of data-parallel programming. In this, the...
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Introducing 4th Generation Intel® Atom™ Processor, BayTrail, to Android...
AbstractIntel has launched the 4th generation Intel Atom processor, code-named “BayTrail”. This latest Atom processor is a multi-core system-on-chip (SoC) that integrates the next generation Intel®...
View ArticleVectorizing TBB parallel_for block
This article demonstrates on how to write vector friendly code inside TBB parallel_for block. Consider the below code snippet: $ cat test1.cc #include <iostream> #include <tbb/tbb.h>...
View ArticleC++11 Features Supported by Intel® C++ Compiler
Starting in 11.0 the Intel(R) C++ Compiler has supported some of the C++11 features (previously called C++0x). With the latest release of Intel C++ Composer XE for Windows*, Linux* and Mac OS* X 2013...
View ArticleSorting Algorithms: Merge Sort
Merge sort algorithm is a comparison-based sorting algorithm. In this sample, we use top-down implementation, which recursively splits list into two halves (called sublists) until size of list is 1....
View ArticleGraph Algorithms: Shortest Path
Dijkstra algorithm is a graph search algorithm that solves the single-source shortest path problem for a graph with non-negative edge path costs, producing a shortest path tree. The algorithm requires...
View ArticleUnderstanding Gather-Scatter instructions and the -gather-scatter-unroll...
Gather-Scatter instructions may not be the optimal choice of instructions when you are trying to achieve superior performance on the Intel® Xeon Phi™ coprocessor. However, if your code uses indirect...
View ArticleC++14 Features Supported by Intel® C++ Compiler
C++14 features currently supported by Intel C++ Composer XE for Windows*, Linux* and Mac OS* X 2013 SP1 show in the table below. Standard#Language FeaturesVersion 11.1Version 12.0Version 13.0Version...
View ArticleStatic linking with -mkl, -ipp or -tbb may give unresolved references
Reference Number : dpd200252274Version : Intel® C++ Compiler and Intel® Fortran Compiler versions 13.0.1, 13.1.any, 14.0.0 and 14.0.1Operating System : Linux*, OS X*Problem Description : When an...
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Program Optimization through Loop Vectorization
Download ArticleDownload Program Optimization through Loop Vectorization [PDF 617KB]OverviewIn this white paper, we will use a very simplified finite difference stencil computation of the following...
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