Intel® VTune™ Amplifier uses a sampling driver to enable the hardware Event-Based Sampling (EBS) analysis. During Intel System Studio production installation, the sampling driver can be installed for host system so that we can collect the performance data for applications that running on host system. However the sampling driver should also be installed on the target system if we want to collect the event-based sampling data for the application that running on target system.
This document provides information about asynchronous data transfer, asynchronous computation and memory management without data transfer. This document includes code examples of common usage scenarios. The examples in this article are in Fortran only.
Two different Fortran directives are used for data transfer and wait for completion.
The directive for data transfer only, with asynchronous option is:
This document provides information about asynchronous data transfer, asynchronous computation and memory management without data transfer. This document includes code examples of common usage scenarios. The examples in this article are in C/C++ only.
Two different C++ pragmas are used for data transfer and wait for completion.
The pragma for data transfer only, with asynchronous option is:
Training Resources for the Intel® Many Integrated Core (Intel MIC Architecture)
Just getting started with The Intel® Xeon PhiTM Coprocessor and need some help getting started OR are you already developing for Phi but looking for more advanced help? This is the page for you.
The first step is to join the MIC/Phi community. All information related is linked from a central web portal. You need to add this site to your Bookmarks:
Disclosure of H/W prefetchers control on some Intel processors
This article discloses the MSR setting that can be used to control the various h/w prefetchers that are available on Intel processors based on the following microarchitectures: Nehalem, Westmere, Sandy Bridge, Ivy Bridge, Haswell, and Broadwell.
Intel® Advisor XE 2015 now includes some new capabilities for analyzing Intel® Xeon Phi™ coprocessor applications. This article steps through this analysis on an Intel Xeon Phi coprocessor and also outlines some of the new capabilities.
Building the application
The application we are using is one of the samples included in the Intel Advisor XE. It is located in C:\Program Files (x86)\Intel\Advisor XE 2015\samples\en\C++\tachyon_Advisor.zip. To build the application on the Microsoft Windows* OS:
Intel® VTune™ Amplifier for Systems is available through Intel(R) System Studio product. It is a software performance analysis tool for users developing serial and multithreaded applications on Embedded and Mobile system. VTune Amplifier supports multiple usage modes for various target systems depending on your development environment and target environment. In this article, we will describe the Vtune Amplifier usage modes and the recommended modes for different target systems.