vtune

the installation process for the VTune (intel® vtune™ Performance Analyzer) VTune makes it easy to optimize application performance through a graphical user interface without recompiling. --[Baidu Encyclopedia] Because of the need to use vtune analysis in a development project, the project that was developed is run in

1. Introduce Vtune is an Intel performance analysis tool that can analyze the characteristics of a particular application, detect the characteristics of the entire system, identify the hotspot bottlenecks, and provide developers with a good idea for optimization. 2.Vtune Download, installation Vtune has a Windows version and a Linux version, with a charge, trial,

1.VTune Introduction The VTune Visual Performance Analyzer (Intel VTune Performance Analyzer) is a tool for analyzing and optimizing program performance as Intel provides developers with an analysis tool specifically designed to find hardware and software performance bottlenecks. It determines the hotspot (hotspot) of the program and finds the cause of unsatisfa

In the previous article, we introduced how to use the Intel compiler to improve program performance by improving the execution efficiency after program compilation. However, to improve the software performance, you can not only improve the compilation and Execution Code, but also analyze the program performance to identify performance bottlenecks and focus on optimization. Intel vtune visual performance analyzer is an analysis tool provided by Intel f

. You can create a kernel with only a few modifications. more information... Intel? FORTRAN complier for Microsoft Windows *With Microsoft Visual Studio 6.0 and. is compatible with the Compaq Visual Fortran (CVF). For example, after installing the CVF 6.6 development environment, you can directly use the compiler through the command line of the system. More information... Intel? FORTRAN compiler for Linux *It greatly improves the level of support for Linux and industry, provides the ability to p

Install Intel (R) VTune (TM) AmplifierXE2011 on Ubuntu * 11.04 through Sudo. No error message is reported throughout the process. Use amplxe-gui to call the graphical interface of the tool, create a project, and select the target application. Then, HotspotsAnalysis is used to analyze the target program, and an error occurs unexpectedly. The same problem also occurs in the parallel analysis (ConcurrencyAnal Install Intel (R)

Or the hard-pressed Web Search job last time. If it was done, forget it. I ran the program to vtune and found several hot programs. It seems that there is always a little bit of sorrow in my mind. So we went on the road of optimization. In fact, this road is easy to complete. In particular, cainiao like me have used up all the optimization tricks and this road has come to an end. I'm not going to take advantage of my talent. Let's just focus on it. Ba

1. applications to be verifiedProgramThe following startup tool aims to ensure the consistency of the environment and follow up debugging. Method: Start the CMD product, set the environment variable, and enter vtuneenv. 2. select "new", "analyzer projects", "Call Graph wizard", and "OK". Select the type to be debugged. Next, select the executable program to be debugged in application, enter the required parameters in "command line arguments" and click Finish. 3. at this time,

Error messages and scenarios: Run amplxe-gui after the export environment variable LD_PRELOAD = $ XTERN_ROOT/dync_hook/interpose. so. The preceding error occurs. The new dynamic link library requires a higher version of libstdc ++. so.6 of VTune. The libstdc ++. so.6 version of VTune 2013 updated 17 is libstdc ++. so.6.0.12. If you run the following command: Strings libstdc ++. so.6.0.12 | grep GLIBC :

, refer to the instructions retried samples and instructions retried events columns. The values of these two columns are absolute values, it directly reflects the number of commands executed by this module. It can be found that these values are slightly less than those without throw. Of course, this does not mean that the code is executed less in the case of throw, which is only the error of vtune sampling. 2.although the total number of executed com

. It monitors the transmission of bus (memory bus). If an hitm event occurs, it indicates that the cache at the response end on the bus is being modified, which exactly reflects the root cause of the false sharing problem. Description of the vtune manual for ext_snoop.all_agents.hitm: This event counts the Snoop responses to bus transactions. responses can be counted separately by type and by bus agent. with the 'This _ agent' mask the event counts Sn

Recently contacted the VTune amplifier to do performance optimization. For the average person, often do not want to read so many words to see those instructions. And most want to see is an example, I read the example of amplifier, finally did not find what I want. Very simply, what I want is the performance of the custom time. And after watching the example, I have the impression that from the beginning of the program to the end of the run. such as

Error message: Error Cannot display data The data cannot be displayed: there is no viewpoint application for the data Error scenario: The above error occurs when performing a Hardware Event-based Sampling Analysis 0 Analysis on the program.

Copy Code code as follows: #!/bin/bash #!/usr/bin/expect-f #!/usr/bin/env Bash Yum Install-y expect wget Cd/root wget http://172.16.92.99/share/tar/vtune_amplifier_xe_2013_update15.tar.gz wget http://172.16.92.99/share/tar/EVAL_L_VT__VGXB-

Copy Code code as follows: #!/bin/bash #!/usr/bin/expect-f #!/usr/bin/env Bash Yum Install-y expect wget Cd/root wget http://172.16.92.99/share/tar/vtune_amplifier_xe_2013_update15.tar.gz wget http://172.16.92.99/share/tar/EVAL_L_VT__VGXB-

make it a parallel version of the code. Finally using Intel? VTune? Amplifier analyzes the memory bandwidth of this parallel code to further optimize performance with high-bandwidth memory. This tutorial provides these three versions of the code (myserialapp.c,myvectorizedapp.c , and myparallelapp.c) as an attachment.The sample code is a stream-processing application with two buffers containing inputs and outputs. The first input dataset contains two

Last week, I went to Shanghai intel to attend a technical training on multi-core programming. In general, the special technical training of large companies has been carefully designed, the system is relatively complete, the Knowledge coverage is relatively complete, emphasizing the experiment and hands-on links. The same is true for Intel's multi-core technology training. The system from the basic thread knowledge to the multi-thread programming method model, from OpenMP to the

",number_of_primes);40 printf("\nNumber of 4n+1 primes found:%d\n",number_of_41primes);41 printf("\nNumber of 4n-1 primes found:%d\n",number_of_43primes);42 return 0;43 } Because this code containsForSo we only need to add a simple OpenMP loop programming instruction to the Code to evaluate the potential performance of the Code to be processed by the thread and run in parallel. Specifically, we only need to add the # pragma OMP parallel for statement to row 21st.

signatures) used to enable Web Service Security consume more resources than some traditional technologies. The increasing demand for resources will inevitably become a stumbling block to the adoption of Web Services in the enterprise environment. However, the new generation of IA64 processors provide better performance for such technologies. At the same time, the Intel Pentium 4 processor using advanced 800 MHz system bus and hyper-thread (HT) technology provides performance that can better mee

choice. Intel C compiler is ICC, is also a good product, download link is http://registrationcenter-download.intel.com/akdlm/irc_nas/2567/l_ccompxe_intel64_2011.10.319.tgz. A series of Intel products have non-commercial versions, such as vtune, which can be downloaded for free, Vtune download link is: http://registrationcenter-download.intel.com/akdlm/irc_nas/2526/vtune_amplifier_xe_2011_update8.tar.gz We