Intel® VTune™ Amplifier XE 2013
Intel® VTune™ Amplifier XE
A New User Interface for VTune Amplifier Search Directories
With the recent updates to Intel’s VTune™ Amplifier XE 2013, the user interface for the symbol search directories has been streamlined. The new interface should facilitate faster symbol lookups and quicker finalization waits. You can find the new interface in the project properties dialog.
An example of using VTune™ Amplifier XE to profile Java class called by C/C++ application (JNI)
Article <Java support is back in VTune™ Amplifier XE> informs that VTune(TM) Amplifier XE 2013 already supports Java application, and Attaching to Java* processes for hardware event-based sampling is supported since VTune™ Amplifier XE 2013 Update 4.
Intel Xeon Phi Coprocessor April 2013 Developer Webinar Q&A Responses
Answers for the questions raised during the April session of our Introduction to High Performance Application Development for Intel® Xeon® & Intel® Xeon Phi™ processors class have been assembled. There were some duplicates and other questions we couldn't decipher, either because of the wording or because of implied context that was not spelled out. We tried to address the rest, which appear below:
What's the overhead of having the Intel(R) VTune(TM) Amplifier XE for Linux* modules loaded but un-used and no collection is happening?
What's the overhead of having the Intel(R) VTune(TM) Amplifier XE for Linux* modules loaded but un-used and no collection is happening?
If there is no collection in progress, there is no execution time overhead of having the driver loaded. There would also be very little overhead wrt memory.
You can let the module be loaded at boot time (e.g., via the install-boot-script script, which is the default) and not worry about it. Unless data is being collected by VTune Amplifier XE, there will be no latency impact on system perf
Performance tuning of OpenCL* applications on Intel® Xeon Phi™ coprocessor using Intel® VTune™ Amplifier XE 2013
Download Article
Download Performance tuning of OpenCL* applications on Intel® Xeon Phi™ coprocessor using Intel® VTune™ Amplifier XE 2013 [PDF 603KB]
Setting Text Size for Intel® Parallel Studio XE Components on Linux* Operating Systems
Intel® Advisor XE, Intel® VTune™ Amplifier XE, and Intel® Inspector XE all use system GTK* fonts for drawing. They need a vector (scalable) font installed as a default font for the user to show text in different sizes: bigger for titles, smaller for tables and text.
However, you may want to change the font or text size for preference or accessibility reasons. We do not recommend changing the system fonts, obviously, and they are easy enough to override with user-defined fonts stored separately for each user.
Measuring Load Imbalance using the Intel® Vtune™ Amplifier XE
OpenMP on the Intel® Xeon Phi™ coprocessor performs as well as on Intel® Xeon processors. However, the slower clock on the Intel Xeon Phi coprocessor and the sheer number of threads accentuates OpenMP overhead. In most cases, the problem is either load imbalance or a significant amount of serial execution and is rarely the overhead itself.
Let’s take a look at the following Intel Vtune screenshot.
Intel® VTune™ Amplifier XE 2013 Update 6 What's New
Intel® VTune™ Amplifier XE 2013 Update 6 release is now available for download at Intel Registration Center
New for Update 6!
What's new? Update 6 - Intel® VTune™ Amplifier XE 2013
Intel® VTune™ Amplifier XE 2013
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