Linux / Xenomai, VTUNE crashes process / freezes system

[currently posting here since the Intel Premier Support portal does not seem to work for me - I stop at the first step, where I am unable to select my product. Forced to use Internet Explorer 9]


I am currently evaluating VTUNE Amplifier XE on a peculiar Linux setup (Gentoo-based) with a Linux 3.10.17 kernel patched with the Xenomai RT framework, release 2.6.4. I am currently looking for a Linux equivalent to the 'SystemViewer' profiler available on VxWorks systems.

SDE Message: "No MPX support"


I'm trying to run an application compiled with gcc 5.2.0 using MPX instructions in SDE 7.31.0 on Linux. (-fno-omit-frame-pointer -fcheck-pointer-bounds -mmpx)

SDE is used as: sde -mpx-mode -- MyApplication

The executable seems to contain a bunch of MPX related symbols, such as


However, SDE outputs "No MPX support". What is this error-message hinting at? No MPX in the executable, no MPX support by SDE, no MPX support by the kernel....???

can decoder handle noisy or skipped frames?


I am trying to run decoder for the live streams. When i demux streams and isolate video stream, I just push it to Intel decoder. Under normal conditions, it Works well. However, decoder enter an unwanted state when i get an noisy or skipped frame from demuxer.

I tried to follow problem. In my case; when i get an abnormal packed frame from demuxer, Decoder generates  a noisy image. This is normal. But i espect that decoder can clean up this situation after any idr frame or key frame. In my trials, Intel decoder can not handle this abnormallity.

Documentation of VTune database formats?

One of my colleagues is wondering whether the internal format of the databases used by VTune to hold performance data is documented anywhere.

The PerfExpert tool generally uses HPCToolkit to collect performance data, but in many cases the users already have some VTune data, so if the format is documented we could expand the analysis to include data from multiple sources.

(We are also looking forward to future systems for which we expect VTune to be available earlier than HPCToolkit....)

modernization examples for Fortran/C/C++

I prepared a presentation on some cases where current Intel compilers don't automatically optimize examples of legacy code, pursuant to a request from Intel.  Although the request was for a presentation this month, there has been no response in the last 2 weeks, so I thought I would post it here in case anyone is interested.

One of the goals set for the presentation is to help those who are familiar with only one of the languages to interpret advice from Intel which is couched in another language, so I present exactly equivalent optimized source code in multiple languages.

MKL in C#


I'm testing MKL in a C# application.

I have to solve a linear system of complex matrix, so first of all I want to understand how the libraries works. 

I'm not expert of c++, and Marshaling too so I have tried to define the dll as best as I could. I have used the library installed with Parallel Studio XE.

 The example that I have done, doesn't work is there any one that can help me to understand why? 

Media for Mobile RTMP authentication for Android camera stream to server

We are evaluating the INDE Media for Mobile encoder for a new Android app we are developing. The app streams live from the phone camera to a server. I would like to know if there is a way to use authentication between the camera streaming sample app which I believe uses RTMP streaming and a server (WOWZA in particular).

Assine o Otimização