Intel® VTune™ Amplifier XE

Intel® Software Development Tools 2015 Beta

It's time to try out the new Intel® Software Development Tools 2015 Beta and give us your feedback!  Registration is easy through the site. Additional information can be found at

This suite of products brings together exciting new technologies along with improvements to Intel’s existing software development tools (more details below): 

Using Pin tool to find the bit widths of variables

Hello everyone,

Please excuse me if this question is not relavent to this forum (I could not able to find a dedicated forum for pin tools)

I am new to pin tools and I am trying to instrument binaries in order to find the maximum bit widths of the variables used in the program. Can anyone suggest any idea to get started with this work. Thanks in advance.


error: incompatible types when assigning to type ‘uid_t’ from type ‘kuid_t’

My VTUNE installation was working in UBUNTU 12.10 perfectly. But then I upgraded to UBUNTU 14.04 LTS (kernel version:3.13.0-24-generic). It stopped working.

It says it can't load the drivers. I fixed it once before with the tutorial in the following link:

But this time when i try to build the drivers I get the following errors:

Missing source file information on Xeon Phi of C++ version of matrix example

I'm trying to use C++ to generate different versions of gemm based on the samples included in amplifier. All I've done is to make one of the multiplication function to be a template function and use it with a basic matrix class. If I compile the code on the host, amplifier clearly shows the source file, a header file, and the line and corresponding assembly code. But, I cannot do the same when I compile the code using the native mode. The columns for module/function/source file are empty. Here are the compilation and I'm doing the simple hotspot analysis.


Hi all,

I'm profiling a numerical model (+OpenMP) using the Intel Vtune advanced hot-spot (default) method.

The results shows that the KMP_ variables : KMP_WAIT_SLEEP ; KMP_X86_PAUSE ; KMP_STATIC_YIELDS, have a non-negligible overhead time.

In addition, another subroutine (PREDICTION) is shown to have a relatively large CPI (Pls. see the attach PNG).

no call stack information #2


I am running i7 Haswell architecture and I don't see "call stack information" in analysis as I had for Core2 in VTune.

Am I doing something wrong, or this architecture simply doesn't support this in hardware counters?

My config: Win 8.1 x64, project c++0x x64, ICC 14 SP1 update 2, VTune the latest to date.

no call stack information

Hello I  am running a MPI application which is a hybrid i.e having 2 ranks on mic0 and mic1 each and 3 ranks on xeon 

I am trying to run vtune analyzes  for the ranks on mic. I do this by using VTUNE GUI from the host and select launch application and run a script which has a mpirun for all the 5 ransks in it

I am facing some problems:-

In the type of analysis i go in Knights Corner Platform and ..

Intel Vtune is not loading data


I am running an application on Intel Vtune (vtune_amplifier_xe_2013) on the linux system (ubuntu).

using command-lin: /opt/intel/vtune_amplifier_xe_2013/bin64/amplxe-cl -collect snb-bandwidth -app-working-dir /usr/local/hadoop -- /usr/local/hadoop/projwc

However, intel vtune is not loading data into the target file.

Resolving Symbols for Intel® Manycore Platform System Stack (Intel® MPSS) in Intel® VTune™ Amplifier XE Analysis


Whenever Intel VTune Amplifier XE is unable to resolve symbols for libraries or the operating system, it lumps all the counts for that module together. Often, these lumped counts end up at the top of the hotspot list, skewing the analysis. By setting the correct search library path in an analysis, you can help Intel VTune Amplifier XE further resolve the counts into its constituent functions and thus rank them appropriately. 

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