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Tune my OpenCL project with Intel® VTune™ Amplifier XE 2013


Hi everyone

    i want to tune my OpenCL application with Vtune. so  i just follow the instructions to profile my project with Vtune.

   here is the url :

   However only i can see is the collecting data for host code. i cann't find the cycle for my kernel.

  Did i miss some setting for my Vtune project? I will be glad if someone can help me or send me a teaching video or document to profile the OpenCL sample.

  And i will list the steps i have done for my setting.

 step1. download the Intel® VTune™ Amplifier XE 2013 and install it.

 step2. open the Vtune gui and create a new profile project

 step3. open the Project Properties window, and add two lines to the User-defined Environment Variables table:


 step4. also include the execution file of my openCL application, this appication is a simple array operation code with adding two element and store the result to another array.

            and the name of my kernel function is hello_world

 step5. then i press the start button, and the Vtune report the result. But i can not fine any information about the kernel.

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You should be able to do analyze performance through sampling profiling using the Intel® VTune™ Amplifier XE. Below are some useful links that'll help you with the process. If you are still facing issues, feel free to post here. Thanks, Raghu
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