User Guide


Command Line Analysis

Intel® VTune™
introduces the HPC Performance Characterization analysis based on applications that are compute-sensitive.
HPC Performance Characterization analysis helps identify opportunities to optimize CPU, memory, and FPU utilization for compute-intensive or throughput applications. The HPC Performance Characterization analysis type is a starting point for understanding the performance landscape of your application. Use this analysis type to improve application performance by increasing the number of floating-point operations per second (GFLOPS) and reducing the overall application run time. The analysis collects data related to CPU, memory, and FPU utilization. Additional scalability metrics are available for applications that use OpenMP or MPI runtime libraries.


-collect hpc-performance [-knob <
>] [--] <
For the most current information on available knobs (configuration options) for the HPC Performance Characterization analysis, enter:
-help collect hpc-performance
The following example runs the HPC Characterization analysis on a Linux* application with enabled memory bandwidth analysis:

vtune -collect hpc-performance -knob collect-memory-bandwidth=true ./home/test/myApplication

What's Next

When the data collection is complete, do one of the following to view the result:

Product and Performance Information


Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804