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VTune

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Intel® VTune™ Profiler is a performance analysis tool for serial and multithreaded applications. Use VTune Profiler:
  • to determine the most time-consuming (hot) functions in your application
  • to discover on very fine-grained level which section of code (loop, source code line or even data field) do not effectively utilize available processor time
  • to analyse communication behavior that affects threaded performance
  • for accurate analysis with low overhead
  • for serial and multithreaded applications
    • MPI (MPT, OpenMPI)
    • OpenMP, Intel® oneAPI Threading Building Blocks, native threads
  • Languages:
    • C/C++/C#, Fortran, Python and others

(Formerly Intel® VTune™ Performance Analyzer with Intel® Thread Profiler)

Intel-logo.png
Developer: Intel
Platforms:
Category: Performance Analyzer
License: Commercial
Website: Intel® VTune™ Amplifier XE homepage


Using Intel VTune on Nehalem cluster

Load the necessary module. For example:

module load compiler/intel 
module load performance/vtune # set up VTune environment
module load mpi/impi          # if MPI needed 

Compilation example:

ifort -g -O2 prog.f90

Analyzing MPI applications:

 mpirun –n4 amplxe-cl -c hotspots –r my_result -- path_to_my_app

Using Intel VTune on Cray machines

Load the necessary module. For example:

module swap PrgEnv-cray PrgEnv-intel # set up MPI environment too 
module load performance/vtune        # set up VTune environment

Compilation example:

ftn -dynamic -g -O2 prog.f90

Analyzing MPI applications:

 aprun –n4 amplxe-cl -c hotspots –r myResult-@@@{at} -- path_to_my_app

See also

External links