Intel Vtune profiler instead of Intel oneapi.

[eliopoulos]

When I run Intel oneapi command prompt the window writes Intel Vtune profiler. Why does this happen? Additionally, when I run my Fortran program, it starts faster and after a few seconds it becomes slower and remains slower.

[Mark_Lewy]

If you mean that you see something like this when you open the oneAPI  command prompt:

:: initializing oneAPI environment...
   Initializing Visual Studio command-line environment...
   Visual Studio version 17.12.4 environment configured.
   "C:\Program Files\Microsoft Visual Studio\2022\Professional\"
   Visual Studio command-line environment initialized for: 'x64'
:  advisor -- latest
:  compiler -- latest
:  debugger -- latest
:  dev-utilities -- latest
:  dpcpp-ct -- latest
:  dpl -- latest
:  ipp -- latest
:  ippcp -- latest
:  mkl -- latest
:  mpi -- latest
:  ocloc -- latest
:  pti -- latest
:  tbb -- latest
:  umf -- latest
:  vtune -- latest
:: oneAPI environment initialized ::

C:\Program Files (x86)\Intel\oneAPI>

Then that is just the expected output from the command to set up oneAPI for use with the command prompt.  vTune (a performance profiler) is just part of a standard installation.

We would need more information about your program to determine why it is slowing down, but it is highly unlikely to be anything to do with the above.

[eliopoulos]

This is what I see. The window title is Intel VTune Profiler 2024.0.0. I am also attaching my program along with the input files.

[eliopoulos]

To run the program, you should set /Qmkl and /integer-size:64.

[Mark_Lewy]

That command window looks fine (apart from the odd title).  I'm not noticing any slow down with ifx 2025.2 on my machine, so can't offer any suggestions why it should on yours.