Software Tuning, Performance Optimization & Platform Monitoring
Discussion around monitoring and software tuning methodologies, Performance Monitoring Unit (PMU) of Intel microprocessors, and platform monitoring

Problem when using profile-guided optimization

morfast
Beginner
105 Views
Hi everyone, I'm using the lastest ifort 12.1.5 and I'm tesing the pgo (profile-guided optimization) feature, but encoutered problems. Here's my program, a quite simple hello world: [fortran]program main print *, "hello" end program main [/fortran]
then i compile it like this:

[bash]ifort -prof-gen hello.f90
[/bash] then I run the program

[bash]./a.out[/bash]
and then compile it again:
[bash]ifort -prof-use hello.f90[/bash] but I got the following error message:
[bash]/tmp/hello.f90(1): warning #11507: Value profiling mismatch for 'MAIN__'.[/bash] Does anyone know why? did I miss something? Thanks.
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2 Replies
Thomas_W_Intel
Employee
105 Views
Looks strange. Since this is specific to the compiler, I suggest that you ask in the Intel Fortran Compiler forum. I'm sure that they can help you there.
morfast
Beginner
105 Views
Thank you!
I'll try to post this question there to see if anyone konws. :)
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