Problem when using profile-guided optimization

Problem when using profile-guided optimization

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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:

program main

    print *, "hello"

end program main


then i compile it like this:

ifort -prof-gen hello.f90

then I run the program

./a.out

and then compile it again:

ifort -prof-use hello.f90

but I got the following error message:

/tmp/hello.f90(1): warning #11507: Value profiling mismatch for 'MAIN__'.

Does anyone know why? did I miss something?

Thanks.

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Bild des Benutzers Thomas Willhalm (Intel)

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.

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Thank you!
I'll try to post this question there to see if anyone konws. :)

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