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2021.2.0 CPP Compiler PGO error

adamlevar
Beginner
1,091 Views

I'm unable to get program guided optimization to work with the latest C+ compiler release.

 

llvm-prof fails with the following error:

 

Instrumenting project 'project'...
Executing 'project'
Merging data...
Executing 'llvm-profdata.exe'
Error: C:\Program Files (x86)\Intel\oneAPI\compiler\2021.2.0\windows\bin\llvm-profdata.exe returned error code 1

warning: project.profraw: Unsupported instrumentation profile format version
error: No profiles could be merged.

 

Any ideas?  

 

I've tried to replace llvm-profdata with LLVM latest version, and 11.0 without success.

 

Thanks for your help! 

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4 Replies
ArpitaP_Intel
Moderator
1,023 Views

Hi Adam,


Thanks for reaching out to us.


I could successfully use program guided optimization to work with latest C++ compiler release.


Please elaborate the steps you followed to achieve program guided optimization and provide a small reproducer if possible.


Alternatively, you can follow the steps provided in the below links:


https://software.intel.com/content/www/us/en/develop/documentation/cpp-compiler-developer-guide-and-reference/top/optimization-and-programming-guide/profile-guided-optimization-pgo/profile-an-application-with-instrumentation.html#profile-an-application-with-instrumentation


https://software.intel.com/content/www/us/en/develop/documentation/cpp-compiler-developer-guide-and-reference/top/optimization-and-programming-guide/profile-guided-optimization-pgo/profile-guided-optimization-report.html


Let me know if issue persists.


Regards,

Arpita



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adamlevar
Beginner
995 Views

Hi Arpita,

 

Thanks for your suggestion.  I was able to get PGO to work with the command line options once I switched to the C++ classic compiler.

 

Regards,

Adam

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ArpitaP_Intel
Moderator
979 Views

Hi Adam,


Its good to know that your issue is resolved. Can I go ahead and close this thread?


Regards,

Arpita


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ArpitaP_Intel
Moderator
938 Views

Hi Adam,

 

Thanks for the confirmation. If you need any additional information, please submit a new question as this thread will no longer be monitored.

 

Regards,

Arpita

 

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