VTune for 64-bit applications?

[postaquestion]

I've tried to use Intel VTune Performance Analyzer 9.0 for Linux*, but it seems to work only with 32-bit applications.

Can you please let me know if it is possible to use VTune for tuning 64-bit
Linux applications?

Thanks.

[TimP]

64-bit VTune works with both 32- and 64-bit applications, and includes both 32-bit and 64-bit libraries where necessary. 32-bit VTune works only with 32-bit applications. If installation worked correctly, you should have the 64-bit version on a 64-bit linux installation. The hardware, the OS, and VTune must all be 64-bit. If running VTune with an MPI library, that also must be a 64-bit version to work with a 64-bit application.

[pl73]

I installed VTune on 64 Red Hat Linux (CPU is Opteron AMD 4 cores). I used gcc compiler. It produces 64bit modules by default (or with -m64 key)and VTune can not recognize their format. If gcc option -m32 is used then it works OK.

Could you explain why it can be?

[TimP]

Unfortunately, the Opteron isn't supported.