Correct Compiler Options?

Analyzers

Talk to fellow users of Intel Analyzer tools (Intel VTune™ Profiler, Intel Advisor)

Correct Compiler Options?

396 Views

Dear all

Following the tutorial "Getting Started", I tried to reproduce the results of the "First Use Wizard" for the example "gsexample". However, using icc 10.1.015 and VTune 9.0 (Buil:1448) for Linux with the compiler options -g -O2, I'm not able to see the "Most active functions In Your Application" (Sampling Hotspot Summary) as outlined in the tutorial:

Instead of (e.g.) the function names "ProcessBuffer", "Store2Load" etc.for the module gsexample2a, I only see for the module gsexample2a.

However, when omiting the compiler option-O2 when building gsexample2a, I see more or less the same functions in the Sampling Hotspot Summary.

Is it an effect of the optimization that in the first case (with -O2), the "Most active functions In Your Application" of the not-optimized program disapear?

Thanks and best regards,

Paul.

Link Copied

0 Replies

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.