The Difference Between Advisor Survey and Amplifier Hotspots

Intel® Parallel Advisor 2011 (Advisor) and Intel® Parallel Amplifier 2011 (Amplifier) both provide tools to determine where time is spent in a running application. This is referred to as Survey in Advisor and Hotspots in Amplifier. The following list details similarities and differences between the two tools:

1. Both tools use the same low-overhead statistical sampling technology
2. Advisor Survey shows time spent in loops in addition to total time while Amplifier Hotspots does not
3. Advisor only provides a top-down call tree to help identify sites for parallelism, whereas Amplifier provides a top-down and bottom-up tree to help tune hot paths as well as individual functions
4. Advisor Survey is integrated into the Advisor Workflow

If you plan on using Advisor to help parallelize your existing application, it is recommended that you use Advisor Survey as the first step.

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