Visible to Intel only — GUID: GUID-384B9B74-CE63-433A-BF81-D8CC23762E11
Visible to Intel only — GUID: GUID-384B9B74-CE63-433A-BF81-D8CC23762E11
stackwalk-mode
Choose between online and offline modes to analyze stacks during Survey analysis.
GUI Equivalent
Project Properties > Analysis Target > Survey Hotspots Analysis > Advanced > Stack unwinding mode
Syntax
--stackwalk-mode=<string> |
Arguments
Argument |
Description |
---|---|
online |
Analyze stacks during collection. |
offline |
Analyze stacks after collection. |
Default
offline
Actions Modified
collect=survey
Usage
Set to offline in the following cases:
- Survey analysis overhead exceeds 1.1x
- A large quantity of data is allocated on the stack, which is a common case for Fortran applications or applications with a large number of small, parallel, OpenMP* regions
Otherwise, set to online. This mode improves stack accuracy but increases overhead.
Example
Run a Survey analysis. Analyze stacks during collection.
advisor --collect=survey --stackwalk-mode=online --project-dir=./advi_results -- ./myApplication