User Guide

Contents

Orphaned Task

Occurs when a task-begin annotation is executed that is not within an active parallel site.
Problem type: Orphaned task
ID
Code Location
Description
1
Task start
Represents the location and associated call stack when the task began execution.
Example
void main() {     ANNOTATE_TASK_BEGIN(name_task1); // Begin task     ANNOTATE_TASK_END(); }
This example does not execute a
ANNOTATE_SITE_BEGIN(sitename)
/
ANNOTATE_SITE_END()
annotation pair required to wrap the execution of a task
ANNOTATE_TASK_BEGIN(taskname)
/
ANNOTATE_TASK_END()
annotation pair.
Possible Correction Strategies
Always execute an
ANNOTATE_SITE_BEGIN(sitename)
annotation before executing an
ANNOTATE_TASK_BEGIN(taskname)
annotation. You may need to add an
ANNOTATE_SITE_BEGIN(sitename)
/
ANNOTATE_SITE_END()
annotation pair in the same function, or in some calling function.
An orphaned task is effectively ignored by the Suitability and Dependencies tool analysis, so you should fix the orphaned task code and run the Suitability and Dependencies tools again.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.