Structured task hierarchy for a parallel runtime

摘要

The present invention extends to methods, systems, and computer program products for a structured task hierarchy for a parallel runtime. The parallel execution runtime environment permits flexible spawning and attachment of tasks to one another to form a task hierarchy. Parent tasks can be prevented from completing until any attached child sub-tasks complete. Exceptions can be aggregated in an exception array such that any aggregated exceptions for a task are available when the task completes. A shield mode is provided to prevent tasks from attaching to another task as child tasks.