Collective Intrinsic Subroutines

The following table lists collective intrinsic subroutines.

Collective Operation
Name	Procedure Type	Description
CO_BROADCAST	Intrinsic Subroutine	Broadcasts a value to other images.
CO_MAX	Intrinsic Subroutine	Finds maximum value across images.
CO_MIN	Intrinsic Subroutine	Finds minimum value across images.
CO_REDUCE	Intrinsic Subroutine	Performs user-defined reduction across images.
CO_SUM	Intrinsic Subroutine	Performs sum reduction across images.