Module multicast

The comm actor that provides message casting and result accumulation.

Structs

CastMessage

The is used to start casting a message to a group of actors.

CastMessageEnvelope

An envelope that carries a message destined to a group of actors.

DestinationPort

Destination port id of a message. It is a PortId with the rank masked out, and the messege is always sent to the root actor because only root actor can be accessed externally. The rank is resolved by the destination Selection of the message. We can use DestinationPort::port_id(rank) to get the actual PortId of the message.

Uslice

A union of slices that can be used to represent arbitrary subset of ranks in a gang. It is represented by a Slice together with a Selection. This is used to define the destination of a cast message or the source of accumulation request.

Statics

CAST_ORIGINATING_SENDER

Used inside headers to store the originating sender of a cast.

Traits

CastInfo

Functions

set_cast_info_on_headers