Re: [Gems-users] multi-point link

[Mike Marty <mikem@xxxxxxxxxxx>]

> Is it possible to specify multi-point links in FILE_SPECIFIED.
> For example. controller 1 connects to Controller 2,3,4, throught link 1 and any packet in in link 1 triggers events on controllers. 2,3,4.
>
> I can fake the functionality by connecting
> Controller 1 to internal switch-1 and then linking Controller-2,3,4 to switch-1.
>
> If I add to the destination field of a message. Would that generate different messages or one message on the common links.
>
> c1---------Int-switch 1 ----------c2
>                  |-------------------------c3
>                  |-----------------------------c4
>
> If C1 intends to send a message to c2,c3 and c4. If c1 encodes one message with destination field set to c2,c3.c4. What happens to that message ?
> one message upto int-switch 1 and then splits into multiple messages ?
> or 3 messages from c1.
>

The interconnect will fan-out messages whenever possible.  So I would
expect a single message to switch 1 which then fans out to c2, c3, c4.