Re: [Gems-users] Parameter ordered

[Mike Marty <mikem@xxxxxxxxxxx>]

The persistent request messages need point-to-point ordering because a
deactivate from a processor cannot be received before the persistent
activate from the same processor.

An alternate implementation, that does not require any point-to-point
ordering, is to collect acknowledgement messages before sending the
persistent deactivate message.

--Mike

> Ok. But why only are the persistent requests and persistent acks sent through
> an ordered virtual network? Is it necessary to send this kind of messages
> through an ordered network? Could the protocol fail if you send these
> messages however you want?
>
> Thanks.
>
>
> > The ordered parameter (specified in Slicc when you declare network
> > MessageBuffers for each virtual network) determines whether or not
> > adaptive routing is used.  Hence when set to true, this ordering is really
> > "point-to-point" ordering in that messages from point A to point B are not
> > re-ordered.
> >
> > The global ordering of the network, seperate from the point-to-point
> > ordering, is determined by what topology is used (CROSSBAR,
> > HIERARCHICAL_SWITCH, FILE_SPECIFIED, etc).
> >
> > --Mike
> >
> > > Hello!!!
> > >
> > > I would like to know what is the meaning of the "ordered" parameter of
> > > the "getFromNetQueue" function (in Network.h)?
> > >
> > > Thanks.
> > >
> > > Best regards.
> > > _______________________________________________
> > > Gems-users mailing list
> > > Gems-users@xxxxxxxxxxx
> > > https://lists.cs.wisc.edu/mailman/listinfo/gems-users
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