[ofiwg] EP_RDM question

[Hefty, Sean]

> >> 2a. If receive buffers are eventually posted at the target, message
> A
> >> will be delivered successfully.
> >> 2b. If the target endpoint is closed before receive buffers are
> >> available at the target for message A, an error is triggered at the
> >> sender indicating that message A was not delivered
> >> 2c. If message A has not been delivered within a given timeout (for
> any
> >> reason -- to include lack of buffers at the target), an error is
> >> triggered at the sender indicating that message A was not delivered
> >>
> >> In short: assuming a receiver a) continually posts receive buffers,
> and
> >> b) doesn't close its endpoint, do senders need to worry about
> credits
> >> with RDM endpoints?
> >
> > IMO, the ideal case is option 2.  This relates to the resource
> management enabled attribute.  With RM disabled, option 1 is a valid
> way to handle the issue.  With RM enabled, I would expect the provider
> to implement something closer to option 2.
> 
> I don't quite grok this answer: 2a and 2b could happen together, but I
> kinda considered 2c to be a different option (i.e., I specifically
> didn't mention timeout in 2a or 2b).

I was assuming that all of your 2_ options were part of a single solution, with 2c indicating that reliability protocols eventually give up