[libfabric-users] troubled by FI_SOURCE use

Hefty, Sean sean.hefty at intel.com
Thu Mar 14 08:28:01 PDT 2019

> Everything is working very nicely, but when looking at the feature matrix, I
> see that FI_SOURCE is not available with the verbs provider. That's a huge
> PITA because it means a design that work on N platforms won't work on that one
> and working around FI_SOURCE might mean that every message needs to add that
> somewhere (I didn't really think it through yet for my parcelport design).
> Is verbs FI_SOURCE likely to be implemented one day, or is it something that
> would require too much intrusive change to the provider code?

Verbs only supports MSG and DGRAM EPs.  So far, the primary target has been MSG EPs, which doesn't use FI_SOURCE.

The util providers, rxm and rxd, both support FI_SOURCE, if you're using RDM EPs.

- Sean

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