[ofa-general] Re: [PATCH draft, untested] ehca srq emulation (for IPoIB CM)

Shirley Ma xma at us.ibm.com
Mon Jun 18 08:41:08 PDT 2007





Hello Michael,

>> IPoIB CM support, with or without SRQ, is less
>> scalable than IPoIB UD mode,

>I believe this is incorrect: datagram mode has AH per destination,
>connected mode has a QP per destination, so with SRQ, I see no
>inherent lack of scalability with connected as compared to datagram mode.

How many nodes of cluster have you tested for IPoIB-CM mode? What kind of
tests? Do you have any data to share?

Thanks
Shirley Ma
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