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Subject: Re: [OMPI devel] openib max_cqe
From: TERRY DONTJE (terry.dontje_at_[hidden])
Date: 2012-07-06 06:21:28


On 7/5/2012 5:47 PM, Shamis, Pavel wrote:
>>> I mentioned on the call that for Mellanox devices (+OFA verbs) this resource is really cheap. Do you run mellanox hca + OFA verbs ?
>> (I'll reply because I know Terry is offline for the rest of the day)
>>
>> Yes, he does.
> I asked because SUN used to have own verbs driver.
I noticed this on a Solaris machine, I am not sure I have the same set
up for Linux but I'll look and see if I can reproduce the same issue on
Linux.

--td
>> The heart of the question: is it incorrect to assume that we'll consume (num CQE * CQE size) registered memory for each QP opened?
> QP or CQ ? I think you don't want to assume anything there. Verbs (user and kernel) do their own magic there.
> I think Mellanox should address this question.
>
> Regards,
> Pasha
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-- 
Terry D. Dontje | Principal Software Engineer
Developer Tools Engineering | +1.781.442.2631
Oracle *- Performance Technologies*
95 Network Drive, Burlington, MA 01803
Email terry.dontje_at_[hidden] <mailto:terry.dontje_at_[hidden]>