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> > 1. Re: OMPI devel] RoCE plus QDR IB tunable parameters
> > (George Bosilca)
> >2. Re: OM
e parameters
> (George Bosilca)
>2. Re: OMPI devel] RoCE plus QDR IB tunable parameters
> (Howard Pritchard)
>
>
> ------
>
> Message: 1
> Date: Tue, 10 Feb 2015 20:41:30 -0500
> From:
HI George,
I'd say commit cf377db82 explains the vanishing of the bandwidth metric as
well as the mis-labeling of the latency metric.
Howard
2015-02-10 18:41 GMT-07:00 George Bosilca :
> Somehow one of the most basic information about the capabilities of the
> BTLs (bandwidth) disappeared from
Somehow one of the most basic information about the capabilities of the
BTLs (bandwidth) disappeared from the MCA parameters and the one left
(latency) was mislabeled. This mishap not only prevented the communication
engine from correctly ordering the BTL for small messages (the latency
bound part)
Gilles,
I tried running with btl_openib_cpc_include rdmacm and saw no change.
Let's simplify the problem by forgetting about the channel bonding.
If I just do an aggregate test of 16 cores on one machine talking to 16 on
a second machine without any settings changed from the default in
Dave,
These settings tell ompi to use native infiniband on the ib qdr port and
tcpo/ip on the other port.
From the faq, roce is implemented in the openib btl
http://www.open-mpi.org/faq/?category=openfabrics#ompi-over-roce
Did you use
--mca btl_openib_cpc_include rdmacm
in your first tests ?
