I have a single machine w 96 cores. It runs CentOS7 and is not connected to
any network as it needs to isolated for security.
I attempted the standard install process and upon attempting to run ./mpirun I
find the error message
"No network interfaces were found for out-of-band communications
Thanks for reporting the issue.
First, you can workaround the issue by using:
mpirun --mca oob tcp ...
This uses a different out-of-band plugin (TCP) instead of verbs unreliable
datagrams.
Second, I just filed a fix for our current release branches (v2.1.x, v3.0.x,
and v3.1.x):
https
Are you trying to run UPC++ over MPI in the cloud?
Jeff
On Tue, Sep 11, 2018 at 10:46 AM, Benjamin Brock
wrote:
> Thanks for your response.
>
> One question: why would RoCE still requiring host processing of every
> packet? I thought the point was that some nice server Ethernet NICs can
> handl
Thanks for your response.
One question: why would RoCE still requiring host processing of every
packet? I thought the point was that some nice server Ethernet NICs can
handle RDMA requests directly? Or am I misunderstanding RoCE/how Open
MPI's RoCE transport?
Ben
Gilles: Can you submit a PR to fix these 2 places?
Thanks!
> On Sep 11, 2018, at 9:10 AM, emre brookes wrote:
>
> Gilles Gouaillardet wrote:
>> It seems I got it wrong :-(
> Ah, you've joined the rest of us :)
>>
>> Can you please give the attached patch a try ?
>>
> Working with a git clone
Gilles Gouaillardet wrote:
It seems I got it wrong :-(
Ah, you've joined the rest of us :)
Can you please give the attached patch a try ?
Working with a git clone of 3.1.x, patch applied
$ /src/ompi-3.1.x/bin/mpicxx test.cpp
$ /src/ompi-3.1.x/bin/mpirun a.out > stdout
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