He's building and running on a single server (leo).  From the configure output, 
all the numa libs and headers are available on this leo server.


> On Oct 30, 2015, at 11:09 AM, Ralph Castain <r...@open-mpi.org> wrote:
> 
> I think Dave has probably hit the problem - that node may well not have a 
> “numa” object. You also might check that node “leo” has libnuma on it
> 
> 
>> On Oct 30, 2015, at 6:48 AM, Dave Love <d.l...@liverpool.ac.uk> wrote:
>> 
>> Fabian Wein <fabian.w...@fau.de> writes:
>> 
>>> Is this a valid test?
>>> 
>>> 
>>> /opt/openmpi-1.10.0-gcc/bin/mpiexec -n 4 hostname
>>> leo
>>> leo
>>> leo
>>> leo
>> 
>> So, unless you turned off the default binding -- to socket? check the
>> mpirun man page -- it worked, but the "numa" level failed.  I don't know
>> if that level has to exist, and there have been bugs in that area
>> before.  Running lstopo might be useful, and checking that you're
>> picking up the right hwloc dynamic library.
>> 
>> What happens if you try to bind to sockets, assuming you don't want to
>> bind to cores?  [I don't understand why the default isn't to cores when
>> you have only one process per core.]
>> 
>>> /opt/openmpi-1.10.0-gcc/bin/mpiexec -bind-to numa -n 4 hostname
>>> --------------------------------------------------------------------------
>>> A request was made to bind a process, but at least one node does NOT
>>> support binding processes to cpus.
>>> 
>>> Node:  leo
>>> This usually is due to not having libnumactl and libnumactl-devel
>>> installed on the node.
>> 
>> By the way, you can check the binding done, independently to what
>> openmpi says, with
>> mpirun ... hwloc-ps
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Jeff Squyres
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