Fabian Wein <fabian.w...@fau.de> writes:
> On 10/30/2015 02:48 PM, Dave Love 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.
>
> Sorry, I don't understand. Where is hwloc dynamically linked?
In the hwloc MCA object, as with the ldd run.
> I made
> now sure I
> have only one type of libhwloc.so and libnuma.so on the system (there
> were versions
> of an older date). Is a a way to check the lib if it has the feature?
What feature?
> mpiexec only links libnuma which was actually the old version and is
> now the one I
> build from the numactl source by myself.
That must be spurious, but it's irrelevant; mpiexec doesn't do the binding.
Why not use the system version of openmpi and save this trouble?
