[gpaw-users] Can anyone get mpi broadcast working?

[Alvaro Vazquez Mayagoitia]

To me it is working correctly (see atomiz.py attached),
mpirun -np 2 gpaw-python atomiz.py
gives me:
Atomization energy: -10.6199 eV

could you send your gpaw/customize.py?
and the output from 'python setup.py install'?

you can always revert the updates to the version which was working
correctly to you,














On Fri, Dec 16, 2011 at 2:09 PM, Alex Eftimiades
<alexeftimiades at gmail.com> wrote:
> Yes. I am using openmpi -np 4 gpaw-python test.py
>
> If this is indeed something wrong with my test script, please show me
> one that works!
> Alex
>
> On Dec 15, 2011, at 5:40 PM, Ask Hjorth Larsen wrote:
>
>> Hi
>>
>> On Thu, 15 Dec 2011, Alex Eftimiades wrote:
>>
>>> I thought it was working about a month ago. Now it does not. I have
>>> tried testing it with a simple broadcast, and the processes do not
>>> sync. There is no error, they just do not sync. I am beginning to
>>> suspect that there is something wrong in the source code since I
>>> updated between then and now. If not, please show me a working
>>> example
>>> (start to finish) that successfully broadcasts an ndarray with more
>>> than one element (it does seem to work for one element.)
>>> At the very least, the example provided in the documentation is
>>> incomplete. I tried copying and pasting it into a .py file and
>>> testing
>>> it. N and mydata need to be initialized with some values. So I
>>> initialized them with some values. Then I got the same problem as my
>>> tests--no errors, no syncing.
>>>
>>> For now, I may just have to write stuff to a file with one rank and
>>> load it with the others. However if this is a bug in the source code,
>>> I would imagine this could cause problems with parallel calculations.
>>>
>>> Thanks,
>>> Alex
>>
>> How are you running the programme?  Through gpaw-python?  Broadcast
>> is used in all parallel GPAW calculations, so the test suite should
>> make hundreds of complaints if this function is not working.
>>
>> Regards
>> Ask
>
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