[yt-users] Problem when run yt dev in parallel on Blue Waters

[Pengfei Chen]

Hi Nathan,

Thank you very much for your reply! When I run that test script in parallel
with 16 cores, I get 16 0s. Any suggestions to fix this?

Thanks,
Pengfei



On Wed, Nov 18, 2015 at 3:40 PM, Nathan Goldbaum <nathan12343 at gmail.com>
wrote:

> Hi Pengfei,
>
> Can you try to run the following test script in parallel? This will
> determine if the issue is on the yt side of things or the mpi4py side of
> things:
>
>     from mpi4py import MPI
>
>     print(MPI.COMM_WORLD.rank)
>
> -Nathan
>
> On Wed, Nov 18, 2015 at 5:36 PM, Pengfei Chen <madcpf at gmail.com> wrote:
>
>> Hi all,
>>
>> I have trouble running yt in parallel on Blue Waters. I installed yt
>> using miniconda, the version of yt is
>>
>> ~/miniconda/lib $yt version
>> yt module located at:
>>
>> /u/sciteam/madcpf/miniconda/lib/python2.7/site-packages/yt-3.3.dev0-py2.7-linux-x86_64.egg
>> The current version and changeset for the code is:
>> ---
>> Version = 3.3-dev
>> Changeset = 90f900be7a36+ yt
>>
>> Then with miniconda/bin in PATH I installed mpi4py-2.0.0. But when I
>> tried to make the following simple output in parallel, I get:
>>
>> import yt
>> yt.enable_parallelism()
>> from yt.utilities.parallel_tools.parallel_analysis_interface import\
>>  parallel_objects, communication_system
>>
>> comm = communication_system.communicators[-1]
>> print comm.rank, comm.size
>>
>> 0 1
>> 0 1
>> 0 1
>> 0 1
>> 0 1
>> 0 1
>> 0 1
>> 0 1
>> ...
>>
>> When I run a similar code but with yt-2.x also on Blue Waters, I get what
>> I expect:
>>
>> 7 16
>> 15 16
>> 6 16
>> 9 16
>> 11 16
>> 8 16
>> 0 16
>> 4 16
>> ...
>>
>> I'm confused about it. Could anyone give me some suggestions please?
>>
>> Thanks,
>> Pengfei
>>
>> _______________________________________________
>> yt-users mailing list
>> yt-users at lists.spacepope.org
>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>
>>
>
> _______________________________________________
> yt-users mailing list
> yt-users at lists.spacepope.org
> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.spacepope.org/pipermail/yt-users-spacepope.org/attachments/20151119/b39c4f39/attachment.html>