[yt-users] parallel volume render returns blank image
Sam Skillman
samskillman at gmail.com
Tue Nov 1 09:42:22 PDT 2011
Hi Britton,
Would you mind pasting your script and mpirun command line? Processor 0
should be the only processor that has the entire image at the end. If
anything processor 1 would have half an image, which is why this confuses
me.
Thanks,
Sam
On Tue, Nov 1, 2011 at 10:07 AM, Britton Smith <brittonsmith at gmail.com>wrote:
> Hi again,
>
> Just an update on this. I was incorrect when I stated that the image
> arrays were all zeros in parallel. What actually seems to be the case is
> that with two processors, processor 0 which does the image writing, only
> has a fraction of the total image, which to me looked like all zeros.
> Processor 1 seems to have the entire image, though. It has the same number
> of non-zero cells as the image array does in serial mode.
>
> I still don't know what's happening, but I'm looking at it.
>
> Britton
>
>
> On Tue, Nov 1, 2011 at 11:55 AM, Britton Smith <brittonsmith at gmail.com>wrote:
>
>> Hi,
>>
>> I'm doing a pretty simple volume render that uses the Camera.snapshot
>> function. In serial, everything seems to be working fine, but when I run
>> in parallel, the image comes out completely blank. I have gone into the
>> snapshot routine and verified that the image array is all zeros for every
>> processor after the loop:
>> for brick in self.volume.traverse(self.back_center, self.front_center,
>> image):
>>
>> This is in the tip of the development version of yt.
>>
>> Does anyone know what the issue is here?
>>
>> Thanks,
>> Britton
>>
>
>
> _______________________________________________
> 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/20111101/70e6f107/attachment.html>
More information about the yt-users
mailing list