[yt-dev] Fwd: [yt_analysis/yt] Volume Rendering Refactor (pull request #168)

[Sam Skillman]

Hi Chris,

Hmm,  maybe Pleiades sets OMP_NUM_THREADS=1 by default.  Can you check:
echo $OMP_NUM_THREADS

If it is either unset or set to 1, could you give it a shot with export
OMP_NUM_THREADS=12?  The HT shouldn't help too much.

Best,
Sam


On Wed, Jun 13, 2012 at 8:14 PM, Christopher Moody <cemoody at ucsc.edu> wrote:

> Hi Matt,
> Yep, this is an ART dataset. I had a node running with 12 (24 with HT)
> cores at NASA Pleiades. It didn't go above 4% (=1/24) usage, which
> indicates means it likely did not  use more than one core (but I
> didn't tell it to). If there's a parallel version of the script I can
> try it out tonight, and see the scaling.
>
> chris
>
> On Wed, Jun 13, 2012 at 1:01 PM, Matthew Turk <matthewturk at gmail.com>
> wrote:
> > Chris, is this an ART dataset rendering?  I love it.  Great work.
> > And, did you note on your machine what the load went up to?  Did it
> > scale with the numebr of cores okay?
> >
> > On Wed, Jun 13, 2012 at 3:47 PM, Christopher Moody <cemoody at ucsc.edu>
> wrote:
> >> Works for me!
> >>
> >> On one core, no_ghost=True, kd-Tree took 5 seconds, ray casting 56
> >> seconds. Impressive.
> >>
> >> chris
> >>
> >> On Wed, Jun 13, 2012 at 10:45 AM, Matthew Turk <matthewturk at gmail.com>
> wrote:
> >>> Also, for what it's worth, John, Sam and I have been working on
> >>> creating a movie sequence with this in HiDef for a display project.
> >>> Once that's done we're going to be posting the movie, the original
> >>> scripts, and potentially even a screencast of how one goes about doing
> >>> a complex volume rendering.
> >>>
> >>> On Wed, Jun 13, 2012 at 12:34 PM, Sam Skillman <samskillman at gmail.com>
> wrote:
> >>>> Hi all,
> >>>>
> >>>> Here's a sample script that exposes a few of the new features such as
> >>>> opacity and the map_to_colormap function.
> >>>> http://paste.yt-project.org/show/2458/
> >>>>
> >>>> I'll see if I can get some more scripts written in a portable way.
> >>>>
> >>>> Cheers,
> >>>> Sam
> >>>>
> >>>> On Wed, Jun 13, 2012 at 10:22 AM, John ZuHone <jzuhone at gmail.com>
> wrote:
> >>>>>
> >>>>> Matt,
> >>>>>
> >>>>> I'll give it a whirl... it may take a day or two.
> >>>>>
> >>>>> John Z
> >>>>>
> >>>>> On Jun 13, 2012, at 11:12 AM, Matthew Turk wrote:
> >>>>>
> >>>>> > Sam and I chatted, and we'd like to request three people test this
> and
> >>>>> > if they all agree, we can accept it.
> >>>>> >
> >>>>> > Can three people give it a go?
> >>>>> >
> >>>>> >
> >>>>> > ---------- Forwarded message ----------
> >>>>> > From: Matthew Turk <pullrequests-noreply at bitbucket.org>
> >>>>> > Date: Wed, Jun 13, 2012 at 11:12 AM
> >>>>> > Subject: [yt_analysis/yt] Volume Rendering Refactor (pull request
> #168)
> >>>>> > To: yt at enzotools.org
> >>>>> >
> >>>>> >
> >>>>> > A new pull request has been opened by Matthew Turk.
> >>>>> >
> >>>>> > MatthewTurk/yt-refactor has changes to be pulled into
> yt_analysis/yt.
> >>>>> >
> >>>>> >
> >>>>> >
> https://bitbucket.org/yt_analysis/yt/pull-request/168/volume-rendering-refactor
> >>>>> >
> >>>>> > Title: Volume Rendering Refactor
> >>>>> >
> >>>>> > This includes all of the changes to the volume rendering system
> that
> >>>>> > were discussed here:
> >>>>> >
> >>>>> >
> >>>>> >
> http://lists.spacepope.org/pipermail/yt-dev-spacepope.org/2012-June/002039.html
> >>>>> >
> >>>>> > The main user-facing changes that could cause problems:
> >>>>> >
> >>>>> > 1) Cython 0.16 is now required.
> >>>>> > 2) Off-axis projections no longer interpolate.
> >>>>> >
> >>>>> > Changes to be pulled:
> >>>>> >
> >>>>> >
> >>>>> >
> >>>>> > --
> >>>>> > This is an issue notification from bitbucket.org.
> >>>>> > You are receiving this either because you are the participating
> >>>>> > in a pull request, or you are following it.
> >>>>> > _______________________________________________
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