I'm sticking with 10.6.1 still, in that case. Maybe I will upgrade
the MacPro (since I mostly use that for music), and leave the laptop
on 10.6.1.
a|x
On 31 Mar 2010, at 15:46, George Toledo wrote:
The GM, very first build, had OpenCL working more reliably for me
(and maybe 10.6.1 as well?).
All mesh filters worked. Now noise and bend don't work.
The n-body worked.
The wind tunnel example worked.
The mesh normals patch had it's input published, so it also worked.
None of those work currently at my last check.
I believe that OpenCL could be made to run on the CPU via the QC
Editor app preferences, right from the start. So, overall, I'm not
seeing improvement in any way. If the iterator is performing
better, that would be interesting.
I see this as an "even steven" release from 10.6.2, no move
forward, no move backwards. QC3 worked more reliably, and this
version of QC4 can't be made to work as well as the first release
of it.
Best regards,
George Toledo
On Tue, Mar 30, 2010 at 6:32 PM, Steven Watkins
<[email protected]> wrote:
There is a danger of being slightly misleading by talking in such
broad terms about Mesh Filters and OpenCL. Im finding it to be a
lot better with some of the worst bus in these areas fixed. There
may be a few specific mesh filter examples that dont work, I havent
had much time to test, but if so that could possibly be down to the
openCL code inside the patches needing to be updated to work since
they fixe the underlying QC-OpenCL bugs. Im not well versed enough
in writing OpenCL stuff to be able to tell. Either way I think we
have to be very specific when talking about OpenCL bugs in order to
create an accurate impression of 10.6.3.
Anyway apart from whatever the remaining mesh filter problems turn
out to be, this is, from my experience so far, the best QC OpenCL
we have had with Snow Leopard. We get the fix that 10.6.2 first
offered for the bug that prevented QC OpenCL from falling back to
CPU if no suitable GPU found, without having to suffer all of the
new problems 10.6.2 introduced. I doubt its perfect yet but it
marks the end of a sorry chapter where I pretty much abandoned QC
whilst waiting to see if 10.6.3 undid some of the damage, and Im
pleased to say it has and I look forward to reality moving further
in the direction of our original expectations for QC in Snow
Leopard. If outstanding snow leopard iterator performance issues
can be fixed by 10.6.4 then I think we are just about there?
Cheers
Steve
On 30 Mar 2010, at 14:04, George Toledo wrote:
Mesh filters/OpenCL is still broken, and other bugs that I'm aware
of seem to still be there.
Haven't done a valid iterator test yet (like Alex Drinkwater's old
iterator test). The iterator in SL can work ok in certain
scenarios, so it's vital to do an iterator test that makes QC
evaluate more than it "should".
-George Toledo
On Tue, Mar 30, 2010 at 5:37 AM, Juan Ayala <[email protected]> wrote:
Well.. I was just about to report that all problems I had with the
framework -until now- were solved with the latest update. I
mean... the compositions with iterators are working now with
10.6.3. I'm using now QC 4.0 (103.1) Framework version 4.1
(156.13) and so far everything is working.
I can see again 60fps with all compositions affected including
some sent by other users to the list. For instance :
http://ibeatsonline.com/index.php%3Fref=project-quartz-jp-
quicktime-26_Constructivism.html
or my favorite victim the "carousel" by Memo Akten found here:
http://bit.ly/cRm2b1
BUT.... the but is... the first time I open the carousel it shows
the same same slow performance ( not the case with zugakousaku's
file) . To see it working fast I need to close and reopen the
viewer. After that all works just fine.
The console reports this:
juan
On 29 Mar 2010, at 22:45, vade wrote:
Returning to this, just upgraded to 10.6.3
Mac Book Pro 2.33 Ghz hits the first Checkers at 30fps and
iteratorTest at 2.4ish.
Seems 10.6.3 brings no Iterator fix? Is there any word on fixes
for QC ?
On Nov 4, 2009, at 2:48 PM, Christopher Wright wrote:
> <puts on asbestos suit ;)>
> I'm finding a lot of cases where iterator performance in QC4 is
dramatically worse than in QC3 (typically about half as fast).
>
> <Checkers.qtz> (this does a 50x50 grid, with half the sprites
disabled, so it's 2500/2 = 1250 sprites per frame -- MacBook can
render this at 60fps in Leopard, MacBook Pro is struggling to hit
30fps in Snow Leopard.)
>
> <iteratorTest.qtz> (this one's iteration count is cranked up
really high, but it's still ~5fps on my MacBook 1.83GHzGMA950
running 10.5.8, and only 2.2-2.5fps on my MacBook Pro 2.4GHz 8600M
GT running 10.6.x (the MacBook on Snow Leopard also hits about
2.5fps, so the same machine is half as fast in iterators).
Turning down the iteration count makes it scale up, with 10.5
always running about 2x as fast as 10.6).
>
> Is this expected? Does anyone else experience this kind of
performance? Are there cases where iterators are actually faster
(or at least as fast) on Snow Leopard? I'm only seeing a few
cases where having all consumer subpatches get disabled causes
snow leopard's iterator to skip work (unlike leopard's). Should I
file a bug for this?
>
> --
> [ christopher wright ]
> [email protected]
> http://kineme.net/
>
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