Bill and Harm, i figured i woud post this here instead of a private email so as to get some opinions and input from others.
I am a bit confused with the logic behind the gpu testing and want to make sure i understand how this is working and make sure i dont have any problems with my machine.
I just wiped out my 8 core, 20GB ram, SSD, gtx 460/2GB, machine and put a fresh win7/64 on it with cs5 and nothing else.
i am planning on doing various tests with the SSD, then SATA Raid, then my 4gbit fibrechannel in combinations.
My concern is over the gpu acceleration and timeline rendering. My basis for wanting these gfx cards with cs5 is on the PPBM results showing all kinds of double digit speed gains with MPE enabled.
I have 8 of these machines and need to upgrade them all so i am concerned to make sure what i am doing and what i am getting for it.
my first obvious question for everyone else is when you load the benchmark in what do you see on the timeline? i have all yellow except for two small red lines near the end of each section where the curtain and cube effects are at.
Now when i hit the spacebar to play the timeline at starts out ok but then hits the 8 second mark into it and chokes out the rest of the way skipping frames and drawing maybe 3-5 frames per second until it gets through the rest. Is this what happens for everyone else or does your system play the yellow area smoothly?
Is this a by-product of my manually putting the 460 into my supported cards file and premiere not properly calculating what the gpu can and cannot accelerate?
Now as for the benchmark testing itself when i hit enter it simply renders out those 2 effects that have the red line then starts playing the same choked out skippy video as before.
So if this speed is calculated and then the speed of my cpu rendering the entire timeline then how is this an effective comparison? if i simply remove those two effects at the end then i still have that big complicated timeline and yet if i hit enter it just plays choppy video instantly and nothing is rendered, so compared to my cpu thats a bazillion times faster but i dont get anything out of it as the video doesnt actually play with the gpu.
My real concern and need is flat out rendering speed for encoding. i had high hopes that getting a video card with hundreds of cores on it would magically render out mpeg 2 files 10-20x faster then my cpus can.
i saved out a pic of my cores when i am playing the timeline, you can see they are not being maxxed out.
Before i wiped my system out i tried the trial version of the mainconcept gpu encoder and it went slower with the gpu than it did with my cpus. Their email response to me was that gpu rendering is more of an advantage against slow cpu systems. and my cpu's were too fast in comparison. I find this hard to believe in that my system is several years old now. thier own performance comparison charts show a tremendous speed increase over modern I7 processors.
On a side note - DONT INSTALL MAINCONCEPT TRIAL ENCODER!- it hijaacked my mpeg encoding/decoding even when i wasnt using it and it was watermarking all my stuff in premiere with its logo!
I also have been using a program called canopus procoder which does great encoding with multi cores, a standard dv to mpeg2 encode on my system maxxes all 8 cores and renders about 14x faster than realtime.
I hoped a cuda card could increase this speed for me and render faster then that directly out of premiere. I would think during rendering your cpu's and gpu's would work together at 100% usage to go as fast as possible. i would like to see 20-30x realtime speed for mpeg2 encoding in my situation.
Thanks and i look forward to any input or help or even a simple "click on this and yoru problem is solved"