A question on new 1.07 Pro dual core setting

[Rizlaw]

JDobb's lists the following new feature in version 1.07:

- Added code to enable multiple encoder instances. The feature is available under the "Settings" menu. On multiple core computers and some very fast single core computers using hyperthreading this will take advantage of unused processor time.

I am running version 1.07 on a system with XP PRO SP2, AMD FX-60 with 2 GB of Corsair XMS PRO memory. I have made the change in the "Settings" menu to implement "Multiple Encoder Processes" for dual core support.

When I encoded a film with CCE Basic 2.70.01.9, I expected to see two instances of the CCE Basic encoder pop-up, but I only saw one. CCE was showing "Speed" readings in the range of 4.25 to 5.0+.

So my questions are: (1) should I be seeing one or two instances of the CCE Basic encoder? (2) Do I need to do anything else as far as settings are concerned to take advantange of the new feature? If so, what?

P.S. Another question: when I tried to stop the CCE Basic encoder, I couldn't. I tried to kill the process with Task Manager, but that didn't work either. Can someone tell me how to stop CCE Basic so that I can terminate DVD-RB when I need to.

Thanks.

[archaeo]

You can't run two instances of CCE on the same system. It just won't work. Dual support is only for HC, Quenc, and I believe one other...

[jptheripper]

hmm, i wonder if autoqmapenc can run with 2 instances? of course a change would need to be made as it uses the cce interface

[Carpo]

not too sure if you can run two AQE's, althought you can tell it how many threads to use

# Beta Version 0.32.0.3

* Display version info in the log
* Create New VAF parameter taken into account now
* Multithread enabled version (Highly experimental) - Posix Threads used.
o Parameter : threads=## , ## being the number of threads.


more details can be found on AQE's site

[jdobbs]

I've tried to run two instances of CCE -- and it just won't do it. I'm also not sure whether there would be any improvement in speed, as it has been no proof of concept tests. CCE demands a lot of memory and almost always uses 100% of the processor time.

[jptheripper]

@carpo . thanx

@jdobbs - on my p4 ee 3.73 HT cpu usage hits about 69% on each using cce 2.5 (least that is what the graph says, and is currently using 470mb ram

[jdobbs]

Good to know. If I can figure out a way to make CCE run in more than one instance I'll enable it.

[TotalHavoc]

I wish I could get CCE 2.67 to run at 100%. On my new AMD x2 it uses about 66% on each core for a speed of 6.1 or so. On my old P4@3.5 it rand at 100% for a speed of 3.5

[Bounty1342]

you can't run more than one instance of cce since old version, before they implement smtp on it.
Chek the historie if you want more precissions.

I have try to rename the executable to launch 2, but the programm not launch ...

Sorry for my english.

[Boulder]

Running two instances of CCE wouldn't be of much use. The program itself supports multithreading so it would actually utilize twice as many threads. They would then compete for the same CPU resources (the SSE/SSE2 registers) which won't do any good.

EDIT: I think ProCoder 2 supports multithreading as well.

[jdobbs]

If you have unused processor time during encoding -- it is likely that running two instances will increase speed. The tests using ProCoder with DualDVDRB showed significant improvements where that was the case.

[Carpo]

on my p4 3.4 with 2GB of ram cpu hits about 80% and ram hits near 800meg at times so i doubt that running cce twice would have little gain for me

[jdobbs]

I think you're right most of the time... but it has to be tested to see what impact it would have. I'd made the same assumption when I first thought about doing this a few months ago -- and dismissed the idea bacause I thought it wouldn't make much difference . Then when I saw the numbers from folks using DualDVDRB I had to change my thinking.

As for me... I purposely always use what I think is an "average" computer so I can program DVD-RB for the most likely audience. Right now that's a Athlon XP 3200+. So I personally don't get any speed increases at all with multiple instances. People with a dual core processor, however, might see huge increases.

[l8nights]

P.S. Another question: when I tried to stop the CCE Basic encoder, I couldn't. I tried to kill the process with Task Manager, but that didn't work either. Can someone tell me how to stop CCE Basic so that I can terminate DVD-RB when I need to.

I dont' know for sure w/ basic but abort through rebuilder interface works for me & sp this is effectively like a pause button if you are in two/three click as you can continue where you left off l8ter

[jdobbs]

It works with CCE Basic too. I do the majority of my encodes with CCE Basic v2.70.1.8.

It won't stop the process for CCE v2.50, though... I don't know why -- maybe the ECLCCE executable?