XviD and Multi-Processor Systems (SMP)

Buzz Lightyear · 5th January 2005, 09:49

I searched the forum, but couldn't find any recent threads on the SMP capabilities of XviD.
So here I go:
Does XviD support Multiprocessor Systems? (It doesn't look like it, right now...)
If not, is it planned for future releases?

(Btw, I'm not talking about HT. My brand-new Dual Xeon needs something to do, until I finished my FE models...)

708145 · 5th January 2005, 14:34

Well, I'm currently developing ELDER.
A parallEL encoDER for XviD. Look here for current status.

edit 2005-07-08: ELDERchap V1.0RC1 released. http://www.iti.uni-stuttgart.de/~ber...p1.0RC1.tar.gz

bis besser,
T0B1A5

mikeX · 5th January 2005, 20:34

AFAIK XviD does not take advantage of SMP (or HT) systems. The only benefit you can have from what I've heard so far, is that you can leave decoding/filtering etc for one CPU and encoding for the other...
The only way you can split encoding on more than one CPU is the way TOB1A5 mentioned, which is btw very similar to transcode's 'cluster mode' (I don't know how that one handles scene changes/chunk borders however)

Buzz Lightyear · 7th January 2005, 17:32

Alright. Thanks for the answers!
I guess, SMP for XviD isn't really trivial....

Buzz Lightyear · 28th January 2005, 13:28

Yesterday I discovered something strange.
I was encoding a movie with Koepis XviD-1.0.3-20122004 build and to my great surprise both (!) CPUs were used! Both at 100%! (Vdubmod had 100% CPU usage)
Is it possible that XviD supports SMP in the end?
I don't undestand that. I like it, but I don't understand it....

708145 · 28th January 2005, 14:49

Well, unfortunately SMP code does not materialize randomly and by itself

So my guess is that avisynth used one CPU and xvid the other. If you didn't use avisynth (or other filters for that matter) then I don't know

bis besser,
Tobias

BigDid · 28th January 2005, 16:42

Quote:

Originally posted by 708145
Well, I'm currently developing ELDER.
A parallEL encoDER for XviD. Look here for current status.

bis besser,
T0B1A5

Hello 708145,

Link down ?

Did

708145 · 28th January 2005, 17:48

Quote:

Originally posted by BigDid
Hello 708145,

Link down ?

Did

The server was quite busy. It's resolved now.

bis besser,
Tobias

Buzz Lightyear · 31st January 2005, 14:33

Quote:

Originally posted by 708145
Well, unfortunately SMP code does not materialize randomly and by itself

Well... that's too bad!

Quote:

So my guess is that avisynth used one CPU and xvid the other. If you didn't use avisynth (or other filters for that matter) then I don't know

My mistake. I should have written that I use GordianKnot to setup my encodes. So that means that you're probably right with XviD + Avysynth. I'll check that...

EDIT1:
...looks like you're right. I've set up a new encode with different setting, and now CPU1 is at 100% and CPU2 is at 40%. So my previous results (both CPUs at ~100%) was purely coincidental.

EDIT2:
What the h***? At around 85% of pass 1, suddenly CPU2 jumped to ~100%, too! And for pass 2, both CPUs are constantly at ~80-100%! I don't understand that....

tdsfan · 2nd April 2005, 19:51

How far along are you with ELDER? Is there anything to download?

tdsfan · 3rd April 2005, 02:50

I just found this page, it mentions you can compile xvid for smp, is this true??

http://www.discdude.net/xvid/compile.html

708145 · 11th April 2005, 16:24

Quote:

Originally posted by tdsfan
How far along are you with ELDER? Is there anything to download?

Well, I've been in holidays for 5 weeks and just returned yesterday. Lots of work was piling up here, so => It will take some time till I can have a look at it.

Just bug me often enough, it helps for motivation and "finding" time.

bis besser,
T0B1A5

Sharktooth · 11th April 2005, 17:04

im bugging you...

Ice =A= · 13th April 2005, 03:36

I'm bugging you, too...

@Buzz Lightyear:
Any new insights on your case?

Shinigami-Sama · 13th April 2005, 04:22

I'll ginf hte heard I guess
BAAAAAA~
I wish I knew how to help I realy do..

708145 · 22nd April 2005, 17:51

Just a small question for all the ELDER-lovers in here:

Which platforms do you use? I guess mainly Win32(maybe HT or SMP).
If so, I'll implement the Win32 version first.
*hint* I have some free time tomorrow. *hint*

bis besser,
Tobias

Sharktooth · 22nd April 2005, 19:24

Win32, linux and BSD... but mainly Win32.

Shinigami-Sama · 22nd April 2005, 20:01

win 32
lunix when I get a second pc maybe

Buzz Lightyear · 12th May 2005, 17:55

@Ice =A=:
I haven't had time to look closer into that, but I think that 708145 is right and that XviD uses one CPU and Avisynth the other.
That's not "real SMP" but I don't care. There are 2 processes (XviD and Avisynth) and 2 CPUs and it's damn fast, so why bother?

@708145:
auch ein www.nichtlustig.de Fan, wie ich sehe

movmasty · 16th May 2005, 16:49

Quote:

Originally posted by Buzz Lightyear
EDIT1:
...looks like you're right. I've set up a new encode with different setting, and now CPU1 is at 100% and CPU2 is at 40%. So my previous results (both CPUs at ~100%) was purely coincidental.

EDIT2:
What the h***? At around 85% of pass 1, suddenly CPU2 jumped to ~100%, too! And for pass 2, both CPUs are constantly at ~80-100%! I don't understand that....

Tell us about frame rate please...

5th January 2005, 09:49	#1 \| Link
Buzz Lightyear to infinity... Join Date: Dec 2001 Location: deep space Posts: 48	XviD and Multi-Processor Systems (SMP) I searched the forum, but couldn't find any recent threads on the SMP capabilities of XviD. So here I go: Does XviD support Multiprocessor Systems? (It doesn't look like it, right now...) If not, is it planned for future releases? (Btw, I'm not talking about HT. My brand-new Dual Xeon needs something to do, until I finished my FE models...)

5th January 2005, 14:34	#2 \| Link
708145 Professional Lemming Join Date: Dec 2003 Location: Stuttgart, Germany Posts: 357	Well, I'm currently developing ELDER. A parallEL encoDER for XviD. Look here for current status. edit 2005-07-08: ELDERchap V1.0RC1 released. http://www.iti.uni-stuttgart.de/~ber...p1.0RC1.tar.gz bis besser, T0B1A5 __________________ projects page: ELDER, SmoothD, etc. Last edited by 708145; 8th July 2005 at 13:54. Reason: ELDERchap V1.0RC1 released

5th January 2005, 20:34	#3 \| Link
mikeX yakisoooobaaa!! Join Date: Sep 2003 Location: Greece Posts: 329	AFAIK XviD does not take advantage of SMP (or HT) systems. The only benefit you can have from what I've heard so far, is that you can leave decoding/filtering etc for one CPU and encoding for the other... The only way you can split encoding on more than one CPU is the way TOB1A5 mentioned, which is btw very similar to transcode's 'cluster mode' (I don't know how that one handles scene changes/chunk borders however) __________________ How to secure your Windows box in 3 simple steps Debian GNU/Linux x86_64 sid

28th January 2005, 14:49	#6 \| Link
708145 Professional Lemming Join Date: Dec 2003 Location: Stuttgart, Germany Posts: 357	Well, unfortunately SMP code does not materialize randomly and by itself So my guess is that avisynth used one CPU and xvid the other. If you didn't use avisynth (or other filters for that matter) then I don't know bis besser, Tobias __________________ projects page: ELDER, SmoothD, etc.

11th April 2005, 17:04	#13 \| Link
Sharktooth Mr. Sandman Join Date: Sep 2003 Location: Haddonfield, IL Posts: 11,245	im bugging you... __________________ MPEG-4 ASP Custom Matrices: EQM V1(old), EQM AutoGK Sharpmatrix (aka EQM V2), EQM V3HR (updated 01/10/2004), EQM V3LR, EQM V3ULR (updated 04/02/2005), EQM V3UHR (updated 17/12/2004) and EQM V3EHR (updated 05/10/2004) Info about my ASP matrices. MPEG-4 AVC Custom Matrices: EQM AVC-HR Info about my AVC matrices My x264 builds. Mooo!!!

7th January 2005, 17:32	#4 \| Link
Buzz Lightyear to infinity... Join Date: Dec 2001 Location: deep space Posts: 48	Alright. Thanks for the answers! I guess, SMP for XviD isn't really trivial....

28th January 2005, 13:28	#5 \| Link
Buzz Lightyear to infinity... Join Date: Dec 2001 Location: deep space Posts: 48	Yesterday I discovered something strange. I was encoding a movie with Koepis XviD-1.0.3-20122004 build and to my great surprise both (!) CPUs were used! Both at 100%! (Vdubmod had 100% CPU usage) Is it possible that XviD supports SMP in the end? I don't undestand that. I like it, but I don't understand it....

2nd April 2005, 19:51	#10 \| Link
tdsfan Registered User Join Date: Mar 2005 Posts: 7	How far along are you with ELDER? Is there anything to download?

3rd April 2005, 02:50	#11 \| Link
tdsfan Registered User Join Date: Mar 2005 Posts: 7	I just found this page, it mentions you can compile xvid for smp, is this true?? http://www.discdude.net/xvid/compile.html

13th April 2005, 03:36	#14 \| Link
Ice =A= Registered User Join Date: Jan 2004 Location: Heidelberg, Germany Posts: 150	I'm bugging you, too... @Buzz Lightyear: Any new insights on your case?

22nd April 2005, 17:51	#16 \| Link
708145 Professional Lemming Join Date: Dec 2003 Location: Stuttgart, Germany Posts: 357	Just a small question for all the ELDER-lovers in here: Which platforms do you use? I guess mainly Win32(maybe HT or SMP). If so, I'll implement the Win32 version first. hint I have some free time tomorrow. hint bis besser, Tobias __________________ projects page: ELDER, SmoothD, etc.

22nd April 2005, 19:24	#17 \| Link
Sharktooth Mr. Sandman Join Date: Sep 2003 Location: Haddonfield, IL Posts: 11,245	Win32, linux and BSD... but mainly Win32. __________________ MPEG-4 ASP Custom Matrices: EQM V1(old), EQM AutoGK Sharpmatrix (aka EQM V2), EQM V3HR (updated 01/10/2004), EQM V3LR, EQM V3ULR (updated 04/02/2005), EQM V3UHR (updated 17/12/2004) and EQM V3EHR (updated 05/10/2004) Info about my ASP matrices. MPEG-4 AVC Custom Matrices: EQM AVC-HR Info about my AVC matrices My x264 builds. Mooo!!!

12th May 2005, 17:55	#19 \| Link
Buzz Lightyear to infinity... Join Date: Dec 2001 Location: deep space Posts: 48	@Ice =A=: I haven't had time to look closer into that, but I think that 708145 is right and that XviD uses one CPU and Avisynth the other. That's not "real SMP" but I don't care. There are 2 processes (XviD and Avisynth) and 2 CPUs and it's damn fast, so why bother? @708145: auch ein www.nichtlustig.de Fan, wie ich sehe

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