Dual Processors in TMPGEnc

[poonaner]

This is a hypathetical question.

If one were to have two processers that ran at the same speed(dual processers), I would be able to use both of them to encode a movie.

Correct?
There is an option somewhere in there that allows you to do this.

If i used two processers of the same speed to encode a movie would the encode be 2x as fast as if i hade just the one processer?

Has anyone tried thats out.

Just a question, if anyone knows that answers holla back.

[poonaner]

Anyone have a clue?
i am just curious as to getting another processer would double my encoding time?

[SLK001]

The answer is a qualified "yes", IF the program you are using is DUAL PROCESSOR aware AND your OS is also DUAL PROCESSOR capable. TMPEG and CCE are dual processor aware. W2000, XP and NT are dual processor capable.

However, if you frameserve into TMPEG and your serving program is NOT dual processor aware (most are not), then you will not pick up much speed (because the bottleneck is in the frameserving, NOT the encoding).

[poonaner]

Are there any OS's that are dual processer aware?
In the windows family?

[foobarley]

Windows 2000 Pro and Windows XP Pro (not Home) both support dual processors.

[poonaner]

THX

would happen to know how to make it run at dual processors?
or does it just go by itself when you install the second one?

[jtoops]

Here's a couple of links that you would have found if you used the search capability on this forum:

http://forum.vcdhelp.com/viewtopic.php?t=92202&highlight=dual+tmpgenc

http://forum.vcdhelp.com/viewtopic.php?t=93901&highlight=dual+tmpgenc

Also, for TMPGEnc, under options, environmental settings, cpu tab, check "use multi-thread box".

John

[poonaner]

Ok thx

I did in fact search for "Dual Processer" and found nothing.

[Micro]

Windows NT4, Windows2000, and Windows XP Pro all support dual processors.

All of theses OS's will spread the running threads over both cpu's without any required input from the user or the application.
However, this is not the same as or as efficient as applications that are designed or optimized for dual (or multiple cpu's), it simply allows you it truely multi-task (things like watching a video while encoding another in the background).

Applications that ARE designed for (or are enabled to use) dual cpu's will run that application and it's processes on both cpu's simultaneously, greatly speeding up the app.
It is very rare to expect a 2x increase in application speed, 1.25- 1.75x is much more commonplace.

As jtoops said, TMPGEnc and TMPGEnc Plus can be enabled to use dual processors under the Environmental Settings/Cpu tab.

On very simple encodes (CBR, avi to MPG2, no size change) using dual P3s @1100, the encoding time is cut in almost exactly half for me.
On more demanding encodes (VBR multi-pass, filters, changing size, etc, etc.) I still see about a 30- 40% reduction in time over a single cpu.
(Quality is constant and equal, with either single or dual cpu's).

It's basicly a matter of what your time is worth and what else you use the machine for, as to whether dual cpu's are justifiable for you.

Hope that helps.

[Executioner]

I have a SMP setup - 2 PIII-550MHz cpu's with 328 megs of ram running Win2k. I have this option enabled in TMPGenc. I've noticed about a 20% increase in encoding time. For example, I just finished encoding Black Hawk Down as a SVCD using TMPGenc. It took about 20 hours to do the SVCD convertion using 4 seperate MPEG files. I like quality, so I had the "motion search precision" at "highest quality very slow".

Normally if I encode a VCD using a 2 hour movie, the encoding time is probably around 7 hours with the higest quality very slow setting.

[thecalip]

dual processors won't give u 2x the speed as a single processor.

you should be very happy if u get 40% increase.

[Mirror_Image]

I did in fact search for "Dual Processer" and found nothing.

That is probably because of the spelling error:

"Processor" is correct.

"Processer" is incorrect.