MAME "Software SLI"

[LB11]

Aaron Giles

Faster, Soul Master

I like to call it â??software SLIâ?:

>set OSDPROCESSORS=1

>mamepm blitz -nothrottle -video none -nosound -str 90

Average speed: 47.37% (89 seconds)

>v64mame blitz -nothrottle -video none -nosound -str 90

Average speed: 59.33% (89 seconds)

>set OSDPROCESSORS=2

>mamepm blitz -nothrottle -video none -nosound -str 90

Average speed: 63.88% (89 seconds)

>v64mame blitz -nothrottle -video none -nosound -str 90

Average speed: 79.31% (89 seconds)

In terms of actual performance on my 2.4GHz Core 2 laptop (64-bit version for obvious reasons), Wayne Gretzkyâ??s 3D Hockey now runs 100% except for the occasional zooms. The Carnevil clown is close to 100% as well. San Francisco Rush gets about 40-50% in-game, and Gauntlet Legends runs at about 50% speed. Rather playable, in fact.

Taken from here: http://www.vg-network.com/2007/10/06/mame-...october-6-2007/

Does anyone know what they are talking about? I know it is using both cores of the CPU, but how does he set it up that way?

[Nologic]

I'm guessing this setting

set OSDPROCESSORS=2

[LB11]

Yes, but where do I put that setting?

[Nologic]

I would imagine it goes in the mame.ini file if you have 120u1...which I don't.

I'm guessing others here don't know ether as they haven't said boo...

[Brian Hoffman]

I would imagine it goes in the mame.ini file if you have 120u1...which I don't.

I'm guessing others here don't know ether as they haven't said boo...

Im 90% sure you edit the source and compile it..

probably in mame.h or osdcore.h

At least that what I read... I havent tried it as I dont use a 64bit version of windows.

Which I believe you need to have dualcore/64bit cpu and 64bit windows and a compiled mame optimized for 64 and of course the osdprocessors set correctly to take full advantage.

[LB11]

Thanks for the help guys.

Brian: you may be correct on the 64bit OS, but it looks to me like he is showing performance nubers from 32bit version. Mamepm and then 64mame for 64bit. Does anyone know what mamepm is? Just one of his versions I suppose.

[Brian Hoffman]

Thanks for the help guys.

Brian: you may be correct on the 64bit OS, but it looks to me like he is showing performance nubers from 32bit version. Mamepm and then 64mame for 64bit. Does anyone know what mamepm is? Just one of his versions I suppose.

MAMEPM IS THE EXE YOU GET WHEN YOU USE THE -PM OPTION ITS FOR...opps caps lock was on...... anyways its for pentium mobile/ dualcore processors...

It has nothing to do with 64bit architechure...

[headkaze]

set OSDPROCESSORS=2

SET is just a DOS program for setting environment variables Eg. SET PATH=%PATH%;C:\MYPATH. So my guess is you put it into a batch file..

@ECHO OFF
SET OSDPROCESSORS=2
mamep4.exe ...

[Brian Hoffman]

SET is just a DOS program for setting environment variables Eg. SET PATH=%PATH%;C:\MYPATH. So my guess is you put it into a batch file..

@ECHO OFF
SET OSDPROCESSORS=2
mamep4.exe ...

You are right... that works

[LB11]

Ok, so you would need the mamepm version to run this then since its for mobile dual cores?

[alexdog69]

the pm is a pentium-M architecture optimized build (which lends itself better to core 2 duo's than the i686 build).

and i dont think that you need anything but 120[u1?] to use this

afaik the best results are pm + 64bit

this thread may also be interesting

http://forum.arcadecontrols.com/index.php?topic=72776.0;all