hwbot multipi - multithreaded superpi (open beta)

RichBa5tard · 14th August 2006, 20:35

Hi guys,

I wrote a superpi app that calculates pi, but unlike superpi it dedects how many processor cores you have, and spreads the calculation over those available.

It works pretty well, but I need some feedback and comments on the length of calculation and stuff. It takes pretty long on a midrange processor (about 3 minutes on a 2ghz A64), but as it takes use of multiple cores, calculation on a decent dual core proc is about half. I think a 5ghz conroe may hit 30 seconds.

Some testruns i did:
Intel Pentium M 715 (1.5Ghz): 3m 18.815s
T2500 (mac osx), 2 cores: 1m 47.127s
T2500 (mac osx), 1 core: 3m 08.163s

I know some guys are going to nag because it's written in java, and you need a java vm installed, but as mac/linux user i'm tired of seeing windows-only benchmarks. This is one we can all enjoy.

If interested, you can betatest multipi v0.1. It runs on linux, mac, win32 and win64, but requires java 5 (1.5) to be installed. Just unzip and run multipi.bat or multipi.sh.

Comments and thoughts can be posted here:
http://www.hwbot.org/forums/viewtopic.php?id=196

Download:
http://www.hwbot.org/download/multipi.zip
__________________

piotke · 11th September 2006, 23:58

Download not working ?

jmke · 12th September 2006, 00:10

http://www.hwbot.org/download/multipi-0.2.zip

14th August 2006, 20:35	#1
RichBa5tard [M] Reviewer/HWBot ***** Join Date: May 2002 Posts: 3,344	hwbot multipi - multithreaded superpi (open beta) Hi guys, I wrote a superpi app that calculates pi, but unlike superpi it dedects how many processor cores you have, and spreads the calculation over those available. It works pretty well, but I need some feedback and comments on the length of calculation and stuff. It takes pretty long on a midrange processor (about 3 minutes on a 2ghz A64), but as it takes use of multiple cores, calculation on a decent dual core proc is about half. I think a 5ghz conroe may hit 30 seconds. Some testruns i did: Intel Pentium M 715 (1.5Ghz): 3m 18.815s T2500 (mac osx), 2 cores: 1m 47.127s T2500 (mac osx), 1 core: 3m 08.163s I know some guys are going to nag because it's written in java, and you need a java vm installed, but as mac/linux user i'm tired of seeing windows-only benchmarks. This is one we can all enjoy. If interested, you can betatest multipi v0.1. It runs on linux, mac, win32 and win64, but requires java 5 (1.5) to be installed. Just unzip and run multipi.bat or multipi.sh. Comments and thoughts can be posted here: http://www.hwbot.org/forums/viewtopic.php?id=196 Download: http://www.hwbot.org/download/multipi.zip __________________ __________________ HTPC (mac osx): Mac Mini \| Core Duo 1.6Ghz \| 2GB DDR2 \| 26\" TFT Development (mac osx): Macbook \| Core 2 2.0Ghz \| 4GB DDR2 \| 250GB HD Games (win xp): E2160 @ 2.4Ghz \| HD3850 OC \| Asrock 4coredual-vsta \| 2GB DDR2

11th September 2006, 23:58	#2
piotke [M] Reviewer Join Date: Jun 2002 Posts: 5,003	Download not working ? __________________ .

12th September 2006, 00:10	#3
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,021	http://www.hwbot.org/download/multipi-0.2.zip __________________

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