次世代PowerPC統合スレ

■次世代POWER/PowerPCを語る Vol.16
http://pc5.2ch.net/test/read.cgi/mac/1094955242/l50

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暇だね。

iMac スレッドより www.kurims.kyoto-u.ac.jp/~ooura/pi_fft-j.html で π の計算
pi_cs で length of FFT = 250000 (104 万桁)
26 秒 @ G4 1.33GHz
でした。
G5 だとどんなもんでしょう。
make -f Makefile_64bit だと速くなりますか?

Newisys hawks Horus Opteron chip
http://www.theinquirer.net/?article=18126
Newisys - Sanmina Special
http://www.amdboard.com/newisys.html
Custom ASIC Designed for Industry Standard Server Scalability Achieves Major Technical Milestone
http://www.amdboard.com/newisys_090704.html
米サーバメーカー、16／32-wayのOpteronサーバを実現するチップを開発
http://japan.cnet.com/news/ent/story/0,2000047623,20071104,00.htm

http://www.freescale.com/

Embedded Connectivity Summit (ECS) 10/4-6/'04
http://www.freescale.com/webapp/sps/site/homepage.jsp?nodeId=0525771710&tid=FS200409EMK5453

MPC8641D Dual Core Processor
http://www.freescale.com/webapp/sps/site/overview.jsp?code=DRPPCDUALCORE

MPC8641D/e600 Press Release
http://www.freescale.com/webapp/sps/site/display.jsp?nodeId=093623&filePath=/media_center/news_releases/2004/ncsg/09-28-04_DUALPROC.htm&title=News%20Release&tid=EMK200409EMK5519

165
速くなった希ガス

>>165
27秒@PB12/G4/1.33GHz ほぼ同じだね。

nanashi:~/wk/pi/pi_fftc6 hoge$ ./pi_cs
Calculation of PI using FFT and AGM, ver. LG1.1.2-MP1.5.2af.memsave
length of FFT =?
250000
initializing...
nfft= 262144
radix= 10000
error_margin= 0.00587898
mem_alloc_size= 9437304
calculating 1048576 digits of PI...
AGM iteration, time= 2, chksum= ffffdb4c
precision= 48, time= 3, chksum= fffff18d
precision= 80, time= 5, chksum= ffffe3e4
略
precision= 178816, time= 21, chksum= fffffbe5
precision= 357648, time= 22, chksum= ffffe715
precision= 715312, time= 24, chksum= fffff393
precision= 1430640, time= 25, chksum= ffffe44b
writing pi.dat...
Total 27 sec. (real time), chksum= 3f99

>>155-156は>>152への返信なり

削除人様削除乙であります

PowerMacG5:~/pi_fftc6 hoge$ ./pi_cs
Calculation of PI using FFT and AGM, ver. LG1.1.2-MP1.5.2af.memsave
length of FFT =?
250000
initializing...
nfft= 262144
radix= 10000
error_margin= 0.00587898
mem_alloc_size= 9437352
calculating 1048576 digits of PI...
AGM iteration, time= 1, chksum= ffffdb4c
precision= 48, time= 1, chksum= fffff18d
precision= 80, time= 2, chksum= ffffe3e4
略
precision= 715312, time= 9, chksum= fffff393
precision= 1430640, time= 10, chksum= ffffe44b
writing pi.dat...
Total 10 sec. (real time), chksum= 3f99

10秒、速えぇ

保守