MDBENCH RESULTS
MDBNCHを使って手もとのマシンのベンチマークを行った結果です。２つ以上のCPUを搭載しているマシンでも並列化は行っていませんのでCPU１個あたりの性能です．
G5はIBMのコンパイラと組み合わせれば結構いける。Itanium2はIntelコンパイラでのみ性能発揮。gfortran/g77ではCore2 Duoが圧倒的。POWER5は高い割に大して速くない。ベストバイはCore2 Duo、次点はAthlon64の性能から類推するにOpteronか。amd64とSolaris 10とSunStudio 11の組み合わせはそこそこだがCore2 Duoには全然かなわない。
Core DuoはPentium Mと同等でそれほど速くない。速いのはCore2 Duo。
＃Windows Server 2003 + Intel Compilerで初の1.0秒超え達成(ピーク値0.97)。平均すると1.03だがそれでも現在のところ最速クラス。高価なマシンなのでこのくらいの性能は出てくれないと。
g77で速いCPUはgccでも速いはずなので、Linux/BSDが速いのはCore2 Duoのはず。DesktopマシンでLinux使うにもCore2 Duoがおすすめ。Core2 Duo以外は選択の余地なし。予算がたっぷりあるなら別。Dual Xeon 5160のクラスタなんかが速そう。
| CPU | Memory | OS | Compiler | CP SECONDS |
|---|---|---|---|---|
| Core2 Duo E8500 3.16GHz x 2 | 4GB | openSUSE 10.3 x86_64 | ifort -static -axT -ipo -O3 -no-prec-div (10.1,64bit) | 0.52/100 |
| Core2 Duo E8500 3.16GHz x 2 | 4GB | openSUSE 10.3 x86_64 | ifort -fast (10.1,64bit) | 0.63/100 |
| Xeon E5345 2.33GHz x 2 | 8GB | openSUSE 11.0 x86_64 | ifort -static -axT -ipo -O3 -no-prec-div (11.0,64bit) | 0.70/100 |
| Xeon 3065 2.33GHz x 2 | 2GB | openSUSE 10.3 x86_64 | ifort -static -axT -ipo -O3 -no-prec-div (10.1,64bit) | 0.70/100 |
| Xeon 3065 2.33GHz x 2 | 2GB | openSUSE 10.3 x86_64 | ifort -fast (10.1,64bit) | 0.77/100 |
| Xeon E5345 2.33GHz x 2 | 8GB | openSUSE 11.0 x86_64 | ifort -fast (11.0,64bit) | 0.77/100 |
| Core2 Duo T7600 2.33GHz x 2 | 2GB | openSUSE Linux 10.2 x86_64 | ifort -fast (9.1) 64bit | 0.78 |
| Core2 Duo T7600 2.33GHz x 2 | 2GB | openSUSE Linux 10.2 x86_64 | ifort -fast (9.1) 32bit | 0.86 |
| Core2 Duo T7600 2.33GHz x 2 | 2GB | SUSE Linux 10.2 i386 | ifort -fast (9.1) | 0.86 |
| Core2 Duo E6400 2.13GHz x 2 | 1GB | SUSE Linux 10.1 x64 | ifort -fast (9.1) | 0.86 |
| Xeon 3065 2.33GHz x 2 | 2GB | openSUSE 10.3 x86_64 | ifort -fast (10.1,32bit) | 0.89/100 |
| Itanium 2 1.5GHz/6MB x 2 | 4GB | CentOS 4.7 | ifort -fast (11.0) | 0.936/100 |
| Itanium 2 1.6GHz/6MB x 2 | 4GB | CentOS 4.3 | ifort -fast (9.1) | 0.94 |
| Itanium 2 1.6GHz/6MB x 2 | 4GB | SGI Advanced Server | ifort -fast (9.1) | 0.94 |
| Opteron 1216 2.4GHz x 2 | 4GB | openSUSE 10.3 x86_64 | ifort -O3 -axP -no-prec-div -static -ipo (10.1/64bit) | 0.94/100 |
| Core2 Duo E6400 2.13GHz x 2 | 1GB | SUSE Linux 10.1 | ifort -fast (9.1) | 0.95 |
| Itanium 2 1.6GHz/6MB x 2 | 4GB | SGI Advanced Server | ifort -O3 (9.0) | 0.96 |
| PowerPC G5 2.5GHz x 2 | 4GB | openSUSE 10.3 | xlf -O3 -q64 -qsave -qhot -qtune=ppc970 -qarch=ppc970 -qunroll=yes -qextname (11.1) | 0.98/100 |
| PowerPC G5 2.5GHz x 2 | 4GB | openSUSE 10.3 | xlf -O4 -q64 -qextname (11.1) | 1.01/100 |
| PowerPC G5 2.5GHz x 2 | 4GB | SUSE Linux 10.1 | xlf -O3 -q64 -qsave -qhot -qtune=ppc970 -qarch=ppc970 -qunroll=yes -qextname | 1.01 |
| PowerPC G5 2.5GHz x 2 | 4GB | SUSE Linux 10.1 | xlf -O3 -q64 -qhot -qtune=ppc970 -qarch=ppc970 -qunroll=yes -qextname | 1.02 |
| PowerPC G5 2.5GHz x 2 | 4GB | SUSE Linux 10.1 | xlf -O4 -q64 -qextname | 1.03 |
| Itanium 2 1.5GHz/6MB x 2 | 4GB | Windows Server 2003 SP1 | ifort /O3 (9.0) | 1.03 |
| PowerPC G5 2.5GHz x 2 | 4GB | Mac OS X 10.4 | xlf -O3 -qhot -qtune=g5 -qarch=g5 -qunroll=yes -qextname | 1.03 |
| Itanium 2 1.6GHz/6MB x 2 | 4GB | SGI Advanced Server | ifort -O3 (8.1) | 1.04 |
| PowerPC G5 2.5GHz x 2 | 4GB | Mac OS X 10.3.5 | xlf -O3 -qhot -qtune=g5 -qarch=g5 -qunroll=yes -qextname | 1.05 |
| Athlon 64 3700+ 2.4GHz | 1GB | SUSE Linux 10.1 x64 | ifort -O3 -axW -static -ipo (9.1) | 1.05 |
| Athlon 64 3700+ 2.4GHz | 1GB | Solaris 10 6/06 | f90 -fast -xarch=amd64a (SS11) | 1.07 |
| Athlon 64 3700+ 2.4GHz | 1GB | Solaris 10 6/06 | f90 -fast (SS11) | 1.08 |
| PowerPC G5 2.5GHz x 2 | 4GB | Mac OS X 10.4.7 | xlf -O4 -qextname | 1.08 |
| Itanium 2 1.5GHz/6MB x 2 | 4GB | Debian GNU/Linux 3.1 | ifort -O3 -tpp2 (8.1) | 1.08 |
| Core2 Duo T7250 2.0GHz x 2 | 1GB | openSUSE 10.3 | ifort -fast | 1.08/100 |
| PowerPC G5 2.5GHz x 2 | 4GB | Mac OS X 10.3.5 | xlf -O4 | 1.10 |
| Itanium 2 1.5GHz/6MB x 2 | 4GB | Red Hat Linux AW 2.1 | ifort -O3 -tpp2 (8.0) | 1.12 |
| Athlon 64 3700+ 2.4GHz | 1GB | SuSE Linux 9.1 | pathf90 -O3 | 1.13 |
| Opteron 1216 2.4GHz x 2 | 4GB | openSUSE 10.3 x86_64 | ifort -O3 -axW -static -ipo (10.1/64bit) | 1.20 |
| Itanium 2 1.4GHz/3MB x 2 | 8GB | Red Hat Linux AS 2.1 | ifort -O3 -tpp2 (8.0) | 1.21 |
| POWER5 1.65GHz x 2 (smt off) | 4GB | SuSE Linux Enterprise Server 9 | xlf -O3 -q64 -qipa -qextname | 1.22 |
| Core2 Duo T5500 1.66GHz x 2 | 2GB | ubuntu7.04 | ifort -O3 -axT | 1.22 |
| Pentium 4 3.4EEGHz(2MB L3) | 2GB | Red Hat Linux 8.0? | ifort -O3 -axN (8.0) | 1.23 |
| Itanium 2 1.6GHz/3MB x 2 | 8GB | Red Hat Linux AS 2.1 | ifort -O3 -tpp2 (8.0) | 1.24 |
| POWER5 1.65GHz x 2 (smt off) | 4GB | SUSE Linux 10.1 | xlf -O4 -q64 -qsave -qextname | 1.30 |
| Athlon 64 3200+ 2.2GHz,FSB220MHz | 1GB | SuSE Linux 9.1 | pg77 -fast | 1.32 |
| Pentium 4 3.4EGHz(1MB) | 2GB | Solaris 10 1/06 | f95 -fast (Sun Studio 11) | 1.32 |
| Pentium D 3.0GHz | 1GB | SuSE Linux 10.1 x64 | ifort -fast (9.1) | 1.32 |
| Pentium 4 3.4EGHz(1MB) | 2GB | SuSE Linux 9.1 | ifort -O3 -axP (8.0) | 1.33 |
| Core Duo 2GHz | 1GB | openSUSE 10.3 | ifort -O3 -xP -static -ipo (10.1) | 1.33/100 |
| Core Duo 2GHz | 2GB | SUSE Linux 10.1 | ifort -fast (9.1) | 1.34 |
| Pentium 4 3.4EGHz(1MB) | 2GB | Solaris 10 3/05 | f95 -fast (Sun Studio 11) | 1.35 |
| POWER5 1.65GHz x 2 | 4GB | SUSE Linux 10.1 | xlf -O4 -q64 -qextname (10.1) | 1.36 |
| POWER5 1.65GHz x 2 | 4GB | SuSE Linux Enterprise Server 9 | xlf -O3 -q64 -qipa | 1.38 |
| Pentium 4 Xeon 3.2GHz x 4 | 4GB | RedHat Linux 3.0 ES | ifort -O3 -axN (8.1) | 1.46 |
| Core Duo 2GHz | 2GB | Windows XP Professional | absoft f77 -O3 | 1.56 |
| Pentium M 1.8GHz | 1GB | SuSE Linux 9.1 | ifort -O3 -axB | 1.57 |
| Core Duo T2300E 1.66GHz | 1GB | openSUSE 10.2 | ifort -O3 -axB | 1.57 |
| Celeron M 430 1.73GHz | 2GB | ubuntu 7.04 | ifort -O3 -axB | 1.57 |
| Core Duo T2300E 1.66GHz | 1GB | openSUSE 10.2 | ifort -fast | 1.60 |
| Pentium M 1.8GHz | 1GB | ubuntu Linux 6.10 | g77 -O3 -march=pentium4 -fomit-frame-pointer | 1.61 |
| PowerPC G5 2.5GHz x 2 | 4GB | Mac OS X 10.3.5 | f90 -O3 -lU77 (Absoft) | 1.66 |
| Pentium 4 541 3.2GHz | 1GB | Windows XP Professional | absoft f77 -O3 | 2.08 |
| Athlon XP 2500+(1832MHz) | 512MB | Gentoo Linux 1.4 | pgf77 -fast -tp athlonxp | 2.18 |
| Athlon XP 2500+(1832MHz) | 512MB | Gentoo Linux 1.4 | ifc -O3 -tpp5 | 2.23 |
| PowerPC G4 1.33GHz x 2 | 1GB | Mac OS X Server 10.2.8 | xlf -O3 | 2.94 |
| Alpha21264 731MHz x 32 | 64GB | Tru64 UNIX V5.1 | f77 -O4 | 3.51 |
| Pentium III Xeon 933MHz x 2 | 1GB | SuSE Linux 8.2 | ifc -O3 -tpp6 | 4.90 |
| PowerPC G4 867MHz | 640MB | Mac OS X 10.3.4(IBM) | xlf -O3 | 4.96 |
| Pentium III Xeon 933MHz x 2 | 1GB | SuSE Linux 8.2 | pgf77 -fast -tp p6 | 5.15 |
| SPARC64x64 | 12GB | Solaris 7 | frt -K fast | 6.35 |
| HP-PA 8500 440MHz x 8 | 8GB | HPUX 11.0 | f90 +O4 +DA2.0W | 6.83 |
| PowerPC G4 867MHz | 640MB | Mac OS X 10.3.4(Absoft) | f90 -O3 -lU77 | 7.05 |
| UltraSPARC II 400MHz x 2 | 2GB | Solaris 2.6 | f90 -fast | 10.14 |
| VPP5000 PEx64 | 1GB | UXP/V | frt -K fast | 17.30 |
gfortran/g77でのCPU性能比較
| CPU | Memory | OS | Compiler | CP SECONDS |
|---|---|---|---|---|
| Core i7 2.66GHz x 2 | 8GB | Mac OS X 10.6.4 | gfortran -O3 | 0.56/100 |
| Core2 Duo E8500 3.16GHz x 2 | 4GB | Windows Vista | gfortran -O3 -march=core2 | 0.64/100 |
| Xeon E5540 2.53GHz x 2 | 4GB | openSUSE 11.2 x86_64 | gfortran -O3 -m64 -march=core2 | 0.71/100 |
| Core2 Duo P8700 2.53GHz x 2 | 4GB | Windows 7 x64 | gfortran -O3 -m64 -march=core2 | 0.72/100 |
| Core2 Duo P8800 2.66GHz x 2 | 2GB | ubuntu 10.04 | gfortran -O3 -march=core2 | 0.76/100 |
| Xeon 3065 2.33GHz x 2 | 2GB | openSUSE 11.0 x86_64 | gfortran -O3 -m64 -march=nocona | 0.82/100 |
| Xeon 3065 2.33GHz x 2 | 2GB | openSUSE 11.0 x86_64 | gfortran -O3 | 0.83/100 |
| Xeon E5345 2.33GHz x 2 | 8GB | openSUSE 11.0 x86_64 | gfortran -O3 -m64 -march=nocona | 0.84/100 |
| Xeon 3065 2.33GHz x 2 | 2GB | openSUSE 10.3 x86_64 | gfortran -O3 -m64 -march=nocona | 0.86/100 |
| Core2 Duo T7600 2.33GHz x 2 | 2GB | openSUSE Linux 10.2 x86_64 | gfortran -m64 -O3 | 0.87 |
| Xeon 3065 2.33GHz x 2 | 2GB | openSUSE 10.3 x86_64 | gfortran -O3 -m64 | 0.89/100 |
| Core2 Duo T8100 2.10GHz x 2 | 3GB | Windows XP | gfortran -O3 -march=core2 | 0.92/100 |
| Core2 Duo T7600 2.33GHz x 2 | 2GB | VineLinux 5 | gfortran -O3 -march=nocona | 0.98/100 |
| Xeon 3065 2.33GHz x 2 | 2GB | openSUSE 10.3 x86_64 | gfortran -O3 -m32 | 1.02/100 |
| Core2 Duo E6400 2.13GHz x 2 | 1GB | SUSE Linux 10.1 x64 | gfortran -O3 | 1.03 |
| Core2 Duo T7600 2.33GHz x 2 | 2GB | openSUSE Linux 10.2 x86_64 | g77 -m32 -O3 | 1.04 |
| Core2 Duo T7600 2.33GHz x 2 | 2GB | openSUSE Linux 10.2 x86_64 | gfortran -m32 -O3 | 1.05 |
| Core2 Duo T7250 2.0GHz x 2 | 1GB | openSUSE 11.0 x86_64 | gfortran -O3 | 1.06/100 |
| Core2 Duo T7600 2.33GHz x 2 | 2GB | openSUSE Linux 10.2 x86_64 | g77 -m64 -O3 | 1.15 |
| Core2 Duo T7600 2.33GHz x 2 | 2GB | Vine Linux 4.0 on Virtual PC 2004 (Windows XP) | g77 -O3 | 1.15 |
| Core2 Duo E6400 2.13GHz x 2 | 1GB | SUSE Linux 10.1 | g77 -O3 | 1.16 |
| Core2 Duo P7700 1.8GHz x 2 | 2GB | openSUSE 11.0 x86_64 on VMware Fusion | gfortran -O3 | 1.21/100 |
| Core2 Duo T7250 2.0GHz x 2 | 1GB | openSUSE 10.3 | gfortran -O3 -march=i686 | 1.23/100 |
| Athlon 64 3700+ 2.4GHz | 1GB | SUSE Linux 10.1 x64 | g77 -O3 | 1.24 |
| Athlon 64 3700+ 2.4GHz | 1GB | SUSE Linux 10.1 x64 | gfortran -O3 | 1.24 |
| Opteron 1216 2.4GHz x 2 | 4GB | openSUSE 10.3 x86_64 | gfortran -O3 | 1.25 |
| Athlon 64 3700+ 2.4GHz | 1GB | SuSE Linux 9.1 | g77 -O3 | 1.26 |
| Athlon 64 3700+ 2.4GHz | 1GB | SuSE Linux 9.2 | g77 -O3 | 1.26 |
| Athlon 64 3700+ 2.4GHz | 1GB | Gentoo Linux 2004.2 | g77 -O3 | 1.27 |
| Athlon 64 3700+ 2.4GHz | 1GB | OpenBSD 3.6 (amd64) | g77 -O3 | 1.27 |
| Core2 Duo SU9400 1.4GHz x 2 | 5GB | Windows 7 x64 | gfortran -O3 -march=core2 | 1.28 |
| Core2 Duo T5500 1.66GHz x 2 | 1GB | openSUSE Linux 10.2 x86_64 | gfortran -m64 -O3 | 1.29 |
| Athlon 64 3700+ 2.4GHz | 1GB | NetBSD 2.0 (amd64) | g77 -O3 | 1.29 |
| PowerPC G5 2.5GHz x 2 | 4GB | openSUSE 10.3 | gfortran -O3 -m64 | 1.29/100 |
| Athlon 64 3700+ 2.4GHz | 1GB | OpenBSD 3.6 (i386) | eg77 -O3 -march=i686 | 1.30 |
| Core2 Duo E6400 2.13GHz x 2 | 1GB | SUSE Linux 10.1 x64 | g77 -O3 | 1.31 |
| PowerPC G5 2.5GHz x 2 | 4GB | SUSE Linux 10.1 | gfortran -O3 -m64 | 1.32 |
| PowerPC G5 2.5GHz x 2 | 4GB | SUSE Linux 10.1 | g77 -O3 | 1.32 |
| Athlon 64 3200+ 2.2GHz,FSB220MHz | 1GB | SuSE Linux 9.1 | g77 -O3 | 1.33 |
| Athlon 64 3700+ 2.4GHz | 1GB | SuSE Linux 9.2 (32bit) | g77 -O3 -march=i686 | 1.33 |
| Core Duo 2GHz | 1GB | openSUSE 10.3 | gfortran -O3 -march=i686 | 1.35/100 |
| Turion 64 TL-60 2GHz x 2 | 1GB | openSUSE 10.3 x86_64 | gfortran -O3 -march=athlon64 | 1.36/100 |
| Core Duo 2GHz | 2GB | SUSE Linux 10.1 | g77 -O3 -march=i686 | 1.39 |
| PowerPC G5 2.5GHz x 2 | 4GB | Mac OS X 10.3.5 | g77 -O3 | 1.39 |
| Core Duo 2GHz | 2GB | SUSE Linux 10.1 | gfortran -O3 -march=i686 | 1.40 |
| Turion X2 RM-72 2.1GHz x 2 | 2GB | ubuntu 8.10 i386 | gfortran -O3 -march=k8 | 1.40/100 |
| POWER5 1.65GHz x 2 | 4GB | Fedora 11 | gfortran -O3 -mpowerpc64 | 1.41/100 |
| Core2 Duo T5500 1.66GHz x 2 | 1GB | openSUSE Linux 10.2 x86_64 | gfortran -m32 -O3 -march=i686 | 1.43 |
| POWER5 1.65GHz x 2 | 4GB | SuSE Linux 10.1 | g77 -O3 | 1.47 |
| Athlon 64 3200+ 2.0GHz,FSB200MHz | 1GB | Gentoo Linux 2004.2 | g77 -O3 | 1.49 |
| Turion 64 TL-56 1.8GHz | 2GB | openSUSE 10.2 x64 | gfortran -O3 -march=k8 | 1.49 |
| Celeron M 430 1.73GHz | 2GB | ubuntu 7.10 | gfortran -O3 -march=i686 -ffast-math -funroll-loops | 1.51 |
| Pentium 4 3.4EGHz(1MB) | 2GB | Windows Server 2003 + Cygwin | g77 -O3 -march=i686 | 1.53 |
| Pentium D 3.0GHz | 1GB | SuSE Linux 10.1 x64 | gfortran -O3 | 1.54 |
| Core Duo 2GHz | 2GB | CentOS 4.3 on Virtual PC 2004/Windows XP Professional | g77 -O3 -march=pentium4 -fomit-frame-pointer | 1.58 |
| Pentium 4 3.4EGHz(1MB) | 2GB | SuSE Linux 9.1 | g77 -O3 -march=pentium4 | 1.58 |
| Core 2 Duo T5500 1.66GHz | 768MB | Vine Linux 4.0 | g77 -O3 -march=i686 | 1.59 |
| Athlon 64 3200+ 2.0GHz,FSB200MHz | 1GB | Java Desktop System R2 | g77 -O3 -march=athlon-xp | 1.59 |
| Pentium M 1.8GHz | 1GB | ubuntu Linux 6.10 | g77 -O3 -march=pentium4 -fomit-frame-pointer | 1.61 |
| Core Duo T2300E 1.66GHz | 1GB | openSUSE 10.2 | gfortran -O3 -march=i686 | 1.62 |
| Pentium D 3.0GHz | 1GB | OpenBSD 3.9 (amd64) | g77 -O3 -march=pentium4 | 1.63 |
| Pentium M 1.8GHz | 1GB | ubuntu Linux 6.10 | g77 -O3 -march=pentium4 | 1.64 |
| Pentium M 1.8GHz | 1GB | SuSE Linux 9.1 | g77 -O3 -march=pentium4 | 1.68 |
| Athlon XP 3000+(2160MHz) | 512MB | Gentoo Linux 2004.2 | g77 -O3 -march=athlon-xp | 1.74 |
| POWER5 1.65GHz x 2 (smt off) | 4GB | SuSE Linux Enterprise Server 9 | g77 -O3 | 1.78 |
| Pentium 4 Xeon 3.2GHz x 4 | 4GB | RedHat Linux 3.0 ES | g77 -O3 | 1.80 |
| POWER5 1.65GHz x 2 | 4GB | Fedora 11 | gfortran -O3 | 1.82/100 |
| Pentium M 1.8GHz | 1GB | Windows XP Professional + MinGW | g77 -O3 -march=pentium4 -fomit-frame-pointer | 1.87 |
| Athlon XP 3000+(2160MHz) | 512MB | Windows XP Professional + MinGW | g77 -O3 -march=athlon-xp | 1.88 |
| Athlon XP 2500+(1832MHz) | 512MB | Gentoo Linux 1.4 | g77 -O3 -march=athlon-xp | 1.93 |
| POWER5 1.65GHz x 2 | 4GB | SuSE Linux Enterprise Server 9 | g77 -O3 | 2.14 |
| Itanium 2 1.6GHz/6MB x 2 | 4GB | CentOS 4.3 | gfortran -O3 | 2.20 |
| Itanium 2 1.6GHz/6MB x 2 | 4GB | SGI Advanced Server | g77 -O3 | 2.26 |
| Itanium 2 1.6GHz/6MB x 2 | 4GB | CentOS 4.3 | g77 -O3 | 2.33 |
| Itanium 2 1.5GHz/6MB x 2 | 4GB | Debian Linux 3.1 | g77 -O3 (3.4) | 2.53 |
| Pentium M 1.1GHz | 512MB | Windows XP Professional + Cygwin | g77 -O3 -march=pentium4 | 2.66 |
| Celeron 2.0GHz | 512MB | SUSE Linux 10.1 | g77 -O3 -march=pentium4 | 2.92 |
| Itanium 2 1.5GHz/6MB x 2 | 4GB | Red Hat Linux AW 2.1 | g77 -O3 | 3.11 |
| PowerPC G4 1.33GHzx2 | 512MB | Yellow Dog Linux 4.0 | g77 -O3 | 3.66 |
| PowerPC G4 1.33GHzx2 | 512MB | Yellow Dog Linux 3.0.1 | g77 -O3 -mcpu=7450 | 3.74 |
| PowerPC G4 1.33GHzx2 | 512MB | Vine Linux 4.1 | g77 -O3 -mcpu=7450 | 3.86 |
| Pentium III Xeon 933MHz x 2 | 1GB | SuSE Linux 8.2 | g77 -O3 -march=i686 | 4.64 |
| Mobile Pentium III 700MHz | 256MB | CentOS 4.4 | gcc -O3 -march=pentium3 | 6.27 |
| UntraSPARC IIe 400MHz | 256MB | OpenBSD 3.2 | g77 -O3 | 11.33 |
HP Workstation zx6000でのコンパイラ性能比較
計算を10回繰り返すようにソースを変更した時の結果
| CPU | Memory | OS | Compiler | CP SECONDS |
|---|---|---|---|---|
| Itanium 2 1.5GHz/6MB x 2 | 4GB | CentOS 4.5 | ifort -fast | 9.911 |
| Itanium 2 1.5GHz/6MB x 2 | 4GB | CentOS 4.5 | gfortran -O3 | 22.533 |
| Itanium 2 1.5GHz/6MB x 2 | 4GB | CentOS 4.5 | g77 -O3 | 27.792 |
さすがにIntelコンパイラは早い。
