|
Opteron 285 |
Dempsey 3.2 GHz |
Woodcrest 2.66 GHz |
Wall clock time, seconds |
3039.6 |
2838.9 |
1701.5 |
AMD Opteron 285 2.6 GHz, Rev. E, dual processor (four CPU cores), Sun Galaxy X4100, 8x1024 MB DDR 400 ECC Registered RAM, 74GB Fujitsu 10K SAS Drive, Linux RHEL AMD64 Release 3.
Intel Xeon DP 5060 (Dempsey, Netburst core) 3.2 GHz, 1067 MHz FSB, dual-processor (four CPU cores), Bensley platform, 4 GB DDR2 667 MHz RAM, 120 GB IDE HDD, Windows 2003 Enterprise Edition x64
Intel Xeon 5150 (Woodcrest, Core 2 core) 2.66 GHz, dual-processor (four CPU cores), SuperMicro X7DB8+ baseboard with Blackford chipset, 8x1024 MB DDR2 667 MHz RAM, 120 GB IDE HDD, Windows 2003 Enterprise Edition x64 SP 2 beta 1
In all cases, PC GAMESS used all four CPU cores running in multithreaded mode.
Single-point direct MP4-SDTQ (i.e, MP4(full)) energy for small molecular cluster (Cl-(HF)5, Cartesian 6-311+G(2d,2p) basis set, 227 AOs, 34 occupied (10 frozen core) MOs, 193 virtual MOs View image