| Gaussian Job | Number of processors | ||||||||
| 1 | 2 | 4 | 6 | 8 | |||||
| speedup | speedup | speedup | speedup | ||||||
| test231 (2000000,7000000) | 634 | 609 | 1.04 | 601 | 1.05 | 601 | 1.05 | 601 | 1.05 |
| test268 (2000000,7000000) | 2752 | 1715 | 1.60 | 1184 | 2.32 | 1057 | 2.60 | 977 | 2.82 |
| test333 ( 5 MW) | 6966 | 4634 | 1.50 | 3572 | 1.95 | 3419 | 2.04 | 3045 | 2.29 |
| test358 | 939 | 583 | 1.61 | 422 | 2.23 | 390 | 2.41 | 392 | 2.40 |
| test362 | 409 | 358 | 1.14 | 327 | 1.25 | 317 | 1.29 | 316 | 1.29 |
| test363 | 675 | 595 | 1.13 | 546 | 1.24 | 534 | 1.26 | 538 | 1.25 |
| test368 | 1787 | 1640 | 1.09 | 1542 | 1.16 | 1518 | 1.18 | 1590 | 1.12 |
| testDFT (24 MW) | 9918 | 5543 | 1.79 | 2954 | 3.36 | 1050 | 9.45 | 772 | 12.85 |
| testQCI (24 MW) | 686 | 692 | 0.99 | 688 | 1.00 | 731 | 0.94 | 755 | 0.91 |
| testQCIT (24 MW) | 277 | 278 | 1.00 | 275 | 1.01 | 280 | 0.99 | 281 | 0.99 |
| testCCt (24 MW) | 331 | 329 | 1.01 | 329 | 1.01 | 334 | 0.99 | 335 | 0.99 |
| Total (seconds) | 25374 | 16976 | 1.49 | 12440 | 2.04 | 10231 | 2.48 | 9602 | 2.64 |
| Total (minutes) | 422:54 | 282:56 | 207:20 | 170:31 | 160:02 | ||||
| Total (hours) | 7:02:54 | 4:42:56 | 3:27:20 | 2:50:31 | 2:40:02 | ||||
| Gaussian 98 A9 Benchnmark timings done by Rich Sudlow on Oct 27-28 2000. Benchmarks run on 16 processor Compaq AlphaServer GS160. named host-2000.cpqtbc.com with 64 GB RAM. Processors were 731 MHZ with 4 MB L2 cache. Disk subsytem was a hardware stripe set of (6) 10K rpm disks on a FC controller. Operating system is Tru64 Unix V5.1, Fortran is V5.3 ECO 02 RTL #389, with CMXL Extended Math Libraries for EV6, V3.6. All times listed are in seconds. These tests were performed with gaussian processes & memory locked to the same RAD by using the commands sysconfig -r ipc shm_allocate_striped=0 & runon -r 0. | |||||||||
| Gaussian Version: G98A9 | |||||||||
| Gaussian Job Memory: 6 MW unless noted | |||||||||