Gaussian Benchmark

(note: Power4 numbers are from this paper)

1. alpha phinene HF single point energy calculations, l502.exe

	Power4 1.3 GHz		SGI Origin 2000 250 GHz		HP Superdome 750 MHz
# of processors	time	speedup	Time	Speedup	Time	Speedup
1	843	1.00	3418.4	1.00	975.7	1.00
2	439	1.92	1723.9	1.98	552.2	1.77
4	282	2.99	907.2	3.77	272.0	3.58
8	164	5.14	473.4	7.22	148.3	6.58
16	97	8.69	271.4	12.60	83.8	11.64
32	63	13.38	180.8	18.91	50.7	19.24

2. Gaussian Benchmark for B3LYP Force Calculation on Valinomycin

	L502.exe						L703.exe
	Power4 1.3 GHz		SGI Origin 2000 250 MHz		HP Superdome 750 MHZ		Power4 1.3 GHz		SGI Origin 2000 250 MHz		HP Superdome 750 MHZ
# of processors	time	speedup	time	speedup	time	speedup	time	speedup	time	speedup	time	speedup
1	12437	1.00	60554.9	1.00	19382.8	1.00	3039	1.00	12004.7	1.00	4243.6	1.00
2	6509	1.91	31605.2	1.92	12713.6	1.52	1651	1.84	6100.3	1.99	2544.6	1.67
4	4421	2.81	18787.2	3.22	6301.4	3.08	1095	2.78	3212.8	3.74	1189.3	3.57
8	2692	4.62	12009.7	5.04	3705.3	5.23	626	4.85	1879.2	6.39	606.6	7.00
16	1788	6.96	9139.7	6.62	2435.3	7.96	398	7.64	1145.4	10.48	317.2	13.38
32	1370	9.08	5666.2	10.69	1766.3	10.97	294	10.34	862.1	13.92	161.4	26.29