Gamma

Gamma ( VSL_METHOD_SGAMMA_GNORM/ VSL_METHOD_DGAMMA_GNORM )

FP precision	BRNG	45nm Intel(R) Core(TM)2 Duo processor	Intel(R) Core(TM) i7 processor	Intel(R) Itanium(R) 2 processor
Single	MCG31m1	49.59	44.27	67.56
	R250	53.53	45.65	66.09
	MRG32k3a	79.30	66.80	77.37
	MCG59	45.25	39.78	67.66
	WH	76.12	66.50	94.64
	SOBOL	49.04	39.78	72.81
	NIEDERR	63.78	58.42	75.99
	MT19937	60.27	49.41	84.47
	MT2203	60.74	50.08	86.86
Double	MCG31m1	79.36	73.06	75.81
	R250	83.23	76.70	75.28
	MRG32k3a	109.29	97.82	86.09
	MCG59	75.90	67.94	75.26
	WH	104.51	93.90	102.45
	SOBOL	66.29	60.19	66.00
	NIEDERR	66.01	59.29	65.90
	MT19937	87.02	78.91	90.57
	MT2203	85.44	79.25	92.17

Notes:

The following hardware was used for measurements:
- 45nm Intel(R) Core(TM)2 Duo processor – 2 Quad Core CPUs (256Kb L1 and 12288Kb L2 cache), 2.8GHz, 8GB of RAM
- Intel(R) Core(TM) i7 processor – 1 Quad Core CPU (256Kb L1, 1Mb L2 cache and 8Mb L3 cache), 3.2GHz, 4GB of RAM
- Intel(R) Itanium(R) 2 processor – 4 Dual Core CPUs (64Kb L1, 2560Kb L2, 24Mb L3 cache), 1.6GHz, 8GB of RAM.
Performance is measured over the vector length of 1000 elements.