Pow

Function Pow

The Pow function computes a to power b for elements of two real vectors.

Performance:

		Intel(R) Xeon(R) processor 5100 Series	45nm Intel(R) Core(TM)2 Duo Processor	Intel(R) Itanium(R) 2 processor
single	HA	24.87	22.75	11.31
	LA	24.87	22.75	11.31
	EP	24.86	22.75	11.31
double	HA	54.24	54.61	21.52
	LA	54.24	50.22	21.49
	EP	54.24	50.22	21.49

Notes:
1) Units - CPE (Clocks per Element)
2) Performance was measured on "working" interval (double precision: [5.0, 100.0] for both arguments; single precision: [0.1, 10.0] for both arguments)
3) Data - vectors of 1000 elements with random generated numbers.

Accuracy:

		Intel(R) Xeon(R) processor 5100 Series	45nm Intel(R) Core(TM)2 Duo Processor	Intel(R) Itanium(R) 2 processor
single	HA	0.52	0.52	0.50
	LA	0.52	0.52	0.50
	EP	0.53	0.53	0.50
double	HA	0.50	0.50	0.50
	LA	1.87	1.87	0.50
	EP	1.87	1.87	0.50

Note: Units - ULP (Units in The Last Place).

Performance Graphs:

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