Floor

Function Floor

The Floor function computes a rounded towards minus infinity integer value for each vector element.

Performance:

		Intel(R) Xeon(R) processor 5100 Series	45nm Intel(R) Core(TM)2 Duo processor	Intel(R) Itanium(R) 2 processor
single	HA	2.26	2.12	2.06
	LA	2.26	2.12	2.06
	EP	2.26	2.12	2.06
double	HA	4.17	1.92	2.06
	LA	4.17	1.92	2.06
	EP	4.17	1.92	2.06

Notes:
1) Units - CPE (Clocks per Element)
2) Performance was measured on "working" interval (double precision: [-5.0, 25.0]; single precision: [-3.0, 9.0])
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	0.00	0.00	0.00
	LA	0.00	0.00	0.00
	EP	0.00	0.00	0.00
double	HA	0.00	0.00	0.00
	LA	0.00	0.00	0.00
	EP	0.00	0.00	0.00

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

Performance Graphs:

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