Arg

< Vector Math Library (VML) Performance and Accuracy Data

Function Arg

The Arg function computes the argument of vector elements.

Performance:

		Intel® Xeon® Processor X5570	Intel® Xeon® Processor E7-4870	Intel® Xeon® Processor E5-2690
single	HA	28.22	28.05	14.22
	LA	11.11	11.09	5.74
	EP	9.66	9.67	4.72
double	HA	52.16	52.30	32.38
	LA	35.91	36.98	21.91
	EP	29.38	28.90	14.23

Notes:
1) Units - CPE (Clocks per Element)
2) Performance was measured on "working" interval (double precision: [-10000, 10000] × [-10000, 10000]; single precision: [-10000.0, 10000.0] × [-10000, 10000])
3) Data - vectors of 1000 elements with random generated numbers.

Accuracy:

		Intel® Xeon® Processor X5570	Intel® Xeon® Processor E7-4870	Intel® Xeon® Processor E5-2690
single	HA	0.72	0.72	0.72
	LA	2.35	2.35	2.82
	EP	3.69E+03	3.69E+03	3.69E+03
double	HA	0.73	0.73	0.73
	LA	3.01	3.01	3.01
	EP	2.03E+07	2.03E+07	2.03E+07

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

Performance Graphs:

Optimization Notice

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804

Optimization Notice
Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice. Notice revision #20110804

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