Function Cbrt

 

The Cbrt function computes a cube root of real vector elements.

 

Performance:

Dual-Core
 Intel(R) Xeon(R) processor 5100 Series
 45nm Intel(R)
Core(TM)2 Duo processor
Intel(R) Itanium(R) 2 processor
single HA 9.61 10.01 7.26
LA 7.99 7.28 7.26
EP 7.05 5.33 7.25
double HA 12.32 16.30 12.97
LA 11.07 13.55 12.70
EP 11.06 13.55 12.70


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

 

Accuracy:

Dual-Core
 Intel(R) Xeon(R) processor 5100 Series
 45nm Intel(R)
Core(TM)2 Duo processor
Intel(R) Itanium(R) 2 processor
single HA 0.88 0.88 0.50
LA 1.67 1.67 0.51
EP 1.30E+03 1.30E+03 0.51
double HA 0.50 0.50 0.50
LA 1.83 1.83 0.50
EP 1.90 1.90 0.50

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

 

 

Performance Graphs:

     

 

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