Function Powx

 

The Powx function raises each element of a complex vector to the constant power, that is, computes a to power b, where b is scalar.

 

Performance:

 Intel(R) Xeon(R) processor 5100 Series  45nm Intel(R)
Core(TM)2 Duo Processor
Intel(R) Itanium(R) 2 processor
single HA 1.07E+03 1.04E+03 1.49E+03
LA 1.07E+03 956.50 1.49E+03
EP 1.07E+03 956.41 1.49E+03
double HA 1.04E+03 932.29 1.45E+03
LA 1.04E+03 932.29 1.44E+03
EP 1.04E+03 931.61 1.44E+03

Notes:
1) Units - CPE (Clocks per Element)
2) Performance was measured on "working" interval (
double precision: [0.01, 20.00] × [0.01, 20.00]; single precision: [0.01, 20.00] × [0.01, 20.00])
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 0.50 0.50 0.50
LA 0.50 0.50 0.50
EP 0.50 0.50 0.50
double HA 0.50 0.50 0.50
LA 0.50 0.50 0.50
EP 5.69E+04 5.69E+04 5.69E+04

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

 

 

Performance Graphs:

     

 

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