Function InvCbrt

 

The InvCbrt function computes an inverse cube root of real vector elements.

 

Performance:

 Intel(R) Xeon(R) processor 5100 Series  45nm Intel(R)
Core(TM)2 Duo Processor		 Intel(R) Itanium(R) 2 processor
single HA 14.06 12.40 7.20
LA 9.69 8.94 7.20
EP 6.30 6.98 7.20
double HA 27.34 25.96 9.42
LA 18.70 17.34 9.21
EP 18.51 17.34 9.21


Notes:
1) Units - CPE (Clocks per Element)
2) Performance was measured on "working" interval (double precision: [ 0.0001 ; 10000.0 ]; single precision: [ 0.0001 ; 10000.0 ])
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 0.85 0.85 0.50
LA 1.03 1.03 0.50
EP 685.00 685.00 0.50
double HA 0.51 0.50 0.50
LA 2.12 2.12 0.50
EP 2.22 2.22 0.50

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

 

 

Performance Graphs:

     

 

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