Function Tanh

 

The Tanh function computes a hyperbolic tangent 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 10.71 12.61 6.72
LA 9.22 12.61 6.71
EP 8.63 11.09 6.71
double HA 20.44 17.38 13.40
LA 12.67 16.04 13.18
EP 12.67 15.95 13.18

Notes:
1) Units - CPE (Clocks per Element)
2) Performance was measured on "working" interval (double precision: [ -19, 19 ]; single precision: [ -9, 9 ])
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 0.50 0.50 0.50
LA 0.66 0.66 0.50
EP 2.61E+03 2.37E+03 0.50
double HA 0.60 0.60 0.50
LA 1.18 1.18 0.50
EP 1.19 1.19 0.50

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

 

 

Performance Graphs:

     

 

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