Function Exp

 

The Exp function computes an exponential 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 6.92 6.10 4.16
LA 6.62 5.60 4.16
EP 4.31 4.36 4.16
double HA 13.79 13.74 6.52
LA 10.90 10.72 6.24
EP 8.58 8.35 6.21

Notes:
1) Units - CPE (Clocks per Element)
2) Performance was measured on "working" interval (double precision: [-707.0, 707.0]; single precision: [-87.0, 87.0])
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 0.52 0.52 0.51
LA 1.51 1.51 0.51
EP 2.10E+03 2.10E+03 0.51
double HA 0.51 0.51 0.51
LA 2.40 2.40 0.51
EP 2.75E+07 2.75E+07 0.51

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

 

 

Performance Graphs:

     

 

Legal Information

Copyright © 2000-2007, Intel Corporation.