Developer Reference
Visible to Intel only — GUID: GUID-EEED4D79-880E-42A8-8A25-B28BEB818D7A
Exp
Computes an exponential of real vector elements.
Performance:
Intel® Xeon® Processor E5-2680 | Intel® Xeon® Processor E5-2699 v3 | Intel® Xeon® Processor E5-2699 v4 | Intel® Xeon® Gold 6148 Processor | ||
---|---|---|---|---|---|
single | HA | 1.76 | 1.32 | 1.24 | 0.65 |
LA | 1.76 | 1.12 | 1.04 | 0.61 | |
EP | 1.76 | 0.80 | 0.75 | 0.52 | |
double | HA | 16.58 | 5.06 | 4.48 | 1.53 |
LA | 4.25 | 3.44 | 2.94 | 1.43 | |
EP | 3.90 | 3.20 | 2.76 | 1.00 |
Notes:
- Units - CPE (Clocks per Element)
Performance was measured on "working" interval (double precision: [ -707.0, 707.0 ]; single precision: [ -87.0, 87.0 ])
Data - vectors of 1000 elements with random generated numbers.
All data was collected with 64-bit libraries.
Accuracy:
Intel® Xeon® Processor E5-2680 | Intel® Xeon® Processor E5-2699 v3 | Intel® Xeon® Processor E5-2699 v4 | Intel® Xeon® Gold 6148 Processor | ||
---|---|---|---|---|---|
single | HA | 0.68 | 0.61 | 0.61 | 0.54 |
LA | 0.68 | 2.16 | 2.16 | 3.54 | |
EP | 2.04E+03 | 1.75E+03 | 1.75E+03 | 684.00 | |
double | HA | 0.51 | 0.51 | 0.51 | 0.58 |
LA | 2.18 | 2.18 | 2.18 | 1.23 | |
EP | 2.62E+07 | 2.62E+07 | 2.62E+07 | 2.02E+07 |
NOTE:
Units - ULP (Units in the Last Place).
Performance Graphs:
Parent topic: Exponential