Developer Reference
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Pow2o3
Raises each element of a vector to the constant power 2/3.
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 | 15.11 | 5.66 | 4.75 | 1.26 |
LA | 11.44 | 3.60 | 3.13 | 1.05 | |
EP | 10.00 | 3.35 | 2.80 | 0.87 | |
double | HA | 25.58 | 8.89 | 7.36 | 2.70 |
LA | 7.76 | 8.31 | 7.01 | 2.43 | |
EP | 6.71 | 7.67 | 6.53 | 1.82 |
Notes:
- Units - CPE (Clocks per Element)
Performance was measured on "working" interval (double precision: [ 0.1, 10000.0 ]; single precision: [ 0.1, 10000.0 ])
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 | 0.51 | 0.51 | 0.51 | 0.57 |
LA | 1.60 | 1.60 | 1.60 | 1.70 | |
EP | 811.00 | 812.00 | 812.00 | 1.54E+03 | |
double | HA | 0.51 | 0.51 | 0.51 | 0.53 |
LA | 1.23 | 1.23 | 1.23 | 1.72 | |
EP | 9.89E+06 | 9.89E+06 | 9.89E+06 | 1.09E+07 |
NOTE:
Units - ULP (Units in the Last Place).
Performance Graphs:
Parent topic: Power