Developer Reference
Visible to Intel only — GUID: GUID-EE831DD9-68F6-4891-A8F5-167F9CC2410C
Powx
Raises each element of a complex vector to the constant power, that is, computes a to power b, where b is a scalar.
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 | 675.88 | 852.98 | 649.98 | 613.77 |
LA | 675.88 | 852.98 | 649.98 | 613.77 | |
EP | 675.88 | 852.98 | 649.85 | 609.22 | |
double | HA | 672.58 | 846.93 | 643.77 | 607.33 |
LA | 672.47 | 846.93 | 643.68 | 606.18 | |
EP | 672.46 | 846.93 | 643.66 | 604.72 |
Notes:
- Units - CPE (Clocks per Element)
Performance was measured on "working" interval (double precision: [ 0.01, 20.0 ] × [ 0.01, 20.0 ]; single precision: [ 0.01, 20.0 ] × [ 0.01, 20.0 ])
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 | 0.50 | 0.50 | 0.50 | 0.50 |
LA | 0.50 | 0.50 | 0.50 | 0.50 | |
EP | 0.50 | 0.50 | 0.50 | 0.50 | |
double | HA | 0.00 | 0.00 | 0.00 | 0.00 |
LA | 0.00 | 0.00 | 0.00 | 0.00 | |
EP | 0.00 | 0.00 | 0.00 | 0.00 |
NOTE:
Units - ULP (Units in the Last Place).
Performance Graphs:
Parent topic: Power