Developer Reference
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InvCbrt
Computes an inverse cube root 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 | 16.45 | 5.75 | 4.80 | 1.43 |
LA | 5.25 | 5.75 | 4.80 | 1.18 | |
EP | 5.10 | 5.62 | 4.65 | 0.98 | |
double | HA | 9.29 | 9.35 | 7.82 | 2.83 |
LA | 8.40 | 8.59 | 7.27 | 2.61 | |
EP | 8.40 | 7.95 | 6.70 | 2.03 |
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 | 0.50 | 0.50 | 0.50 | 0.51 |
LA | 1.55 | 1.55 | 1.55 | 2.07 | |
EP | 889.00 | 889.00 | 889.00 | 2.76E+03 | |
double | HA | 0.51 | 0.51 | 0.51 | 0.55 |
LA | 3.00 | 3.00 | 3.00 | 1.73 | |
EP | 9.77E+05 | 9.77E+05 | 9.77E+05 | 3.73E+06 |
NOTE:
Units - ULP (Units in the Last Place).
Performance Graphs:
Parent topic: Root