Developer Reference
Visible to Intel only — GUID: GUID-3401A020-2267-47AA-BAE1-EFE0A3E95A4A
Abs
Computes the absolute value of complex 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 | 5.44 | 3.68 | 3.08 | 1.77 |
LA | 2.31 | 1.80 | 1.49 | 1.21 | |
EP | 2.31 | 1.51 | 1.25 | 0.95 | |
double | HA | 10.15 | 9.40 | 7.83 | 3.56 |
LA | 10.15 | 4.77 | 4.00 | 2.73 | |
EP | 10.15 | 4.38 | 3.65 | 2.47 |
Notes:
- Units - CPE (Clocks per Element)
Performance was measured on "working" interval (double precision: [ -10000.0, 10000.0 ] × [ -10000.0, 10000.0 ]; single precision: [ -10000.0, 10000.0 ] × [ -10000.0, 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 | 0.56 | 0.56 | 0.56 | 0.51 |
LA | 1.09 | 0.83 | 0.83 | 1.05 | |
EP | 3.76E+03 | 3.76E+03 | 3.76E+03 | 3.76E+03 | |
double | HA | 0.81 | 0.81 | 0.81 | 0.81 |
LA | 1.54 | 0.91 | 0.91 | 0.91 | |
EP | 3.88E+05 | 3.88E+05 | 3.88E+05 | 2.37E+07 |
NOTE:
Units - ULP (Units in the Last Place).
Performance Graphs:
Parent topic: Arithmetic