Developer Reference
Visible to Intel only — GUID: GUID-42F519B7-F33F-47AB-A739-015557A80FFB
MulByConj
Performs element-by-element multiplication of a complex vector a element and a conjugated complex vector b element.
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 | 9.06 | 5.24 | 4.45 | 3.09 |
LA | 4.64 | 5.24 | 4.45 | 3.09 | |
EP | 2.95 | 3.05 | 2.57 | 2.61 | |
double | HA | 20.63 | 11.66 | 10.33 | 9.99 |
LA | 20.63 | 11.66 | 10.33 | 9.99 | |
EP | 4.96 | 5.99 | 5.04 | 5.05 |
Notes:
- Units - CPE (Clocks per Element)
Performance was measured on "working" interval (double precision: [ -10000, 10000.0 ] × [ -10000, 10000 ] for HA and LA, [ 1000.0, 10000.0 ] for EP for both arguments; single precision: [ -10000.0, 10000.0 ] × [ -10000, 10000 ] for HA and LA, [ 1000.0, 10000.0 ] for EP for both arguments)
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 | 0.99 | 0.99 | 0.99 | 0.99 | |
double | HA | 0.50 | 0.50 | 0.50 | 0.50 |
LA | 0.50 | 0.50 | 0.50 | 0.50 | |
EP | 0.97 | 0.98 | 0.98 | 0.98 |
NOTE:
Units - ULP (Units in the Last Place).
Performance Graphs:
Parent topic: Arithmetic