Developer Reference
Visible to Intel only — GUID: GUID-58F3F18F-AC97-4381-B011-B038F4CA3879
Fdim
Returns vector containing the differences of the corresponding elements of the vector arguments if the first is larger and +0 otherwise.
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 | 1.09 | 0.63 | 0.53 | 0.46 |
LA | 1.09 | 0.63 | 0.53 | 0.46 | |
EP | 1.09 | 0.63 | 0.53 | 0.46 | |
double | HA | 5.02 | 1.60 | 1.35 | 0.89 |
LA | 5.01 | 1.59 | 1.35 | 0.89 | |
EP | 5.01 | 1.59 | 1.35 | 0.89 |
Notes:
- Units - CPE (Clocks per Element)
Performance was measured on "working" interval (double precision: [ -10000.0, 10000.0 ] for both arguments; single precision: [ -10000.0, 10000.0 ] 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 | 0.50 | 0.50 | 0.50 | 0.50 | |
double | 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 |
NOTE:
Units - ULP (Units in the Last Place).
Performance Graphs:
Parent topic: Miscellaneous