Developer Reference
Visible to Intel only — GUID: GUID-21716441-6303-45C3-8B15-BD0E91C77C18
ErfInv
Computes inverse error function value 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 | 6.66 | 5.44 | 4.62 | 2.65 |
LA | 2.82 | 2.84 | 2.59 | 1.23 | |
EP | 2.40 | 2.83 | 2.59 | 0.75 | |
double | HA | 17.06 | 19.27 | 16.29 | 6.53 |
LA | 10.93 | 13.57 | 11.43 | 5.88 | |
EP | 5.03 | 5.99 | 4.98 | 2.57 |
Notes:
- Units - CPE (Clocks per Element)
Performance was measured on "working" interval (double precision: [ -0.99999, 0.99999 ]; single precision: [ -0.99999, 0.99999 ])
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 | 0.52 |
LA | 2.68 | 2.68 | 2.68 | 2.58 | |
EP | 1.02E+03 | 2.68 | 2.68 | 2.31E+03 | |
double | HA | 0.50 | 0.50 | 0.50 | 0.51 |
LA | 1.67 | 1.67 | 1.67 | 0.98 | |
EP | 6.17E+07 | 6.17E+07 | 6.17E+07 | 6.17E+07 |
NOTE:
Units - ULP (Units in the Last Place).
Performance Graphs:
Parent topic: Special