Developer Reference
Visible to Intel only — GUID: GUID-33C416CA-9C25-4466-8A7D-13A5B94FED9E
ExpInt1
Computes function computes the exponential integral of 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 | 60.49 | 60.35 | 42.28 | 40.53 |
LA | 60.49 | 60.35 | 42.26 | 40.53 | |
EP | 17.31 | 11.12 | 8.98 | 7.22 | |
double | HA | 149.45 | 180.27 | 138.53 | 140.70 |
LA | 149.44 | 180.23 | 138.53 | 140.70 | |
EP | 19.62 | 13.52 | 11.87 | 13.57 |
Notes:
- Units - CPE (Clocks per Element)
Performance was measured on "working" interval (double precision: [ 0.00001, 10.0 ]; single precision: [ 0.00001, 10.0 ])
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 | 0.66 | 0.66 | 0.66 | 0.66 |
LA | 0.66 | 0.66 | 0.66 | 0.66 | |
EP | 181.08 | 181.08 | 181.08 | 181.08 | |
double | HA | 0.67 | 0.67 | 0.67 | 0.67 |
LA | 0.67 | 0.67 | 0.67 | 0.67 | |
EP | 1.42E+06 | 1.42E+06 | 1.42E+06 | 1.31E+06 |
NOTE:
Units - ULP (Units in the Last Place).
Performance Graphs:
Parent topic: Special