Developer Reference
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Cospi
Computes the cosine of vector elements multiplied by π.
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 | 3.63 | 3.39 | 2.88 | 1.96 |
LA | 1.81 | 1.48 | 1.22 | 0.73 | |
EP | 1.81 | 1.30 | 1.02 | 0.64 | |
double | HA | 8.80 | 9.04 | 7.58 | 3.56 |
LA | 5.22 | 3.99 | 3.28 | 1.67 | |
EP | 5.22 | 3.13 | 2.41 | 1.44 |
Notes:
- Units - CPE (Clocks per Element)
Performance was measured on "working" interval (double precision: [ -10000.0, 10000.0 ]; single precision: [ -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 | 0.50 | 0.50 | 0.50 | 0.50 |
LA | 2.01 | 2.01 | 2.01 | 2.01 | |
EP | 2.69E+03 | 2.69E+03 | 2.69E+03 | 2.69E+03 | |
double | HA | 0.50 | 0.50 | 0.50 | 0.52 |
LA | 2.95 | 2.95 | 2.95 | 2.74 | |
EP | 6.14E+07 | 6.14E+07 | 6.14E+07 | 3.63E+05 |
NOTE:
Units - ULP (Units in the Last Place).
Performance Graphs:
Parent topic: Trigonometric Functions