Ln
Computes a natural logarithm of complex 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
|
22.00
|
23.10
|
19.39
|
14.30
|
LA
|
16.28
|
15.19
|
13.27
|
8.83
| |
EP
|
11.34
|
9.59
|
8.15
|
5.43
| |
double
|
HA
|
57.91
|
51.61
|
44.33
|
32.35
|
LA
|
44.37
|
44.45
|
37.89
|
27.43
| |
EP
|
30.42
|
35.07
|
30.15
|
20.81
| |
Notes:
- Units - CPE (Clocks per Element)
- Performance was measured on "working" interval (double precision: [ 0.01, 20.0 ] × [ 0.01, 20.0 ]; single precision: [ 0.01, 20.0 ] × [ 0.01, 20.0 ])
- 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
|
0.71
|
0.71
|
0.71
|
0.71
|
LA
|
2.19
|
2.12
|
2.12
|
2.19
| |
EP
|
3.61E+03
|
3.61E+03
|
3.61E+03
|
3.61E+03
| |
double
|
HA
|
0.71
|
0.71
|
0.71
|
0.71
|
LA
|
2.09
|
2.09
|
2.09
|
2.09
| |
EP
|
1.97E+07
|
1.97E+07
|
1.97E+07
|
1.97E+07
| |
Note:
Units - ULP (Units in the Last Place).Performance Graphs:
