Expm1
Computes an exponential of vector elements decreased by 1.
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
|
4.40
|
5.13
|
4.24
|
1.33
|
LA
|
4.40
|
3.37
|
2.84
|
0.71
| |
EP
|
2.64
|
3.06
|
2.51
|
0.54
| |
double
|
HA
|
8.19
|
8.67
|
7.33
|
2.64
|
LA
|
5.90
|
5.74
|
4.79
|
1.67
| |
EP
|
4.36
|
4.01
|
3.37
|
1.24
| |
Notes:
- Units - CPE (Clocks per Element)
- Performance was measured on "working" interval (double precision: [ -500.0, 500.0 ]; single precision: [ -70.0, 70.0 ])
- 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
|
0.51
|
0.51
|
0.51
|
0.50
|
LA
|
1.91
|
1.91
|
1.91
|
1.91
| |
EP
|
40.30
|
5.48
|
5.48
|
5.48
| |
double
|
HA
|
0.50
|
0.50
|
0.50
|
0.50
|
LA
|
0.96
|
0.96
|
0.96
|
0.92
| |
EP
|
1.69E+04
|
1.68E+04
|
1.68E+04
|
2.26E+03
| |
Note:
Units - ULP (Units in the Last Place).Performance Graphs:
