Acos
Computes an inverse cosine 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
|
3.55
|
3.21
|
2.91
|
1.72
|
LA
|
3.55
|
2.20
|
2.11
|
1.23
| |
EP
|
3.55
|
1.91
|
1.73
|
1.01
| |
double
|
HA
|
10.02
|
7.92
|
7.01
|
3.68
|
LA
|
8.64
|
6.61
|
6.13
|
3.04
| |
EP
|
6.63
|
4.83
|
4.33
|
2.33
| |
Notes:
- Units - CPE (Clocks per Element)
- Performance was measured on "working" interval (double precision: [ -1.0, 1.0 ]; single precision: [ -1.0, 1.0 ])
- 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
|
0.75
|
0.75
|
0.75
|
0.75
|
LA
|
1.63
|
1.57
|
1.57
|
1.51
| |
EP
|
523.00
|
523.00
|
523.00
|
523.00
| |
double
|
HA
|
0.76
|
0.76
|
0.76
|
0.76
|
LA
|
1.46
|
1.36
|
1.36
|
1.50
| |
EP
|
4.53E+06
|
4.53E+06
|
4.53E+06
|
4.53E+06
| |
Note:
Units - ULP (Units in the Last Place).Performance Graphs:
