Measured Accuracy of All Complex VM Functions
Functions
|
Intel® Xeon® Processor E5-2680
|
Intel® Xeon® Processor E5-2699 v3
|
Intel® Xeon® Processor E5-2699 v4
|
Intel® Xeon® Gold 6148 Processor
| ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
single
|
double
|
single
|
double
|
single
|
double
|
single
|
double
| |||||||||||||||||
HA
|
LA
|
EP
|
HA
|
LA
|
EP
|
HA
|
LA
|
EP
|
HA
|
LA
|
EP
|
HA
|
LA
|
EP
|
HA
|
LA
|
EP
|
HA
|
LA
|
EP
|
HA
|
LA
|
EP
| |
Abs |
0.56
|
1.09
|
3.76E+03
|
0.81
|
1.54
|
3.88E+05
|
0.56
|
0.83
|
3.76E+03
|
0.81
|
0.91
|
3.88E+05
|
0.56
|
0.83
|
3.76E+03
|
0.81
|
0.91
|
3.88E+05
|
0.51
|
1.05
|
3.76E+03
|
0.81
|
0.91
|
2.37E+07
|
Acos |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
Acosh |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
Add |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
Arg |
0.72
|
2.53
|
3.69E+03
|
0.73
|
1.78
|
2.03E+07
|
0.72
|
2.33
|
3.69E+03
|
0.75
|
1.57
|
2.03E+07
|
0.72
|
2.33
|
3.69E+03
|
0.75
|
1.57
|
2.03E+07
|
0.72
|
2.33
|
3.69E+03
|
0.75
|
1.57
|
2.03E+07
|
Asin |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
Asinh |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
Atan |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
Atanh |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
CIS |
0.59
|
2.13
|
2.52E+03
|
0.50
|
3.12
|
6.14E+07
|
0.59
|
2.17
|
2.52E+03
|
0.50
|
2.74
|
6.14E+07
|
0.59
|
2.17
|
2.52E+03
|
0.50
|
2.74
|
6.14E+07
|
0.59
|
2.17
|
2.52E+03
|
0.51
|
2.74
|
6.14E+07
|
Conj |
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
0.00
|
Cos |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
Cosh |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
Div |
0.50
|
0.50
|
4.39E+03
|
0.50
|
0.50
|
2.17
|
0.50
|
0.50
|
4.39E+03
|
0.50
|
0.50
|
2.50
|
0.50
|
0.50
|
4.39E+03
|
0.50
|
0.50
|
2.50
|
0.50
|
0.50
|
583.00
|
0.50
|
0.50
|
655.00
|
Exp |
0.58
|
1.57
|
1.57
|
0.50
|
1.75
|
1.75
|
0.58
|
1.57
|
1.57
|
0.50
|
1.75
|
1.75
|
0.58
|
1.57
|
1.57
|
0.50
|
1.75
|
1.75
|
0.58
|
1.57
|
1.57
|
0.50
|
1.75
|
1.75
|
Ln |
0.71
|
2.19
|
3.61E+03
|
0.71
|
2.09
|
1.97E+07
|
0.71
|
2.12
|
3.61E+03
|
0.71
|
2.09
|
1.97E+07
|
0.71
|
2.12
|
3.61E+03
|
0.71
|
2.09
|
1.97E+07
|
0.71
|
2.19
|
3.61E+03
|
0.71
|
2.09
|
1.97E+07
|
Log10 |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
Mul |
0.50
|
0.50
|
0.98
|
0.50
|
0.50
|
0.98
|
0.50
|
0.50
|
0.98
|
0.50
|
0.50
|
0.98
|
0.50
|
0.50
|
0.98
|
0.50
|
0.50
|
0.98
|
0.50
|
0.50
|
0.98
|
0.50
|
0.50
|
0.98
|
MulByConj |
0.50
|
0.50
|
0.99
|
0.50
|
0.50
|
0.97
|
0.50
|
0.50
|
0.99
|
0.50
|
0.50
|
0.98
|
0.50
|
0.50
|
0.99
|
0.50
|
0.50
|
0.98
|
0.50
|
0.50
|
0.99
|
0.50
|
0.50
|
0.98
|
Pow |
0.50
|
0.50
|
0.50
|
0.00
|
0.00
|
0.00
|
0.50
|
0.50
|
0.50
|
0.00
|
0.00
|
0.00
|
0.50
|
0.50
|
0.50
|
0.00
|
0.00
|
0.00
|
0.50
|
0.50
|
0.50
|
0.00
|
0.00
|
0.00
|
Powx |
0.50
|
0.50
|
0.50
|
0.00
|
0.00
|
0.00
|
0.50
|
0.50
|
0.50
|
0.00
|
0.00
|
0.00
|
0.50
|
0.50
|
0.50
|
0.00
|
0.00
|
0.00
|
0.50
|
0.50
|
0.50
|
0.00
|
0.00
|
0.00
|
Sin |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
Sinh |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
Sqrt |
0.51
|
1.97
|
1.97
|
0.50
|
2.05
|
2.05
|
0.50
|
1.97
|
1.97
|
0.50
|
2.05
|
2.05
|
0.50
|
1.97
|
1.97
|
0.50
|
2.05
|
2.05
|
0.50
|
1.97
|
1.97
|
0.50
|
1.47
|
1.47
|
Sub |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
Tan |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
Tanh |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
Notes:
- Units - CPE (Clocks per Element)
- Data - vectors of 1000 elements with random generated numbers
- All data was collected with 64-bit libraries