Developer Reference
Visible to Intel only — GUID: GUID-5C9C18BE-BEE1-41C1-BEC6-10CBC56D9F8F
Modf
Computes a truncated integer value and remaining fraction part for each vector element.
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 | 2.19 | 0.60 | 0.49 | 0.40 |
LA | 0.75 | 0.60 | 0.48 | 0.40 | |
EP | 0.75 | 0.60 | 0.48 | 0.40 | |
double | HA | 1.23 | 1.17 | 0.97 | 0.75 |
LA | 1.23 | 1.17 | 0.97 | 0.75 | |
EP | 1.23 | 1.17 | 0.97 | 0.75 |
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 | 0.00 | 0.00 | 0.00 | 0.00 |
LA | 0.00 | 0.00 | 0.00 | 0.00 | |
EP | 0.00 | 0.00 | 0.00 | 0.00 | |
double | HA | 0.00 | 0.00 | 0.00 | 0.00 |
LA | 0.00 | 0.00 | 0.00 | 0.00 | |
EP | 0.00 | 0.00 | 0.00 | 0.00 |
NOTE:
Units - ULP (Units in the Last Place).
Performance Graphs:
Parent topic: Rounding