How can I get my results faster?
Compiler Options
- Choose a good compiler
- e.g. programs compiled with Intel usually faster than GNU
- latest versions may be faster
- Think about compiler optimisation flags
-
- Coarse optimisation control:
-O0 — no optimisation
-O1 — some optimisation
-O2 — extensive optimisation
-O3 — aggressive optimisation
- Note: default optimisation is compiler-specific
- There are many additional flags to fine tune optimisation
- Warning: some optimisations may change results
See compiler man pages for details.