High Performance Computing

Common Optimisations

You may find some of the following optimisation flags rather useful.

PGI

-Mvect  
-Munroll  
-tp k8-32  
-O0 Zero optimisation. Basic block generated. kkkk sdsadlh asdohfr sfysoerfh
-O1 Local optimisation. Scheduling of blocks
-O2 Global optimisation. Also includes -O1
-O3 Aggresive global optimisation
-fast  
   
-Mbounds Reports out of bounds array during failure
-g  
-m  
-Minfo