optimizing the code

newcfd

[这个贴子最后由newcfd在 2007/11/10 06:35am 第 1 次编辑]

In order to optimize the code, people need to know  where the code uses most CPU time.
gprof can be used to find that out. Steps to use it:
1. add  option  -pg to  CFLAGS, CXXFLAGS and LINK  in make file
2. make clean and recompile your code
3. run your code(for example solver)  and you will get  a file gmon.out
4.  type command "gprof solver | less"   to see the info