Changes

Sezar:

After gprof the project with the test data provided I learned the following:

(summery of gprof)

% cumulative self self total

time seconds seconds calls ms/call ms/call name

37.42 51.65 24.97 314400 0.08 0.08 zfunr_

12.69 60.12 8.47 314400 0.03 0.03 cfft_

As you can see, most the program's time is spent in the ordres() subroutine and zfunr() subroutine; both are localed in the fortran portion of the program (there is a c portion as well).

Furthermore, this program is already parallelized using openmp; which means it may be farther parallelized using cuda technology.

In these two subroutines (specially in orders()) there are a lot of nested loops, if statements, goto's, and even some sore of a search algorithm (in orders() only) that I'm certain it could be notably improved using cuda technology.