COMPARISON of g77 Fortran Compiler with the pgf90 Compiler of Portland Group

Program POATDSE


  Compiler   Options   Time
 g77 -O2  17m  51s
 f77 -O2  17m  48s
 pgf90 -O2   14m  15s
 pgf90  -O2 -Munroll -tp p6  -Mnoframe  7m    10s
 pgf90 -O2 -Munroll -tp p6 -Mnoframe -Mvect  7m    12s

COMPARISON of g77 Fortran Compiler with the pgf90 Compiler of Portland Group

Program POMULT



 
     Compiler     Options     Time
 fort77  -O2  8m  5s
 g77  -O2  7m  48s
 mpi(g77)  -O2  8m  12s
 pgf90  -O2 -Munroll -tp p6 
 -Mnoframe
 6m  57s
 pgf90  -O2 -Munroll -tp p6
 -Mnoframe -Mvect
 7m 28s
 pgf90  -O2  7m 6s