http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47495
--- Comment #12 from Joost VandeVondele <Joost.VandeVondele at pci dot uzh.ch> 2011-01-29 19:31:14 UTC --- (In reply to comment #9) > test.mod: test.f90 > gfortran -fsyntax-only test.f90 > > test.o: test.f90 test.mod > gfortran -c -O3 test.f90 > > could speed things up for large parallel projects since the next file can be > compiled (modded ?) as soon as the .mod of the previous one has been > generated, > there is no need to wait for the .o. Actually this seems to work rather well. I have been testing this, and for CP2K on a 48 core server, I get a 2-fold speedup for a fresh build. This really seems something to consider seriously.
