------- Comment #16 from jv244 at cam dot ac dot uk 2009-08-17 07:39 ------- (In reply to comment #15)
> > > > -flto needs about 35min compile time and 10.5Gb RAM. > > > > > > Doh. How does that compare to the all-CP2K in one file builds? > > > > an all-in-one-file-CP2K takes about 2.5Gb and 30min last time I tested. So > > it > > is mostly the memory increase that is really significant. > > Ok, that's interesting. I'm curious if compiling all-in-one CP2K with > -flto is any different. -flto wit hthe all-in-one CP2K fails, I guess it enable -fwhole-file automatically ? Since it looks like the same error: gfortran -O0 -march=native CP2K_2009-05-01.f90 -L/users/vondele/LAPACK/ -llapack_gfortran_4_4 -lblas_gfortran_4_4 Mem ~ 3.5Gb Time ~ 9m34.187 gfortran -O3 -march=native CP2K_2009-05-01.f90 -L/users/vondele/LAPACK/ -llapack_gfortran_4_4 -lblas_gfortran_4_4 Mem ~ 3.5Gb Time ~ 30m gfortran -flto -O3 -march=native CP2K_2009-05-01.f90 -L/users/vondele/LAPACK/ -llapack_gfortran_4_4 -lblas_gfortran_4_4 ICE on the PR40011 comment #40 (internal compiler error: in gfc_create_module_variable) thing. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41069
