One more thing to note here: The current binaries of GCC (4.5.x) available at hpc.sourceforge.net are quite a bit slower than the earlier version 4.x (where x < 5) compilers. Derek and I discovered this recently and reverted our compilers back to version 4.2. We haven't really looked into it much but the new compilers compiled about 30-50% slower than the old compilers. The good news is that the run time was about the same or slightly faster with the new compilers. For us, compilation time mattered more on our laptops than performance but just be aware of the difference.
Cody On Jun 10, 2010, at 1:23 PM, Derek Gaston wrote: > BTW: We highly recommend using the GCC compilers from here: > http://hpc.sourceforge.net/ > > Then compiling your own version of MPI (we use MPICH2) using these compilers. > > Then compiling PetsC then libMesh. > > This is what we do for all of our Mac laptops (on our workstations we use the > Intel compilers... but basically go through the same steps). In total we > manage over 30 Mac development machines that use libMesh all day long and > this setup works. > > Derek > > On Jun 10, 2010, at 12:09 PM, Roy Stogner wrote: > >> >> On Thu, 10 Jun 2010, Anna-Lena Gerner wrote: >> >>> I am trying to install libmesh with petsc and openmpi on OS X 10.6. >> >> What underlying compilers are your mpicc and mpicxx using? A coworker >> here recently discovered a Macports gcc problem that affected >> exception handling + dynamic linking in his application in OSX 10.6; >> I wonder if there might not be some RTTI + dynamic linking bug as >> well. >> --- >> Roy >> >> ------------------------------------------------------------------------------ >> ThinkGeek and WIRED's GeekDad team up for the Ultimate >> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >> lucky parental unit. See the prize list and enter to win: >> http://p.sf.net/sfu/thinkgeek-promo >> _______________________________________________ >> Libmesh-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/libmesh-users > > > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit. See the prize list and enter to win: > http://p.sf.net/sfu/thinkgeek-promo > _______________________________________________ > Libmesh-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/libmesh-users ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
