Yes, I replaced all the compiler flags by -O3. ================================ ?Keita Teranishi ?Scientific Library Group ?Cray, Inc. ?keita at cray.com ================================
-----Original Message----- From: Jed Brown [mailto:five...@gmail.com] On Behalf Of Jed Brown Sent: Friday, August 27, 2010 4:16 PM To: Keita Teranishi; For users of the development version of PETSc Subject: Re: [petsc-dev] [GPU] Performance on Fermi On Fri, 27 Aug 2010 16:06:30 -0500, Keita Teranishi <keita at cray.com> wrote: > Barry, > > The CPU timing I reported was after recompiling the code (I removed > PETSC_USE_DEBUG and GDB macros from petscconf.h). Unless you were manually overriding compiler flags, it still wasn't optimized. Please just reconfigure a new PETSC_ARCH --with-debugging=0. It's as easy as foo-dbg/conf/reconfigure-foo-dbg.py --with-debugging=0 PETSC_ARCH=foo-opt make PETSC_ARCH=foo-opt Jed
