[petsc-users] compare: performance of petsc_3.3p2 and petsc_dev-r24197

[Aron Ahmadia]

Can you re-run both codes with: -log_summary please?

A

On Wed, Aug 22, 2012 at 10:43 AM, Feng Li <fengshen186 at gmail.com> wrote:
> The performance of petsc_3.3p2 is five times faster than petsc_dev-r24197.
> Why?
>
> It is tested with pflotran example problem 100x100x100.
> config parameter：--with-mpi=0 --CC=gcc --FC=gfortran --CCFLAGS="-g -O2"
> --FCFLAGS="-g -O2" --blas-lapack-dir=$MKLROOT
>
> detail time:
>                       petsc_3.3p2          petsc_dev24197
> walltime(sec)        28.116                 110.25
>
> Thank you!

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