[petsc-users] USE_HASH_TABLE

[Barry Smith]

  That code was just an experiment and doesn't work. 

  Barry

> On Mar 19, 2015, at 2:17 PM, Chung-Kan Huang <ckhuangf at gmail.com> wrote:
> 
> Hi,
> 
> I was looking for some performance enhancements around the linear solver area and I was curious about this USE_HASH_TABLE option.
> 
> I wonder what scale of improvement I should expect and I got follow error during my first attempt.
> 
> [0]PETSC ERROR: ---------------------  Stack Frames ------------------------------------
> [0]PETSC ERROR: Note: The EXACT line numbers in the stack are not available,
> [0]PETSC ERROR:       INSTEAD the line number of the start of the function
> [0]PETSC ERROR:       is given.
> [0]PETSC ERROR: [0] MatSetValuesBlocked_MPIBAIJ_HT line 470 /d/dev01/chungh/lib2/petsc-3.5.2/src/mat/impls/baij/mpi/mpibaij.c
> [0]PETSC ERROR: [0] MatSetValuesBlocked line 1636 /d/dev01/chungh/lib2/petsc-3.5.2/src/mat/interface/matrix.c
> [0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
> 
> 
> I wonder anything I didn't do right..
> 
> Thanks,
> 
> Kan
> 
> -- 
> Cheers
>