[petsc-users] Use MPIAIJ, but receive help information of seqaij

张国熙 altriaex86 at gmail.com
Mon Jun 2 02:13:12 CDT 2014

Hi, all

Recently I'm trying to improve the performance of my program, so I add
-help option to see options available. I think I use MPIAIJ type of MAT,
but I receive information of SEQAIJ.

Is it means actually I am using a sequential matrix type?
If not, how could I get information of MPIAIJ to improve performance?

Code of generating mate
MatSetSizes(A,PETSC_DECIDE, PETSC_DECIDE,size,size);

Code of getting information
char  common_options[] = "-help  -st_ksp_type preonly -st_pc_type lu
-st_pc_factor_mat_solver_package mumps -mat_mumps_icntl_28 2
-mat_mumps_icntl_29 2";

  ierr = PetscOptionsInsertString(common_options);CHKERRQ(ierr);

Thank you very much
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