MATELEMENTAL#

“elemental” - A matrix type for dense matrices using the Elemental package Use ./configure –download-elemental to install PETSc to use Elemental

Options Database Keys#

  • -mat_type elemental - sets the matrix type to “elemental” during a call to MatSetFromOptions()

  • -pc_factor_mat_solver_type elemental - to use this direct solver with the option -pc_type lu

  • -mat_elemental_grid_height - sets Grid Height for 2D cyclic ordering of internal matrix

Note#

Note unlike most matrix formats, this format does not store all the matrix entries for a contiguous range of rows on an MPI rank. Use MatGetOwnershipIS() to determine what values are stored on the given rank.

See Also#

MATDENSE, MATSCALAPACK, MatGetOwnershipIS()

Level#

beginner

Location#

src/mat/impls/elemental/matelem.cxx


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Index of all manual pages