dbcsr_tas_mp_comm_from_matrix_sizes Function

private function dbcsr_tas_mp_comm_from_matrix_sizes(mp_comm, nblkrows, nblkcols) result(mp_comm_new)

Derive optimal cartesian process grid from matrix sizes. This ensures optimality for dense matrices only

Arguments

Type	Intent	Optional	Attributes		Name
type(mp_comm_type),	intent(in)			::	mp_comm
integer(kind=int_8),	intent(in)			::	nblkrows	total number of block rows total number of block columns
integer(kind=int_8),	intent(in)			::	nblkcols	total number of block rows total number of block columns

Return Value type(mp_comm_type)

MPI communicator