preconditioner_apply Module Reference

computes preconditioners, and implements methods to apply them currently used in qs_ot More...

Functions/Subroutines
subroutine, public	apply_preconditioner_fm (preconditioner_env, matrix_in, matrix_out)
	applies a previously created preconditioner to a full matrix
subroutine, public	apply_preconditioner_dbcsr (preconditioner_env, matrix_in, matrix_out)
	...

Detailed Description

computes preconditioners, and implements methods to apply them currently used in qs_ot

History

• [UB] 2009-05-13 Adding stable approximate inverse (full and sparse)

Author

Joost VandeVondele (09.2002)

Function/Subroutine Documentation

apply_preconditioner_fm()

subroutine, public preconditioner_apply::apply_preconditioner_fm	(	type(preconditioner_type)	preconditioner_env,
		type(cp_fm_type), intent(in)	matrix_in,
		type(cp_fm_type), intent(in)	matrix_out
	)

applies a previously created preconditioner to a full matrix

Parameters

preconditioner_env	...
matrix_in	...
matrix_out	...

Definition at line 52 of file preconditioner_apply.F.

apply_preconditioner_dbcsr()

subroutine, public preconditioner_apply::apply_preconditioner_dbcsr	(	type(preconditioner_type)	preconditioner_env,
		type(dbcsr_type)	matrix_in,
		type(dbcsr_type)	matrix_out
	)

...

Parameters

preconditioner_env	...
matrix_in	...
matrix_out	...

Definition at line 93 of file preconditioner_apply.F.

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