negf_subgroup_types Module Reference

Environment for NEGF based quantum transport calculations. More...

Data Types
type	negf_subgroup_env_type
	Parallel (sub)group environment. More...

Functions/Subroutines
subroutine, public	negf_sub_env_create (sub_env, negf_control, blacs_env_global, blacs_grid_layout, blacs_repeatable)
	Split MPI communicator to create a set of parallel (sub)groups.
subroutine, public	negf_sub_env_release (sub_env)
	Release a parallel (sub)group environment.

Detailed Description

Environment for NEGF based quantum transport calculations.

Author

Sergey Chulkov

Function/Subroutine Documentation

negf_sub_env_create()

subroutine, public negf_subgroup_types::negf_sub_env_create	(	type(negf_subgroup_env_type), intent(out)	sub_env,
		type(negf_control_type), pointer	negf_control,
		type(cp_blacs_env_type), pointer	blacs_env_global,
		integer, intent(in)	blacs_grid_layout,
		logical, intent(in)	blacs_repeatable
	)

Split MPI communicator to create a set of parallel (sub)groups.

Parameters

sub_env	parallel (sub)group environment (initialised on exit)
negf_control	NEGF input control
blacs_env_global	BLACS environment for all the processors
blacs_grid_layout	BLACS grid layout
blacs_repeatable	BLACS repeatable layout

History

• 06.2017 created [Sergey Chulkov]

Definition at line 68 of file negf_subgroup_types.F.

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negf_sub_env_release()

subroutine, public negf_subgroup_types::negf_sub_env_release

(

type(negf_subgroup_env_type), intent(inout)

sub_env

)

Release a parallel (sub)group environment.

Parameters

sub_env

parallel (sub)group environment to release

History

• 06.2017 created [Sergey Chulkov]

Definition at line 128 of file negf_subgroup_types.F.

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