dbcsr_data_types Module

Types related to DBCSR data area

Uses

Variables

Type	Visibility	Attributes		Name		Initial
character(len=*),	private,	parameter	::	moduleN	=	'dbcsr_data_types'
type(dbcsr_memtype_type),	public,	parameter	::	dbcsr_memtype_default	=	dbcsr_memtype_type(pool=Null())
integer,	public,	parameter	::	dbcsr_type_real_4	=	1
integer,	public,	parameter	::	dbcsr_type_real_8	=	3
integer,	public,	parameter	::	dbcsr_type_complex_4	=	5
integer,	public,	parameter	::	dbcsr_type_complex_8	=	7
integer,	public,	parameter	::	dbcsr_type_real_4_2d	=	9
integer,	public,	parameter	::	dbcsr_type_real_8_2d	=	11
integer,	public,	parameter	::	dbcsr_type_complex_4_2d	=	13
integer,	public,	parameter	::	dbcsr_type_complex_8_2d	=	15
integer,	public,	parameter	::	dbcsr_type_int_4	=	17
integer,	public,	parameter	::	dbcsr_type_int_8	=	19
integer,	public,	parameter	::	dbcsr_type_real_default	=	dbcsr_type_real_8
integer,	public,	parameter	::	dbcsr_type_complex_default	=	dbcsr_type_complex_8

Derived Types

type, public :: dbcsr_scalar_type

Stores a scalar in any of the supported data types.

Components

Type	Visibility	Attributes		Name		Initial
real(kind=real_4),	public		::	r_sp	=	-1.0_real_4	stores real values in single precision
real(kind=real_8),	public		::	r_dp	=	-1.0_real_8	stores real values in double precision
complex(kind=real_4),	public		::	c_sp	=	(-1.0_real_4, -1.0_real_4)	stores complex values in single precision
complex(kind=real_8),	public		::	c_dp	=	(-1.0_real_8, -1.0_real_8)	stores complex values in double precision
integer,	public		::	data_type	=	-1	which of the data types is actually used

type, public :: dbcsr_data_obj

Components

Type	Visibility	Attributes		Name		Initial
type(dbcsr_data_area_type),	public,	POINTER	::	d	=>	Null()

type, public :: dbcsr_mempool_type

Memory related types

Components

Type	Visibility	Attributes		Name		Initial
type(dbcsr_mempool_entry_type),	public,	POINTER	::	root	=>	Null()
integer,	public		::	capacity	=	1

type, public :: dbcsr_mempool_entry_type

Components

Type	Visibility	Attributes		Name		Initial
type(dbcsr_data_obj),	public		::	area	=	dbcsr_data_obj()
type(dbcsr_mempool_entry_type),	public,	POINTER	::	next	=>	Null()

type, public :: dbcsr_memtype_type

Components

Type	Visibility	Attributes		Name		Initial
logical,	public		::	mpi	=	.FALSE.
logical,	public		::	acc_hostalloc	=	.FALSE.
logical,	public		::	acc_devalloc	=	.FALSE.
type(acc_stream_type),	public		::	acc_stream	=	acc_stream_type()
type(dbcsr_mempool_type),	public,	POINTER	::	pool	=>	Null()
real(kind=dp),	public		::	oversize_factor	=	1.0

type, public :: dbcsr_data_area_type

Stores actual data

Components

Type	Visibility	Attributes		Name		Initial
integer(kind=int_4),	public,	DIMENSION(:), POINTER, CONTIGUOUS	::	i4	=>	Null()
integer(kind=int_8),	public,	DIMENSION(:), POINTER, CONTIGUOUS	::	i8	=>	Null()
real(kind=real_4),	public,	DIMENSION(:), POINTER, CONTIGUOUS	::	r_sp	=>	Null()	stores real values in single precision
real(kind=real_8),	public,	DIMENSION(:), POINTER, CONTIGUOUS	::	r_dp	=>	Null()	stores real values in double precision
complex(kind=real_4),	public,	DIMENSION(:), POINTER, CONTIGUOUS	::	c_sp	=>	Null()	stores complex values in single precision
complex(kind=real_8),	public,	DIMENSION(:), POINTER, CONTIGUOUS	::	c_dp	=>	Null()	stores complex values in double precision
real(kind=real_4),	public,	DIMENSION(:, :), POINTER	::	r2_sp	=>	Null()
real(kind=real_8),	public,	DIMENSION(:, :), POINTER	::	r2_dp	=>	Null()
complex(kind=real_4),	public,	DIMENSION(:, :), POINTER	::	c2_sp	=>	Null()
complex(kind=real_8),	public,	DIMENSION(:, :), POINTER	::	c2_dp	=>	Null()
integer,	public		::	ref_size	=	-1	last data element in array actually referenced
integer,	public		::	refcount	=	-1	reference counter for current structure
integer,	public		::	id	=	-1
type(dbcsr_memtype_type),	public		::	memory_type	=	dbcsr_memtype_default	type of memory where data lives
integer,	public		::	data_type	=	-1	which of the data types is actually used
type(acc_devmem_type),	public		::	acc_devmem	=	acc_devmem_type()
type(acc_event_type),	public		::	acc_ready	=	acc_event_type()

Functions

public function dbcsr_datatype_sizeof(datatype) result(size)

Helper-routine, returns size of given datatype in terms of bytes.

Arguments

Type	Intent	Optional	Attributes		Name
integer,	intent(in)			::	datatype

Return Value integer