dbt_block Module Reference

Methods to operate on n-dimensional tensor blocks. More...

Functions/Subroutines
subroutine, public	dbt_iterator_start (iterator, tensor)
	Generalization of block_iterator_start for tensors. More...
subroutine, public	dbt_iterator_stop (iterator)
	Generalization of block_iterator_stop for tensors. More...
pure integer function, public	ndims_iterator (iterator)
	Number of dimensions. More...
subroutine, public	dbt_iterator_next_block (iterator, ind_nd, blk_size, blk_offset)
	iterate over nd blocks of an nd rank tensor, index only (blocks must be retrieved by calling dbt_get_block on tensor). More...
integer function, public	dbt_iterator_num_blocks (iterator)
	Generalization of block_iterator_num_blocks for tensors. More...
logical function, public	dbt_iterator_blocks_left (iterator)
	Generalization of block_iterator_blocks_left for tensors. More...
subroutine, public	destroy_block (block)
elemental logical function, public	checker_tr (row, column)
	Determines whether a transpose must be applied. More...

Detailed Description

Methods to operate on n-dimensional tensor blocks.

Author

Patrick Seewald

Function/Subroutine Documentation

dbt_iterator_start()

subroutine, public dbt_block::dbt_iterator_start	(	type(dbt_iterator_type), intent(out)	iterator,
		type(dbt_type), intent(in), target	tensor
	)

Generalization of block_iterator_start for tensors.

Author

Patrick Seewald

Definition at line 120 of file dbt_block.F.

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dbt_iterator_stop()

subroutine, public dbt_block::dbt_iterator_stop

(

type(dbt_iterator_type), intent(inout)

iterator

)

Generalization of block_iterator_stop for tensors.

Author

Patrick Seewald

Definition at line 133 of file dbt_block.F.

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ndims_iterator()

pure integer function, public dbt_block::ndims_iterator

(

type(dbt_iterator_type), intent(in)

iterator

)

Number of dimensions.

Note

specification function below must be defined before it is used in the source due to a bug in the IBM XL Fortran compiler (compilation fails)

Author

Patrick Seewald

Definition at line 145 of file dbt_block.F.

dbt_iterator_next_block()

subroutine, public dbt_block::dbt_iterator_next_block	(	type(dbt_iterator_type), intent(inout)	iterator,
		integer, dimension(ndims_iterator(iterator)), intent(out)	ind_nd,
		integer, dimension(ndims_iterator(iterator)), intent(out), optional	blk_size,
		integer, dimension(ndims_iterator(iterator)), intent(out), optional	blk_offset
	)

iterate over nd blocks of an nd rank tensor, index only (blocks must be retrieved by calling dbt_get_block on tensor).

Parameters

ind_nd	nd index of block
blk_size	blk size in each dimension
blk_offset	blk offset in each dimension

Author

Patrick Seewald

Definition at line 160 of file dbt_block.F.

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dbt_iterator_num_blocks()

integer function, public dbt_block::dbt_iterator_num_blocks

(

type(dbt_iterator_type), intent(in)

iterator

)

Generalization of block_iterator_num_blocks for tensors.

Author

Ole Schuett

Definition at line 184 of file dbt_block.F.

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dbt_iterator_blocks_left()

logical function, public dbt_block::dbt_iterator_blocks_left

(

type(dbt_iterator_type), intent(in)

iterator

)

Generalization of block_iterator_blocks_left for tensors.

Author

Patrick Seewald

Definition at line 196 of file dbt_block.F.

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destroy_block()

subroutine, public dbt_block::destroy_block

(

type(block_nd), intent(inout)

block

)

Author

Patrick Seewald

Definition at line 434 of file dbt_block.F.

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checker_tr()

elemental logical function, public dbt_block::checker_tr	(	integer, intent(in)	row,
		integer, intent(in)	column
	)

Determines whether a transpose must be applied.

Parameters

row	The absolute matrix row.
column	The absolute matrix column

Definition at line 452 of file dbt_block.F.

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