fossil_csr_matrix

Source: src/lib/fossil_csr_matrix.f90

Dependencies

Contents

• csr_matrix_t
• csr_initialize
• csr_destroy
• csr_append
• grow_capacity
• csr_finalize
• sort_and_coalesce
• csr_multiply_vector
• csr_get_nrows
• csr_get_ncols
• csr_get_nnz
• csr_row_sum
• csr_get_value
• csr_is_symmetric

Variables

Name	Type	Attributes	Description
CSR_STATUS_OK	integer(kind=I4P)	parameter
CSR_STATUS_BAD_INPUT	integer(kind=I4P)	parameter
CSR_STATUS_OUT_OF_RANGE	integer(kind=I4P)	parameter
CSR_INITIAL_NNZ_PER_ROW	integer(kind=I4P)	parameter

Derived Types

csr_matrix_t

Components

Name	Type	Attributes	Description
n_rows	integer(kind=I4P)
n_cols	integer(kind=I4P)
nnz	integer(kind=I4P)
row_ptr	integer(kind=I4P)	allocatable
col_idx	integer(kind=I4P)	allocatable
val	real(kind=R8P)	allocatable
is_finalized	logical
build_row_counts	integer(kind=I4P)	allocatable
build_capacity	integer(kind=I4P)
build_col_idx	integer(kind=I4P)	allocatable
build_val	real(kind=R8P)	allocatable

Type-Bound Procedures

Name	Attributes	Description
initialize	pass(self)
destroy	pass(self)
append	pass(self)
finalize	pass(self)
get_nrows	pass(self)
get_ncols	pass(self)
get_nnz	pass(self)
multiply_vector	pass(self)
row_sum	pass(self)
get_value	pass(self)
is_symmetric	pass(self)

Subroutines

csr_initialize

subroutine csr_initialize(self, n_rows, n_cols, status)

Arguments

Name	Type	Intent	Attributes	Description
self	class(csr_matrix_t)	inout
n_rows	integer(kind=I4P)	in
n_cols	integer(kind=I4P)	in
status	integer(kind=I4P)	out	optional

Call graph

csr_destroy

subroutine csr_destroy(self)

Arguments

Name	Type	Intent	Attributes	Description
self	class(csr_matrix_t)	inout

csr_append

subroutine csr_append(self, row, col, value, status)

Arguments

Name	Type	Intent	Attributes	Description
self	class(csr_matrix_t)	inout
row	integer(kind=I4P)	in
col	integer(kind=I4P)	in
value	real(kind=R8P)	in
status	integer(kind=I4P)	out	optional

Call graph

grow_capacity

subroutine grow_capacity(self)

Arguments

Name	Type	Intent	Attributes	Description
self	type(csr_matrix_t)	inout

Call graph

csr_finalize

subroutine csr_finalize(self, status)

Arguments

Name	Type	Intent	Attributes	Description
self	class(csr_matrix_t)	inout
status	integer(kind=I4P)	out	optional

Call graph

sort_and_coalesce

Attributes: pure

subroutine sort_and_coalesce(col, val, n, unique)

Arguments

Name	Type	Intent	Attributes	Description
col	integer(kind=I4P)	inout
val	real(kind=R8P)	inout
n	integer(kind=I4P)	in
unique	integer(kind=I4P)	out

Call graph

csr_multiply_vector

subroutine csr_multiply_vector(self, x, y, status)

Arguments

Name	Type	Intent	Attributes	Description
self	class(csr_matrix_t)	in
x	real(kind=R8P)	in
y	real(kind=R8P)	out
status	integer(kind=I4P)	out	optional

Functions

csr_get_nrows

Attributes: pure

Returns: integer(kind=I4P)

function csr_get_nrows(self) result(n)

Arguments

Name	Type	Intent	Attributes	Description
self	class(csr_matrix_t)	in

csr_get_ncols

Attributes: pure

Returns: integer(kind=I4P)

function csr_get_ncols(self) result(n)

Arguments

Name	Type	Intent	Attributes	Description
self	class(csr_matrix_t)	in

csr_get_nnz

Attributes: pure

Returns: integer(kind=I4P)

function csr_get_nnz(self) result(n)

Arguments

Name	Type	Intent	Attributes	Description
self	class(csr_matrix_t)	in

csr_row_sum

Attributes: pure

Returns: real(kind=R8P)

function csr_row_sum(self, row) result(s)

Arguments

Name	Type	Intent	Attributes	Description
self	class(csr_matrix_t)	in
row	integer(kind=I4P)	in

csr_get_value

Attributes: pure

Returns: real(kind=R8P)

function csr_get_value(self, row, col) result(v)

Arguments

Name	Type	Intent	Attributes	Description
self	class(csr_matrix_t)	in
row	integer(kind=I4P)	in
col	integer(kind=I4P)	in

csr_is_symmetric

Returns: logical

function csr_is_symmetric(self, tol) result(yes)

Arguments

Name	Type	Intent	Attributes	Description
self	class(csr_matrix_t)	in
tol	real(kind=R8P)	in

Call graph