#include <SF_abstract_vector.h>

Collaboration diagram for SF::abstract_vector< T, S >:

Public Types
enum	ltype { algebraic, nodal, elemwise, unset }

Public Member Functions
virtual	~abstract_vector ()=default

virtual void	init (const meshdata< mesh_int_t, mesh_real_t > &imesh, int idpn, ltype inp_layout)=0

virtual void	init (const abstract_vector< T, S > &vec)=0

virtual void	init (int igsize, int ilsize, int idpn=1, ltype ilayout=unset)=0

std::tuple< int, int >	init_common (const meshdata< mesh_int_t, mesh_real_t > &imesh, int idpn, ltype inp_layout)

virtual void	set (const vector< T > &idx, const vector< S > &vals, const bool additive=false)=0

virtual void	set (const vector< T > &idx, const S val)=0

virtual void	set (const S val)=0

virtual void	set (const T idx, const S val)=0

virtual void	get (const vector< T > &idx, S *out)=0

virtual S	get (const T idx)=0

virtual void	operator*= (const S sca)=0

virtual void	operator/= (const S sca)=0

virtual void	operator*= (const abstract_vector< T, S > &vec)=0

virtual void	add_scaled (const abstract_vector< T, S > &vec, S k)=0

virtual void	operator+= (const abstract_vector< T, S > &vec)=0

virtual void	operator-= (const abstract_vector< T, S > &vec)=0

virtual void	operator+= (S c)=0

virtual void	operator= (const vector< S > &rhs)=0

virtual void	operator= (const abstract_vector< T, S > &rhs)=0

virtual void	shallow_copy (const abstract_vector< T, S > &v)=0

virtual void	deep_copy (const abstract_vector< T, S > &v)=0

virtual void	overshadow (const abstract_vector< T, S > &sub, bool member, int offset, int sz, bool share)=0

virtual T	lsize () const =0

virtual T	gsize () const =0

virtual void	get_ownership_range (T &start, T &stop) const =0

virtual S *	ptr ()=0

virtual const S *	const_ptr () const =0

virtual void	release_ptr (S *&p)=0

virtual void	const_release_ptr (const S *&p) const =0

virtual S	mag () const =0

virtual S	sum () const =0

virtual S	min () const =0

virtual S	dot (const abstract_vector< T, S > &v) const =0

virtual bool	is_init () const =0

virtual std::string	to_string () const =0

virtual bool	equals (const abstract_vector< T, S > &rhs) const =0

virtual void	finish_assembly ()=0

virtual void	forward (abstract_vector< T, S > &out, scattering &sc, bool add=false)=0

virtual void	backward (abstract_vector< T, S > &out, scattering &sc, bool add=false)=0

virtual void	apply_scattering (scattering &sc, bool fwd)=0

size_t	write_ascii (const char *file, bool write_header)

template<typename V >
size_t	write_binary (FILE *fd)
	Write a vector to HD in binary. File descriptor is already set up. More...

template<typename V >
size_t	write_binary (std::string file)
	write binary. Open file descriptor myself. More...

template<typename V >
size_t	read_binary (FILE *fd)

template<typename V >
size_t	read_binary (std::string file)

size_t	read_ascii (FILE *fd)

size_t	read_ascii (std::string file)

Public Attributes
const meshdata< mesh_int_t, mesh_real_t > *	mesh = NULL
	the connected mesh More...

int	dpn = 0
	d.o.f. per mesh vertex. More...

ltype	layout = unset
	used vector layout (nodal, algebraic, unset) More...

Detailed Description

template<class T, class S>
class SF::abstract_vector< T, S >

An abstract class representing a (possibly distributed) vector.

It is connected to a mesh and offers some convenience features w.r.t. setup and function calls. This is an interface definition, for concrete implementations see the petsc_vector or ginkgo_vector classes.

Template Parameters

T	Integer type (indices).
S	Floating point type (values).

See also: ginkgo_vector; petsc_vector

Definition at line 54 of file SF_abstract_vector.h.

Member Enumeration Documentation

◆ ltype

template<class T, class S>

enum SF::abstract_vector::ltype

Enumeration of layout types for the vector

Enumerator
algebraic
nodal
elemwise
unset

Definition at line 59 of file SF_abstract_vector.h.

Constructor & Destructor Documentation

◆ ~abstract_vector()

template<class T, class S>

virtual SF::abstract_vector< T, S >::~abstract_vector ( )

virtualdefault

Default destructor

Member Function Documentation

◆ add_scaled()

template<class T, class S>

virtual void SF::abstract_vector< T, S >::add_scaled	(	const abstract_vector< T, S > &	vec,
		S	k
	)

pure virtual

Adds vec scaled by k to this vector (i.e., BLAS axpy).

Parameters

vec	The second vector to scale and multiply this vector with.
k	The scalar.

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◆ apply_scattering()

template<class T, class S>

virtual void SF::abstract_vector< T, S >::apply_scattering	(	scattering &	sc,
		bool	fwd
	)

pure virtual

Apply the scattering sc to this vector.

Parameters

sc	The scattering class.
fwd	Use forward or backwdard scattering.

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◆ backward()

template<class T, class S>

virtual void SF::abstract_vector< T, S >::backward	(	abstract_vector< T, S > &	out,
		scattering &	sc,
		bool	add = `false`
	)

pure virtual

Backward scattering. This object is input (from).

Parameters

out	Scatter to.
sc	The scattering class.
add	Use additive scattering or overwrite.

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◆ const_ptr()

template<class T, class S>

virtual const S* SF::abstract_vector< T, S >::const_ptr ( ) const

pure virtual

Get a const host pointer to the local data. Use const_release_ptr when done.

Returns: a const host pointer to the local data.

See also: const_release_ptr

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◆ const_release_ptr()

template<class T, class S>

virtual void SF::abstract_vector< T, S >::const_release_ptr ( const S *& p ) const

pure virtual

Release a const pointer to local data

Parameters

p	the const pointer to release

See also: const_ptr

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◆ deep_copy()

template<class T, class S>

virtual void SF::abstract_vector< T, S >::deep_copy ( const abstract_vector< T, S > & v )

pure virtual

Deep copy into this vector from another abstract_vector.

Parameters

v	The vector to copy from.

: unify with operator= ?

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◆ dot()

template<class T, class S>

virtual S SF::abstract_vector< T, S >::dot ( const abstract_vector< T, S > & v ) const

pure virtual

Compute the dot product of this vector and the vector v.

Parameters

v	The other vector used in the dot product.

Returns: the dot product of this vector and the vector v.

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◆ equals()

template<class T, class S>

virtual bool SF::abstract_vector< T, S >::equals ( const abstract_vector< T, S > & rhs ) const

pure virtual

Whether the this vector and rhs are equal.

Returns: whether the this vector and rhs are equal.

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◆ finish_assembly()

template<class T, class S>

virtual void SF::abstract_vector< T, S >::finish_assembly ( )

pure virtual

Mark the assembly as finished.

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◆ forward()

template<class T, class S>

virtual void SF::abstract_vector< T, S >::forward	(	abstract_vector< T, S > &	out,
		scattering &	sc,
		bool	add = `false`
	)

pure virtual

Forward scattering. This object is input (from).

Parameters

out	Scatter to.
sc	The scattering class.
add	Use additive scattering or overwrite.

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◆ get() [1/2]

template<class T, class S>

virtual void SF::abstract_vector< T, S >::get	(	const vector< T > &	idx,
		S *	out
	)

pure virtual

Get the values at the requested indices

Parameters

idx	The indices to get.
out	The values at the requested indices.

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◆ get() [2/2]

template<class T, class S>

virtual S SF::abstract_vector< T, S >::get ( const T idx )

pure virtual

Get the value of one index

Parameters

idx	The index to get.

Returns: the requested value

◆ get_ownership_range()

template<class T, class S>

virtual void SF::abstract_vector< T, S >::get_ownership_range	(	T &	start,
		T &	stop
	)		const

pure virtual

Get the range of indices owned by this processor.

Parameters

start	the first index owned.
stop	one more than the last index owned.

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◆ gsize()

template<class T, class S>

virtual T SF::abstract_vector< T, S >::gsize ( ) const

pure virtual

Get the global size.

Returns: the global size.

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◆ init() [1/3]

template<class T, class S>

virtual void SF::abstract_vector< T, S >::init	(	const meshdata< mesh_int_t, mesh_real_t > &	imesh,
		int	idpn,
		ltype	inp_layout
	)

pure virtual

Init the vector dimensions based on a give mesh.

Parameters

imesh	The mesh defining the parallel layout of the vector.
idpn	The number of d.o.f. per mesh vertex.
inp_layout	The vector layout.

◆ init() [2/3]

template<class T, class S>

virtual void SF::abstract_vector< T, S >::init ( const abstract_vector< T, S > & vec )

pure virtual

Initialize a vector from the setup of another given vector.

Parameters

vec	Vector to replicate the setup from.

◆ init() [3/3]

template<class T, class S>

virtual void SF::abstract_vector< T, S >::init	(	int	igsize,
		int	ilsize,
		int	idpn = `1`,
		ltype	ilayout = `unset`
	)

pure virtual

Initialize a vector directly with set sizes.

Parameters

igsize	Global size
ilsize	Local size
idpn	Number of d.o.f. used per mesh node
ilayout	Vector layout w.r.t. used mesh.

◆ init_common()

template<class T, class S>

std::tuple<int, int> SF::abstract_vector< T, S >::init_common	(	const meshdata< mesh_int_t, mesh_real_t > &	imesh,
		int	idpn,
		ltype	inp_layout
	)

inline

Non backend-specific vector initialization based on a mesh.

Parameters

imesh	The mesh defining the parallel layout of the vector.
idpn	The number of d.o.f. per mesh vertex.
inp_layout	The vector layout.

Returns: a tuple with computed sizes N and n.

Definition at line 105 of file SF_abstract_vector.h.

◆ is_init()

template<class T, class S>

virtual bool SF::abstract_vector< T, S >::is_init ( ) const

pure virtual

Whether the vector is initialized.

Returns: whether the vector is initialized.

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◆ lsize()

template<class T, class S>

virtual T SF::abstract_vector< T, S >::lsize ( ) const

pure virtual

Get the local size.

Returns: the local size.

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◆ mag()

template<class T, class S>

virtual S SF::abstract_vector< T, S >::mag ( ) const

pure virtual

Compute the L2 norm of this vector.

Returns: the L2 norm of this vector.

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◆ min()

template<class T, class S>

virtual S SF::abstract_vector< T, S >::min ( ) const

pure virtual

Find the minimum value of this vector.

Returns: the minimum value of this vector.

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◆ operator*=() [1/2]

template<class T, class S>

virtual void SF::abstract_vector< T, S >::operator*= ( const S sca )

pure virtual

Convenient operator overload to multiply the vector by a scalar.

Parameters

sca	The scalar to multiply the vector by.

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◆ operator*=() [2/2]

template<class T, class S>

virtual void SF::abstract_vector< T, S >::operator*= ( const abstract_vector< T, S > & vec )

pure virtual

Convenient operator overload to multiply the vector by another.

Parameters

vec	The second vector to multiply this vector with.

◆ operator+=() [1/2]

template<class T, class S>

virtual void SF::abstract_vector< T, S >::operator+= ( const abstract_vector< T, S > & vec )

pure virtual

Convenient operator overload to add the vector with another.

Parameters

vec	The second vector to add this vector with.

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◆ operator+=() [2/2]

template<class T, class S>

virtual void SF::abstract_vector< T, S >::operator+= ( S c )

pure virtual

Convenient operator overload to add a scalar to this vector (vector shift).

Parameters

c	The scalar to add.

◆ operator-=()

template<class T, class S>

virtual void SF::abstract_vector< T, S >::operator-= ( const abstract_vector< T, S > & vec )

pure virtual

Convenient operator overload to substract the vector by another.

Parameters

vec	The second vector to substract this vector with.

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◆ operator/=()

template<class T, class S>

virtual void SF::abstract_vector< T, S >::operator/= ( const S sca )

pure virtual

Convenient operator overload to divide the vector by a scalar.

Parameters

sca	The scalar to divide the vector by.

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◆ operator=() [1/2]

template<class T, class S>

virtual void SF::abstract_vector< T, S >::operator= ( const vector< S > & rhs )

pure virtual

Deep copy into this vector from a standard (CPU-based) vector.

Parameters

rhs	The vector to copy from.

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◆ operator=() [2/2]

template<class T, class S>

virtual void SF::abstract_vector< T, S >::operator= ( const abstract_vector< T, S > & rhs )

pure virtual

Deep copy into this vector from another abstract_vector.

Parameters

rhs	The vector to copy from.

◆ overshadow()

template<class T, class S>

virtual void SF::abstract_vector< T, S >::overshadow	(	const abstract_vector< T, S > &	sub,
		bool	member,
		int	offset,
		int	sz,
		bool	share
	)

pure virtual

Create a subvector which is defined on a superset of procs and has the same layout

Processes not part of the original owner set will have no data

Parameters

sub	the vector on the subnodes
member	true if the process is part of the original vector
offset	offset of new vector into original
sz	number of entries to extract from original, -1=all
share	use the same memory

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◆ ptr()

template<class T, class S>

virtual S* SF::abstract_vector< T, S >::ptr ( )

pure virtual

Get a host pointer to the local data. Use release_ptr when done.

Returns: a host pointer to the local data.

See also: release_ptr

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◆ read_ascii() [1/2]

template<class T, class S>

size_t SF::abstract_vector< T, S >::read_ascii ( FILE * fd )

inline

Definition at line 607 of file SF_abstract_vector.h.

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◆ read_ascii() [2/2]

template<class T, class S>

size_t SF::abstract_vector< T, S >::read_ascii ( std::string file )

inline

Definition at line 618 of file SF_abstract_vector.h.

◆ read_binary() [1/2]

template<class T, class S>

template<typename V >

size_t SF::abstract_vector< T, S >::read_binary ( FILE * fd )

inline

Definition at line 559 of file SF_abstract_vector.h.

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◆ read_binary() [2/2]

template<class T, class S>

template<typename V >

size_t SF::abstract_vector< T, S >::read_binary ( std::string file )

inline

Definition at line 578 of file SF_abstract_vector.h.

◆ release_ptr()

template<class T, class S>

virtual void SF::abstract_vector< T, S >::release_ptr ( S *& p )

pure virtual

Release a pointer to local data

Parameters

p	the pointer to release

See also: ptr

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◆ set() [1/4]

template<class T, class S>

virtual void SF::abstract_vector< T, S >::set	(	const vector< T > &	idx,
		const vector< S > &	vals,
		const bool	additive = `false`
	)

pure virtual

Set the vector values.

Parameters

idx	The global indices where to set.
vals	The values to set.
additive	Whether to add into the current values or overwrite them.

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◆ set() [2/4]

template<class T, class S>

virtual void SF::abstract_vector< T, S >::set	(	const vector< T > &	idx,
		const S	val
	)

pure virtual

Set the specified vector indices to one value.

Parameters

idx	The indices where to set.
val	The value to set.

◆ set() [3/4]

template<class T, class S>

virtual void SF::abstract_vector< T, S >::set ( const S val )

pure virtual

Set the whole vector to one value.

Parameters

val	The value to set.

◆ set() [4/4]

template<class T, class S>

virtual void SF::abstract_vector< T, S >::set	(	const T	idx,
		const S	val
	)

pure virtual

Set one index to a specific value.

Parameters

idx	The index to be set.
val	The value to set.

Note: Caution: repetitive use of this function can be very inefficient!

◆ shallow_copy()

template<class T, class S>

virtual void SF::abstract_vector< T, S >::shallow_copy ( const abstract_vector< T, S > & v )

pure virtual

Shallow copy into this vector from another abstract_vector.

I.e., copy the internal pointers only.

Parameters

v	The vector to copy from.

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◆ sum()

template<class T, class S>

virtual S SF::abstract_vector< T, S >::sum ( ) const

pure virtual

Compute the sum of elements of this vector.

Returns: the sum of elements of this vector.

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◆ to_string()

template<class T, class S>

virtual std::string SF::abstract_vector< T, S >::to_string ( ) const

pure virtual

A string format for the current vector.

Returns: a string format for the current vector.

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◆ write_ascii()

template<class T, class S>

size_t SF::abstract_vector< T, S >::write_ascii	(	const char *	file,
		bool	write_header
	)

inline

Write the vector to a file

Parameters

file	The file to write to.
write_header	Whether to write the header as well

Returns: the number of characters written.

Definition at line 436 of file SF_abstract_vector.h.

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◆ write_binary() [1/2]

template<class T, class S>

template<typename V >

size_t SF::abstract_vector< T, S >::write_binary ( FILE * fd )

inline

Write a vector to HD in binary. File descriptor is already set up.

File descriptor is not closed by this function.

Parameters

fd	The already set up file descriptor.

Definition at line 510 of file SF_abstract_vector.h.

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◆ write_binary() [2/2]

template<class T, class S>

template<typename V >

size_t SF::abstract_vector< T, S >::write_binary ( std::string file )

inline

write binary. Open file descriptor myself.

Definition at line 530 of file SF_abstract_vector.h.

Member Data Documentation

◆ dpn

template<class T, class S>

int SF::abstract_vector< T, S >::dpn = 0

d.o.f. per mesh vertex.

Definition at line 62 of file SF_abstract_vector.h.

◆ layout

template<class T, class S>

ltype SF::abstract_vector< T, S >::layout = unset

used vector layout (nodal, algebraic, unset)

Definition at line 63 of file SF_abstract_vector.h.

◆ mesh

template<class T, class S>

const meshdata<mesh_int_t,mesh_real_t>* SF::abstract_vector< T, S >::mesh = NULL

the connected mesh

Definition at line 61 of file SF_abstract_vector.h.

The documentation for this class was generated from the following file:

fem/slimfem/src/SF_abstract_vector.h

Public Types

Public Member Functions

Public Attributes

Detailed Description

template<class T, class S> class SF::abstract_vector< T, S >

Member Enumeration Documentation

◆ ltype

Constructor & Destructor Documentation

◆ ~abstract_vector()

Member Function Documentation

◆ add_scaled()

◆ apply_scattering()

◆ backward()

◆ const_ptr()

◆ const_release_ptr()

◆ deep_copy()

◆ dot()

◆ equals()

◆ finish_assembly()

◆ forward()

◆ get() [1/2]

◆ get() [2/2]

◆ get_ownership_range()

◆ gsize()

◆ init() [1/3]

◆ init() [2/3]

◆ init() [3/3]

◆ init_common()

◆ is_init()

◆ lsize()

◆ mag()

◆ min()

◆ operator*=() [1/2]

◆ operator*=() [2/2]

◆ operator+=() [1/2]

◆ operator+=() [2/2]

◆ operator-=()

◆ operator/=()

◆ operator=() [1/2]

◆ operator=() [2/2]

◆ overshadow()

◆ ptr()

◆ read_ascii() [1/2]

◆ read_ascii() [2/2]

◆ read_binary() [1/2]

◆ read_binary() [2/2]

◆ release_ptr()

◆ set() [1/4]

◆ set() [2/4]

◆ set() [3/4]

◆ set() [4/4]

◆ shallow_copy()

◆ sum()

◆ to_string()

◆ write_ascii()

◆ write_binary() [1/2]

◆ write_binary() [2/2]

Member Data Documentation

◆ dpn

◆ layout

◆ mesh

template<class T, class S>
class SF::abstract_vector< T, S >