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MFEM
v4.3.0
Finite element discretization library
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Class for parallel linear form. More...
#include <plinearform.hpp>
Public Member Functions | |
ParLinearForm () | |
Create an empty ParLinearForm without an associated ParFiniteElementSpace. More... | |
ParLinearForm (ParFiniteElementSpace *pf) | |
Create a ParLinearForm on the FE space *pf. More... | |
ParLinearForm (ParFiniteElementSpace *pf, double *data) | |
Construct a ParLinearForm using previously allocated array data. More... | |
ParLinearForm (ParFiniteElementSpace *pf, ParLinearForm *plf) | |
Create a ParLinearForm on the ParFiniteElementSpace *pf, using the same integrators as the ParLinearForm *plf. More... | |
ParLinearForm & | operator= (const ParLinearForm &rhs) |
Copy assignment. Only the data of the base class Vector is copied. More... | |
ParFiniteElementSpace * | ParFESpace () const |
void | Update (ParFiniteElementSpace *pf=NULL) |
Update the object according to the given new FE space *pf. More... | |
void | Update (ParFiniteElementSpace *pf, Vector &v, int v_offset) |
Associate a new FE space, *pf, with this object and use the data of v, offset by v_offset, to initialize this object's Vector::data. More... | |
virtual void | MakeRef (FiniteElementSpace *f, Vector &v, int v_offset) |
Make the ParLinearForm reference external data on a new FiniteElementSpace. More... | |
void | MakeRef (ParFiniteElementSpace *pf, Vector &v, int v_offset) |
Make the ParLinearForm reference external data on a new ParFiniteElementSpace. More... | |
void | Assemble () |
void | AssembleSharedFaces () |
void | ParallelAssemble (Vector &tv) |
Assemble the vector on the true dofs, i.e. P^t v. More... | |
HypreParVector * | ParallelAssemble () |
Returns the vector assembled on the true dofs, i.e. P^t v. More... | |
double | operator() (const ParGridFunction &gf) const |
Return the action of the ParLinearForm as a linear mapping. More... | |
ParLinearForm & | operator= (double value) |
Assign constant values to the ParLinearForm data. More... | |
ParLinearForm & | operator= (const Vector &v) |
Copy the data from a Vector to the ParLinearForm data. More... | |
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LinearForm (FiniteElementSpace *f) | |
Creates linear form associated with FE space *f. More... | |
LinearForm (FiniteElementSpace *f, LinearForm *lf) | |
Create a LinearForm on the FiniteElementSpace f, using the same integrators as the LinearForm lf. More... | |
LinearForm () | |
Create an empty LinearForm without an associated FiniteElementSpace. More... | |
LinearForm (FiniteElementSpace *f, double *data) | |
Construct a LinearForm using previously allocated array data. More... | |
LinearForm & | operator= (const LinearForm &rhs) |
Copy assignment. Only the data of the base class Vector is copied. More... | |
MFEM_DEPRECATED FiniteElementSpace * | GetFES () |
(DEPRECATED) Return the FE space associated with the LinearForm. More... | |
FiniteElementSpace * | FESpace () |
Read+write access to the associated FiniteElementSpace. More... | |
const FiniteElementSpace * | FESpace () const |
Read-only access to the associated FiniteElementSpace. More... | |
void | AddDomainIntegrator (LinearFormIntegrator *lfi) |
Adds new Domain Integrator. Assumes ownership of lfi. More... | |
void | AddDomainIntegrator (LinearFormIntegrator *lfi, Array< int > &elem_marker) |
void | AddBoundaryIntegrator (LinearFormIntegrator *lfi) |
Adds new Boundary Integrator. Assumes ownership of lfi. More... | |
void | AddBoundaryIntegrator (LinearFormIntegrator *lfi, Array< int > &bdr_attr_marker) |
Add new Boundary Integrator, restricted to the given boundary attributes. More... | |
void | AddBdrFaceIntegrator (LinearFormIntegrator *lfi) |
Adds new Boundary Face Integrator. Assumes ownership of lfi. More... | |
void | AddBdrFaceIntegrator (LinearFormIntegrator *lfi, Array< int > &bdr_attr_marker) |
Add new Boundary Face Integrator, restricted to the given boundary attributes. More... | |
void | AddInteriorFaceIntegrator (LinearFormIntegrator *lfi) |
Adds new Interior Face Integrator. Assumes ownership of lfi. More... | |
Array< LinearFormIntegrator * > * | GetDLFI () |
Access all integrators added with AddDomainIntegrator() which are not DeltaLFIntegrators or they are DeltaLFIntegrators with non-delta coefficients. More... | |
Array< DeltaLFIntegrator * > * | GetDLFI_Delta () |
Access all integrators added with AddDomainIntegrator() which are DeltaLFIntegrators with delta coefficients. More... | |
Array< LinearFormIntegrator * > * | GetBLFI () |
Access all integrators added with AddBoundaryIntegrator(). More... | |
Array< LinearFormIntegrator * > * | GetFLFI () |
Access all integrators added with AddBdrFaceIntegrator(). More... | |
Array< LinearFormIntegrator * > * | GetIFLFI () |
Access all integrators added with AddInteriorFaceIntegrator(). More... | |
Array< Array< int > * > * | GetFLFI_Marker () |
Access all boundary markers added with AddBdrFaceIntegrator(). If no marker was specified when the integrator was added, the corresponding pointer (to Array<int>) will be NULL. More... | |
void | Assemble () |
Assembles the linear form i.e. sums over all domain/bdr integrators. More... | |
void | AssembleDelta () |
Assembles delta functions of the linear form. More... | |
void | Update () |
Update the object according to the associated FE space fes. More... | |
void | Update (FiniteElementSpace *f) |
Associate a new FE space, *f, with this object and Update() it. */. More... | |
void | Update (FiniteElementSpace *f, Vector &v, int v_offset) |
Associate a new FE space, *f, with this object and use the data of v, offset by v_offset, to initialize this object's Vector::data. More... | |
double | operator() (const GridFunction &gf) const |
Return the action of the LinearForm as a linear mapping. More... | |
LinearForm & | operator= (double value) |
Redefine '=' for LinearForm = constant. More... | |
LinearForm & | operator= (const Vector &v) |
Copy the data from v. More... | |
~LinearForm () | |
Destroys linear form. More... | |
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Vector () | |
Default constructor for Vector. Sets size = 0 and data = NULL. More... | |
Vector (const Vector &) | |
Copy constructor. Allocates a new data array and copies the data. More... | |
Vector (int s) | |
Creates vector of size s. More... | |
Vector (double *data_, int size_) | |
Creates a vector referencing an array of doubles, owned by someone else. More... | |
Vector (int size_, MemoryType mt) | |
Create a Vector of size size_ using MemoryType mt. More... | |
Vector (int size_, MemoryType h_mt, MemoryType d_mt) | |
Create a Vector of size size_ using host MemoryType h_mt and device MemoryType d_mt. More... | |
template<int N> | |
Vector (const double(&values)[N]) | |
Create a vector using a braced initializer list. More... | |
virtual void | UseDevice (bool use_dev) const |
Enable execution of Vector operations using the mfem::Device. More... | |
virtual bool | UseDevice () const |
Return the device flag of the Memory object used by the Vector. More... | |
void | Load (std::istream **in, int np, int *dim) |
Reads a vector from multiple files. More... | |
void | Load (std::istream &in, int Size) |
Load a vector from an input stream. More... | |
void | Load (std::istream &in) |
Load a vector from an input stream, reading the size from the stream. More... | |
void | SetSize (int s) |
Resize the vector to size s. More... | |
void | SetSize (int s, MemoryType mt) |
Resize the vector to size s using MemoryType mt. More... | |
void | SetSize (int s, Vector &v) |
Resize the vector to size s using the MemoryType of v. More... | |
void | SetData (double *d) |
void | SetDataAndSize (double *d, int s) |
Set the Vector data and size. More... | |
void | NewDataAndSize (double *d, int s) |
Set the Vector data and size, deleting the old data, if owned. More... | |
void | NewMemoryAndSize (const Memory< double > &mem, int s, bool own_mem) |
Reset the Vector to use the given external Memory mem and size s. More... | |
void | MakeRef (Vector &base, int offset, int size) |
Reset the Vector to be a reference to a sub-vector of base. More... | |
void | MakeRef (Vector &base, int offset) |
Reset the Vector to be a reference to a sub-vector of base without changing its current size. More... | |
void | MakeDataOwner () const |
Set the Vector data (host pointer) ownership flag. More... | |
void | Destroy () |
Destroy a vector. More... | |
void | DeleteDevice (bool copy_to_host=true) |
Delete the device pointer, if owned. If copy_to_host is true and the data is valid only on device, move it to host before deleting. Invalidates the device memory. More... | |
int | Size () const |
Returns the size of the vector. More... | |
int | Capacity () const |
Return the size of the currently allocated data array. More... | |
double * | GetData () const |
Return a pointer to the beginning of the Vector data. More... | |
operator double * () | |
Conversion to double * . More... | |
operator const double * () const | |
Conversion to const double * . More... | |
double * | begin () |
STL-like begin. More... | |
double * | end () |
STL-like end. More... | |
const double * | begin () const |
STL-like begin (const version). More... | |
const double * | end () const |
STL-like end (const version). More... | |
Memory< double > & | GetMemory () |
Return a reference to the Memory object used by the Vector. More... | |
const Memory< double > & | GetMemory () const |
Return a reference to the Memory object used by the Vector, const version. More... | |
void | SyncMemory (const Vector &v) const |
Update the memory location of the vector to match v. More... | |
void | SyncAliasMemory (const Vector &v) const |
Update the alias memory location of the vector to match v. More... | |
bool | OwnsData () const |
Read the Vector data (host pointer) ownership flag. More... | |
void | StealData (double **p) |
Changes the ownership of the data; after the call the Vector is empty. More... | |
double * | StealData () |
Changes the ownership of the data; after the call the Vector is empty. More... | |
double & | Elem (int i) |
Access Vector entries. Index i = 0 .. size-1. More... | |
const double & | Elem (int i) const |
Read only access to Vector entries. Index i = 0 .. size-1. More... | |
double & | operator() (int i) |
Access Vector entries using () for 0-based indexing. More... | |
const double & | operator() (int i) const |
Read only access to Vector entries using () for 0-based indexing. More... | |
double | operator* (const double *) const |
Dot product with a double * array. More... | |
double | operator* (const Vector &v) const |
Return the inner-product. More... | |
Vector & | operator= (const double *v) |
Copy Size() entries from v. More... | |
Vector & | operator= (const Vector &v) |
Copy assignment. More... | |
Vector & | operator= (double value) |
Redefine '=' for vector = constant. More... | |
Vector & | operator*= (double c) |
Vector & | operator*= (const Vector &v) |
Component-wise scaling: (*this)(i) *= v(i) More... | |
Vector & | operator/= (double c) |
Vector & | operator/= (const Vector &v) |
Component-wise division: (*this)(i) /= v(i) More... | |
Vector & | operator-= (double c) |
Vector & | operator-= (const Vector &v) |
Vector & | operator+= (double c) |
Vector & | operator+= (const Vector &v) |
Vector & | Add (const double a, const Vector &Va) |
(*this) += a * Va More... | |
Vector & | Set (const double a, const Vector &x) |
(*this) = a * x More... | |
void | SetVector (const Vector &v, int offset) |
void | Neg () |
(*this) = -(*this) More... | |
void | Swap (Vector &other) |
Swap the contents of two Vectors. More... | |
void | median (const Vector &lo, const Vector &hi) |
v = median(v,lo,hi) entrywise. Implementation assumes lo <= hi. More... | |
void | GetSubVector (const Array< int > &dofs, Vector &elemvect) const |
Extract entries listed in dofs to the output Vector elemvect. More... | |
void | GetSubVector (const Array< int > &dofs, double *elem_data) const |
Extract entries listed in dofs to the output array elem_data. More... | |
void | SetSubVector (const Array< int > &dofs, const double value) |
Set the entries listed in dofs to the given value. More... | |
void | SetSubVector (const Array< int > &dofs, const Vector &elemvect) |
Set the entries listed in dofs to the values given in the elemvect Vector. Negative dof values cause the -dof-1 position in this Vector to receive the -val from elemvect. More... | |
void | SetSubVector (const Array< int > &dofs, double *elem_data) |
Set the entries listed in dofs to the values given the , elem_data array. Negative dof values cause the -dof-1 position in this Vector to receive the -val from elem_data. More... | |
void | AddElementVector (const Array< int > &dofs, const Vector &elemvect) |
Add elements of the elemvect Vector to the entries listed in dofs. Negative dof values cause the -dof-1 position in this Vector to add the -val from elemvect. More... | |
void | AddElementVector (const Array< int > &dofs, double *elem_data) |
Add elements of the elem_data array to the entries listed in dofs. Negative dof values cause the -dof-1 position in this Vector to add the -val from elem_data. More... | |
void | AddElementVector (const Array< int > &dofs, const double a, const Vector &elemvect) |
Add times the elements of the elemvect Vector to the entries listed in dofs. Negative dof values cause the -dof-1 position in this Vector to add the -a*val from elemvect. More... | |
void | SetSubVectorComplement (const Array< int > &dofs, const double val) |
Set all vector entries NOT in the dofs Array to the given val. More... | |
void | Print (std::ostream &out=mfem::out, int width=8) const |
Prints vector to stream out. More... | |
void | Print (adios2stream &out, const std::string &variable_name) const |
void | Print_HYPRE (std::ostream &out) const |
Prints vector to stream out in HYPRE_Vector format. More... | |
void | PrintHash (std::ostream &out) const |
Print the Vector size and hash of its data. More... | |
void | Randomize (int seed=0) |
Set random values in the vector. More... | |
double | Norml2 () const |
Returns the l2 norm of the vector. More... | |
double | Normlinf () const |
Returns the l_infinity norm of the vector. More... | |
double | Norml1 () const |
Returns the l_1 norm of the vector. More... | |
double | Normlp (double p) const |
Returns the l_p norm of the vector. More... | |
double | Max () const |
Returns the maximal element of the vector. More... | |
double | Min () const |
Returns the minimal element of the vector. More... | |
double | Sum () const |
Return the sum of the vector entries. More... | |
double | DistanceSquaredTo (const double *p) const |
Compute the square of the Euclidean distance to another vector. More... | |
double | DistanceTo (const double *p) const |
Compute the Euclidean distance to another vector. More... | |
int | CheckFinite () const |
Count the number of entries in the Vector for which isfinite is false, i.e. the entry is a NaN or +/-Inf. More... | |
virtual | ~Vector () |
Destroys vector. More... | |
virtual const double * | Read (bool on_dev=true) const |
Shortcut for mfem::Read(vec.GetMemory(), vec.Size(), on_dev). More... | |
virtual const double * | HostRead () const |
Shortcut for mfem::Read(vec.GetMemory(), vec.Size(), false). More... | |
virtual double * | Write (bool on_dev=true) |
Shortcut for mfem::Write(vec.GetMemory(), vec.Size(), on_dev). More... | |
virtual double * | HostWrite () |
Shortcut for mfem::Write(vec.GetMemory(), vec.Size(), false). More... | |
virtual double * | ReadWrite (bool on_dev=true) |
Shortcut for mfem::ReadWrite(vec.GetMemory(), vec.Size(), on_dev). More... | |
virtual double * | HostReadWrite () |
Shortcut for mfem::ReadWrite(vec.GetMemory(), vec.Size(), false). More... | |
MFEM_DEPRECATED | Vector (N_Vector nv) |
(DEPRECATED) Construct a wrapper Vector from SUNDIALS N_Vector. More... | |
virtual MFEM_DEPRECATED N_Vector | ToNVector () |
(DEPRECATED) Return a new wrapper SUNDIALS N_Vector of type SUNDIALS_NVEC_SERIAL. More... | |
virtual MFEM_DEPRECATED void | ToNVector (N_Vector &nv, long global_length=0) |
Update an existing wrapper SUNDIALS N_Vector to point to this Vector. More... | |
Protected Attributes | |
ParFiniteElementSpace * | pfes |
Points to the same object as fes. More... | |
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FiniteElementSpace * | fes |
FE space on which the LinearForm lives. Not owned. More... | |
int | extern_lfs |
Indicates the LinearFormIntegrators stored in domain_integs, domain_delta_integs, boundary_integs, and boundary_face_integs are owned by another LinearForm. More... | |
Array< LinearFormIntegrator * > | domain_integs |
Set of Domain Integrators to be applied. More... | |
Array< Array< int > * > | domain_integs_marker |
Array< DeltaLFIntegrator * > | domain_delta_integs |
Separate array for integrators with delta function coefficients. More... | |
Array< LinearFormIntegrator * > | boundary_integs |
Set of Boundary Integrators to be applied. More... | |
Array< Array< int > * > | boundary_integs_marker |
Entries are not owned. More... | |
Array< LinearFormIntegrator * > | boundary_face_integs |
Set of Boundary Face Integrators to be applied. More... | |
Array< Array< int > * > | boundary_face_integs_marker |
Entries not owned. More... | |
Array< LinearFormIntegrator * > | interior_face_integs |
Set of Internal Face Integrators to be applied. More... | |
Array< int > | domain_delta_integs_elem_id |
The element ids where the centers of the delta functions lie. More... | |
Array< IntegrationPoint > | domain_delta_integs_ip |
The reference coordinates where the centers of the delta functions lie. More... | |
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Memory< double > | data |
int | size |
Additional Inherited Members | |
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bool | HaveDeltaLocations () |
If true, the delta locations are not (re)computed during assembly. More... | |
void | ResetDeltaLocations () |
Force (re)computation of delta locations. More... | |
Class for parallel linear form.
Definition at line 26 of file plinearform.hpp.
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inline |
Create an empty ParLinearForm without an associated ParFiniteElementSpace.
The associated ParFiniteElementSpace can be set later using one of the methods: Update(ParFiniteElementSpace *) or Update(ParFiniteElementSpace *, Vector &, int).
Definition at line 42 of file plinearform.hpp.
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inline |
Create a ParLinearForm on the FE space *pf.
The pointer pf is not owned by the newly constructed object.
Definition at line 46 of file plinearform.hpp.
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inline |
Construct a ParLinearForm using previously allocated array data.
The ParLinearForm does not assume ownership of data which is assumed to be of size at least pf->GetVSize()
. Similar to the LinearForm and Vector constructors for externally allocated array, the pointer data can be NULL. The data array can be replaced later using the method SetData().
Definition at line 54 of file plinearform.hpp.
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inline |
Create a ParLinearForm on the ParFiniteElementSpace *pf, using the same integrators as the ParLinearForm *plf.
The pointer pf is not owned by the newly constructed object.
The integrators in plf are copied as pointers and they are not owned by the newly constructed LinearForm.
Definition at line 64 of file plinearform.hpp.
void mfem::ParLinearForm::Assemble | ( | ) |
Definition at line 46 of file plinearform.cpp.
void mfem::ParLinearForm::AssembleSharedFaces | ( | ) |
Definition at line 57 of file plinearform.cpp.
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virtual |
Make the ParLinearForm reference external data on a new FiniteElementSpace.
This method changes the FiniteElementSpace associated with the ParLinearForm to *f and sets the data of the Vector v (plus the v_offset) as external data in the ParLinearForm.
Reimplemented from mfem::LinearForm.
Definition at line 33 of file plinearform.cpp.
void mfem::ParLinearForm::MakeRef | ( | ParFiniteElementSpace * | pf, |
Vector & | v, | ||
int | v_offset | ||
) |
Make the ParLinearForm reference external data on a new ParFiniteElementSpace.
This method changes the ParFiniteElementSpace associated with the ParLinearForm to *pf and sets the data of the Vector v (plus the v_offset) as external data in the ParLinearForm.
Definition at line 40 of file plinearform.cpp.
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inline |
Return the action of the ParLinearForm as a linear mapping.
Linear forms are linear functionals which map ParGridFunctions to the real numbers. This method performs this mapping which in this case is equivalent as an inner product of the ParLinearForm and ParGridFunction.
Definition at line 131 of file plinearform.hpp.
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inline |
Copy assignment. Only the data of the base class Vector is copied.
It is assumed that this object and rhs use ParFiniteElementSpaces that have the same size.
Definition at line 73 of file plinearform.hpp.
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inline |
Assign constant values to the ParLinearForm data.
Definition at line 137 of file plinearform.hpp.
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inline |
Copy the data from a Vector to the ParLinearForm data.
Definition at line 141 of file plinearform.hpp.
void mfem::ParLinearForm::ParallelAssemble | ( | Vector & | tv | ) |
Assemble the vector on the true dofs, i.e. P^t v.
Definition at line 87 of file plinearform.cpp.
HypreParVector * mfem::ParLinearForm::ParallelAssemble | ( | ) |
Returns the vector assembled on the true dofs, i.e. P^t v.
Definition at line 93 of file plinearform.cpp.
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inline |
Definition at line 76 of file plinearform.hpp.
void mfem::ParLinearForm::Update | ( | ParFiniteElementSpace * | pf = NULL | ) |
Update the object according to the given new FE space *pf.
If the pointer pf is NULL (this is the default value), the FE space already associated with this object is used.
This method should be called when the associated FE space fes has been updated, e.g. after its associated Mesh object has been refined.
Definition at line 21 of file plinearform.cpp.
void mfem::ParLinearForm::Update | ( | ParFiniteElementSpace * | pf, |
Vector & | v, | ||
int | v_offset | ||
) |
Associate a new FE space, *pf, with this object and use the data of v, offset by v_offset, to initialize this object's Vector::data.
Definition at line 27 of file plinearform.cpp.
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protected |
Points to the same object as fes.
Definition at line 29 of file plinearform.hpp.