sc::MOIndexSpace Class Reference

Class MOIndexSpace describes a range of molecular orbitals or similar objects that are linear combinations of basis functions (e.g. More...

#include <moindexspace.h>

Inheritance diagram for sc::MOIndexSpace:

sc::SavableState sc::DescribedClass sc::RefCount sc::Identity List of all members.

Public Types

enum  IndexOrder { symmetry = 0, energy = 1, undefined = 2 }
 Describes the ordering of indices.

Public Member Functions

 MOIndexSpace (StateIn &)
 MOIndexSpace (std::string name, const RefSCMatrix &full_coefs, const Ref< GaussianBasisSet > basis, const Ref< Integral > &integral, const vector< int > &offsets, const vector< int > &nmopi, IndexOrder moorder=symmetry, const RefDiagSCMatrix &evals=0)
 This function constructs an MOIndexSpace from (blocked) space full_coefs.
 MOIndexSpace (std::string name, const RefSCMatrix &full_coefs, const Ref< GaussianBasisSet > basis, const Ref< Integral > &integral, const RefDiagSCMatrix &evals, int nfzc, int nfzv, IndexOrder moorder=energy)
 This constructor should be used when the MOIndexSpace object is a subspace of a full orbital space.
 MOIndexSpace (std::string name, const RefSCMatrix &full_coefs, const Ref< GaussianBasisSet > basis, const Ref< Integral > &integral)
 This constructor should be used when the MOIndexSpace object is the full orbital space.
 MOIndexSpace (std::string name, const Ref< MOIndexSpace > &orig_space, const RefSCMatrix &new_coefs, const Ref< GaussianBasisSet > &new_basis)
 This constructor is a true hack introduced because I have no idea how to construct what I need.
void save_data_state (StateOut &)
 Save the base classes (with save_data_state) and the members in the same order that the StateIn CTOR initializes them.
const std::string name () const
 Returns the name of this MOIndexSpace.
const Ref< GaussianBasisSetbasis () const
 Returns the AO basis set.
Ref< Integralintegral () const
 Returns the integral factory used to instantiate the coefficient matrix.
const RefSCMatrix coefs () const
 Returns the coefficient matrix.
const RefDiagSCMatrix evals () const
 Returns the "eigenvalues" matrix.
vector< int > mosym () const
 Returns the orbital symmetry array.
IndexOrder moorder () const
 Returns the order of the orbitals.
int rank () const
 Returns the rank of the space.
int full_rank () const
 Returns the rank of the full space.
int nblocks () const
 Returns the number of blocks.
vector< int > nmo () const
 Returns the number of orbitals in each block.
vector< int > offsets () const
 Returns the full-space index of the first orbital in each block.
int to_full_space (const int i) const
 Returns the full-space index.
size_t memory_in_use () const
 Returns how much "significant" (i.e. O^2) memory this object uses.
void print (std::ostream &o=ExEnv::out0()) const
 Prints out this.
void print_summary (std::ostream &os) const
 Produces a short summary.

Detailed Description

Class MOIndexSpace describes a range of molecular orbitals or similar objects that are linear combinations of basis functions (e.g.

atomic orbitals). In general, such sets are subspaces of a full space of orbitals supported by the given basis. Orbitals can be symmetry-blocked, ordered by energy, etc. Examples of sets that can be described using MOIndexSpace are occupied MOs and virtual MOs.


Constructor & Destructor Documentation

sc::MOIndexSpace::MOIndexSpace ( std::string  name,
const RefSCMatrix full_coefs,
const Ref< GaussianBasisSet basis,
const Ref< Integral > &  integral,
const vector< int > &  offsets,
const vector< int > &  nmopi,
IndexOrder  moorder = symmetry,
const RefDiagSCMatrix evals = 0 
)

This function constructs an MOIndexSpace from (blocked) space full_coefs.

Block i will contain vectors [ offsets[i], offsets[i]+nmopi[i]-1 ] . By default, the space maintains the same blocked structure and the same order within blocks as the original space (moorder=symmetry). If moorder=energy and eigenvalues evals are provided, then all vectors will be put in one block and sorted according to ascending evals.

Parameters:
name -- the name of this MOIndexSpace
full_coefs -- symmetry-blocked transformation coefficient matrix (AO by MO) for the full space
basis -- basis set
integral -- integral factory
offsets -- block offsets
nmopi -- new block sizes
moorder -- specifies new ordering of vectors
evals -- used to sort the vectors

sc::MOIndexSpace::MOIndexSpace ( std::string  name,
const RefSCMatrix full_coefs,
const Ref< GaussianBasisSet basis,
const Ref< Integral > &  integral,
const RefDiagSCMatrix evals,
int  nfzc,
int  nfzv,
IndexOrder  moorder = energy 
)

This constructor should be used when the MOIndexSpace object is a subspace of a full orbital space.

Similarly to the previous constructor, it constructs an MOIndexSpace object using a symmetry-blocked transformation coefficient matrix (AO by MO) for the full space, basis set, "eigenvalues" and the number of orbitals with lowest (nfzc) and highest (nfzv) eigenvalues to be dropped. The orbitals in the constructed space are ordered by energy.

sc::MOIndexSpace::MOIndexSpace ( std::string  name,
const RefSCMatrix full_coefs,
const Ref< GaussianBasisSet basis,
const Ref< Integral > &  integral 
)

This constructor should be used when the MOIndexSpace object is the full orbital space.

The orbitals will be symmetry-blocked.

sc::MOIndexSpace::MOIndexSpace ( std::string  name,
const Ref< MOIndexSpace > &  orig_space,
const RefSCMatrix new_coefs,
const Ref< GaussianBasisSet > &  new_basis 
)

This constructor is a true hack introduced because I have no idea how to construct what I need.

It will copy orig_space but replace it's coefs with new_coefs, and its basis with new_basis.


Member Function Documentation

void sc::MOIndexSpace::save_data_state ( StateOut  )  [virtual]

Save the base classes (with save_data_state) and the members in the same order that the StateIn CTOR initializes them.

This must be implemented by the derived class if the class has data.

Reimplemented from sc::SavableState.


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