QMCPACK
LinearOrbital Class Reference
+ Inheritance diagram for LinearOrbital:
+ Collaboration diagram for LinearOrbital:

Public Member Functions

 LinearOrbital ()
 
std::string getClassName () const override
 return class name More...
 
LogValue evaluateLog (const ParticleSet &P, ParticleSet::ParticleGradient &G, ParticleSet::ParticleLaplacian &L) override
 evaluate the value of the WaveFunctionComponent from scratch More...
 
void acceptMove (ParticleSet &P, int iat, bool safe_to_delay=false) override
 a move for iat-th particle is accepted. More...
 
void restore (int iat) override
 If a move for iat-th particle is rejected, restore to the content. More...
 
PsiValue ratio (ParticleSet &P, int iat) override
 evaluate the ratio of the new to old WaveFunctionComponent value More...
 
GradType evalGrad (ParticleSet &P, int iat) override
 return the current gradient for the iat-th particle More...
 
PsiValue ratioGrad (ParticleSet &P, int iat, GradType &grad_iat) override
 evaluate the ratio of the new to old WaveFunctionComponent value and the new gradient More...
 
void registerData (ParticleSet &P, WFBufferType &buf) override
 For particle-by-particle move. More...
 
LogValue updateBuffer (ParticleSet &P, WFBufferType &buf, bool fromscratch=false) override
 For particle-by-particle move. More...
 
void copyFromBuffer (ParticleSet &P, WFBufferType &buf) override
 For particle-by-particle move. More...
 
void evaluateDerivatives (ParticleSet &P, const opt_variables_type &optvars, Vector< ValueType > &dlogpsi, Vector< ValueType > &dhpsioverpsi) override
 Compute the derivatives of both the log of the wavefunction and kinetic energy with respect to optimizable parameters. More...
 
- Public Member Functions inherited from WaveFunctionComponent
const LogValueget_log_value () const
 
 WaveFunctionComponent (const std::string &obj_name="")
 default constructor More...
 
virtual ~WaveFunctionComponent ()
 default destructor More...
 
virtual void checkSanity () const
 Validate the internal consistency of the object. More...
 
const std::string & getName () const
 return object name More...
 
PsiValue getValue () const
 assembles the full value More...
 
virtual bool isFermionic () const
 true, if this component is fermionic More...
 
virtual bool isMultiDet () const
 true, if this component is multi-determinant More...
 
virtual void checkOutVariables (const opt_variables_type &active)
 check out variational optimizable variables More...
 
virtual void registerTWFFastDerivWrapper (const ParticleSet &P, TWFFastDerivWrapper &twf) const
 Register the component with the TWFFastDerivWrapper wrapper. More...
 
virtual void mw_evaluateLog (const RefVectorWithLeader< WaveFunctionComponent > &wfc_list, const RefVectorWithLeader< ParticleSet > &p_list, const RefVector< ParticleSet::ParticleGradient > &G_list, const RefVector< ParticleSet::ParticleLaplacian > &L_list) const
 evaluate from scratch the same type WaveFunctionComponent of multiple walkers More...
 
virtual void recompute (const ParticleSet &P)
 recompute the value of the WaveFunctionComponents which require critical accuracy. More...
 
virtual void mw_recompute (const RefVectorWithLeader< WaveFunctionComponent > &wfc_list, const RefVectorWithLeader< ParticleSet > &p_list, const std::vector< bool > &recompute) const
 
virtual void evaluateHessian (ParticleSet &P, HessVector &grad_grad_psi_all)
 
virtual void prepareGroup (ParticleSet &P, int ig)
 Prepare internal data for updating WFC correspond to a particle group It should be called before moving particles of a given group. More...
 
virtual void mw_prepareGroup (const RefVectorWithLeader< WaveFunctionComponent > &wfc_list, const RefVectorWithLeader< ParticleSet > &p_list, int ig) const
 
virtual GradType evalGradWithSpin (ParticleSet &P, int iat, ComplexType &spingrad)
 return the current spin gradient for the iat-th particle Default implementation assumes that WaveFunctionComponent does not explicitly depend on Spin. More...
 
template<CoordsType CT>
void mw_evalGrad (const RefVectorWithLeader< WaveFunctionComponent > &wfc_list, const RefVectorWithLeader< ParticleSet > &p_list, const int iat, TWFGrads< CT > &grads_now) const
 compute the current gradients for the iat-th particle of multiple walkers More...
 
virtual void mw_evalGrad (const RefVectorWithLeader< WaveFunctionComponent > &wfc_list, const RefVectorWithLeader< ParticleSet > &p_list, int iat, std::vector< GradType > &grad_now) const
 compute the current gradients for the iat-th particle of multiple walkers More...
 
virtual GradType evalGradSource (ParticleSet &P, ParticleSet &source, int iat)
 return the logarithmic gradient for the iat-th particle of the source particleset More...
 
virtual GradType evalGradSource (ParticleSet &P, ParticleSet &source, int iat, TinyVector< ParticleSet::ParticleGradient, OHMMS_DIM > &grad_grad, TinyVector< ParticleSet::ParticleLaplacian, OHMMS_DIM > &lapl_grad)
 Adds the gradient w.r.t. More...
 
virtual PsiValue ratioGradWithSpin (ParticleSet &P, int iat, GradType &grad_iat, ComplexType &spingrad_iat)
 evaluate the ratio of the new to old WaveFunctionComponent value and the new spin gradient Default implementation assumes that WaveFunctionComponent does not explicitly depend on Spin. More...
 
template<CoordsType CT>
void mw_ratioGrad (const RefVectorWithLeader< WaveFunctionComponent > &wfc_list, const RefVectorWithLeader< ParticleSet > &p_list, int iat, std::vector< PsiValue > &ratios, TWFGrads< CT > &grad_new) const
 
virtual void mw_ratioGrad (const RefVectorWithLeader< WaveFunctionComponent > &wfc_list, const RefVectorWithLeader< ParticleSet > &p_list, int iat, std::vector< PsiValue > &ratios, std::vector< GradType > &grad_new) const
 compute the ratio of the new to old WaveFunctionComponent value and the new gradient of multiple walkers More...
 
virtual void mw_accept_rejectMove (const RefVectorWithLeader< WaveFunctionComponent > &wfc_list, const RefVectorWithLeader< ParticleSet > &p_list, int iat, const std::vector< bool > &isAccepted, bool safe_to_delay=false) const
 moves of the iat-th particle on some walkers in a batch is accepted. More...
 
virtual void completeUpdates ()
 complete all the delayed or asynchronous operations before leaving the p-by-p move region. More...
 
virtual void mw_completeUpdates (const RefVectorWithLeader< WaveFunctionComponent > &wfc_list) const
 complete all the delayed or asynchronous operations for all the walkers in a batch before leaving the p-by-p move region. More...
 
virtual void mw_calcRatio (const RefVectorWithLeader< WaveFunctionComponent > &wfc_list, const RefVectorWithLeader< ParticleSet > &p_list, int iat, std::vector< PsiValue > &ratios) const
 compute the ratio of the new to old WaveFunctionComponent value of multiple walkers More...
 
virtual LogValue evaluateGL (const ParticleSet &P, ParticleSet::ParticleGradient &G, ParticleSet::ParticleLaplacian &L, bool fromscratch)
 compute gradients and laplacian of the TWF with respect to each particle. More...
 
virtual void mw_evaluateGL (const RefVectorWithLeader< WaveFunctionComponent > &wfc_list, const RefVectorWithLeader< ParticleSet > &p_list, const RefVector< ParticleSet::ParticleGradient > &G_list, const RefVector< ParticleSet::ParticleLaplacian > &L_list, bool fromscratch) const
 evaluate gradients and laplacian of the same type WaveFunctionComponent of multiple walkers More...
 
virtual void createResource (ResourceCollection &collection) const
 initialize a shared resource and hand it to a collection More...
 
virtual void acquireResource (ResourceCollection &collection, const RefVectorWithLeader< WaveFunctionComponent > &wfc_list) const
 acquire a shared resource from a collection More...
 
virtual void releaseResource (ResourceCollection &collection, const RefVectorWithLeader< WaveFunctionComponent > &wfc_list) const
 return a shared resource to a collection More...
 
virtual std::unique_ptr< WaveFunctionComponentmakeClone (ParticleSet &tqp) const
 make clone More...
 
virtual RealType KECorrection ()
 Return the Chiesa kinetic energy correction. More...
 
virtual bool isOptimizable () const
 if true, this contains optimizable components More...
 
virtual void extractOptimizableObjectRefs (UniqueOptObjRefs &opt_obj_refs)
 extract underlying OptimizableObject references More...
 
virtual void evaluateDerivativesWF (ParticleSet &P, const opt_variables_type &optvars, Vector< ValueType > &dlogpsi)
 Compute the derivatives of the log of the wavefunction with respect to optimizable parameters. More...
 
virtual void evaluateGradDerivatives (const ParticleSet::ParticleGradient &G_in, std::vector< ValueType > &dgradlogpsi)
 Calculates the derivatives of $ \nabla \textnormal{log} \psi_f $ with respect to the optimizable parameters, and the dot product of this is then performed with the passed-in G_in gradient vector. More...
 
virtual void finalizeOptimization ()
 
virtual void evaluateRatiosAlltoOne (ParticleSet &P, std::vector< ValueType > &ratios)
 evaluate the ratios of one virtual move with respect to all the particles More...
 
virtual void evaluateRatios (const VirtualParticleSet &VP, std::vector< ValueType > &ratios)
 evaluate ratios to evaluate the non-local PP More...
 
virtual void evaluateSpinorRatios (const VirtualParticleSet &VP, const std::pair< ValueVector, ValueVector > &spinor_multiplier, std::vector< ValueType > &ratios)
 Used by SOECPComponent for faster SOC evaluation. More...
 
virtual void mw_evaluateRatios (const RefVectorWithLeader< WaveFunctionComponent > &wfc_list, const RefVectorWithLeader< const VirtualParticleSet > &vp_list, std::vector< std::vector< ValueType >> &ratios) const
 evaluate ratios to evaluate the non-local PP multiple walkers More...
 
virtual void evaluateDerivRatios (const VirtualParticleSet &VP, const opt_variables_type &optvars, std::vector< ValueType > &ratios, Matrix< ValueType > &dratios)
 evaluate ratios to evaluate the non-local PP More...
 
virtual void mw_evalGradWithSpin (const RefVectorWithLeader< WaveFunctionComponent > &wfc_list, const RefVectorWithLeader< ParticleSet > &p_list, int iat, std::vector< GradType > &grad_now, std::vector< ComplexType > &spingrad_now) const
 compute the current gradients and spin gradients for the iat-th particle of multiple walkers More...
 
virtual void mw_ratioGradWithSpin (const RefVectorWithLeader< WaveFunctionComponent > &wfc_list, const RefVectorWithLeader< ParticleSet > &p_list, int iat, std::vector< PsiValue > &ratios, std::vector< GradType > &grad_new, std::vector< ComplexType > &spingrad_new) const
 compute the ratio of the new to old WaveFunctionComponent value and the new gradient/spingradient of multiple walkers More...
 

Public Attributes

TinyVector< ValueType, 3 > coeff
 
- Public Attributes inherited from WaveFunctionComponent
int UpdateMode
 current update mode More...
 
opt_variables_type myVars
 list of variables this WaveFunctionComponent handles More...
 
size_t Bytes_in_WFBuffer
 Bytes in WFBuffer. More...
 

Additional Inherited Members

- Public Types inherited from WaveFunctionComponent
enum  {
  ORB_PBYP_RATIO, ORB_PBYP_ALL, ORB_PBYP_PARTIAL, ORB_WALKER,
  ORB_ALLWALKER
}
 enum for a update mode More...
 
using Walker_t = ParticleSet::Walker_t
 
using WFBufferType = Walker_t::WFBuffer_t
 
using BufferType = Walker_t::Buffer_t
 
using RealMatrix_t = OrbitalSetTraits< RealType >::ValueMatrix
 
using ValueVector = OrbitalSetTraits< ValueType >::ValueVector
 
using ValueMatrix = OrbitalSetTraits< ValueType >::ValueMatrix
 
using GradMatrix = OrbitalSetTraits< ValueType >::GradMatrix
 
using HessType = OrbitalSetTraits< ValueType >::HessType
 
using HessVector = OrbitalSetTraits< ValueType >::HessVector
 
using LogValue = std::complex< QTFull::RealType >
 
using PsiValue = QTFull::ValueType
 
- Public Types inherited from QMCTraits
enum  { DIM = OHMMS_DIM, DIM_VGL = OHMMS_DIM + 2 }
 
using QTBase = QMCTypes< OHMMS_PRECISION, DIM >
 
using QTFull = QMCTypes< OHMMS_PRECISION_FULL, DIM >
 
using RealType = QTBase::RealType
 
using ComplexType = QTBase::ComplexType
 
using ValueType = QTBase::ValueType
 
using PosType = QTBase::PosType
 
using GradType = QTBase::GradType
 
using TensorType = QTBase::TensorType
 
using IndexType = OHMMS_INDEXTYPE
 define other types More...
 
using FullPrecRealType = QTFull::RealType
 
using FullPrecValueType = QTFull::ValueType
 
using PropertySetType = RecordNamedProperty< FullPrecRealType >
 define PropertyList_t More...
 
using PtclGrpIndexes = std::vector< std::pair< int, int > >
 
- Protected Attributes inherited from WaveFunctionComponent
const std::string my_name_
 Name of the object It is required to be different for objects of the same derived type like multiple J1. More...
 
LogValue log_value_
 Current $\log\phi $. More...
 

Detailed Description

Definition at line 24 of file LinearOrbital.h.

Constructor & Destructor Documentation

◆ LinearOrbital()

LinearOrbital ( )
inline

Definition at line 29 of file LinearOrbital.h.

References LinearOrbital::coeff.

30  {
31  coeff[0] = 1.0;
32  coeff[1] = 2.0;
33  coeff[2] = 3.0;
34  }
TinyVector< ValueType, 3 > coeff
Definition: LinearOrbital.h:27

Member Function Documentation

◆ acceptMove()

void acceptMove ( ParticleSet P,
int  iat,
bool  safe_to_delay = false 
)
inlineoverridevirtual

a move for iat-th particle is accepted.

Update the current content.

Parameters
Ptarget ParticleSet
iatindex of the particle whose new position was proposed
safe_to_delayif true, delayed accept is safe.

Implements WaveFunctionComponent.

Definition at line 56 of file LinearOrbital.h.

56 {}

◆ copyFromBuffer()

void copyFromBuffer ( ParticleSet P,
WFBufferType buf 
)
inlineoverridevirtual

For particle-by-particle move.

Copy data or attach memory from a walker buffer to the objects of this class. The log value, P.G and P.L contribution from the objects of this class are also added.

Parameters
Pparticle set
bufAnonymous storage

Implements WaveFunctionComponent.

Definition at line 73 of file LinearOrbital.h.

73 {}

◆ evalGrad()

GradType evalGrad ( ParticleSet P,
int  iat 
)
inlineoverridevirtual

return the current gradient for the iat-th particle

Parameters
Pquantum particle set
iatparticle index
Returns
the gradient of the iat-th particle

Reimplemented from WaveFunctionComponent.

Definition at line 62 of file LinearOrbital.h.

References LinearOrbital::coeff.

62 { return GradType(coeff); }
QTBase::GradType GradType
Definition: Configuration.h:62
TinyVector< ValueType, 3 > coeff
Definition: LinearOrbital.h:27

◆ evaluateDerivatives()

void evaluateDerivatives ( ParticleSet P,
const opt_variables_type optvars,
Vector< ValueType > &  dlogpsi,
Vector< ValueType > &  dhpsioverpsi 
)
inlineoverridevirtual

Compute the derivatives of both the log of the wavefunction and kinetic energy with respect to optimizable parameters.

Parameters
Pparticle set
optvarsoptimizable parameters
dlogpsiarray of derivatives of the log of the wavefunction. Add the contribution from this component.
dhpsioverpsiarray of Hamiltonian derivatives. Add the kinetic energy derivatives contribution from this component. $ -\frac{1}{2}{\partial}_\alpha \tilde L - G \cdot {\partial}_\alpha \tilde G $. $ \tilde L $ and $ \tilde G $ are from this WaveFunctionComponent. $ G $ is from TrialWaveFunction. The 1/m factor is applied in TrialWaveFunction. This is a bug when the particle set doesn't hold equal mass particles.

Implements WaveFunctionComponent.

Definition at line 75 of file LinearOrbital.h.

79  {}

◆ evaluateLog()

LogValue evaluateLog ( const ParticleSet P,
ParticleSet::ParticleGradient G,
ParticleSet::ParticleLaplacian L 
)
inlineoverridevirtual

evaluate the value of the WaveFunctionComponent from scratch

Parameters
[in]Pactive ParticleSet
[out]GGradients, $\nabla\ln\Psi$
[out]LLaplacians, $\nabla^2\ln\Psi$
Returns
the log value

Mainly for walker-by-walker move. The initial stage of particle-by-particle move also uses this. causes complete state update in WFC's

Implements WaveFunctionComponent.

Definition at line 38 of file LinearOrbital.h.

References LinearOrbital::coeff, qmcplusplus::convertValueToLog(), WaveFunctionComponent::log_value_, OHMMS_DIM, and ParticleSet::R.

Referenced by LinearOrbital::updateBuffer().

41  {
42  ValueType v = 0.0;
43  for (int i = 0; i < P.R.size(); i++)
44  {
45  for (int d = 0; d < OHMMS_DIM; d++)
46  {
47  v += coeff[d] * P.R[i][d];
48  }
49  G[i] = coeff;
50  }
51  L = 0.0;
53  return log_value_;
54  }
std::complex< T > convertValueToLog(const std::complex< T > &logpsi)
evaluate log(psi) as log(|psi|) and phase
#define OHMMS_DIM
Definition: config.h:64
TinyVector< ValueType, 3 > coeff
Definition: LinearOrbital.h:27
QTBase::ValueType ValueType
Definition: Configuration.h:60

◆ getClassName()

std::string getClassName ( ) const
inlineoverridevirtual

return class name

Implements WaveFunctionComponent.

Definition at line 36 of file LinearOrbital.h.

36 { return "LinearOrbital"; }

◆ ratio()

PsiValue ratio ( ParticleSet P,
int  iat 
)
inlineoverridevirtual

evaluate the ratio of the new to old WaveFunctionComponent value

Parameters
Pthe active ParticleSet
iatthe index of a particle
Returns
$ \psi( \{ {\bf R}^{'} \} )/ \psi( \{ {\bf R}\})$

Specialized for particle-by-particle move

Implements WaveFunctionComponent.

Definition at line 60 of file LinearOrbital.h.

60 { return 1.0; }

◆ ratioGrad()

PsiValue ratioGrad ( ParticleSet P,
int  iat,
GradType grad_iat 
)
inlineoverridevirtual

evaluate the ratio of the new to old WaveFunctionComponent value and the new gradient

Parameters
Pthe active ParticleSet
iatthe index of a particle
grad_iatGradient for the active particle

Reimplemented from WaveFunctionComponent.

Definition at line 64 of file LinearOrbital.h.

64 { return 1.0; }

◆ registerData()

void registerData ( ParticleSet P,
WFBufferType buf 
)
inlineoverridevirtual

For particle-by-particle move.

Requests space in the buffer based on the data type sizes of the objects in this class.

Parameters
Pparticle set
bufAnonymous storage

Implements WaveFunctionComponent.

Definition at line 66 of file LinearOrbital.h.

66 {}

◆ restore()

void restore ( int  iat)
inlineoverridevirtual

If a move for iat-th particle is rejected, restore to the content.

Parameters
iatindex of the particle whose new position was proposed

Ye: hopefully we can gradually move away from restore

Implements WaveFunctionComponent.

Definition at line 58 of file LinearOrbital.h.

58 {}

◆ updateBuffer()

LogValue updateBuffer ( ParticleSet P,
WFBufferType buf,
bool  fromscratch = false 
)
inlineoverridevirtual

For particle-by-particle move.

Put the objects of this class in the walker buffer or forward the memory cursor.

Parameters
Pparticle set
bufAnonymous storage
fromscratchrequest recomputing the precision critical pieces of wavefunction from scratch
Returns
log value of the wavefunction.

Implements WaveFunctionComponent.

Definition at line 68 of file LinearOrbital.h.

References LinearOrbital::evaluateLog(), ParticleSet::G, and ParticleSet::L.

69  {
70  return evaluateLog(P, P.G, P.L);
71  }
LogValue evaluateLog(const ParticleSet &P, ParticleSet::ParticleGradient &G, ParticleSet::ParticleLaplacian &L) override
evaluate the value of the WaveFunctionComponent from scratch
Definition: LinearOrbital.h:38

Member Data Documentation

◆ coeff


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