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PLMD::ActionWithArguments Class Referenceabstract

This is used to create PLMD::Action objects that take the output from some other Action as input. More...

#include <ActionWithArguments.h>

Inheritance diagram for PLMD::ActionWithArguments:
Inheritance graph
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Public Types

typedef std::vector< Action * > Dependencies
 
typedef std::set< FILE * >
::iterator 
files_iterator
 

Public Member Functions

double getProjection (unsigned i, unsigned j) const
 Get the scalar product between the gradients of two variables. More...
 
double getArgument (const unsigned n) const
 Returns the value of an argument. More...
 
ValuegetPntrToArgument (const unsigned n)
 Return a pointer to specific argument. More...
 
unsigned getNumberOfArguments () const
 Returns the number of arguments. More...
 
double difference (int, double, double) const
 Takes the difference taking into account pbc for arg i. More...
 
double bringBackInPbc (int i, double d1) const
 Takes one value and brings it back into the pbc of argument i. More...
 
void parseArgumentList (const std::string &key, std::vector< Value * > &args)
 Parse a list of arguments. More...
 
void requestArguments (const std::vector< Value * > &arg)
 Setup the dependencies. More...
 
void addForcesOnArguments (const std::vector< double > &forces)
 Add forces to arguments (used in apply) More...
 
 ActionWithArguments (const ActionOptions &)
 
virtual ~ActionWithArguments ()
 
virtual void calculateNumericalDerivatives (ActionWithValue *a=NULL)
 Calculate the numerical derivatives N.B. More...
 
void lockRequests ()
 
void unlockRequests ()
 
std::vector< Value * > & getArguments ()
 Returns an array of pointers to the arguments. More...
 
void interpretArgumentList (const std::vector< std::string > &c, std::vector< Value * > &arg)
 Convert a list of argument names into a list of pointers to the values. More...
 
void addDependency (Action *)
 Specify that this Action depends on another one. More...
 
void clearDependencies ()
 Clear the dependence list for this Action. More...
 
long int getStep () const
 Return the present timestep. More...
 
double getTime () const
 Return the present time. More...
 
double getTimeStep () const
 Return the timestep. More...
 
template<class T >
void parse (const std::string &key, T &t)
 Parse one keyword as generic type. More...
 
template<class T >
bool parseNumbered (const std::string &key, const int no, T &t)
 Parse one numbered keyword as generic type. More...
 
template<class T >
void parseVector (const std::string &key, std::vector< T > &t)
 Parse one keyword as std::vector. More...
 
template<class T >
bool parseNumberedVector (const std::string &key, const int no, std::vector< T > &t)
 Parse a vector with a number. More...
 
void parseFlag (const std::string &key, bool &t)
 Parse one keyword as boolean flag. More...
 
void error (const std::string &msg) const
 Crash calculation and print documentation. More...
 
void warning (const std::string &msg)
 Issue a warning. More...
 
void exit (int c=0)
 Exit with error code c. More...
 
void checkRead ()
 Check if Action was properly read. More...
 
virtual void prepare ()
 Prepare an Action for calculation This can be used by Action if they need some special preparation before calculation. More...
 
virtual void calculate ()=0
 Calculate an Action. More...
 
virtual void apply ()=0
 Apply an Action. More...
 
virtual void update ()
 Update. More...
 
virtual void runFinalJobs ()
 RunFinalJobs This method is called once at the very end of the calculation. More...
 
void fflush ()
 Tell to the Action to flush open files. More...
 
virtual std::string getDocumentation () const
 
const std::string & getLabel () const
 Returns the label. More...
 
const std::string & getName () const
 Returns the name. More...
 
virtual void activate ()
 Set action to active. More...
 
virtual void setOption (const std::string &s)
 
virtual void clearOptions ()
 
virtual void deactivate ()
 Set action to inactive. More...
 
bool isActive () const
 Check if action is active. More...
 
bool isOptionOn (const std::string &s) const
 Check if an option is on. More...
 
const DependenciesgetDependencies () const
 Return dependencies. More...
 
virtual bool checkNumericalDerivatives () const
 Check if numerical derivatives should be performed. More...
 
virtual bool checkNeedsGradients () const
 Check if the action needs gradient. More...
 
FILE * fopen (const char *path, const char *mode)
 Opens a file. More...
 
int fclose (FILE *fp)
 Closes a file opened with Action::fclose(). More...
 
void calculateFromPDB (const PDB &)
 Calculate the action given a pdb file as input. More...
 
virtual void readAtomsFromPDB (const PDB &)
 This is overwritten in ActionAtomistic so that we can read the atoms from the pdb input file rather than taking them from the MD code. More...
 
bool getExchangeStep () const
 Check if we are on an exchange step. More...
 
std::string cite (const std::string &s)
 Cite a paper see PlumedMain::cite. More...
 

Static Public Member Functions

static void registerKeywords (Keywords &keys)
 Registers the list of keywords. More...
 

Public Attributes

PlumedMainplumed
 Reference to main plumed object. More...
 
Loglog
 Reference to the log stream. More...
 
std::set< FILE * > files
 
Communicatorcomm
 
Communicatormulti_sim_comm
 
const Keywordskeywords
 

Protected Member Functions

void expandArgKeywordInPDB (PDB &pdb)
 This changes the arg keyword in the pdb file. More...
 

Private Attributes

std::vector< Value * > arguments
 
bool lockRequestArguments
 

Detailed Description

This is used to create PLMD::Action objects that take the output from some other Action as input.

This is used in PLMD::Function and PLMD::Bias PLMD::Action objects that inherit from PLMD::ActionWithArguments take values and components calculated in other PLMD::Action objects and use this information to calculate some new function. If you have only one list of arguments you should use the reserved keyword ARG when you use parseArgumentList.

Member Typedef Documentation

typedef std::vector<Action*> PLMD::Action::Dependencies
inherited
typedef std::set<FILE*>::iterator PLMD::Action::files_iterator
inherited

Constructor & Destructor Documentation

PLMD::ActionWithArguments::ActionWithArguments ( const ActionOptions ao)
virtual PLMD::ActionWithArguments::~ActionWithArguments ( )
inlinevirtual

Member Function Documentation

void PLMD::Action::activate ( )
virtualinherited

Set action to active.

void PLMD::Action::addDependency ( Action action)
inherited

Specify that this Action depends on another one.

void PLMD::ActionWithArguments::addForcesOnArguments ( const std::vector< double > &  forces)

Add forces to arguments (used in apply)

virtual void PLMD::Action::apply ( )
pure virtualinherited
double PLMD::ActionWithArguments::bringBackInPbc ( int  i,
double  d1 
) const
inline

Takes one value and brings it back into the pbc of argument i.

virtual void PLMD::Action::calculate ( )
pure virtualinherited

Calculate an Action.

This method is called one or more times per step. The set of all Actions is calculated in forward order.

Implemented in PLMD::bias::MetaD, PLMD::function::FuncSumHills, PLMD::function::Matheval, PLMD::function::FuncPathMSD, PLMD::analysis::Analysis, PLMD::RDC, PLMD::colvar::Distance, PLMD::bias::MovingRestraint, PLMD::generic::WholeMolecules, PLMD::multicolvar::ActionVolume, PLMD::generic::Group, PLMD::bias::External, PLMD::generic::DumpAtoms, PLMD::generic::FitToTemplate, PLMD::bias::ABMD, PLMD::colvar::Angle, PLMD::multicolvar::MultiColvarFunction, PLMD::colvar::ContactMap, PLMD::function::Combine, PLMD::bias::BiasValue, PLMD::colvar::DRMSD, PLMD::colvar::Gyration, PLMD::colvar::NOE, PLMD::IMD, PLMD::secondarystructure::SecondaryStructureRMSD, PLMD::generic::RandomExchanges, PLMD::generic::Read, PLMD::colvar::PathMSDBase, PLMD::function::Piecewise, PLMD::colvar::Position, PLMD::vatom::Center, PLMD::colvar::Torsion, PLMD::multicolvar::DumpMultiColvar, PLMD::multicolvar::MultiColvar, PLMD::bias::LWalls, PLMD::bias::UWalls, PLMD::generic::Include, PLMD::generic::Print, PLMD::bias::Restraint, PLMD::analysis::Committor, PLMD::generic::Flush, PLMD::vatom::COM, PLMD::colvar::Energy, PLMD::function::Sort, PLMD::generic::DumpDerivatives, PLMD::colvar::Constant, PLMD::generic::DumpForces, PLMD::manyrestraints::ManyRestraintsBase, PLMD::function::Ensemble, PLMD::generic::Debug, PLMD::vatom::Ghost, PLMD::colvar::Dipole, PLMD::colvar::Cell, PLMD::colvar::ColvarFake, PLMD::colvar::Volume, PLMD::colvar::Template, PLMD::function::Target, PLMD::generic::Time, PLMD::generic::DumpProjections, PLMD::colvar::MultiRMSD, PLMD::colvar::RMSD, PLMD::colvar::CoordinationBase, PLMD::ActionSetup, and PLMD::mapping::PathBase.

void PLMD::Action::calculateFromPDB ( const PDB pdb)
inherited

Calculate the action given a pdb file as input.

This is used to initialize things like distance from a point in CV map space given a pdb as an input file

void PLMD::ActionWithArguments::calculateNumericalDerivatives ( ActionWithValue a = NULL)
virtual

Calculate the numerical derivatives N.B.

only pass an ActionWithValue to this routine if you know exactly what you are doing. The default will be correct for the vast majority of cases

Reimplemented from PLMD::Action.

Reimplemented in PLMD::analysis::Analysis, and PLMD::mapping::Mapping.

virtual bool PLMD::Action::checkNeedsGradients ( ) const
inlinevirtualinherited

Check if the action needs gradient.

Reimplemented in PLMD::bias::MetaD, and PLMD::generic::DumpProjections.

virtual bool PLMD::Action::checkNumericalDerivatives ( ) const
inlinevirtualinherited

Check if numerical derivatives should be performed.

Reimplemented in PLMD::ActionWithValue.

void PLMD::Action::checkRead ( )
inherited

Check if Action was properly read.

This checks if Action::line is empty. It must be called after a final Action has been initialized

std::string PLMD::Action::cite ( const std::string &  s)
inherited

Cite a paper see PlumedMain::cite.

void PLMD::Action::clearDependencies ( )
inherited

Clear the dependence list for this Action.

void PLMD::Action::clearOptions ( )
virtualinherited
void PLMD::Action::deactivate ( )
inlinevirtualinherited

Set action to inactive.

double PLMD::ActionWithArguments::difference ( int  i,
double  d1,
double  d2 
) const
inline

Takes the difference taking into account pbc for arg i.

void PLMD::Action::error ( const std::string &  msg) const
inherited

Crash calculation and print documentation.

void PLMD::Action::exit ( int  c = 0)
inherited

Exit with error code c.

void PLMD::ActionWithArguments::expandArgKeywordInPDB ( PDB pdb)
protected

This changes the arg keyword in the pdb file.

int PLMD::Action::fclose ( FILE *  fp)
inherited

Closes a file opened with Action::fclose().

void PLMD::Action::fflush ( )
inherited

Tell to the Action to flush open files.

FILE * PLMD::Action::fopen ( const char *  path,
const char *  mode 
)
inherited

Opens a file.

This is similar to plain fopen, but with some extra functionality.

  • When opened for writing, processors other than the one with rank 0 just open /dev/null
  • PlumedMain::fopen is used, so that other tricks may appear (see PlumedMain::fopen)
double PLMD::ActionWithArguments::getArgument ( const unsigned  n) const
inline

Returns the value of an argument.

std::vector< Value * > & PLMD::ActionWithArguments::getArguments ( )
inline

Returns an array of pointers to the arguments.

const Dependencies& PLMD::Action::getDependencies ( ) const
inlineinherited

Return dependencies.

std::string PLMD::Action::getDocumentation ( ) const
virtualinherited
bool PLMD::Action::getExchangeStep ( ) const
inherited

Check if we are on an exchange step.

const std::string & PLMD::Action::getLabel ( ) const
inlineinherited

Returns the label.

const std::string & PLMD::Action::getName ( ) const
inlineinherited

Returns the name.

unsigned PLMD::ActionWithArguments::getNumberOfArguments ( ) const
inline

Returns the number of arguments.

Value * PLMD::ActionWithArguments::getPntrToArgument ( const unsigned  n)
inline

Return a pointer to specific argument.

double PLMD::ActionWithArguments::getProjection ( unsigned  i,
unsigned  j 
) const

Get the scalar product between the gradients of two variables.

long int PLMD::Action::getStep ( ) const
inherited

Return the present timestep.

double PLMD::Action::getTime ( ) const
inherited

Return the present time.

double PLMD::Action::getTimeStep ( ) const
inherited

Return the timestep.

void PLMD::ActionWithArguments::interpretArgumentList ( const std::vector< std::string > &  c,
std::vector< Value * > &  arg 
)

Convert a list of argument names into a list of pointers to the values.

bool PLMD::Action::isActive ( ) const
inlineinherited

Check if action is active.

bool PLMD::Action::isOptionOn ( const std::string &  s) const
inlineinherited

Check if an option is on.

void PLMD::ActionWithArguments::lockRequests ( )
inlinevirtual

Reimplemented from PLMD::Action.

Reimplemented in PLMD::mapping::Mapping.

template<class T >
void PLMD::Action::parse ( const std::string &  key,
T &  t 
)
inherited

Parse one keyword as generic type.

void PLMD::ActionWithArguments::parseArgumentList ( const std::string &  key,
std::vector< Value * > &  args 
)

Parse a list of arguments.

void PLMD::Action::parseFlag ( const std::string &  key,
bool &  t 
)
inherited

Parse one keyword as boolean flag.

template<class T >
bool PLMD::Action::parseNumbered ( const std::string &  key,
const int  no,
T &  t 
)
inherited

Parse one numbered keyword as generic type.

template<class T >
bool PLMD::Action::parseNumberedVector ( const std::string &  key,
const int  no,
std::vector< T > &  t 
)
inherited

Parse a vector with a number.

template<class T >
void PLMD::Action::parseVector ( const std::string &  key,
std::vector< T > &  t 
)
inherited

Parse one keyword as std::vector.

void PLMD::Action::prepare ( )
virtualinherited

Prepare an Action for calculation This can be used by Action if they need some special preparation before calculation.

Typical case is for collective variables which would like to change their list of requested atoms. By default (if not overridden) does nothing.

Reimplemented in PLMD::function::FuncPathMSD, PLMD::analysis::Analysis, PLMD::multicolvar::MultiColvarBase, PLMD::multicolvar::ActionVolume, PLMD::mapping::Mapping, PLMD::secondarystructure::SecondaryStructureRMSD, PLMD::generic::Read, PLMD::generic::Print, PLMD::colvar::Energy, and PLMD::colvar::CoordinationBase.

virtual void PLMD::Action::readAtomsFromPDB ( const PDB )
inlinevirtualinherited

This is overwritten in ActionAtomistic so that we can read the atoms from the pdb input file rather than taking them from the MD code.

Reimplemented in PLMD::ActionAtomistic.

void PLMD::ActionWithArguments::registerKeywords ( Keywords keys)
static

Registers the list of keywords.

void PLMD::ActionWithArguments::requestArguments ( const std::vector< Value * > &  arg)

Setup the dependencies.

virtual void PLMD::Action::runFinalJobs ( )
inlinevirtualinherited

RunFinalJobs This method is called once at the very end of the calculation.

The set of all Actions in run for the final time in forward order.

Reimplemented in PLMD::analysis::Analysis.

void PLMD::Action::setOption ( const std::string &  s)
virtualinherited
void PLMD::ActionWithArguments::unlockRequests ( )
inlinevirtual

Reimplemented from PLMD::Action.

Reimplemented in PLMD::mapping::Mapping.

virtual void PLMD::Action::update ( )
inlinevirtualinherited
void PLMD::Action::warning ( const std::string &  msg)
inherited

Issue a warning.

Member Data Documentation

std::vector<Value*> PLMD::ActionWithArguments::arguments
private
Communicator& PLMD::Action::comm
inherited
std::set<FILE*> PLMD::Action::files
inherited
const Keywords& PLMD::Action::keywords
inherited
bool PLMD::ActionWithArguments::lockRequestArguments
private
Log& PLMD::Action::log
inherited

Reference to the log stream.

Communicator& PLMD::Action::multi_sim_comm
inherited
PlumedMain& PLMD::Action::plumed
inherited

Reference to main plumed object.


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