minsky::SwitchTensor Class Reference

Inheritance diagram for minsky::SwitchTensor:

Collaboration diagram for minsky::SwitchTensor:

Public Member Functions
void	setArguments (const std::vector< TensorPtr > &a, const Args &av={"", 0}) override
size_t	size () const override
	return number of elements in tensor - maybe less than hypercube.numElements if sparse More...
Timestamp	timestamp () const override
	timestamp indicating how old the dependendent data might be. Used in CachedTensorOp to determine when to invalidate the cache More...
double	operator[] (size_t i) const override
Public Member Functions inherited from civita::ITensor
	CLASSDESC_ACCESS (ITensor)
	ITensor ()
	ITensor (const Hypercube &hc)
	ITensor (Hypercube &&hc)
	ITensor (const std::vector< unsigned > &dims)
	ITensor (const ITensor &)=default
	ITensor (ITensor &&)=default
ITensor &	operator= (const ITensor &)=default
ITensor &	operator= (ITensor &&)=default
virtual	~ITensor ()
virtual const Hypercube &	hypercube () const
	information describing the axes, types and labels of this tensor More...
virtual const Hypercube &	hypercube (const Hypercube &hc)
virtual const Hypercube &	hypercube (Hypercube &&hc)
std::size_t	rank () const
std::vector< unsigned >	shape () const
void	imposeDimensions (const Dimensions &dimensions)
	impose dimensions according to dimension map dimensions More...
virtual const Index &	index () const
	the index vector - assumed to be ordered and unique More...
virtual double	operator[] (std::size_t) const =0
	return or compute data at a location More...
double	atHCIndex (std::size_t hcIdx) const
	returns the data value at hypercube index hcIdx, or NaN if More...
template<class T >
std::size_t	hcIndex (const std::initializer_list< T > &indices) const
template<class T >
double	operator() (const std::initializer_list< T > &indices) const
virtual void	setArgument (const TensorPtr &, const ITensor::Args &args={"", 0})
virtual void	setArguments (const TensorPtr &, const TensorPtr &, const ITensor::Args &args={})
virtual void	setArguments (const std::vector< TensorPtr > &a1, const std::vector< TensorPtr > &a2, const ITensor::Args &args={"", 0})
Public Member Functions inherited from minsky::OpState
void	setState (const OperationPtr &s) override
void	throw_error (const std::string &msg) const
Public Member Functions inherited from minsky::SetState
virtual	~SetState ()

Private Attributes
size_t	m_size =1
vector< TensorPtr >	args

Additional Inherited Members
Public Types inherited from civita::ITensor
using	Timestamp = std::chrono::time_point< std::chrono::high_resolution_clock >
Public Attributes inherited from minsky::OpState
OperationPtr	state
Protected Member Functions inherited from civita::ITensor
void	notImpl () const
Protected Attributes inherited from civita::ITensor
Hypercube	m_hypercube
Index	m_index

Detailed Description

Definition at line 1432 of file minskyTensorOps.cc.

Member Function Documentation

operator[]()

double minsky::SwitchTensor::operator[] ( size_t  i ) const

inlineoverride

Definition at line 1472 of file minskyTensorOps.cc.

                                               {
      if (args.size()<2) return nan("");

      double selector=0;
      if (args[0])
        {
          if (args[0]->rank()==0) // scalar selector, so broadcast
            selector = (*args[0])[0];
          else
            selector = (*args[0])[i];
        }
      const ssize_t idx = selector+1.5; // selector selects between args 1..n
      
      if (idx>0 && idx<int(args.size()))
        {
          if (args[idx]->rank()==0)
            return (*args[idx])[0];
          return args[idx]->atHCIndex(index()[i]);
        }
      return nan("");
    }

setArguments()

void minsky::SwitchTensor::setArguments ( const std::vector< TensorPtr > &  a, const Args &  av = {"",0}  )

inlineoverridevirtual

Reimplemented from civita::ITensor.

Definition at line 1437 of file minskyTensorOps.cc.

                                                                   {"",0}) override {
      args=a;
      if (args.size()<2)
        hypercube(Hypercube());
      else
        hypercube(args[1]->hypercube());
      
      m_size=1;
      set<size_t> indices;
      for (auto& i: args)
        {
          for (auto& j: i->index())
            checkCancel(), indices.insert(j);
          if (i->size()>1)
            {
              if (m_size==1)
                m_size=i->size();
              else if (m_size!=i->size())
                // TODO - should we check and throw on nonconformat hypercubes?
                throw_error("nonconformant tensor arguments in switch");
            }
        }
      m_index=indices;
      if (!m_index.empty()) m_size=m_index.size();
    }

size()

size_t minsky::SwitchTensor::size ( ) const

inlineoverridevirtual

return number of elements in tensor - maybe less than hypercube.numElements if sparse

Reimplemented from civita::ITensor.

Definition at line 1462 of file minskyTensorOps.cc.

{return m_size;}

timestamp()

Timestamp minsky::SwitchTensor::timestamp ( ) const

inlineoverridevirtual

timestamp indicating how old the dependendent data might be. Used in CachedTensorOp to determine when to invalidate the cache

Implements civita::ITensor.

Definition at line 1463 of file minskyTensorOps.cc.

                                         {
      Timestamp t;
      for (auto& i: args)
        {
          auto tt=i->timestamp();
          if (tt>t) t=tt;
        }
      return t;
    }

Member Data Documentation

args

vector<TensorPtr> minsky::SwitchTensor::args

private

Definition at line 1435 of file minskyTensorOps.cc.

m_size

size_t minsky::SwitchTensor::m_size =1

private

Definition at line 1434 of file minskyTensorOps.cc.

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

• engine/minskyTensorOps.cc