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NAME

       sc::SCBlockInfo -

       SCBlockInfo contains blocking information for the SCDimension class.

SYNOPSIS

       #include <dim.h>

       Inherits sc::SavableState.

   Public Member Functions
       SCBlockInfo (int n, int nblocks=0, const int *blocksizes=0)
           Create a SCBlockInfo object.
       SCBlockInfo (StateIn &)
       SCBlockInfo (const Ref< KeyVal > &keyval)
           The KeyVal constructor.
       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.
       int equiv (SCBlockInfo *bi)
           Return nonzero if this is equivalent to bi.
       int nelem () const
           Return the total number of elements.
       int nblock () const
           Return the number of blocks.
       int start (int i) const
           Return the starting index for block i.
       int size (int i) const
           Return the size of block i.
       int fence (int i) const
           Return the last index + 1 for block i.
       void elem_to_block (int i, int &block, int &offset)
       RefSCDimension subdim (int i)
           Retreive subdimension information.
       void set_subdim (int i, const RefSCDimension &dim)
           Set subdimension information.
       void print (std::ostream &o=ExEnv::out0()) const
           Print the object to the stream o.

   Protected Member Functions
       void init_start ()

   Protected Attributes
       int n_
       int nblocks_
       int * start_
       int * size_
       RefSCDimension * subdims_

Detailed Description

       SCBlockInfo contains blocking information for the SCDimension class.

       There are really two ways that it can contain blocking information. In
       the first way, a vector of block offsets and block sizes is stored. The
       second method is only used by those specializations created by the
       BlockedSCMatrixKit class. In this method the blocking information is
       stored as subdimensions of type SCDimension. If both methods are used,
       they must be used consistently. That is, the number, sizes, and order
       of the blocks must match the number, sizes, and order of the
       SCDimension objects.

Constructor & Destructor Documentation

   sc::SCBlockInfo::SCBlockInfo (const Ref< KeyVal > & keyval)
       The KeyVal constructor. .IP "sizes" 1c This is a vector giving the size
       of each subblock. There is no default.

       subdims
           If this vector is given there is must be entry for each entry in
           the sizes vector. Each entry is an SCDimension object. The default
           is to not store subdimension information.

Member Function Documentation

   void sc::SCBlockInfo::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.

   void sc::SCBlockInfo::set_subdim (int i, const RefSCDimension & dim)
       Set subdimension information. The dimension dim and index i must be
       consistent with the nblocks and blocksizes information given to the
       constructor.

Author

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