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_

   Additional Inherited Members

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.

       sizes
           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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