# sc::SCBlockInfo Class Reference

SCBlockInfo contains blocking information for the SCDimension class. More...

`#include <dim.h>`

Inheritance diagram for sc::SCBlockInfo:

List of all members.

## 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.

`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.

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

- dim.h