BlockDescriptor Class Reference

#include <fei_BlockDescriptor.hpp>

Public Member Functions
int	setNumNodesPerElement (int numNodes)
int **	fieldIDsTablePtr ()

Detailed Description

The BlockDescriptor class holds the information that the FEI implementation needs to know about an element-block in the finite element problem:

Global block identifier number of nodes per element in this block list containing the number-of-fields-per-node table containing the field identifiers for those nodal fields interleaveStrategy lumpingStrategy number of elements in this block number of element-DOF per element in this block the first element-DOF equation number for each block total number of equations associated with each element

A block is a collection of homogeneous elements – which means that all elements in a block have the same topology: number of nodes, same solution fields at those nodes, etc.

Usage notes:

There is only one way to set each length/size parameter in this class, and only one way to retrieve each length/size parameter. e.g., you can't set the number of nodes to be one thing, then pass a different value to a function that allocates the fieldsPerNode list. When you set the number of nodes, the fieldsPerNode list is allocated right then. When you retrieve the fieldsPerNode list, you must obtain its length by separately calling the getNumNodesPerElement() function. Similar schemes are in place for the fieldIDsTable, etc.

There are some order-dependencies for these member functions.

• setNumNodesPerElement should be called before fieldsPerNodePtr() is called, because fieldsPerNodePtr returns a list of length numNodesPerElem.
• then, in turn, fieldsPerNodePtr() should be called, and the entries of that list should be set, before allocateFieldIDsTable is called, because the row-lengths of the fieldIDsTable are given by the entries in the fieldsPerNode list.
• naturally allocateFieldIDsTable should be called before fieldIDsTablePtr() is called.
• setNumElemDOFPerElement should be called before elemDOFEqnNumbersPtr(), because elemDOFEqnNumbersPtr returns a list of length numElemDOFPerElem.

In general, out-of-order function calls will be flagged with a message to stderr.

Definition at line 67 of file fei_BlockDescriptor.hpp.

Member Function Documentation

int BlockDescriptor::setNumNodesPerElement

(

int

numNodes

)

Number of nodes per element, in this element-block.

Definition at line 60 of file fei_BlockDescriptor.cpp.

int** BlockDescriptor::fieldIDsTablePtr ( )

inline

Table of field-IDs. number-of-rows is getNumNodesPerElement() The row-lengths are given by the fieldsPerNodePtr() list.

Definition at line 88 of file fei_BlockDescriptor.hpp.

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

• fei_BlockDescriptor.hpp
• fei_BlockDescriptor.cpp