EpetraVector

class dolfin.cpp.la.EpetraVector(*args)

Bases: dolfin.cpp.la.GenericVector

This class provides a simple vector class based on Epetra. It is a simple wrapper for an Epetra vector object (Epetra_FEVector) implementing the GenericVector interface.

The interface is intentionally simple. For advanced usage, access the Epetra_FEVector object using the function vec() or vec_ptr() and use the standard Epetra interface.

Overloaded versions

• EpetraVector(type=”global”)

  Create empty vector

• EpetraVector(N, type=”global”)

  Create vector of size N

• EpetraVector(x)

  Copy constructor

• EpetraVector(vector)

  Create vector view from given Epetra_FEVector pointer

• EpetraVector(map)

  Create vector from given Epetra_BlockMap

gather()

Overloaded versions

• gather(x, indices)

  Gather entries into local vector x

• gather(x, indices)

  Gather entries into x

get_local()

Get all values on local process

reset()

Reset Epetra_FEVector

resize()

Overloaded versions

• resize(N)

  Resize vector to size N

• resize(range)

  Resize vector with given ownership range

• resize(range, ghost_indices)

  Resize vector with given ownership range and with ghost values

sum()

Overloaded versions

• sum()

  Return sum of values of vector

• sum(rows)

  Return sum of selected rows in vector

thisown

The membership flag

vec()

Return the Epetra_FEVector