pymor.algorithms.simplify

Module Contents

Classes

ExpandRules

Define algorithm by a table of match conditions and corresponding actions.

Functions

expand

Expand concatenations of LincombOperators.

pymor.algorithms.simplify.expand(obj)

Expand concatenations of LincombOperators.

To any given Operator or Model, the following transformations are applied recursively:

• Concatenations of LincombOperators are expanded. E.g.

  (O1 + O2) @ (O3 + O4)
  

  becomes:

  O1 @ O3 + O1 @ O4 + O2 @ O3 + O2 @ O4
  

• LincombOperators inside LincombOperators are merged into a single LincombOperator

• ConcatenationOperators inside ConcatenationOperators are merged into a single ConcatenationOperator.

Parameters

obj

Either a Model or an Operator to which the expansion rules are applied recursively for all children.

Returns

The transformed object.

class pymor.algorithms.simplify.ExpandRules

Bases: pymor.algorithms.rules.RuleTable

Define algorithm by a table of match conditions and corresponding actions.

RuleTable manages a table of rules, stored in the rules attributes, which can be applied to given objects.

A new table is created by subclassing RuleTable and defining new methods which are decorated with match_class, match_generic or another rule subclass. The order of the method definitions determines the order in which the defined rules are applied.

Parameters

use_caching

If True, cache results of apply.

rules

list of all defined rules.

action_LincombOperator(self, op)

action_ConcatenationOperator(self, op)

action_recurse(self, op)