The Mathworks, Inc.

Paulo J Pacheco

Peter S Szpak

Christian Robl

Martin Orehek

Donald P Orofino, Ii

Ricardo A Losada

Masud Ahmed

Donald Paul Orofinio, Ii

Scheduling techniques transform dataflow graphs (DFGs), for example, of digital signal processing (DSP) arrangements of filters, into efficient schedules for concurrent execution on processing resources coupled to a memory. A DSP arrangement may be represented by an executable model having interconnected filters represented by model elements. The techniques may apply scheduling transforms according to a classification of the model elements based on a lifetime of their internal states (e.g., finite or infinite). Exemplary scheduling transforms may include unfolding, coordinated loop scheduling and pipelining to parallelize a DFG and enhance overall performance, i.e., reduce average sample execution time of the DSP arrangement. Notably, the scheduling transforms may aggregate (i.e., merge) multiple finite state model elements for concurrent execution and repeat execution of infinite state model elements to achieve the overall improved performance.

Scheduling technique to transform dataflow graph into efficient schedule

A system may identify a workflow associated with a graphical model and execute the workflow in a number of stages. The system may display a number of components of the graphical model and identify which of the displayed components are associated with or affected by execution of a current one of the stages of the workflow.

System and method for synchronized workflow management

A workflow manager that offers structure and control over the graphical modeling environment so that the graphical modeling environment is reconfigured in a manner appropriate for a particular workflow is disclosed. The workflow manager of the present invention provides hierarchical task management that is synchronized to the graphical modeling environment. The workflow manager also allows a model designer to navigate a series of steps required to achieve the goal of a particular workflow. An API allows the steps to be customized as required by the end user.

A method for retaining state information of a digital filter object in a dynamically typed text-based programming environment is disclosed. The digital filter object retains state information which includes the minimal amount of information that is necessary to determine the output of the digital filter object. The digital filter object generates the output of the object in response to the input of the object depending on the state information of the object. The state of the filter is stored in a memory and provided to the object as an initial value of the state of the object.

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Westport, MA, United States of America

Paulo J Pacheco