ClientSideData

Rough Draft

Requirements

• Support general-purpose collection of complete data sets from one-to-many parallel servers to the client.
• Support collection of time-varying data from one-to-many parallel servers to the client, e.g: retrieve the value at a specific point/cell over time.
• For scalability, support special-purpose collection of data subsets from one-to-many parallel servers to the client.

Implementation

• A new class, vtkSMClientSideDataProxy, has been created for general-purpose work: it collects a complete vtkDataSet from the servers. To use it, use the AddInput() method to connect it to a source proxy, then call GetCollectedData() to return a vtkDataSet. Internally, it uses vtkMPIMoveData to handle the transfer of data from server(s) to client.

Examples

An example of client side data in action: the histogram in this screenshot was generated directly from the vtkDataSet transmitted to the client:

Sample plot of cell data varying over time, for a specified cell: