This tab allows you to specify the following:
- Execution Mode. The Generate stage executes in Sequential
mode by default. You can select Parallel mode to generate data sets in separate
partitions.
- Combinability mode. This is Auto by default, which
allows InfoSphere® DataStage® to
combine the operators that underlie parallel stages so that they run in the
same process if it is sensible for this type of stage.
- Preserve partitioning. This is Propagate by
default. If you have an input data set, it adopts Set or Clear from
the previous stage. You can explicitly select Set or Clear.
Select Set to request the next stage should attempt
to maintain the partitioning.
- Node pool and resource constraints. Select this option
to constrain parallel execution to the node pool or pools or resource
pool or pools specified in the grid. The grid allows you to make choices from
drop down lists populated from the Configuration file.
- Node map constraint. Select this option to constrain
parallel execution to the nodes in a defined node map. You can define a node
map by typing node numbers into the text box or by clicking the browse button
to open the Available Nodes dialog box and selecting
nodes from there. You are effectively defining a new node pool for this stage
(in addition to any node pools defined in the Configuration file).
IBM InfoSphere DataStage and InfoSphere QualityStage, Version 8.5
This topic is also in the IBM InfoSphere DataStage and QualityStage Parallel Job Developer's Guide.
