Server Jobs and Parallel Jobs are fundamentally different in the types of Job designs which they can support. In particular, Server stages support a number of capabilities distinct form their Parallel equivalents .
For example, some Server stages …
support the concurrent reading from and writing to a single data store,
support multiple input and/or output links, sometimes using different data stores for each link
have no Parallel equivalent
These differences result in Parallel jobs looking structurally different to their Server ancestors. In particular a Parallel job may differ from its Server ancestor by…
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representing a Server stage with a different Parallel stage,
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representing a single Server stage with multiple Parallel stages, or
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These
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Finally, note that these structural changes can be applied iteratively, so S2PX may construct a Shared Container (for example) which may itself, due to the nature of its constituent parts, require further decomposition.
All these structural differences are described in the following pages.
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