1.7

Merge Engine Scheduling
This preferences page defines how different instances and speed units are attributed to
different jobs when creating Content Items (Print Content, as well as Web and Email output
generation). For information on the terminology and some performance tips, see Performance
Considerations. Note that in this dialog, the use of the word "Engine" is synonymous to both
"Instance" and "Speed Unit" since a single Speed Unit can be used for each Engine.
Email and Web output is generated only with the Merge Engine and thus their output speed is
limited through this engine. However, the output speed of Print jobs is limited through the
Weaver Engine, so when Print Content is generated through the Merge Engine, its speed is not
limited. Additionally, you may launch up to 256 engines for Print Content generation, but Email
and Web may only use the number of engines permitted by your license.
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Use one internal engine: Check to limit to a single instance of the server. Useful for
computers that run below the recommended System requirements, or demo machines.
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Total Engines Available: Read-only box indicating the current number of engines that
are active or available.
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Engines Launched: Enter the total number of Merge Engines desired on this server.
When changing the number of engines, it is necessary to save this dialog (Apply) and
restart the OLConnect_Server service to actually apply the changes.
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Reserved Count: Read-only box indicating the total number of "Reserved" engines, as
set in the Speed unit reservations area below.
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Restart After (mins): Due to a currently unfixable memory leak in some libraries used by
PlanetPress Connect, it is necessary to restart our engines after a certain amount of time.
The default is generally sufficient for all our clients. Only change on the advice of a
technical support agent.
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Parallel speed units per job: This area determines how many engines (speed units) are
used for each job that runs through it. In short, if any specific type of job has more than
one parallel speed unit assigned to it, that many engines will be used to run each of its
jobs. This is in fact a multiplier of speed, however it is a divider of the number of jobs that
can be run simultaneously. You cannot attribute more parallel speed units than what you
have available for any specific type of job, and you require at least that number of floating
speed units, or reservations, for the required parallel speed units required.
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Speed unit reservations:This area is used to reserve speed units specifically for certain
types of jobs. Reserved speed units cannot be used by any other type of job.
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