Ein Auszug aus dem Quartus-Handbuch. Für jedes Projekt kann man angeben,
wie man das haben will.
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Parallel compilation:
Allows you to specify the number of processors the Quartus II software
can use at once to run parallel executables, which reduces execution
time.
When you run any parallel executable with parallel compilation enabled,
you can find information about the average processor use, the maximum
number of processors used, and the amount of time the processors used in
the Parallel Compilation Report.
...
For example, if you have a quad-core processor machine and want to leave
one processor free for other tasks, you would specify 3 as the setting
of this option. Setting this option to 1 effectively disables parallel
compilation.
Currently, only some Quartus II software executables, such as
quartus_fit, are parallel, so when you set this option to a value
greater than 1, a portion of the Quartus II software processing still
occupies only one processor.
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