Calculate geometry: This function builds up the attributes (table rows) of all geometries (*.3db drawing files) on a trial basis. Attributes which lead to an “impossible” structure, such as a negative value for width across flats, are logged as an error. The calculation process may take a very long time (depending on catalog size).
Also see Section 5.12.7, “Classification according to CNSORDERNO / CNSTYPECODE ”.
Maximum number of parallel tests:
The initial display value (default value) corresponds to the available CPU cores (*2 for hyperthreading if available).
Leave this setting if there are no problems like a jerking mouse cursor, for example.
The reduction of parallel tests (CPU cores) by one or two (depending on the used machine), should leave enough performance for a trouble-free working.
However, be aware that a test itself can use multi-threading, so that using the half of cores does not automatically mean the use of half of the CPU. If also other CPU-intensive processes shall be started, then you have to consider theses, too.

