June 5, 2023 at 7:06 amFAQParticipant
Starting with Fluent 18.2, the serial version of Fluent is replaced by a parallel version that uses one compute node. Therefore, the selective solver is no longer available. Instead, the aggregative AMG (AAMG) solver is used instead which was also the default setting in earlier versions. You can start the old serial version with the startup option “-t0”. This will be dropped in a future version. See also Fluent 18.2 migration manual, chapter “Updates affecting code behaviour”.
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