[Fransje]

Good afternoon Foamers!

After encountering a problem during a multi-processor run, I've been digging deeper in the multi-processor code to try and understand what was happening and what I could be doing wrong.

Along the way I encountered mapDistribute::distribute and I was wondering if some experienced mpp programmer could explain to me what exactly is happening in the code:

mapDistribute::distribute
(
    Pstream::defaultCommsType,
    distMap.schedule(),
    distMap.constructSize(),
    distMap.subMap(),
    distMap.constructMap(),
    allUValues
);

Is the variable allUValues being synchronized on all processors? Is it being reassembled on all processors? Or is something else happening?

Looking forward to your help and reply!

Kind regards,

Francois.