XIOS : "something must be wrong with mask index"
De LMDZPedia
In a simulation using XIOS et LMDZ in client-server mode, XIOS may generate the following message :
info : If domain dom_out does not have overlapped regions between processes something must be wrong with mask index
It is a harmless warning message, mainly for developers. It is just that with LMDZ there can be some overlap between output domains. If however you are in a situation where you know there is no overlap between domains, then this message indicates that something must be wrong in the computation of transfer indexes between clients and servers.