Changes between Version 33 and Version 34 of doc/tec/nesting

Timestamp:

Apr 5, 2019 3:19:17 PM (6 years ago)

Author:

hellstea

Comment:

--

doc/tec/nesting

@@ -17 +17 @@
 The self-nesting can be operated as a 1-way nesting, where only the anterpolation step is omitted, i.e. there is no feedback in the parent by the child model, and as a 2-way nesting, where parent and child solution mutually depend on each other. 
 
-Child domains can be recursively nested within each other under the condition that the child domain fits completely into its respective parent domain. Child domains can also be parallel to each other sharing the same parent domain, but the parallel child domains must not overlap each other. Recursive and parallel children may co-exist in the same run. Please note also that the parent / child grid spacing ratios in each coordinate direction must be integer valued. This also implies that vertical grid stretching is not allowed in nested runs except in the root domain above the top level of the highest nest-domain. The domain decomposition (pe grid) of all children must be such that the subdomain size is never smaller than the parent grid-spacing in the respective direction.  
+Child domains can be recursively nested within each other under the condition that the child domain fits completely into its respective parent domain. Child domains can also be parallel to each other sharing the same parent domain, but the parallel child domains must not overlap each other. Recursive and parallel children may co-exist in the same run. Please note also that all the parent grid lines must match the child grid lines, and thus also the spacing ratios in each coordinate direction must be integer valued. This also implies that vertical grid stretching is not allowed in nested runs except in the root domain above the top level of the highest nest-domain. The domain decomposition (pe grid) of all children must be such that the subdomain size is never smaller than the parent grid-spacing in the respective direction.  
 
 To apply the self nesting, the namelist [wiki:doc/app/nestpar#nesting_parameters &nesting_parameters] must be provided.