no MPI remapping

Author: juliasloan25

src/Interfacer.jl

@@ -412,17 +412,19 @@ function remap end
 
 function remap(field::CC.Fields.Field, target_space::CC.Spaces.AbstractSpace)
     space = axes(field)
-    space_are_compatible =
+    spaces_are_compatible =
         space == target_space || CC.Spaces.issubspace(space, target_space) || CC.Spaces.issubspace(target_space, space)
 
+    @assert spaces_are_compatible || ClimaComms.context(space) isa ClimaComms.SingletonCommsContext "Remapping is not currently supported with MPI"
+
     # TODO: Handle remapping of Vectors correctly
     if hasproperty(field, :components)
         @assert length(field.components) == 1 "Can only work with simple vectors"
         field = field.components.data.:1
     end
 
     # If the spaces are the same or one is a subspace of the other, we can just return the input field
-    space_are_compatible && return field
+    spaces_are_compatible && return field
 
     # Get vector of LatLongPoints for the target space to get the hcoords
     # Copy fields onto CPU so we regrid on the CPU