def prepare_communication (self):
RectPartitioner.prepare_communication (self)<EOL>if self.lower_neighbors[<NUM_LIT:0>]>=<NUM_LIT:0>:<EOL><INDENT>self.in_lower_buffers = [zeros(<NUM_LIT:1>, float)]<EOL>self.out_lower_buffers = [zeros(<NUM_LIT:1>, float)]<EOL><DEDENT>if self.upper_neighbors[<NUM_LIT:0>]>=<NUM_LIT:0>:<EOL><INDENT>self.in_upper_buffers = [zeros(<NUM_LIT:1>, float)]<EOL>self.out_upper_buffers = [zeros(<NUM_LIT:1>, float)]<EOL><DEDENT>
Prepare the buffers to be used for later communications