Changeset 4182 for palm/trunk/SOURCE/poismg_mod.f90

Timestamp:

Aug 22, 2019 3:20:23 PM (5 years ago)

Author:

scharf

Message:

• corrected "Former revisions" section
• minor formatting in "Former revisions" section
• added "Author" section

File:

• palm/trunk/SOURCE/poismg_mod.f90 (modified) (1 diff)

palm/trunk/SOURCE/poismg_mod.f90

@@ -25 +25 @@
 ! -----------------
 ! $Id$
+! Corrected "Former revisions" section
+! 
+! 3725 2019-02-07 10:11:02Z raasch
 ! unused subroutine removed
 ! 
 ! 3655 2019-01-07 16:51:22Z knoop
 ! unnecessary check eliminated
-! 
+!
+! Following optimisations have been made:
+! - vectorisation (for Intel-CPUs) of the red-black algorithm by resorting
+!   array elements with even and odd indices
+! - explicit boundary conditions for building walls removed (solver is
+!   running through the buildings
+! - reduced data transfer in case of ghost point exchange, because only
+!   "red" or "black" data points need to be exchanged. This is not applied
+!   for coarser grid levels, since for then the transfer time is latency bound
+!
 !
 ! Description: