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--- dev:error_handling [2015/10/02 11:24] – [Error Handling] vondele
+++ dev:error_handling [2015/10/23 14:24] – oschuett
@@ Line 18: / Line 18: @@
 </code>
-cp_warn and CPWARN should be used sparingly, as they will produce output (and localLog files) from all MPI ranks. As such they are most useful for warning conditions that happen only on one of the ranks.
+<note important>
+Messages from ''CPWARN'' and ''cp_warn'' are only printed on the first MPI-rank.\\ Warnings issued on other ranks are ignored.
+</note>
 ===== Cheat Sheet =====