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--- dev:error_handling [2015/10/02 11:24] – [Error Handling] vondele
+++ dev:error_handling [2022/08/16 16:02] (current) – typo oschuett
@@ Line 1: / Line 1: @@
 ====== Error Handling ======
-In CP2K there exist three convenient macros for error handling. They are defined in [[src>cp2k/src/common/cp_common_uses.f90]], and are therefore always available. However, these macros can only be used for **short messages** (approximately less than 7 words), because of Fortran's line length limitation.
+In CP2K there exist three convenient macros for error handling. They are defined in [[src>src/base/base_uses.f90]], and are therefore always available. However, these macros can only be used for **short messages** (approximately less than 7 words), because of Fortran's line length limitation.
 <code Fortran>
    CPWARN("A short warning message")
@@ Line 10: / Line 10: @@
 For longer messages one can use these two routines:
 <code Fortran>
-   CALL cp_warn(__LOCATION__,"A long warning message "\\&
+   CALL cp_warn(__LOCATION__,"A long warning message "//&
-                "which can span multiple lines and contains "\\&
+                "which can span multiple lines and contains "//&
                 "some valuable advice for the user.")
-   CALL cp_abort(__LOCATION__,"A long error message "\\&
+   CALL cp_abort(__LOCATION__,"A long error message "//&
-                 "with even more valuable advises.")
+                 "with even more valuable advices.")
 </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 =====