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There are 2 environmental variables, TMPDIR and MPE_LOG_FORMAT, that user
may need to set before the generation of logfiles :
-
MPE_LOG_FORMAT
-
:
determines the format of the logfile generated from the
execution of application linked with MPE logging libraries.
The allowed value for MPE_LOG_FORMAT are CLOG, SLOG and
ALOG. When MPE_LOG_FORMAT is NOT set, CLOG is assumed.
-
TMPDIR
-
:
specifies a directory to be used as temporary storage for each
process. By default, when TMPDIR is NOT set, /tmp will be used.
When user needs to generate a very large logfile for long-running
MPI job, user needs to make sure that TMPDIR is big enough to
hold the temporary logfile which will be deleted if the
merged logfile can be created successfully. In order to
minimize the overhead of the logging to the MPI program, it is
highly recommended user to use a *local* file system for TMPDIR.
Note : The final merged logfile will be written back to the
file system where process 0 is.



Up: Using MPE
Next: Utility Programs
Previous: Example Makefile