Tutorial: Reducing Trace File Size for IntelĀ® Trace Analyzer and Collector
The
SYMBOL
option is a shortcut for STATE "**:<pattern>".
Define the SYMBOL setting in the configuration file if you want the IntelĀ® Trace Collector to collect data on all Allreduce functions, both from MPI and from user code.
To do this:
Create a new configuration file.
In the configuration file, specify the SYMBOL option:
SYMBOL *:Allreduce ON
Save the configuration file: my_settings_symbol.conf.
Set the VT_CONFIG environment variable to the directory that contains the configuration file:
VT_CONFIG=/<configuration file path name>/my_settings_symbol.conf
Run the application.
Linux* OS:
$ mpirun -trace -n 4 ./poisson
Windows* OS:
> mpiexec -n 4 poisson.exe