This command closes the current SPPARKS log file, opens a new file with the specified name, and begins logging information to it. If the specified file name is none, then no new log file is opened.
If multiple processor partitions are being used, the file name should be a variable, so that different processors do not attempt to write to the same log file.
The file "log.spk" is the default log file for a SPPARKS run. The name of the initial log file can also be set by the command-line switch -log. See this section for details.
Related commands: none
The default SPPARKS log file is named log.spk