global_settings

• type: action command.
• function: change global settings.

&global_settings
    long inhibit_fsync = 0;
    long echo_namelists = 1;
    STRING log_file = NULL;
    STRING error_log_file = NULL;
    long mpi_randomization_mode = 1;
&end

• inhibit_fsync -- By default, elegant forces file synchronization across a network file system to ensure that users see up-to-date files as soon as possible. In cases where a great deal of output is generated, this can degrade performance. Setting this parameter to 1 will turn off synchronization until the end of the run.
• echo_namelists - By default, elegant echoes all namelist input to the terminal. If this parameter is set to 0, this output will be inhibited.
• log_file -- By default, elegant writes status information to the terminal. If a filename is supplied for this parameter, the output will instead go to the file. On Linux and Unix, using /dev/null will result in the output being discarded.
• error_log_file -- By default, elegant writes error messages to the terminal. If a filename is supplied for this parameter, the output will instead go to the file. On Linux and Unix, using /dev/null will result in the output being discarded.
• mpi_randomization_mode -- Controls how the random numbers are seeded on multiple processors

  1

  -- This is the original default, which showed issues in some simulations. The seed on the $i^{th}$ processor is $s_0+2*i$.

  2

  -- The seed on the $i^{th}$ processor is $s_0+2*i^2$.

  3

  -- This is the new default. The seed on the $i^{th}$ processor is $s_0+i*(i+1)$.

  4

  -- The seed on the $i^{th}$ processor is $s_0+R_i$, where $R_i$ is the $i^{th}$ random integer returned by the system rand() function.