ATAT 任务组织与 MPI 命令

Syntax: pollmach [-f] [-e] [-m alternate_machine_configuration_file] [-s] [-w] command_to_run

This command periodically checks the load on various machines
(specified in the file ~/.machines.rc)
and looks for subdirectories containing a file called "wait".
If the load on a machine is sufficiently low, it executes command_to_run
on that machine, in the directory where the oldest wait file lies.
A default ~/.machines.rc file is created the first time the chl command
is run. The format of the file is explained in the comments therein.
If no ~/.machines.rc file exists, command_to_run is run sequentially on
the local computer in each directory containing a "wait" file.
This is the single-machine mode.

When using this command with maps, command_to_run will typically be runstruct_vasp

The -m option overrides the default ~/.machines.rc (it is optional).

The -e option specifies that the command should terminate when no more
"wait" files are to be found (only works in single-machine (sequential) mode,
when no ~/.machines.rc file is given).

The -f option forces the command to run even if of pollmach_is_running file exists.

The -s option cause pollmach to self-manage the load (it does not poll the nodes for their loads
but instead keeps track of where it sends a job and does not send any other job to that node until it is done.
The first column in the machine_configuration_file is ignored and can be omitted.

The -w option tells pollmach to wait until all sub processes have finished before quitting.

The -il interactive loop option (beta). Here pollmach waits for a file called 'busy' to be created,
        then runs command and then deletes 'busy'.
        This repeats itself until a stop or stoppoll file is created.

The -t "command" option first runs "command" and, only if its return code is 0, runs command_to_run.

To cleanly stop this program, type
        touch stoppoll

Syntax: minload [-m alternate_machine_config_file] [-w]
Returns the command prefix needed to run a command on the remote
machine having the minimum load, among the
machines listed in the ~/.machines.rc file
(or as specified by the -m option).
A default ~/.machines.rc file is created the first time
the chl command is run and the file format is described
in the comments therein.

This command is basically like rsh, except that the command
makes sure that the current directory on the remote machine 
is the same as on the local machine.
(If the two machines do not share the same disk space, use the -r option.)

Syntax: node [-s] [-r] user@host command
 -s: use ssh instead of rsh
 -r: copy files in current directory to remote host before running command
 if user is the same on remote host, use may use
   node [-s] [-r] host command