Copyright 2019, WR Saunders, wrs20@bath.ac.uk; James Grant, rjg20@bath.ac.uk
Tool to launch a serial process in all directories that match a glob. Execute with :
mpirun -n <NUM_PROCS> python simple_batch.py <glob_pattern> <executable>
For example if we have directories :
abc1
abc2
abc3
abc4
and we want to launch a process in each directory that executes ls -l
using 4 MPI ranks we launch :: mpirun -n 4 python simple_batch.py 'abc*' ls -l
Note that the glob_pattern needs to be in quotes to stop shell expansion. If you wish to run a script then the executable include the shell, and absolute path:
- ::
bash /absolute/path/to/my_script.sh arg1 arg2 etc
Tool to launch parallel processes in all directories that match a glob. Execute with :: python task_batch.py <NUM_PROCS> <PROCS_PER_TASK> <glob_pattern> <executable>
Again if we have directories: :
abc1
abc2
abc3
abc4
and we want to launch a two process task in each directory that executes echo 'Hello World!'
using a total of 4 processes we launch: :: python task_batch.py 4 2 'abc*' mprun -n 2 echo 'Hellow World!'
The conditions for the glob_pattern and executable are the same as for simple batch above.