run-mult-machines

Running commands parallelly on multiple machines

Introduction

This perl script forks multiple processes and each process logs in to different machine and runs the command. The parent process waits for pseudo-process to finish, prints out statistics on the screen and exits.

It also saves the log file of everything printed on the screen.

'command_file' has contents

  md5sum file1  
  md5sum file2  
  md5sum file3  
  md5sum file4  
  md5sum file5  

Each command should run on different machine. Thus 'md5sum file1' should run on hdc001-001, 'md5sum file2' should run on hdc001-002 and so on. The machine name can be changed depending on your center.

To run each command from command_file on different machine, simply run \

run_mult_machines.pl command_file

This will run each line from 'command_file' on different machine. The parent process will wait for each pseudo-process to finish. It will then print the statistics in the log file 'command_file_log'

Detailed Explanation

https://amitpend.medium.com/running-commands-parallelly-on-multiple-machines-85266fea5914