Running mpi4.py on two hosts

by akkornel 4 years ago

GNU/Linux ◆ xterm-256color ◆ bash 688 views

This builds on the previous demo (https://asciinema.org/a/251770): A second Ubuntu Bionic system has been obtained, with the same configuration (the same packages, etc.). mpi4.py is either located on shared storage, or exists at the same path on the second hosts’s hard drive. Finally, SSH keys (and the trusted hosts file) have been set up to allow SSHing from one host to the other.

With all of that done, the same code from the previous example is able to run across two hosts, with no code changes required.

The code demonstrated in this asciicast is available here: https://github.com/akkornel/mpi4py

More by akkornel

Shrinking a Singularity container image 01:15

by akkornel 7 years ago

Singularity bootstrap, with runscript and file copy 01:38

by akkornel 7 years ago

Singularity Bootstrap with package install outside the container 01:59

by akkornel 7 years ago

Running mpi4.py via SLURM 00:14

by akkornel 4 years ago

See all

You can download this recording in asciicast v2 format, as a .cast file.

Download

Replay in terminal

You can replay the downloaded recording in your terminal using the asciinema play command:

asciinema play 251773.cast

If you don't have asciinema CLI installed then see installation instructions.

Use with stand-alone player on your website

Download asciinema player from the releases page (you only need .js and .css file), then use it like this:

<!DOCTYPE html>
<html>
<head>
  <link rel="stylesheet" type="text/css" href="asciinema-player.css" />
</head>
<body>
  <div id="player"></div>
  <script src="asciinema-player.min.js"></script>
  <script>
    AsciinemaPlayer.create(
      '/assets/251773.cast',
      document.getElementById('player'),
      { cols: 80, rows: 25 }
    );
  </script>
</body>
</html>

See asciinema player quick-start guide for full usage instructions.

While this site doesn't offer GIF conversion at the moment, you can still do it yourself with the help of asciinema GIF generator utility - agg.

Once you have it installed run the following command to create GIF file:

agg https://asciinema.org/a/251773 251773.gif

Or, if you already downloaded the recording file:

agg 251773.cast 251773.gif

Check agg --help for all available options. You can change font family and size, select color theme, adjust speed and more.

See agg manual for full usage instructions.