MPICH Visualisation

Introduction

MPICH is a standard software used for message-passing for distributed-memory applications used in parallel computing. MPICH is Free and open source software.

MPICH provides many MPI calls like Reduce , Broadcast , Send , Gather , etc to provide different functionality in parallel implementation of a code.

This project is to show a visual representation of underlying message passing that happens among the nodes for various different function calls and on different topologies.

Project objective

• Build a GUI application for the users to give configuration of the system
• Show different kind topologies
• Implement many different MPI calls on these topologies and show how the nodes are interacting among themselves for different functions
• Calculate number of hops messages take in each phase and in total
• Generate snapshots of event that happened during the communication for a specific function
• Gallery to show the snapshots
• Generate animated gif for a configuration

Physical Topologies Implemented :

Topology	About	Image
Fat Tree	Nodes are arranged as nodes of a Binary Tree, with more links in upper levels than lower
Torus	Torus is a mesh connection with extra links connecting the boundary nodes
Dragonfly	Nodes are grouped and arranged in a circular manner

MPICH Functions Included :

• MPI_Send ( ) :
• MPI_Bcast ( ) :
  • Naive Algorithm
  • Binomial Tree
• MPI_Reduce ( ) :
• MPI_Allreduce ( ) :
  • Rabenseifner Algorithm
• MPI_Gather ( ) :
  • Recursive Doubling
• MPI_Allgather ( ) :
  • Recursive doubling Naive Algorithm
  • Rabenseifner Algorithm Recursive Doubling

---

Dependencies

Linux System

Gthumb Image Viewer

sudo apt-get install gthumb

Python Pip

sudo apt install python3-pip

Upgrade Pip

sudo pip3 install --upgrade pip

Matplotlib Python Library

sudo pip3 install matplotlib

Python tTkinter Library

sudo apt-get install python3-tk

---

Run Code

• Clone repository

git clone https://github.com/ft-abhishekgupta/mpich-visualisation

• Copy code to Home Directory
• Change permission for home

sudo chown root.<username> /home/<username>/.local/share/gvfs-metadata/home
sudo rm ~/.local/share/gvfs-metadata/home

• Replace <username> with system user name
• Change Directory to Code
• Run main file.

python3 main.py

---

Screenshots