https://github.com/matthiasdiener/communication-samples

https://github.com/matthiasdiener/communication-samples

Last synced: 10 days ago
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• Host: GitHub
• URL: https://github.com/matthiasdiener/communication-samples
• Owner: matthiasdiener
• License: gpl-3.0
• Created: 2014-12-27T16:10:45.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2016-12-13T15:02:48.000Z (almost 8 years ago)
• Last Synced: 2024-03-18T02:11:02.228Z (8 months ago)
• Language: C
• Size: 16.6 KB
• Stars: 0
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Communication in parallel applications based on shared memory: sample code

This project contains a set of small benchmarks to show various different communication patterns in parallel applications based on the shared memory paradigm (more specifically, the OpenMP standard).

## Benchmarks

The following benchmarks are provided:

### init

Simple initialization code with an initialization communication pattern.

### reduce

Simple reduction code with a reduction communication pattern.

### matrix

Matrix multiplication with an all-to-all communication pattern.

### gauss-seidel

Gauss-Seidel method with a nearest-neighbor communication pattern.

### gauss-blur

Gaussian blur with a matrix communication pattern.

### prodcons

Producer-consumer benchmark with a pipeline communication pattern.

## Compilation

Compile the benchmarks with

    make

## Execution

Benchmarks inputs have been chosen such that the patterns are best visible with 8 threads.

Therefore, executing with 8 threads is recommended, even on platforms that support executing more or less than 8 threads at the same time.

    export OMP_NUM_THREADS=8

    ./init