Mpi4py-examples
mpi4py-examples
This repository contains advanced parallel computing scripts to run against an MPI cluster.
License: GNU General Public License.
The creation and configuration of the cluster can be seen here:
The example provided in this repository is about matrix multiplication via MPI. The approach used is by slicing the matrix and sending each chunk to a particular node of the cluster, perform the calculations and send the results back to the main node.
The results of the execution can be seen below (time in seconds):
| Test | Sequential Time | CPU1 | CPU2 | CPU3 | CPU4 | CPU1 | CPU2 | CPU3 | CPU4 | CPU1 | CPU2 | CPU3 | CPU4 | Max | Speedup |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12x12 | 0.01111 | 0.00525 | 0.0037 | 0.0037 | 0.00525 | 2.116190476 | |||||||||
| 12x12 | 0.01111 | 0.00292 | 0.00202 | 0.00208 | 0.00303 | 0.00206 | 0.00211 | 0.00303 | 3.666666667 | ||||||
| 12x12 | 0.01111 | 0.00197 | 0.00175 | 0.00129 | 0.00205 | 0.00182 | 0.00122 | 0.00218 | 0.00183 | 0.00127 | 0.00218 | 5.096330275 | |||
| 12x12 | 0.01111 | 0.00214 | 0.00233 | 0.00212 | 0.00194 | 0.00202 | 0.00234 | 0.00267 | 0.00185 | 0.00201 | 0.00222 | 0.00209 | 0.00241 | 0.00267 | 4.161048689 |
| 60x60 | 1.29955 | 0.4778 | 0.36717 | 0.36728 | 0.4778 | 2.719861867 | |||||||||
| 60x60 | 1.29955 | 0.35127 | 0.27552 | 0.20697 | 0.34767 | 0.27474 | 0.207 | 0.35127 | 3.699575825 | ||||||
| 60x60 | 1.29955 | 0.21966 | 0.22068 | 0.15385 | 0.22046 | 0.22196 | 0.15476 | 0.22054 | 0.22058 | 0.15436 | 0.22196 | 5.854883763 | |||
| 60x60 | 1.29955 | 0.18464 | 0.18589 | 0.18397 | 0.18379 | 0.18283 | 0.1851 | 0.18473 | 0.18374 | 0.18373 | 0.18427 | 0.18396 | 0.18381 | 0.18589 | 6.990962397 |
| 144x144 | 15.02287 | 5.08906 | 4.99491 | 4.93309 | 5.08906 | 2.951993099 | |||||||||
| 144x144 | 15.02287 | 2.78648 | 2.90336 | 2.67886 | 2.78634 | 2.89459 | 2.68409 | 2.90336 | 5.174304943 | ||||||
| 144x144 | 15.02287 | 3.11941 | 2.69587 | 2.022 | 3.12694 | 2.69165 | 2.0254 | 3.12809 | 2.68855 | 2.01999 | 3.12809 | 4.802569619 | |||
| 144x144 | 15.02287 | 2.37735 | 2.3879 | 2.2758 | 2.38267 | 2.37713 | 2.27037 | 2.38764 | 2.37814 | 2.25782 | 2.38018 | 2.38604 | 2.27187 | 2.3879 | 6.29124754 |
| 216x216 | 51.69995 | 17.26683 | 17.08989 | 16.66551 | 17.26683 | 2.994177275 | |||||||||
| 216x216 | 51.69995 | 9.67602 | 8.63827 | 8.60859 | 9.65453 | 8.62195 | 8.62782 | 9.67602 | 5.343100779 | ||||||
| 216x216 | 51.69995 | 10.52823 | 9.46254 | 7.30951 | 10.51718 | 9.44692 | 7.30529 | 10.54083 | 9.48649 | 7.28061 | 10.54083 | 4.90473236 | |||
| 216x216 | 51.69995 | 8.13615 | 8.12379 | 8.00465 | 8.13003 | 8.13992 | 7.94381 | 8.14352 | 8.1071 | 8.00023 | 8.13681 | 8.14298 | 7.999 | 8.14352 | 6.348599868 |
See the multiplication in action using 3 CPUs on each node:
Licence
mpi4py-examples Copyright (C) 2016 Jordi Corbilla
This program is free software: you can redistribute it and/or modify it under the terms of the GNU
General Public License as published by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
You should have received a copy of the GNU General Public License along with this program.
If not, see http://www.gnu.org/licenses/.
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