ECL-MST v1.0

ECL-MST is a fast CUDA implementation for computing a minimum spanning tree (MST) or a minimum spanning forest (MSF) of an undirected graph. It operates on graphs stored in binary CSR format. Converters to this format and several pre-converted graphs can be found here.

Click on and ECLgraph.h to download the CUDA code. Alternatively, the code is also available on github. See the paper listed below for a description of ECL-MST. Note that ECL-MST is protected by the 3-Clause BSD license.

The code can be compiled as follows:

nvcc -O3 -arch=sm_70 -o ecl-mst

To compute the MST of the file graph.egr, enter:

./ecl-mst graph.egr


A. Fallin, A. Gonzalez, J. Seo, and Martin Burtscher. "A High-Performance MST Implementation for GPUs." Proceedings of the 2023 ACM/IEEE International Conference for High Performance Computing, Networking, Storage, and Analysis. November 2023. [pdf]

This work has been supported in part by the National Science Foundation under Award Number 1955367 and by an equipment donation from NVIDIA Corporation.

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