QY/case39

Name: QY/case39
License: https://spdx.org/licenses/CC-BY-4.0.html

power network problem sequence (40,216 nodes, 1,042,160 non-zeros)

npx keepset fetch ss-qy-case39

Fetch and preview this dataset on this page, or download the result as JSON. The command line fetches it without a browser.

Overview

Id	`ss-qy-case39`
Namespace	`suitesparse/qy`
Aliases	`case39`
Category	`graph/v1`
Kind	graph
Domain	Power Network Problem Sequence
Licence	CC-BY-4.0
Catalogue	`keepset` 1.33.0

#	URL	Status	Retrieved	Read by recipe
0	https://www.cise.ufl.edu/research/sparse/MM/QY/case39.tar.gz	live	2026-10-21	yes
1	https://sparse.tamu.edu/MM/QY/case39.tar.gz	live	2026-02-16
2	https://sparse.tamu.edu/RB/QY/case39.tar.gz	live	2026-02-16
3	https://sparse.tamu.edu/mat/QY/case39.tar.gz	live	2026-02-16

T. A. Davis, Y. Hu (2011). The University of Florida Sparse Matrix Collection. ACM Transactions on Mathematical Software 38, 1:1-1:25.

keepset/topology to graph/v1, as a crossmap crosswalk.

Rule	From	To	Direction
move	`meta`	`meta`	both
move	`nodes[].id`	`nodes[].id`	both
move	`edges[].source`	`edges[].source`	both
move	`edges[].target`	`edges[].target`	both

Edges	1,042,160
Nodes	40,216