What's the fastest force-directed network graph engine for large data sets?

Question

We currently have a dynamically updated network graph with around 1,500 nodes and 2,000 edges. It\'s ever-growing. Our current layout en

Answer 1

The Gephi Toolkit might be what you need: some layouts are very fast yet with a good quality: http://gephi.org/toolkit/

30 secondes to 2 minutes are enough to layout such a graph, depending on your machine. You can use the ForAtlas layout, or the Yifan Hu Multilevel layout.

For very large graphs (+50K nodes and 500K links), the OpenOrd layout wil