I have a large number of graphs—up to millions of multigraphs.
The issue is that they consume too much memory, which likely causes slowdowns.
I noticed that if I save only the edge lists instead of full graphs using EdgeTaggedGraph, the memory usage is significantly reduced.
However, the inconvenience of this method is that every time I need to work with a graph, I first have to convert the edge list into a graph, perform operations, and then convert the result back into an edge list for output.
I’m wondering if there is any function in IGraphM that allows for more memory-efficient storage of multigraphs and provides a fast way to encode or decode between formats?
Thank you. I see the ‘New Topic’ button now — I was probably looking in the wrong place.
IGraph/M won’t currently help with this as it is designed to work with Mathematica’s native Graph expressions. I do have plans to provide direct access to the internal native igraph data format, but note that the memory usage is still larger than that of a basic edge list, and implementing this is some time away still.
The short answer is that IGraph/M won’t help with this for the time being.
Thank you for the info.