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[igraph] speed slowdown with version change
From: |
Robin Cowan |
Subject: |
[igraph] speed slowdown with version change |
Date: |
Fri, 14 Dec 2018 15:16:24 +0100 |
I have a small simulation that creates a network of agents who then play a game
on the network.
I noticed that when I run the simulation under R 3.1.3 igraph 0.7.1 it takes
about 4 seconds.
When I run it using R 3.5.1 with igraph 1.2.2 it takes about 4 minutes.
I use igraph to create a network and then extract neighbourhoods. The
neighbourhoods are what is actually used to get the nodes to play the game.
I re-wrote it to remove igraph from the code — to test whether igraph is the
issue, I created a list directly which represented the neighbourhoods.
With that elimination of igraph (and no other changes) it takes about 4 seconds
under R 3.5.1
Some of the maintainers on the R list looked and came tot he same conclusion.
The problem is with igraph changes between 0,7 and 1.2.
Has this come to light before?
Thanks,
Robin Cowan
- [igraph] speed slowdown with version change,
Robin Cowan <=