Error in function getNeighboursAtMostKHops

[sudhir...@gmail.com]

Hi,

When I use this function (getNeighboursAtMostKHops), I get the following error.

Exception in thread "main" java.lang.IllegalArgumentException: this set doesn't contains element 573
at toools.set.IntHashSet.remove(IntHashSet.java:66)
at toools.set.IntSet.removeAll(IntSet.java:278)
at grph.Grph.getFringes(Grph.java:3283)
at grph.Grph.getNeighboursAtMostKHops(Grph.java:3252)
at org.purdue.topk.bfs.BFSBuilder.testDiameters(BFSBuilder.java:452)
at org.purdue.topk.bfs.Driver.debugResults(Driver.java:533)
at org.purdue.topk.bfs.Driver.debugACase(Driver.java:548)
at org.purdue.topk.bfs.Driver.main(Driver.java:574)

Here I am trying to find neighbors of node (573) at a distance of '2'. But the
function (getNeighbors()) for the same node works fine.

Is this a bug or is there anything I am doing incorrectly.

In a birds eye view, I am doing the following:
1. Compute the BreadthFirstSearch from a particular node for a number of hops.
2. Hops in the above step is computed dynamically.

Can someone please help.

I am using version 1.5.27 bigjar library. I tried to compile my code with the newer version (1.5.29) but the compilation fails.

Thanks in advance.

Thanks
Sudhir Kylasa
PhD Student @ Purdue University.

[Luc Hogie]

Hi Sushdir,

I'll try to reproduce this error to fix the code.

Are you aware of any particularity of your graph? Is is disconnected?

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[sudhir...@gmail.com]

Dear Luc Hogie:

My Graph has a single connected component (graph is connected).
And this does not happen for all graphs. Only some graphs. If you need
I can forward you the graph on which I am getting this error. Please let me know where to forward the graph file (edge list), if you need.

Thanks
Sudhir