[igraph] large graph problem

[zhengjun chen]

Hi, 

I use Igraph 0.5.2. The large graph has 4 Million nodes. 

It issues the following errors even I try to get the number of nodes in the graph.

malloc: *** mmap(size=551952384) failed (error code=12)

*** error: can't allocate region

*** set a breakpoint in malloc_error_break to debug

Assertion failed: (v->stor_begin != NULL), function igraph_vector_size, file vector.pmt, line 449.

So is there any way to fix it? how many nodes can be handled by Igraph?

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Thanks