[graph-tool] Memory requirement estimate for a large graph

Tiago de Paula Peixoto tiago at skewed.de
Mon Jul 6 15:58:45 CEST 2020


Am 06.07.20 um 15:53 schrieb Carlo Nicolini:
> Many thanks Tiago for the quick answer.
> 
> I've tried (using `htop` command) to measure the RES memory requirement
> for such a graph with 1M nodes and 100M links, but the results is almost
> twice the size, a total of 6.2 GB.
> Is there a reason why I get that figure?

Hard to say without a minimal working example. Try saving the network to
disk, and loading it again from a newly started interpreter.

I tried on my machine, and I got 4.5 GB. As I explained, std::vector<>
may over-commit the allocations.

-- 
Tiago de Paula Peixoto <tiago at skewed.de>

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