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Type:
Bug
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Status: Closed
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Priority:
Critical
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Resolution: Fixed
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Affects Version/s: None
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Fix Version/s: 3.1.1
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Labels:None
When using the Weigth class to pass a large number of weights to multivariate vector optimizers, an nxn full matrix is created (and copied) when a n elements vector is used. This exhausts memory when n is large.
This happens for example when using curve fitters (even simple curve fitters like polynomial ones for low degree) with large number of points. I encountered this with curve fitting on 41200 points, which created a matrix with 1.7 billion elements.