id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
3668	Memory allocation of the back-end grows quadratically with the system size	Francesco Casella	Lennart Ochel	"Consider the attached test package: it has one algebraic system of equations driven by a scalar differential equation.

Under Windows, the size of memory allocated by the back-end grows approximately as O(N^2^), N being the size of the algebraic system:

|| N    || Memory (MB) ||
||2000  || 260  ||
||4000  || 1000 ||
||6000  || 2000 ||

Note that the number of non-zero elements in the incidence matrix of the system grows as O(N), as there are 3 non-zero elements in each row.

This is not sustainable for systems that have more than a few thousands unknowns."	defect	new	high	Future	Backend	v1.9.4-dev-nightly