Excessive memory use with Eigen after convergence


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23 days ago by
The simple nonlinear-poisson demo keeps using more RAM memory even after the equation has converged.

To reproduce please use the attached modified main.cpp (3.19 KB). Build and run and look at the RAM memory increase (with system monitor on ubuntu).

Even tough the problem has converged, Eigen keeps using more RAM for subsequent solves. You do not see this if you use the PETSc backend. First, can anyone reproduce? I am running the latest dolfin master on Ubuntu 18.04. This is a problem because sometimes you want to use solve in a for loop and this was not happening with previous versions.

Any suggestion is appreciated,
Thanks!
Community: FEniCS Project
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