Public bug reported: There seem to be some nasty memory leaks in the Python interface. Some are bad enough that my solver crashes.
1. (see https://lists.launchpad.net/dolfin/msg00790.html) from dolfin import * mesh = UnitSquare(2, 2, "crossed") for i in xrange(5): for j in xrange(500): BDM = FunctionSpace(mesh, "Brezzi-Douglas-Marini", 1) raw_input("Check memory use and press ENTER to continue") print ". . . .", i 2. The below problems leaks badly class MyNonlinearProblem(NonlinearProblem): def __init__(self, a, L, ffc_parameters): NonlinearProblem.__init__(self) self.L = L self.a = a self.reset_sparsity = True self.ffc_parameters = ffc_parameters def F(self, b, x): return def J(self, A, x): return for i in xrange(10): # Create forms, # Create MyNonlinearProblem # Create NewtonSolver (modified to do nothing except call NewtonSolver::form, which does nothing) # Call solve It does not leak if I have class MyNonlinearProblem(NonlinearProblem): def __init__(self, a, L, ffc_parameters): NonlinearProblem.__init__(self) self.reset_sparsity = True self.ffc_parameters = ffc_parameters def F(self, b, x): return def J(self, A, x): return ** Affects: dolfin Importance: Critical Status: Confirmed -- pydolfin-memory-leaks https://bugs.launchpad.net/bugs/518241 You received this bug notification because you are a member of DOLFIN Team, which is subscribed to DOLFIN. Status in DOLFIN: Confirmed Bug description: There seem to be some nasty memory leaks in the Python interface. Some are bad enough that my solver crashes. 1. (see https://lists.launchpad.net/dolfin/msg00790.html) from dolfin import * mesh = UnitSquare(2, 2, "crossed") for i in xrange(5): for j in xrange(500): BDM = FunctionSpace(mesh, "Brezzi-Douglas-Marini", 1) raw_input("Check memory use and press ENTER to continue") print ". . . .", i 2. The below problems leaks badly class MyNonlinearProblem(NonlinearProblem): def __init__(self, a, L, ffc_parameters): NonlinearProblem.__init__(self) self.L = L self.a = a self.reset_sparsity = True self.ffc_parameters = ffc_parameters def F(self, b, x): return def J(self, A, x): return for i in xrange(10): # Create forms, # Create MyNonlinearProblem # Create NewtonSolver (modified to do nothing except call NewtonSolver::form, which does nothing) # Call solve It does not leak if I have class MyNonlinearProblem(NonlinearProblem): def __init__(self, a, L, ffc_parameters): NonlinearProblem.__init__(self) self.reset_sparsity = True self.ffc_parameters = ffc_parameters def F(self, b, x): return def J(self, A, x): return _______________________________________________ Mailing list: https://launchpad.net/~dolfin Post to : dolfin@lists.launchpad.net Unsubscribe : https://launchpad.net/~dolfin More help : https://help.launchpad.net/ListHelp
