def setUp(self):
"""
Setup mesh and associated field.
"""
from spatialdata.geocoords.CSCart import CSCart
cs = CSCart()
cs.inventory.spaceDim = 2
cs._configure()
from spatialdata.units.Nondimensional import Nondimensional
normalizer = Nondimensional()
normalizer._configure()
from pylith.meshio.MeshIOAscii import MeshIOAscii
importer = MeshIOAscii()
importer.inventory.filename = "data/tri3.mesh"
importer.inventory.coordsys = cs
importer._configure()
self.mesh = importer.read(debug=False, interpolate=False)
from pylith.topology.SolutionFields import SolutionFields
fields = SolutionFields(self.mesh)
fields.add("disp t+dt", "displacement")
fields.solutionName("disp t+dt")
solution = fields.solution()
solution.newSection(solution.VERTICES_FIELD, self.mesh.dimension())
solution.allocate()
solution.zero()
self.fields = fields
self.jacobian = Jacobian(solution)
return
def test_constructor(self):
"""
Test constructor.
"""
# setUp() tests constructor with default type
jacobianA = Jacobian(self.fields.solution(), "aij")
jacobianB = Jacobian(self.fields.solution(), "baij")
return
def initialize(self, dimension, normalizer):
"""
Initialize problem for implicit time integration.
"""
logEvent = "%sinit" % self._loggingPrefix
self._eventLogger.eventBegin(logEvent)
comm = self.mesh().comm()
self._initialize(dimension, normalizer)
#from pylith.utils.petsc import MemoryLogger
#memoryLogger = MemoryLogger.singleton()
#memoryLogger.setDebug(0)
#memoryLogger.stagePush("Problem")
# Allocate other fields, reusing layout from dispIncr
if 0 == comm.rank:
self._info.log("Creating other fields.")
self.fields.add("velocity(t)", "velocity")
self.fields.copyLayout("dispIncr(t->t+dt)")
# Setup fields and set to zero
dispT = self.fields.get("disp(t)")
dispT.zeroAll()
residual = self.fields.get("residual")
residual.zeroAll()
residual.createScatter(residual.mesh())
lengthScale = normalizer.lengthScale()
timeScale = normalizer.timeScale()
velocityScale = lengthScale / timeScale
velocityT = self.fields.get("velocity(t)")
velocityT.scale(velocityScale.value)
velocityT.zeroAll()
self._debug.log(resourceUsageString())
#memoryLogger.stagePop()
# Allocates memory for nonzero pattern and Jacobian
if 0 == comm.rank:
self._info.log("Creating Jacobian matrix.")
self._setJacobianMatrixType()
from pylith.topology.Jacobian import Jacobian
self.jacobian = Jacobian(self.fields.solution(),
self.matrixType, self.blockMatrixOkay)
self.jacobian.zero() # TEMPORARY, to get correct memory usage
self._debug.log(resourceUsageString())
#memoryLogger.stagePush("Problem")
if 0 == comm.rank:
self._info.log("Initializing solver.")
self.solver.initialize(self.fields, self.jacobian, self)
self._debug.log(resourceUsageString())
#memoryLogger.stagePop()
#memoryLogger.setDebug(0)
return
def test_write(self):
"""
Test write().
:WARNING: This is not a complete test of write(). We do not
verify the results.
"""
self.jacobian = Jacobian(self.fields.solution(), "aij")
self.jacobian.assemble("final_assembly")
self.jacobian.write("jacobian.mat", self.mesh.comm())
# No testing of result.
return
def setUp(self):
"""
Setup mesh and associated field.
"""
from spatialdata.geocoords.CSCart import CSCart
cs = CSCart()
cs.inventory.spaceDim = 2
cs._configure()
from spatialdata.units.Nondimensional import Nondimensional
normalizer = Nondimensional()
normalizer._configure()
from pylith.meshio.MeshIOAscii import MeshIOAscii
importer = MeshIOAscii()
importer.inventory.filename = "data/tri3.mesh"
importer.inventory.coordsys = cs
importer._configure()
self.mesh = importer.read(debug=False, interpolate=False)
from pylith.topology.SolutionFields import SolutionFields
fields = SolutionFields(self.mesh)
fields.add("disp t+dt", "displacement")
fields.solutionName("disp t+dt")
solution = fields.solution()
solution.newSection(solution.VERTICES_FIELD, self.mesh.dimension())
solution.allocate()
solution.zero()
self.fields = fields
self.jacobian = Jacobian(solution)
return
def initialize(self, dimension, normalizer):
"""
Initialize problem for implicit time integration.
"""
logEvent = "%sinit" % self._loggingPrefix
self._eventLogger.eventBegin(logEvent)
from pylith.mpi.Communicator import mpi_comm_world
comm = mpi_comm_world()
self._initialize(dimension, normalizer)
#from pylith.utils.petsc import MemoryLogger
#memoryLogger = MemoryLogger.singleton()
#memoryLogger.setDebug(0)
#memoryLogger.stagePush("Problem")
# Allocate other fields, reusing layout from dispIncr
if 0 == comm.rank:
self._info.log("Creating other fields.")
self.fields.add("velocity(t)", "velocity")
self.fields.copyLayout("dispIncr(t->t+dt)")
# Setup fields and set to zero
dispT = self.fields.get("disp(t)")
dispT.zeroAll()
residual = self.fields.get("residual")
residual.zeroAll()
residual.createScatter(residual.mesh())
lengthScale = normalizer.lengthScale()
timeScale = normalizer.timeScale()
velocityScale = lengthScale / timeScale
velocityT = self.fields.get("velocity(t)")
velocityT.scale(velocityScale.value)
velocityT.zeroAll()
self._debug.log(resourceUsageString())
#memoryLogger.stagePop()
# Allocates memory for nonzero pattern and Jacobian
if 0 == comm.rank:
self._info.log("Creating Jacobian matrix.")
self._setJacobianMatrixType()
from pylith.topology.Jacobian import Jacobian
self.jacobian = Jacobian(self.fields.solution(),
self.matrixType, self.blockMatrixOkay)
self.jacobian.zero() # TEMPORARY, to get correct memory usage
self._debug.log(resourceUsageString())
#memoryLogger.stagePush("Problem")
if 0 == comm.rank:
self._info.log("Initializing solver.")
self.solver.initialize(self.fields, self.jacobian, self)
self._debug.log(resourceUsageString())
#memoryLogger.stagePop()
#memoryLogger.setDebug(0)
return
def test_integrateJacobian(self):
"""
Test integrateJacobian().
This does nothing for Neumann BC.
"""
(mesh, bc, fields) = self._initialize()
from pylith.topology.Jacobian import Jacobian
jacobian = Jacobian(fields.solution())
jacobian.zero()
t = 0.24
bc.integrateJacobian(jacobian, t, fields)
self.assertEqual(False, bc.needNewJacobian())
# No testing of result.
return
def test_integrateJacobian(self):
"""
Test integrateJacobian().
WARNING: This is not a rigorous test of integrateJacobian() because we
neither set the input fields or verify the results.
"""
(mesh, fault, fields) = self._initialize()
from pylith.topology.Jacobian import Jacobian
jacobian = Jacobian(fields.solution())
jacobian.zero()
t = 1.0
fault.integrateJacobian(jacobian, t, fields)
self.assertEqual(False, fault.needNewJacobian())
# We should really add something here to check to make sure things
# actually initialized correctly
return
def test_integrateJacobian(self):
"""
Test integrateJacobian().
WARNING: This is not a rigorous test of integrateJacobian() because we
neither set the input fields or verify the results.
"""
(mesh, fault, fields) = self._initialize()
from pylith.topology.Jacobian import Jacobian
jacobian = Jacobian(fields.solution())
jacobian.zero()
t = 1.0
fault.integrateJacobian(jacobian, t, fields)
self.assertEqual(False, fault.needNewJacobian())
# We should really add something here to check to make sure things
# actually initialized correctly
return
def test_integrateJacobian(self):
"""
Test integrateJacobian().
WARNING: This is not a rigorous test of integrateJacobian() because we
don't verify the results.
"""
(mesh, bc, fields) = self._initialize()
from pylith.topology.Jacobian import Jacobian
jacobian = Jacobian(fields.solution())
jacobian.zero()
t = 0.24
bc.integrateJacobian(jacobian, t, fields)
self.assertEqual(False, bc.needNewJacobian())
# No testing of result.
return
def test_integrateJacobian(self):
"""
Test integrateJacobian().
WARNING: This is not a rigorous test of integrateJacobian() because we
don't verify the results.
"""
(mesh, bc, fields) = self._initialize()
from pylith.topology.Jacobian import Jacobian
jacobian = Jacobian(fields.solution())
jacobian.zero()
t = 0.24
bc.integrateJacobian(jacobian, t, fields)
self.assertEqual(False, bc.needNewJacobian())
# No testing of result.
return
def test_integrateJacobian(self):
"""
Test integrateJacobian().
WARNING: This is not a rigorous test of integrateJacobian()
because we neither set the input fields or verify the results.
"""
(mesh, integrator) = self._preinitialize()
fields = self._initialize(mesh, integrator)
from pylith.topology.Jacobian import Jacobian
jacobian = Jacobian(fields.solution())
jacobian.zero()
t = 7.3
self.assertEqual(True, integrator.needNewJacobian())
integrator.integrateJacobian(jacobian, t, fields)
self.assertEqual(False, integrator.needNewJacobian())
# No test of result.
return
def test_integrateJacobian(self):
"""
Test integrateJacobian().
WARNING: This is not a rigorous test of integrateJacobian()
because we neither set the input fields or verify the results.
"""
(mesh, integrator) = self._preinitialize()
fields = self._initialize(mesh, integrator)
from pylith.topology.Jacobian import Jacobian
jacobian = Jacobian(fields.solution())
jacobian.zero()
t = 7.3
self.assertEqual(True, integrator.needNewJacobian())
integrator.integrateJacobian(jacobian, t, fields)
self.assertEqual(False, integrator.needNewJacobian())
# No test of result.
return
def test_write(self):
"""
Test write().
:WARNING: This is not a complete test of write(). We do not
verify the results.
"""
self.jacobian = Jacobian(self.fields.solution(), "aij")
self.jacobian.assemble("final_assembly")
self.jacobian.write("jacobian.mat", self.mesh.comm())
# No testing of result.
return
class Implicit(Formulation, ModuleImplicit):
"""
Python Implicit object for solving equations using an implicit
formulation.
The formulation has the general form,
[A(t+dt)] {u(t+dt)} = {b(t+dt)}.
We know the solution at time t, so we write {u(t+dt)} as {u(t)} +
{du(t)}, where {du(t)} is the increment in the solution from time t
to time t+dt. Thus, we solve
[A(t+dt)] {du(t)} = {b(t+dt)} - [A(t+dt)]{u(t)}.
We solve this system by forming the Jacobian, A, and the residual
{r(t+dt)} = {b(t+dt)} - [A(t+dt)]{u(t)} - [A(t+dt)]{du(t)}
which we combine into
{r(t+dt)} = {b(t+dt)} - [A(t+dt)]{u(t)+du(t)}.
The method reformJacobian() computes [A(t+dt)] and the method
reformResidual computes {r(t+dt)}. Note that in forming the residual
we compute the action [A(t+dt)]{u(t)+du(t)} and do not perform a
matrix-vector multiplication.
[A(t+dt)] generally depends on {u(t+dt)} as well as the current
stresses and additional state variables.
For linear elastic or viscoelastic problems with constant time step
size, A is a constant (after the elastic solution). {b(t+dt)}
generally depends on the loads applied for time step t+dt (including
the contributions to the internal force vector from
displacement/velocity BC) as well as the internal force vector
computed from the current stresses.
Factory: pde_formulation.
"""
# INVENTORY //////////////////////////////////////////////////////////
class Inventory(Formulation.Inventory):
"""
Python object for managing Implicit facilities and properties.
"""
## @class Inventory
## Python object for managing Implicit facilities and properties.
##
## \b Properties
## @li None
##
## \b Facilities
## @li None
import pyre.inventory
# PUBLIC METHODS /////////////////////////////////////////////////////
def __init__(self, name="implicit"):
"""
Constructor.
"""
Formulation.__init__(self, name)
ModuleImplicit.__init__(self)
self._loggingPrefix = "TSIm "
return
def elasticityIntegrator(self):
"""
Get integrator for elastic material.
"""
from pylith.feassemble.ElasticityImplicit import ElasticityImplicit
integrator = ElasticityImplicit()
return integrator
def initialize(self, dimension, normalizer):
"""
Initialize problem for implicit time integration.
"""
logEvent = "%sinit" % self._loggingPrefix
self._eventLogger.eventBegin(logEvent)
comm = self.mesh().comm()
self._initialize(dimension, normalizer)
#from pylith.utils.petsc import MemoryLogger
#memoryLogger = MemoryLogger.singleton()
#memoryLogger.setDebug(0)
#memoryLogger.stagePush("Problem")
# Allocate other fields, reusing layout from dispIncr
if 0 == comm.rank:
self._info.log("Creating other fields.")
self.fields.add("velocity(t)", "velocity")
self.fields.copyLayout("dispIncr(t->t+dt)")
# Setup fields and set to zero
dispT = self.fields.get("disp(t)")
dispT.zeroAll()
residual = self.fields.get("residual")
residual.zeroAll()
residual.createScatter(residual.mesh())
lengthScale = normalizer.lengthScale()
timeScale = normalizer.timeScale()
velocityScale = lengthScale / timeScale
velocityT = self.fields.get("velocity(t)")
velocityT.scale(velocityScale.value)
velocityT.zeroAll()
self._debug.log(resourceUsageString())
#memoryLogger.stagePop()
# Allocates memory for nonzero pattern and Jacobian
if 0 == comm.rank:
self._info.log("Creating Jacobian matrix.")
self._setJacobianMatrixType()
from pylith.topology.Jacobian import Jacobian
self.jacobian = Jacobian(self.fields.solution(),
self.matrixType, self.blockMatrixOkay)
self.jacobian.zero() # TEMPORARY, to get correct memory usage
self._debug.log(resourceUsageString())
#memoryLogger.stagePush("Problem")
if 0 == comm.rank:
self._info.log("Initializing solver.")
self.solver.initialize(self.fields, self.jacobian, self)
self._debug.log(resourceUsageString())
#memoryLogger.stagePop()
#memoryLogger.setDebug(0)
return
def prestep(self, t, dt):
"""
Hook for doing stuff before advancing time step.
"""
comm = self.mesh().comm()
if 0 == comm.rank:
self._info.log("Setting constraints.")
dispIncr = self.fields.get("dispIncr(t->t+dt)")
dispIncr.zeroAll()
for constraint in self.constraints:
constraint.setFieldIncr(t, t+dt, dispIncr)
needNewJacobian = False
for integrator in self.integrators:
integrator.timeStep(dt)
if integrator.needNewJacobian():
needNewJacobian = True
if self._collectNeedNewJacobian(needNewJacobian):
self._reformJacobian(t, dt)
return
def step(self, t, dt):
"""
Advance to next time step.
"""
comm = self.mesh().comm()
dispIncr = self.fields.get("dispIncr(t->t+dt)")
self._reformResidual(t+dt, dt)
if 0 == comm.rank:
self._info.log("Solving equations.")
self._eventLogger.stagePush("Solve")
residual = self.fields.get("residual")
#self.jacobian.view() # TEMPORARY
self.solver.solve(dispIncr, self.jacobian, residual)
#dispIncr.view("DISP INCR") # TEMPORARY
# DEBUGGING Verify solution makes residual 0
#self._reformResidual(t+dt, dt)
#residual.view("RESIDUAL")
self._eventLogger.stagePop()
return
def poststep(self, t, dt):
"""
Hook for doing stuff after advancing time step.
"""
comm = self.mesh().comm()
# Update displacement field from time t to time t+dt.
dispIncr = self.fields.get("dispIncr(t->t+dt)")
disp = self.fields.get("disp(t)")
disp.add(dispIncr)
dispIncr.zeroAll()
# Complete post-step processing, then write data.
Formulation.poststep(self, t, dt)
# Write data. Velocity at time t will be based upon displacement
# at time t-dt and t.
if 0 == comm.rank:
self._info.log("Writing solution fields.")
for output in self.output.components():
output.writeData(t+dt, self.fields)
self._writeData(t+dt)
return
def prestepElastic(self, t, dt):
"""
Hook for doing stuff before advancing time step.
"""
comm = self.mesh().comm()
if 0 == comm.rank:
self._info.log("Setting constraints.")
disp = self.fields.get("dispIncr(t->t+dt)")
disp.zeroAll()
for constraint in self.constraints:
constraint.setField(t+dt, disp)
needNewJacobian = False
for integrator in self.integrators:
integrator.timeStep(dt)
if integrator.needNewJacobian():
needNewJacobian = True
if self._collectNeedNewJacobian(needNewJacobian):
self._reformJacobian(t, dt)
return
def finalize(self):
"""
Cleanup after time stepping.
"""
Formulation.finalize(self)
return
# PRIVATE METHODS ////////////////////////////////////////////////////
def _configure(self):
"""
Set members based using inventory.
"""
Formulation._configure(self)
import journal
self._debug = journal.debug(self.name)
return
class Implicit(Formulation, ModuleImplicit):
"""
Python Implicit object for solving equations using an implicit
formulation.
The formulation has the general form,
[A(t+dt)] {u(t+dt)} = {b(t+dt)}.
We know the solution at time t, so we write {u(t+dt)} as {u(t)} +
{du(t)}, where {du(t)} is the increment in the solution from time t
to time t+dt. Thus, we solve
[A(t+dt)] {du(t)} = {b(t+dt)} - [A(t+dt)]{u(t)}.
We solve this system by forming the Jacobian, A, and the residual
{r(t+dt)} = {b(t+dt)} - [A(t+dt)]{u(t)} - [A(t+dt)]{du(t)}
which we combine into
{r(t+dt)} = {b(t+dt)} - [A(t+dt)]{u(t)+du(t)}.
The method reformJacobian() computes [A(t+dt)] and the method
reformResidual computes {r(t+dt)}. Note that in forming the residual
we compute the action [A(t+dt)]{u(t)+du(t)} and do not perform a
matrix-vector multiplication.
[A(t+dt)] generally depends on {u(t+dt)} as well as the current
stresses and additional state variables.
For linear elastic or viscoelastic problems with constant time step
size, A is a constant (after the elastic solution). {b(t+dt)}
generally depends on the loads applied for time step t+dt (including
the contributions to the internal force vector from
displacement/velocity BC) as well as the internal force vector
computed from the current stresses.
Factory: pde_formulation.
"""
# INVENTORY //////////////////////////////////////////////////////////
class Inventory(Formulation.Inventory):
"""
Python object for managing Implicit facilities and properties.
"""
## @class Inventory
## Python object for managing Implicit facilities and properties.
##
## \b Properties
## @li None
##
## \b Facilities
## @li None
import pyre.inventory
# PUBLIC METHODS /////////////////////////////////////////////////////
def __init__(self, name="implicit"):
"""
Constructor.
"""
Formulation.__init__(self, name)
ModuleImplicit.__init__(self)
self._loggingPrefix = "TSIm "
return
def elasticityIntegrator(self):
"""
Get integrator for elastic material.
"""
from pylith.feassemble.ElasticityImplicit import ElasticityImplicit
integrator = ElasticityImplicit()
return integrator
def initialize(self, dimension, normalizer):
"""
Initialize problem for implicit time integration.
"""
logEvent = "%sinit" % self._loggingPrefix
self._eventLogger.eventBegin(logEvent)
comm = self.mesh().comm()
self._initialize(dimension, normalizer)
#from pylith.utils.petsc import MemoryLogger
#memoryLogger = MemoryLogger.singleton()
#memoryLogger.setDebug(0)
#memoryLogger.stagePush("Problem")
# Allocate other fields, reusing layout from dispIncr
if 0 == comm.rank:
self._info.log("Creating other fields.")
self.fields.add("velocity(t)", "velocity")
self.fields.copyLayout("dispIncr(t->t+dt)")
# Setup fields and set to zero
dispT = self.fields.get("disp(t)")
dispT.zeroAll()
residual = self.fields.get("residual")
residual.zeroAll()
residual.createScatter(residual.mesh())
lengthScale = normalizer.lengthScale()
timeScale = normalizer.timeScale()
velocityScale = lengthScale / timeScale
velocityT = self.fields.get("velocity(t)")
velocityT.scale(velocityScale.value)
velocityT.zeroAll()
self._debug.log(resourceUsageString())
#memoryLogger.stagePop()
# Allocates memory for nonzero pattern and Jacobian
if 0 == comm.rank:
self._info.log("Creating Jacobian matrix.")
self._setJacobianMatrixType()
from pylith.topology.Jacobian import Jacobian
self.jacobian = Jacobian(self.fields.solution(),
self.matrixType, self.blockMatrixOkay)
self.jacobian.zero() # TEMPORARY, to get correct memory usage
self._debug.log(resourceUsageString())
#memoryLogger.stagePush("Problem")
if 0 == comm.rank:
self._info.log("Initializing solver.")
self.solver.initialize(self.fields, self.jacobian, self)
self._debug.log(resourceUsageString())
#memoryLogger.stagePop()
#memoryLogger.setDebug(0)
return
def prestep(self, t, dt):
"""
Hook for doing stuff before advancing time step.
"""
comm = self.mesh().comm()
if 0 == comm.rank:
self._info.log("Setting constraints.")
dispIncr = self.fields.get("dispIncr(t->t+dt)")
dispIncr.zeroAll()
for constraint in self.constraints:
constraint.setFieldIncr(t, t+dt, dispIncr)
needNewJacobian = False
for integrator in self.integrators:
integrator.timeStep(dt)
if integrator.needNewJacobian():
needNewJacobian = True
if self._collectNeedNewJacobian(needNewJacobian):
self._reformJacobian(t, dt)
return
def step(self, t, dt):
"""
Advance to next time step.
"""
comm = self.mesh().comm()
dispIncr = self.fields.get("dispIncr(t->t+dt)")
self._reformResidual(t+dt, dt)
if 0 == comm.rank:
self._info.log("Solving equations.")
self._eventLogger.stagePush("Solve")
residual = self.fields.get("residual")
#self.jacobian.view() # TEMPORARY
self.solver.solve(dispIncr, self.jacobian, residual)
#dispIncr.view("DISP INCR") # TEMPORARY
# DEBUGGING Verify solution makes residual 0
#self._reformResidual(t+dt, dt)
#residual.view("RESIDUAL")
self._eventLogger.stagePop()
return
def poststep(self, t, dt):
"""
Hook for doing stuff after advancing time step.
"""
comm = self.mesh().comm()
# Update displacement field from time t to time t+dt.
dispIncr = self.fields.get("dispIncr(t->t+dt)")
disp = self.fields.get("disp(t)")
disp.add(dispIncr)
dispIncr.zeroAll()
# Complete post-step processing, then write data.
Formulation.poststep(self, t, dt)
# Write data. Velocity at time t will be based upon displacement
# at time t-dt and t.
if 0 == comm.rank:
self._info.log("Writing solution fields.")
for output in self.output.components():
output.writeData(t+dt, self.fields)
self._writeData(t+dt)
return
def prestepElastic(self, t, dt):
"""
Hook for doing stuff before advancing time step.
"""
comm = self.mesh().comm()
if 0 == comm.rank:
self._info.log("Setting constraints.")
disp = self.fields.get("dispIncr(t->t+dt)")
disp.zeroAll()
for constraint in self.constraints:
constraint.setField(t+dt, disp)
needNewJacobian = False
for integrator in self.integrators:
integrator.timeStep(dt)
if integrator.needNewJacobian():
needNewJacobian = True
if self._collectNeedNewJacobian(needNewJacobian):
self._reformJacobian(t, dt)
return
def finalize(self):
"""
Cleanup after time stepping.
"""
Formulation.finalize(self)
return
# PRIVATE METHODS ////////////////////////////////////////////////////
def _configure(self):
"""
Set members based using inventory.
"""
Formulation._configure(self)
import journal
self._debug = journal.debug(self.name)
return
class TestJacobian(unittest.TestCase):
"""
Unit testing of Jacobian object.
"""
def setUp(self):
"""
Setup mesh and associated field.
"""
from spatialdata.geocoords.CSCart import CSCart
cs = CSCart()
cs.inventory.spaceDim = 2
cs._configure()
from spatialdata.units.Nondimensional import Nondimensional
normalizer = Nondimensional()
normalizer._configure()
from pylith.meshio.MeshIOAscii import MeshIOAscii
importer = MeshIOAscii()
importer.inventory.filename = "data/tri3.mesh"
importer.inventory.coordsys = cs
importer._configure()
self.mesh = importer.read(debug=False, interpolate=False)
from pylith.topology.SolutionFields import SolutionFields
fields = SolutionFields(self.mesh)
fields.add("disp t+dt", "displacement")
fields.solutionName("disp t+dt")
solution = fields.solution()
solution.newSection(solution.VERTICES_FIELD, self.mesh.dimension())
solution.allocate()
solution.zero()
self.fields = fields
self.jacobian = Jacobian(solution)
return
def tearDown(self):
self.jacobian.cleanup()
return
def test_constructor(self):
"""
Test constructor.
"""
# setUp() tests constructor with default type
jacobianA = Jacobian(self.fields.solution(), "aij")
jacobianB = Jacobian(self.fields.solution(), "baij")
return
def test_matrix(self):
"""
Test matrix().
:WARNING: This is not a complete test of matrix(). We do not
verify the results.
"""
matrix = self.jacobian.matrix()
# No testing of result.
return
def test_assemble(self):
"""
Test assemble().
:WARNING: This is not a complete test of assemble(). We do not
verify the results.
"""
self.jacobian.assemble("flush_assembly")
self.jacobian.assemble("final_assembly")
# No testing of result.
return
def test_zero(self):
"""
Test zero().
:WARNING: This is not a complete test of zero(). We do not
verify the results.
"""
self.jacobian.zero()
# No testing of result.
return
def test_view(self):
"""
Test view().
:WARNING: This is not a complete test of view(). We do not
verify the results.
"""
self.jacobian.assemble("final_assembly")
self.jacobian.view()
# No testing of result.
return
def test_write(self):
"""
Test write().
:WARNING: This is not a complete test of write(). We do not
verify the results.
"""
self.jacobian = Jacobian(self.fields.solution(), "aij")
self.jacobian.assemble("final_assembly")
self.jacobian.write("jacobian.mat", self.mesh.comm())
# No testing of result.
return
class TestJacobian(unittest.TestCase):
"""
Unit testing of Jacobian object.
"""
def setUp(self):
"""
Setup mesh and associated field.
"""
from spatialdata.geocoords.CSCart import CSCart
cs = CSCart()
cs.inventory.spaceDim = 2
cs._configure()
from spatialdata.units.Nondimensional import Nondimensional
normalizer = Nondimensional()
normalizer._configure()
from pylith.meshio.MeshIOAscii import MeshIOAscii
importer = MeshIOAscii()
importer.inventory.filename = "data/tri3.mesh"
importer.inventory.coordsys = cs
importer._configure()
self.mesh = importer.read(debug=False, interpolate=False)
from pylith.topology.SolutionFields import SolutionFields
fields = SolutionFields(self.mesh)
fields.add("disp t+dt", "displacement")
fields.solutionName("disp t+dt")
solution = fields.solution()
solution.newSection(solution.VERTICES_FIELD, self.mesh.dimension())
solution.allocate()
solution.zero()
self.fields = fields
self.jacobian = Jacobian(solution)
return
def tearDown(self):
self.jacobian.cleanup()
return
def test_constructor(self):
"""
Test constructor.
"""
# setUp() tests constructor with default type
jacobianA = Jacobian(self.fields.solution(), "aij")
jacobianB = Jacobian(self.fields.solution(), "baij")
return
def test_matrix(self):
"""
Test matrix().
:WARNING: This is not a complete test of matrix(). We do not
verify the results.
"""
matrix = self.jacobian.matrix()
# No testing of result.
return
def test_assemble(self):
"""
Test assemble().
:WARNING: This is not a complete test of assemble(). We do not
verify the results.
"""
self.jacobian.assemble("flush_assembly")
self.jacobian.assemble("final_assembly")
# No testing of result.
return
def test_zero(self):
"""
Test zero().
:WARNING: This is not a complete test of zero(). We do not
verify the results.
"""
self.jacobian.zero()
# No testing of result.
return
def test_view(self):
"""
Test view().
:WARNING: This is not a complete test of view(). We do not
verify the results.
"""
self.jacobian.assemble("final_assembly")
self.jacobian.view()
# No testing of result.
return
def test_write(self):
"""
Test write().
:WARNING: This is not a complete test of write(). We do not
verify the results.
"""
self.jacobian = Jacobian(self.fields.solution(), "aij")
self.jacobian.assemble("final_assembly")
self.jacobian.write("jacobian.mat", self.mesh.comm())
# No testing of result.
return
