Replace csparse solvers by Eigen solvers (#378)

Author: alxbilger

bindings/Modules/tests/SofaConstraintSolver/matrix_access.py

@@ -25,7 +25,7 @@ def simulate_pendulum(self):
         root.addObject("StringMeshCreator", name="loader", resolution="20")
 
         root.addObject("EulerImplicitSolver")
-        root.addObject("SparseCholeskySolver")
+        root.addObject("EigenSimplicialLLT")
         root.addObject("GenericConstraintCorrection")
 
         root.addObject("EdgeSetTopologyContainer", position="@loader.position", edges="@loader.edges")

bindings/Sofa/tests/Core/ForceField.py

@@ -23,7 +23,7 @@ def createSolver(node, use_iterative_solver):
         node.addObject('CGLinearSolver', name='linearSolver',
                        iterations=30, tolerance=1.e-9, threshold=1.e-9)
     else:
-        node.addObject('SparseCholeskySolver', name='ldlSolver')
+        node.addObject('EigenSimplicialLLT', name='ldlSolver')
 
 
 def createParticle(node, node_name, use_implicit_scheme, use_iterative_solver):

examples/access_compliance_matrix.py

@@ -27,7 +27,7 @@ def createScene(root):
     root.addObject("StringMeshCreator", name="loader", resolution="20")
 
     root.addObject("EulerImplicitSolver")
-    root.addObject("SparseCholeskySolver")
+    root.addObject("EigenSimplicialLLT")
     root.addObject("GenericConstraintCorrection")
 
     root.addObject("EdgeSetTopologyContainer", name="topo", position="@loader.position", edges="@loader.edges")