Fix restart logic in python FSI

SU2_CFD/include/drivers/CDriver.hpp

@@ -525,7 +525,11 @@ class CDriver {
    * \param[in] iVertex - Vertex identifier.
    * \return Unit normal (vector) at the vertex.
    */
-  vector<passivedouble> GetVertexUnitNormal(unsigned short iMarker, unsigned long iVertex) const;
+  vector<passivedouble> GetVertexNormal(unsigned short iMarker, unsigned long iVertex, bool unitNormal = false) const;
+
+  inline vector<passivedouble> GetVertexUnitNormal(unsigned short iMarker, unsigned long iVertex) const {
+    return GetVertexNormal(iMarker, iVertex, true);
+  }
 
   /*!
    * \brief Get all the boundary markers tags.

SU2_CFD/src/python_wrapper_structure.cpp

@@ -228,7 +228,7 @@ vector<passivedouble> CDriver::GetInitialMeshCoord(unsigned short iMarker, unsig
   return coord_passive;
 }
 
-vector<passivedouble> CDriver::GetVertexUnitNormal(unsigned short iMarker, unsigned long iVertex) const {
+vector<passivedouble> CDriver::GetVertexNormal(unsigned short iMarker, unsigned long iVertex, bool unitNormal) const {
 
   su2double *Normal;
   su2double Area;
@@ -237,6 +237,15 @@ vector<passivedouble> CDriver::GetVertexUnitNormal(unsigned short iMarker, unsig
 
   Normal = geometry_container[ZONE_0][INST_0][MESH_0]->vertex[iMarker][iVertex]->GetNormal();
 
+  if (!unitNormal) {
+
+    ret_Normal_passive[0] = SU2_TYPE::GetValue(Normal[0]);
+    ret_Normal_passive[1] = SU2_TYPE::GetValue(Normal[1]);
+    if(nDim>2) ret_Normal_passive[2] = SU2_TYPE::GetValue(Normal[2]);
+
+    return ret_Normal_passive;
+  }
+
   Area = GeometryToolbox::Norm(nDim, Normal);
 
   ret_Normal[0] = Normal[0]/Area;

SU2_CFD/src/solvers/CMeshSolver.cpp

@@ -284,6 +284,7 @@ void CMeshSolver::SetMinMaxVolume(CGeometry *geometry, CConfig *config, bool upd
   SU2_OMP_BARRIER
 
   AD::EndPassive(wasActive);
+
 }
 
 void CMeshSolver::SetWallDistance(CGeometry *geometry, CConfig *config) {

SU2_PY/FSI_tools/FSIInterface.py

@@ -1900,8 +1900,8 @@ def UnsteadyFSI(self,FSI_config, FluidSolver, SolidSolver):
 
           if FSI_config['RESTART_SOL'] == 'YES':
             NbTimeIter = ((totTime)/deltaT)-1
-            time = (FSI_config['RESTART_ITER']+1)*deltaT
-            TimeIter = FSI_config['RESTART_ITER']+1
+            time = (FSI_config['RESTART_ITER'])*deltaT
+            TimeIter = FSI_config['RESTART_ITER']
           else:
             NbTimeIter = (totTime/deltaT)-1		# number of time iterations
             time = 0.0					# initial time
@@ -1922,13 +1922,6 @@ def UnsteadyFSI(self,FSI_config, FluidSolver, SolidSolver):
             TimeIterTreshold = -1
             self.getSolidInterfaceDisplacement(SolidSolver)
             self.displacementPredictor(FSI_config, SolidSolver, deltaT)
-            # We need now to update the solution because both restarter functions (solid and fluid)
-            # load the files in the solution containers, pushing back the previous solutions. We need
-            # then to push it back once more to compute the solution at the next time level
-            # Also this is required because in the fluid iteration preprocessor, if we do not update
-            # and step to the next time level, there is a flag "fsi" that will initialise the flow
-            if myid in self.fluidSolverProcessors:
-              FluidSolver.Update()
             if myid in self.solidSolverProcessors:
               SolidSolver.updateSolution()
           #If no restart

SU2_PY/FSI_tools/FSI_config.py

@@ -122,3 +122,6 @@ def applyDefaults(self):
         if self._ConfigContent["CSD_SOLVER"] == "IMPOSED":
             self._ConfigContent["AITKEN_RELAX"] = "STATIC"
             self._ConfigContent["AITKEN_PARAM"] = 1.0
+
+        if self._ConfigContent["RESTART_SOL"] == "YES":
+            self._ConfigContent["TIME_TRESHOLD"] = -1

SU2_PY/SU2_Nastran/pysu2_nastran.py

@@ -722,7 +722,7 @@ def __computeInterfacePosVel(self, initialize):
     Y_disp = self.Uy.dot(self.q)
     Z_disp = self.Uz.dot(self.q)
 
-    for iPoint in range(len(self.node)):
+    for iPoint in range(self.nPoint):
       coord0 = self.node[iPoint].GetCoord0()
       self.node[iPoint].SetCoord((X_disp[iPoint]+coord0[0],Y_disp[iPoint]+coord0[1],Z_disp[iPoint]+coord0[2]))
       self.node[iPoint].SetVel((X_vel[iPoint],Y_vel[iPoint],Z_vel[iPoint]))
@@ -870,7 +870,7 @@ def __setRestart(self, timeIter):
             print("The restart iteration was not found in the structural history")
             break
           line = line.strip('\r\n').split()
-          if int(line[1])==(self.Config["RESTART_ITER"]-1):
+          if int(line[1])==(self.Config["RESTART_ITER"]-2):
             break
       index = 0
       for index_mode in range(self.nDof):
@@ -896,7 +896,7 @@ def __setRestart(self, timeIter):
             print("The restart iteration was not found in the structural history")
             break
           line = line.strip('\r\n').split()
-          if int(line[1])==self.Config["RESTART_ITER"]:
+          if int(line[1])==(self.Config["RESTART_ITER"]-1):
             break
       index = 0
       for index_mode in range(self.nDof):
@@ -935,11 +935,7 @@ def updateSolution(self):
     self.__reset(self.qddot)
     self.__reset(self.a)
 
-    makerID = list(self.markers.keys())
-    makerID = makerID[0]
-    nodeList = self.markers[makerID]
-
-    for iPoint in nodeList:
+    for iPoint in range(self.nPoint):
       self.node[iPoint].updateCoordVel()