Implemented compute eff field in sim class. Simplified interactions array. Fixed circular dependency in sim and energy class headers

Author: davidcortesortuno

fidimag/common/c_clib.pyx

@@ -307,8 +307,7 @@ cdef class PyEnergy:
         return self.thisptr.compute_energy()
 
     def add_interaction_to_sim(self, PyMicroSim sim):
-        sim.thisptr.add_interaction(<void *> self.thisptr,
-                                    self.thisptr.interaction_id)
+        sim.thisptr.add_interaction(<Energy *> self.thisptr)
 
     def get_interaction_id(self):
         return self._thisptr.interaction_id
@@ -375,8 +374,7 @@ cdef extern from "c_micro_sim.h":
                    double *energy, double *field, int *pins
                    )
 
-        void add_interaction(void * interaction, int int_id)
-        void print_interactions_id()
+        void add_interaction(Energy * interaction)
 
 
 cdef class PyMicroSim(object):
@@ -406,5 +404,3 @@ cdef class PyMicroSim(object):
 
     def add_interaction(self, Interaction):
         Interaction.add_interaction_to_sim(self)
-        self.thisptr.print_interactions_id()
-

native/include/c_energy.h

@@ -46,7 +46,7 @@ class AnisotropyEnergy : public Energy {
 public:
     AnisotropyEnergy() {
         std::cout << "Instatiating AnisotropyEnergy class; at " << this << "\n";
-        this->interaction_id = 1;
+        this->interaction_id = UNIAXIAL_ANISOTROPY;
     };
     ~AnisotropyEnergy() {std::cout << "Killing Anisotropy\n";};
     double *Ku;
@@ -64,7 +64,7 @@ class DMIEnergy : public Energy {
 public:
     DMIEnergy() {
         std::cout << "Instatiating DMIEnergy class; at " << this << "\n";
-        this->interaction_id = 1;
+        this->interaction_id = DMI;
     };
     ~DMIEnergy() {std::cout << "Killing DMI\n";};
     double *D;

native/include/c_micro_sim.h

@@ -2,8 +2,10 @@
 #include<cmath>
 #include<iostream>
 #include<vector>
+#include<memory>
 // #define MAX_ENERGY_TERMS 20
 
+class Energy;  // forward declaration; Energy is defined in c_energy.h
 class MicroSim {
 public:
     MicroSim() {std::cout << "Instatiating MicroSim class; at " << this << "\n";};
@@ -28,22 +30,27 @@ class MicroSim {
     // Array with interactions
     // void * interactions;
     // int interactions_id[MAX_ENERGY_TERMS];
-    std::vector<void *> interactions;
-    std::vector<int> interactions_id;
+    // Should we use a vector of weak_ptr? : std::vector<std::weak_ptr<Energy>> interactions;
+    std::vector<Energy *> interactions;
+
+    // Not necessary at least we re creating an array of void pointers:
+    // std::vector<int> interactions_id;
 
     // Methods
     void setup(int nx, int ny, int nz, double dx, double dy, double dz,
-               double unit_length, double *coordinates, int *ngbs, 
-               double *spin, double *Ms, double *Ms_inv, 
+               double unit_length, double *coordinates, int *ngbs,
+               double *spin, double *Ms, double *Ms_inv,
                double *energy, double *field, int *pins
                );
 
-    void add_interaction(void * interaction, int int_id);
+    void add_interaction(Energy * interaction);
+
+    // void print_interactions_id() {
+    //     for(int i : interactions_id) std::cout << i << "\n";
+    //     for(auto i : interactions) std::cout << i << "\n";
+    // }
 
-    void print_interactions_id() {
-        for(int i : interactions_id) std::cout << i << "\n";
-        for(auto i : interactions) std::cout << i << "\n";
-    }
+    void compute_effective_field(double t);
 };
 
 enum EnergyTermIDs {

native/src/c_micro_sim.cpp

@@ -1,10 +1,11 @@
+#include "c_energy.h"
 #include "c_micro_sim.h"
 #include "c_constants.h"
 
 
 void MicroSim::setup(int nx, int ny, int nz, double dx, double dy, double dz,
-                     double unit_length, double *coordinates, int *ngbs, 
-                     double *spin, double *Ms, double *Ms_inv, 
+                     double unit_length, double *coordinates, int *ngbs,
+                     double *spin, double *Ms, double *Ms_inv,
                      double *energy, double *field, int *pins
                      ) {
 
@@ -29,9 +30,18 @@ void MicroSim::setup(int nx, int ny, int nz, double dx, double dy, double dz,
     set_up = true;
 }
 
-void MicroSim::add_interaction(void * interaction_ptr, int int_id) {
-    
+void MicroSim::add_interaction(Energy * interaction_ptr) {
+
     interactions.push_back(interaction_ptr);
-    interactions_id.push_back(int_id);
+    // interactions_id.push_back(int_id);
+
+}
+
+void MicroSim::compute_effective_field(double t) {
 
+    // Using indices
+    std::vector<Energy *>::iterator it;
+    for(it = interactions.begin(); it != interactions.end(); it++) {
+        (*it)->compute_field(t);
+    }
 }

native/src/m_dmi.cpp

@@ -373,6 +373,7 @@ void dmi_field(double * m, double * field,
 
 void DMIEnergy::compute_field(double t) {
 
+    // Should use: std::unique_ptr<int[]> dxs ??
     /* These are for the DMI prefactor or coefficient */
     double dxs[6] = {dx, dx, dy, dy, dz, dz};