Update for '1uc/neuron_variables'. (#6)

parameter/coreneuron/neuron_variables.cpp

@@ -0,0 +1,277 @@
+/*********************************************************
+Model Name      : NeuronVariables
+Filename        : neuron_variables.mod
+NMODL Version   : 7.7.0
+Vectorized      : true
+Threadsafe      : true
+Created         : DATE
+Simulator       : CoreNEURON
+Backend         : C++ (api-compatibility)
+NMODL Compiler  : VERSION
+*********************************************************/
+
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <coreneuron/gpu/nrn_acc_manager.hpp>
+#include <coreneuron/mechanism/mech/mod2c_core_thread.hpp>
+#include <coreneuron/mechanism/register_mech.hpp>
+#include <coreneuron/nrnconf.h>
+#include <coreneuron/nrniv/nrniv_decl.h>
+#include <coreneuron/sim/multicore.hpp>
+#include <coreneuron/sim/scopmath/newton_thread.hpp>
+#include <coreneuron/utils/ivocvect.hpp>
+#include <coreneuron/utils/nrnoc_aux.hpp>
+#include <coreneuron/utils/randoms/nrnran123.h>
+
+
+namespace coreneuron {
+    #ifndef NRN_PRCELLSTATE
+    #define NRN_PRCELLSTATE 0
+    #endif
+
+
+    /** channel information */
+    static const char *mechanism_info[] = {
+        "7.7.0",
+        "NeuronVariables",
+        0,
+        "range_celsius_NeuronVariables",
+        0,
+        0,
+        0
+    };
+
+
+    /** all global variables */
+    struct NeuronVariables_Store {
+        int reset{};
+        int mech_type{};
+    };
+    static_assert(std::is_trivially_copy_constructible_v<NeuronVariables_Store>);
+    static_assert(std::is_trivially_move_constructible_v<NeuronVariables_Store>);
+    static_assert(std::is_trivially_copy_assignable_v<NeuronVariables_Store>);
+    static_assert(std::is_trivially_move_assignable_v<NeuronVariables_Store>);
+    static_assert(std::is_trivially_destructible_v<NeuronVariables_Store>);
+    NeuronVariables_Store NeuronVariables_global;
+
+
+    /** all mechanism instance variables and global variables */
+    struct NeuronVariables_Instance  {
+        double* celsius{&coreneuron::celsius};
+        double* range_celsius{};
+        double* v_unused{};
+        double* g_unused{};
+        NeuronVariables_Store* global{&NeuronVariables_global};
+    };
+
+
+    /** connect global (scalar) variables to hoc -- */
+    static DoubScal hoc_scalar_double[] = {
+        {nullptr, nullptr}
+    };
+
+
+    /** connect global (array) variables to hoc -- */
+    static DoubVec hoc_vector_double[] = {
+        {nullptr, nullptr, 0}
+    };
+
+
+    static inline int first_pointer_var_index() {
+        return -1;
+    }
+
+
+    static inline int first_random_var_index() {
+        return -1;
+    }
+
+
+    static inline int float_variables_size() {
+        return 3;
+    }
+
+
+    static inline int int_variables_size() {
+        return 0;
+    }
+
+
+    static inline int get_mech_type() {
+        return NeuronVariables_global.mech_type;
+    }
+
+
+    static inline Memb_list* get_memb_list(NrnThread* nt) {
+        if (!nt->_ml_list) {
+            return nullptr;
+        }
+        return nt->_ml_list[get_mech_type()];
+    }
+
+
+    static inline void* mem_alloc(size_t num, size_t size, size_t alignment = 16) {
+        void* ptr;
+        posix_memalign(&ptr, alignment, num*size);
+        memset(ptr, 0, size);
+        return ptr;
+    }
+
+
+    static inline void mem_free(void* ptr) {
+        free(ptr);
+    }
+
+
+    static inline void coreneuron_abort() {
+        abort();
+    }
+
+    // Allocate instance structure
+    static void nrn_private_constructor_NeuronVariables(NrnThread* nt, Memb_list* ml, int type) {
+        assert(!ml->instance);
+        assert(!ml->global_variables);
+        assert(ml->global_variables_size == 0);
+        auto* const inst = new NeuronVariables_Instance{};
+        assert(inst->global == &NeuronVariables_global);
+        ml->instance = inst;
+        ml->global_variables = inst->global;
+        ml->global_variables_size = sizeof(NeuronVariables_Store);
+    }
+
+    // Deallocate the instance structure
+    static void nrn_private_destructor_NeuronVariables(NrnThread* nt, Memb_list* ml, int type) {
+        auto* const inst = static_cast<NeuronVariables_Instance*>(ml->instance);
+        assert(inst);
+        assert(inst->global);
+        assert(inst->global == &NeuronVariables_global);
+        assert(inst->global == ml->global_variables);
+        assert(ml->global_variables_size == sizeof(NeuronVariables_Store));
+        delete inst;
+        ml->instance = nullptr;
+        ml->global_variables = nullptr;
+        ml->global_variables_size = 0;
+    }
+
+    /** initialize mechanism instance variables */
+    static inline void setup_instance(NrnThread* nt, Memb_list* ml) {
+        auto* const inst = static_cast<NeuronVariables_Instance*>(ml->instance);
+        assert(inst);
+        assert(inst->global);
+        assert(inst->global == &NeuronVariables_global);
+        assert(inst->global == ml->global_variables);
+        assert(ml->global_variables_size == sizeof(NeuronVariables_Store));
+        int pnodecount = ml->_nodecount_padded;
+        Datum* indexes = ml->pdata;
+        inst->range_celsius = ml->data+0*pnodecount;
+        inst->v_unused = ml->data+1*pnodecount;
+        inst->g_unused = ml->data+2*pnodecount;
+    }
+
+
+
+    static void nrn_alloc_NeuronVariables(double* data, Datum* indexes, int type) {
+        // do nothing
+    }
+
+
+    void nrn_constructor_NeuronVariables(NrnThread* nt, Memb_list* ml, int type) {
+        #ifndef CORENEURON_BUILD
+        int nodecount = ml->nodecount;
+        int pnodecount = ml->_nodecount_padded;
+        const int* node_index = ml->nodeindices;
+        double* data = ml->data;
+        const double* voltage = nt->_actual_v;
+        Datum* indexes = ml->pdata;
+        ThreadDatum* thread = ml->_thread;
+        auto* const inst = static_cast<NeuronVariables_Instance*>(ml->instance);
+
+        #endif
+    }
+
+
+    void nrn_destructor_NeuronVariables(NrnThread* nt, Memb_list* ml, int type) {
+        #ifndef CORENEURON_BUILD
+        int nodecount = ml->nodecount;
+        int pnodecount = ml->_nodecount_padded;
+        const int* node_index = ml->nodeindices;
+        double* data = ml->data;
+        const double* voltage = nt->_actual_v;
+        Datum* indexes = ml->pdata;
+        ThreadDatum* thread = ml->_thread;
+        auto* const inst = static_cast<NeuronVariables_Instance*>(ml->instance);
+
+        #endif
+    }
+
+
+    /** initialize channel */
+    void nrn_init_NeuronVariables(NrnThread* nt, Memb_list* ml, int type) {
+        int nodecount = ml->nodecount;
+        int pnodecount = ml->_nodecount_padded;
+        const int* node_index = ml->nodeindices;
+        double* data = ml->data;
+        const double* voltage = nt->_actual_v;
+        Datum* indexes = ml->pdata;
+        ThreadDatum* thread = ml->_thread;
+
+        setup_instance(nt, ml);
+        auto* const inst = static_cast<NeuronVariables_Instance*>(ml->instance);
+
+        if (_nrn_skip_initmodel == 0) {
+            #pragma omp simd
+            #pragma ivdep
+            for (int id = 0; id < nodecount; id++) {
+                int node_id = node_index[id];
+                double v = voltage[node_id];
+                #if NRN_PRCELLSTATE
+                inst->v_unused[id] = v;
+                #endif
+            }
+        }
+    }
+
+
+    /** update state */
+    void nrn_state_NeuronVariables(NrnThread* nt, Memb_list* ml, int type) {
+        int nodecount = ml->nodecount;
+        int pnodecount = ml->_nodecount_padded;
+        const int* node_index = ml->nodeindices;
+        double* data = ml->data;
+        const double* voltage = nt->_actual_v;
+        Datum* indexes = ml->pdata;
+        ThreadDatum* thread = ml->_thread;
+        auto* const inst = static_cast<NeuronVariables_Instance*>(ml->instance);
+
+        #pragma omp simd
+        #pragma ivdep
+        for (int id = 0; id < nodecount; id++) {
+            int node_id = node_index[id];
+            double v = voltage[node_id];
+            #if NRN_PRCELLSTATE
+            inst->v_unused[id] = v;
+            #endif
+            inst->range_celsius[id] = *(inst->celsius);
+        }
+    }
+
+
+    /** register channel with the simulator */
+    void _neuron_variables_reg() {
+
+        int mech_type = nrn_get_mechtype("NeuronVariables");
+        NeuronVariables_global.mech_type = mech_type;
+        if (mech_type == -1) {
+            return;
+        }
+
+        _nrn_layout_reg(mech_type, 0);
+        register_mech(mechanism_info, nrn_alloc_NeuronVariables, nullptr, nullptr, nrn_state_NeuronVariables, nrn_init_NeuronVariables, nrn_private_constructor_NeuronVariables, nrn_private_destructor_NeuronVariables, first_pointer_var_index(), 1);
+
+        hoc_register_prop_size(mech_type, float_variables_size(), int_variables_size());
+        hoc_register_var(hoc_scalar_double, hoc_vector_double, NULL);
+    }
+}