From 07906baa42470bad14d2c40f57967691f6118969 Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Thu, 1 Nov 2018 12:33:37 -0400
Subject: revamped and simplied fracture code with c++

---
 lib/gen_laplacian.c | 142 ----------------------------------------------------
 1 file changed, 142 deletions(-)
 delete mode 100644 lib/gen_laplacian.c

(limited to 'lib/gen_laplacian.c')

diff --git a/lib/gen_laplacian.c b/lib/gen_laplacian.c
deleted file mode 100644
index 75dccce..0000000
--- a/lib/gen_laplacian.c
+++ /dev/null
@@ -1,142 +0,0 @@
-
-#include "fracture.h"
-
-cholmod_sparse *gen_adjacency(const net_t *net, bool dual, bool use_gp,
-                              bool symmetric, cholmod_common *c) {
-  const graph_t *g = net->graph;
-  uint_t nv;
-  uint_t ne;
-  uint_t nre;
-  uint_t *ev;
-
-  if (use_gp) {
-    nv = net->dim;
-    ne = net->nep;
-    nre = (int_t)net->nep - (int_t)net->num_broken;
-    ev = net->evp;
-  } else if (dual) {
-    nv = g->dnv;
-    ne = g->ne;
-    nre = net->num_broken;
-    ev = g->dev;
-  } else {
-    nv = g->nv;
-    ne = g->ne;
-    nre = (int_t)g->ne - (int_t)net->num_broken;
-    ev = g->ev;
-  }
-
-  uint_t nnz = nre;
-
-  cholmod_triplet *t =
-      CHOL_F(allocate_triplet)(nv, nv, nnz, 1, CHOLMOD_REAL, c);
-
-  int_t *ri = (int_t *)t->i;
-  int_t *ci = (int_t *)t->j;
-  double *ai = (double *)t->x;
-
-  t->nnz = nnz;
-
-  uint_t a = 0;
-
-  for (uint_t i = 0; i < ne; i++) {
-    if ((net->fuses[i] && dual) || (!net->fuses[i] && !dual)) {
-      uint_t v1 = ev[2 * i];
-      uint_t v2 = ev[2 * i + 1];
-
-      uint_t s1 = v1 < v2 ? v1 : v2;
-      uint_t s2 = v1 < v2 ? v2 : v1;
-
-      ri[a] = s2;
-      ci[a] = s1;
-      ai[a] = 1;
-
-      a++;
-    }
-  }
-
-  cholmod_sparse *s = CHOL_F(triplet_to_sparse)(t, nnz, c);
-  CHOL_F(free_triplet)(&t, c);
-
-  if (!symmetric) {
-    cholmod_sparse *tmp_s = CHOL_F(copy)(s, 0, 1, c);
-    CHOL_F(free_sparse)(&s, c);
-    s = tmp_s;
-  }
-
-  return s;
-}
-
-cholmod_sparse *gen_laplacian(const net_t *net, cholmod_common *c) {
-  const graph_t *g = net->graph;
-  uint_t nv = net->dim;
-  uint_t ne = net->nep;
-  uint_t *ev = net->evp;
-
-  uint_t nnz = nv;
-
-  cholmod_triplet *temp_m =
-      CHOL_F(allocate_triplet)(nv, nv, nnz, 1, CHOLMOD_REAL, c);
-
-  int_t *rowind = (int_t *)temp_m->i;
-  int_t *colind = (int_t *)temp_m->j;
-  double *acoo = (double *)temp_m->x;
-
-  temp_m->nnz = nnz;
-
-  for (uint_t i = 0; i < nv; i++) {
-    rowind[i] = i;
-    colind[i] = i;
-    acoo[i] = 0;
-  }
-
-  cholmod_sparse *adjacency = gen_adjacency(net, false, true, true, c);
-
-  for (uint_t i = 0; i < ne; i++) {
-    if (!net->fuses[i]) {
-      uint_t v1 = ev[2 * i];
-      uint_t v2 = ev[2 * i + 1];
-
-      acoo[v1]++;
-      acoo[v2]++;
-    }
-  }
-
-  if (net->voltage_bound && g->boundary != TORUS_BOUND) {
-    for (uint_t i = 0; i < net->dim; i++) {
-      uint_t v = g->nbi[i];
-      for (uint_t j = 0; j < g->vei[v + 1] - g->vei[v]; j++) {
-        uint_t e = g->ve[g->vei[v] + j];
-        uint_t v0 = g->ev[2 * e];
-        uint_t v1 = g->ev[2 * e + 1];
-
-        if (g->bq[v0] || g->bq[v1]) {
-          acoo[i]++;
-        }
-      }
-    }
-  } else {
-    acoo[0]++;
-  }
-
-  for (uint_t i = 0; i < nv; i++) {
-    if (acoo[i] == 0)
-      acoo[i]++;
-  }
-
-  // assert(CHOL_F(check_triplet)(temp_m, c));
-
-  cholmod_sparse *t_out = CHOL_F(triplet_to_sparse)(temp_m, nnz, c);
-  // assert(CHOL_F(check_sparse)(t_out, c));
-
-  double alpha[2] = {1, 0};
-  double beta[2] = {-1, 0};
-  cholmod_sparse *laplacian =
-      CHOL_F(add)(t_out, adjacency, alpha, beta, 1, 1, c);
-
-  CHOL_F(free_sparse)(&t_out, c);
-  CHOL_F(free_sparse)(&adjacency, c);
-  CHOL_F(free_triplet)(&temp_m, c);
-
-  return laplacian;
-}
-- 
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