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author | Jaron Kent-Dobias <jaron@kent-dobias.com> | 2017-02-10 12:19:46 -0500 |
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committer | Jaron Kent-Dobias <jaron@kent-dobias.com> | 2017-02-10 12:19:46 -0500 |
commit | 0ef0c0ce1d904be2b4e1f4da62dc029d8572c983 (patch) | |
tree | 12978013d870186240c08d1fdd6a7ce8781bca93 /lib/factor_update.c | |
parent | 9a93a3b88a604672f557950e6c7f3fe815bcf163 (diff) | |
parent | 901b9f16494f37890be17ef4bb66e6efc6873340 (diff) | |
download | fuse_networks-0ef0c0ce1d904be2b4e1f4da62dc029d8572c983.tar.gz fuse_networks-0ef0c0ce1d904be2b4e1f4da62dc029d8572c983.tar.bz2 fuse_networks-0ef0c0ce1d904be2b4e1f4da62dc029d8572c983.zip |
Merge branch 'tmp'
Diffstat (limited to 'lib/factor_update.c')
-rw-r--r-- | lib/factor_update.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/lib/factor_update.c b/lib/factor_update.c new file mode 100644 index 0000000..a51705a --- /dev/null +++ b/lib/factor_update.c @@ -0,0 +1,68 @@ + +#include "fracture.h" + +void factor_update(cholmod_factor *factor, uint_t v1, uint_t v2, cholmod_common *c) { + uint_t n = factor->n; + + cholmod_sparse *update_mat = + CHOL_F(allocate_sparse)(n, n, 2, true, true, 0, CHOLMOD_REAL, c); + + uint_t s1, s2; + s1 = v1 < v2 ? v1 : v2; + s2 = v1 > v2 ? v1 : v2; + + int_t *pp = (int_t *)update_mat->p; + int_t *ii = (int_t *)update_mat->i; + double *xx = (double *)update_mat->x; + + for (uint_t i = 0; i <= s1; i++) { + pp[i] = 0; + } + + for (uint_t i = s1 + 1; i <= n; i++) { + pp[i] = 2; + } + + ii[0] = s1; + ii[1] = s2; + xx[0] = 1; + xx[1] = -1; + + cholmod_sparse *perm_update_mat = CHOL_F(submatrix)( + update_mat, factor->Perm, factor->n, NULL, -1, true, true, c); + + CHOL_F(updown)(false, perm_update_mat, factor, c); + + CHOL_F(free_sparse)(&perm_update_mat, c); + CHOL_F(free_sparse)(&update_mat, c); +} + +void factor_update2(cholmod_factor *factor, uint_t v, cholmod_common *c) { + uint_t n = factor->n; + + cholmod_sparse *update_mat = + CHOL_F(allocate_sparse)(n, n, 1, true, true, 0, CHOLMOD_REAL, c); + + int_t *pp = (int_t *)update_mat->p; + int_t *ii = (int_t *)update_mat->i; + double *xx = (double *)update_mat->x; + + for (uint_t i = 0; i <= v; i++) { + pp[i] = 0; + } + + for (uint_t i = v + 1; i <= n; i++) { + pp[i] = 1; + } + + ii[0] = v; + xx[0] = 1; + + cholmod_sparse *perm_update_mat = CHOL_F(submatrix)( + update_mat, factor->Perm, factor->n, NULL, -1, true, true, c); + + CHOL_F(updown)(false, perm_update_mat, factor, c); + + CHOL_F(free_sparse)(&perm_update_mat, c); + CHOL_F(free_sparse)(&update_mat, c); +} |