Bug Summary

File:mat/impls/aij/seq/fdaij.c
Warning:line 260, column 30
Dereference of undefined pointer value

Annotated Source Code

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1#include <../src/mat/impls/aij/seq/aij.h>
2#include <../src/mat/impls/baij/seq/baij.h>
3#include <../src/mat/impls/sell/seq/sell.h>
4#include <petsc/private/isimpl.h>
5
6/*
7 This routine is shared by SeqAIJ and SeqBAIJ matrices,
8 since it operators only on the nonzero structure of the elements or blocks.
9*/
10PetscErrorCode MatFDColoringCreate_SeqXAIJ(Mat mat,ISColoring iscoloring,MatFDColoring c)
11{
12 PetscErrorCode ierr;
13 PetscInt bs,nis=iscoloring->n,m=mat->rmap->n;
14 PetscBool isBAIJ,isSELL;
15
16 PetscFunctionBegindo { do { ; if (petscstack && (petscstack->currentsize
< 64)) { petscstack->function[petscstack->currentsize
] = __func__; petscstack->file[petscstack->currentsize]
= "/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
; petscstack->line[petscstack->currentsize] = 16; petscstack
->petscroutine[petscstack->currentsize] = PETSC_TRUE; petscstack
->currentsize++; } if (petscstack) { petscstack->hotdepth
+= (PETSC_FALSE || petscstack->hotdepth); } ; } while (0)
; ; } while (0);
17 /* set default brows and bcols for speedup inserting the dense matrix into sparse Jacobian */
18 ierr = MatGetBlockSize(mat,&bs);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),18,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
19 ierr = PetscObjectTypeCompare((PetscObject)mat,MATSEQBAIJ"seqbaij",&isBAIJ);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),19,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
20 ierr = PetscObjectTypeCompare((PetscObject)mat,MATSEQSELL"seqsell",&isSELL);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),20,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
21 if (isBAIJ) {
22 c->brows = m;
23 c->bcols = 1;
24 } else { /* seqaij matrix */
25 /* bcols is chosen s.t. dy-array takes 50% of memory space as mat */
26 PetscReal mem;
27 PetscInt nz,brows,bcols;
28 if (isSELL) {
29 Mat_SeqSELL *spA = (Mat_SeqSELL*)mat->data;
30 nz = spA->nz;
31 } else {
32 Mat_SeqAIJ *spA = (Mat_SeqAIJ*)mat->data;
33 nz = spA->nz;
34 }
35
36 bs = 1; /* only bs=1 is supported for SeqAIJ matrix */
37
38 mem = nz*(sizeof(PetscScalar) + sizeof(PetscInt)) + 3*m*sizeof(PetscInt);
39 bcols = (PetscInt)(0.5*mem /(m*sizeof(PetscScalar)));
40 brows = 1000/bcols;
41 if (bcols > nis) bcols = nis;
42 if (brows == 0 || brows > m) brows = m;
43 c->brows = brows;
44 c->bcols = bcols;
45 }
46
47 c->M = mat->rmap->N/bs; /* set total rows, columns and local rows */
48 c->N = mat->cmap->N/bs;
49 c->m = mat->rmap->N/bs;
50 c->rstart = 0;
51 c->ncolors = nis;
52 c->ctype = iscoloring->ctype;
53 PetscFunctionReturn(0)do { do { ; if (petscstack && petscstack->currentsize
> 0) { petscstack->currentsize--; petscstack->function
[petscstack->currentsize] = 0; petscstack->file[petscstack
->currentsize] = 0; petscstack->line[petscstack->currentsize
] = 0; petscstack->petscroutine[petscstack->currentsize
] = PETSC_FALSE; } if (petscstack) { petscstack->hotdepth =
(((petscstack->hotdepth-1)<(0)) ? (0) : (petscstack->
hotdepth-1)); } ; } while (0); return(0);} while (0);
54}
55
56/*
57 Reorder Jentry such that blocked brows*bols of entries from dense matrix are inserted into Jacobian for improved cache performance
58 Input Parameters:
59+ mat - the matrix containing the nonzero structure of the Jacobian
60. color - the coloring context
61- nz - number of local non-zeros in mat
62*/
63PetscErrorCode MatFDColoringSetUpBlocked_AIJ_Private(Mat mat,MatFDColoring c,PetscInt nz)
64{
65 PetscErrorCode ierr;
66 PetscInt i,j,nrows,nbcols,brows=c->brows,bcols=c->bcols,mbs=c->m,nis=c->ncolors;
67 PetscInt *color_start,*row_start,*nrows_new,nz_new,row_end;
68
69 PetscFunctionBegindo { do { ; if (petscstack && (petscstack->currentsize
< 64)) { petscstack->function[petscstack->currentsize
] = __func__; petscstack->file[petscstack->currentsize]
= "/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
; petscstack->line[petscstack->currentsize] = 69; petscstack
->petscroutine[petscstack->currentsize] = PETSC_TRUE; petscstack
->currentsize++; } if (petscstack) { petscstack->hotdepth
+= (PETSC_FALSE || petscstack->hotdepth); } ; } while (0)
; ; } while (0);
70 if (brows < 1 || brows > mbs) brows = mbs;
71 ierr = PetscMalloc2(bcols+1,&color_start,bcols,&row_start)PetscMallocA(2,PETSC_FALSE,71,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,(size_t)(bcols+1)*sizeof(**(&color_start)),(&color_start
),(size_t)(bcols)*sizeof(**(&row_start)),(&row_start)
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),71,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
72 ierr = PetscCalloc1(nis,&nrows_new)PetscMallocA(1,PETSC_TRUE,72,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,(size_t)(nis)*sizeof(**(&nrows_new)),(&nrows_new));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),72,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
73 ierr = PetscMalloc1(bcols*mat->rmap->n,&c->dy)PetscMallocA(1,PETSC_FALSE,73,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,(size_t)(bcols*mat->rmap->n)*sizeof(**(&c->dy))
,(&c->dy));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),73,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
74 ierr = PetscLogObjectMemory((PetscObject)c,bcols*mat->rmap->n*sizeof(PetscScalar));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),74,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
75
76 nz_new = 0;
77 nbcols = 0;
78 color_start[bcols] = 0;
79
80 if (c->htype[0] == 'd') { /* ---- c->htype == 'ds', use MatEntry --------*/
81 MatEntry *Jentry_new,*Jentry=c->matentry;
82 ierr = PetscMalloc1(nz,&Jentry_new)PetscMallocA(1,PETSC_FALSE,82,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,(size_t)(nz)*sizeof(**(&Jentry_new)),(&Jentry_new));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),82,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
83 for (i=0; i<nis; i+=bcols) { /* loop over colors */
84 if (i + bcols > nis) {
85 color_start[nis - i] = color_start[bcols];
86 bcols = nis - i;
87 }
88
89 color_start[0] = color_start[bcols];
90 for (j=0; j<bcols; j++) {
91 color_start[j+1] = c->nrows[i+j] + color_start[j];
92 row_start[j] = 0;
93 }
94
95 row_end = brows;
96 if (row_end > mbs) row_end = mbs;
97
98 while (row_end <= mbs) { /* loop over block rows */
99 for (j=0; j<bcols; j++) { /* loop over block columns */
100 nrows = c->nrows[i+j];
101 nz = color_start[j];
102 while (row_start[j] < nrows) {
103 if (Jentry[nz].row >= row_end) {
104 color_start[j] = nz;
105 break;
106 } else { /* copy Jentry[nz] to Jentry_new[nz_new] */
107 Jentry_new[nz_new].row = Jentry[nz].row + j*mbs; /* index in dy-array */
108 Jentry_new[nz_new].col = Jentry[nz].col;
109 Jentry_new[nz_new].valaddr = Jentry[nz].valaddr;
110 nz_new++; nz++; row_start[j]++;
111 }
112 }
113 }
114 if (row_end == mbs) break;
115 row_end += brows;
116 if (row_end > mbs) row_end = mbs;
117 }
118 nrows_new[nbcols++] = nz_new;
119 }
120 ierr = PetscFree(Jentry)((*PetscTrFree)((void*)(Jentry),120,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
) || ((Jentry) = 0,0));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),120,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
121 c->matentry = Jentry_new;
122 } else { /* --------- c->htype == 'wp', use MatEntry2 ------------------*/
123 MatEntry2 *Jentry2_new,*Jentry2=c->matentry2;
124 ierr = PetscMalloc1(nz,&Jentry2_new)PetscMallocA(1,PETSC_FALSE,124,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,(size_t)(nz)*sizeof(**(&Jentry2_new)),(&Jentry2_new)
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),124,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
125 for (i=0; i<nis; i+=bcols) { /* loop over colors */
126 if (i + bcols > nis) {
127 color_start[nis - i] = color_start[bcols];
128 bcols = nis - i;
129 }
130
131 color_start[0] = color_start[bcols];
132 for (j=0; j<bcols; j++) {
133 color_start[j+1] = c->nrows[i+j] + color_start[j];
134 row_start[j] = 0;
135 }
136
137 row_end = brows;
138 if (row_end > mbs) row_end = mbs;
139
140 while (row_end <= mbs) { /* loop over block rows */
141 for (j=0; j<bcols; j++) { /* loop over block columns */
142 nrows = c->nrows[i+j];
143 nz = color_start[j];
144 while (row_start[j] < nrows) {
145 if (Jentry2[nz].row >= row_end) {
146 color_start[j] = nz;
147 break;
148 } else { /* copy Jentry2[nz] to Jentry2_new[nz_new] */
149 Jentry2_new[nz_new].row = Jentry2[nz].row + j*mbs; /* index in dy-array */
150 Jentry2_new[nz_new].valaddr = Jentry2[nz].valaddr;
151 nz_new++; nz++; row_start[j]++;
152 }
153 }
154 }
155 if (row_end == mbs) break;
156 row_end += brows;
157 if (row_end > mbs) row_end = mbs;
158 }
159 nrows_new[nbcols++] = nz_new;
160 }
161 ierr = PetscFree(Jentry2)((*PetscTrFree)((void*)(Jentry2),161,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
) || ((Jentry2) = 0,0));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),161,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
162 c->matentry2 = Jentry2_new;
163 } /* ---------------------------------------------*/
164
165 ierr = PetscFree2(color_start,row_start)PetscFreeA(2,165,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,&(color_start),&(row_start));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),165,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
166
167 for (i=nbcols-1; i>0; i--) nrows_new[i] -= nrows_new[i-1];
168 ierr = PetscFree(c->nrows)((*PetscTrFree)((void*)(c->nrows),168,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
) || ((c->nrows) = 0,0));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),168,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
169 c->nrows = nrows_new;
170 PetscFunctionReturn(0)do { do { ; if (petscstack && petscstack->currentsize
> 0) { petscstack->currentsize--; petscstack->function
[petscstack->currentsize] = 0; petscstack->file[petscstack
->currentsize] = 0; petscstack->line[petscstack->currentsize
] = 0; petscstack->petscroutine[petscstack->currentsize
] = PETSC_FALSE; } if (petscstack) { petscstack->hotdepth =
(((petscstack->hotdepth-1)<(0)) ? (0) : (petscstack->
hotdepth-1)); } ; } while (0); return(0);} while (0);
171}
172
173PetscErrorCode MatFDColoringSetUp_SeqXAIJ(Mat mat,ISColoring iscoloring,MatFDColoring c)
174{
175 PetscErrorCode ierr;
176 PetscInt i,n,nrows,mbs=c->m,j,k,m,ncols,col,nis=iscoloring->n,*rowhit,bs,bs2,*spidx,nz,tmp;
177 const PetscInt *is,*row,*ci,*cj;
178 PetscBool isBAIJ,isSELL;
179 const PetscScalar *A_val;
180 PetscScalar **valaddrhit;
181 MatEntry *Jentry;
1
'Jentry' declared without an initial value
→
182 MatEntry2 *Jentry2;
183
184 PetscFunctionBegindo { do { ; if (petscstack && (petscstack->currentsize
< 64)) { petscstack->function[petscstack->currentsize
] = __func__; petscstack->file[petscstack->currentsize]
= "/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
; petscstack->line[petscstack->currentsize] = 184; petscstack
->petscroutine[petscstack->currentsize] = PETSC_TRUE; petscstack
->currentsize++; } if (petscstack) { petscstack->hotdepth
+= (PETSC_FALSE || petscstack->hotdepth); } ; } while (0)
; ; } while (0);
185 ierr = ISColoringGetIS(iscoloring,PETSC_OWN_POINTER,PETSC_IGNORE((void*)0),&c->isa);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),185,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
186
187 ierr = MatGetBlockSize(mat,&bs);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),187,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
188 ierr = PetscObjectTypeCompare((PetscObject)mat,MATSEQBAIJ"seqbaij",&isBAIJ);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),188,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
189 ierr = PetscObjectTypeCompare((PetscObject)mat,MATSEQSELL"seqsell",&isSELL);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),189,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
190 if (isBAIJ) {
2
←
Assuming 'isBAIJ' is 0
→
3
←
Taking false branch
→
191 Mat_SeqBAIJ *spA = (Mat_SeqBAIJ*)mat->data;
192 A_val = spA->a;
193 nz = spA->nz;
194 } else if (isSELL) {
4
←
Assuming 'isSELL' is 0
→
5
←
Taking false branch
→
195 Mat_SeqSELL *spA = (Mat_SeqSELL*)mat->data;
196 A_val = spA->val;
197 nz = spA->nz;
198 bs = 1; /* only bs=1 is supported for SeqSELL matrix */
199 } else {
200 Mat_SeqAIJ *spA = (Mat_SeqAIJ*)mat->data;
201 A_val = spA->a;
202 nz = spA->nz;
203 bs = 1; /* only bs=1 is supported for SeqAIJ matrix */
204 }
205
206 ierr = PetscMalloc2(nis,&c->ncolumns,nis,&c->columns)PetscMallocA(2,PETSC_FALSE,206,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,(size_t)(nis)*sizeof(**(&c->ncolumns)),(&c->ncolumns
),(size_t)(nis)*sizeof(**(&c->columns)),(&c->columns
));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),206,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
207 ierr = PetscMalloc1(nis,&c->nrows)PetscMallocA(1,PETSC_FALSE,207,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,(size_t)(nis)*sizeof(**(&c->nrows)),(&c->nrows
));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),207,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0); /* nrows is freeed seperately from ncolumns and columns */
208 ierr = PetscLogObjectMemory((PetscObject)c,3*nis*sizeof(PetscInt));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),208,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
209
210 if (c->htype[0] == 'd') {
6
←
Assuming the condition is false
→
7
←
Taking false branch
→
211 ierr = PetscMalloc1(nz,&Jentry)PetscMallocA(1,PETSC_FALSE,211,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,(size_t)(nz)*sizeof(**(&Jentry)),(&Jentry));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),211,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
212 ierr = PetscLogObjectMemory((PetscObject)c,nz*sizeof(MatEntry));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),212,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
213 c->matentry = Jentry;
214 } else if (c->htype[0] == 'w') {
8
←
Assuming the condition is true
→
9
←
Taking true branch
→
215 ierr = PetscMalloc1(nz,&Jentry2)PetscMallocA(1,PETSC_FALSE,215,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,(size_t)(nz)*sizeof(**(&Jentry2)),(&Jentry2));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),215,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
216 ierr = PetscLogObjectMemory((PetscObject)c,nz*sizeof(MatEntry2));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),216,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
217 c->matentry2 = Jentry2;
218 } else SETERRQ(PetscObjectComm((PetscObject)mat),PETSC_ERR_SUP,"htype is not supported")return PetscError(PetscObjectComm((PetscObject)mat),218,__func__
,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c",
56,PETSC_ERROR_INITIAL,"htype is not supported");
219
220 if (isBAIJ) {
10
←
Taking false branch
→
221 ierr = MatGetColumnIJ_SeqBAIJ_Color(mat,0,PETSC_FALSE,PETSC_FALSE,&ncols,&ci,&cj,&spidx,NULL((void*)0));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),221,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
222 } else if (isSELL) {
11
←
Taking false branch
→
223 ierr = MatGetColumnIJ_SeqSELL_Color(mat,0,PETSC_FALSE,PETSC_FALSE,&ncols,&ci,&cj,&spidx,NULL((void*)0));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),223,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
224 } else {
225 ierr = MatGetColumnIJ_SeqAIJ_Color(mat,0,PETSC_FALSE,PETSC_FALSE,&ncols,&ci,&cj,&spidx,NULL((void*)0));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),225,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
226 }
227
228 ierr = PetscCalloc1(c->m,&rowhit)PetscMallocA(1,PETSC_TRUE,228,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,(size_t)(c->m)*sizeof(**(&rowhit)),(&rowhit));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),228,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
229 ierr = PetscMalloc1(c->m,&valaddrhit)PetscMallocA(1,PETSC_FALSE,229,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,(size_t)(c->m)*sizeof(**(&valaddrhit)),(&valaddrhit
));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),229,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
230
231 nz = 0;
232 for (i=0; i<nis; i++) { /* loop over colors */
12
←
Assuming 'i' is < 'nis'
→
13
←
Loop condition is true. Entering loop body
→
233 ierr = ISGetLocalSize(c->isa[i],&n);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),233,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
234 ierr = ISGetIndices(c->isa[i],&is);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),234,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
235
236 c->ncolumns[i] = n;
237 c->columns[i] = (PetscInt*)is;
238 /* note: we know that c->isa is going to be around as long at the c->columns values */
239 ierr = ISRestoreIndices(c->isa[i],&is);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),239,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
240
241 /* fast, crude version requires O(N*N) work */
242 bs2 = bs*bs;
243 nrows = 0;
244 for (j=0; j<n; j++) { /* loop over columns */
14
←
Assuming 'j' is >= 'n'
→
15
←
Loop condition is false. Execution continues on line 255
→
245 col = is[j];
246 tmp = ci[col];
247 row = cj + tmp;
248 m = ci[col+1] - tmp;
249 nrows += m;
250 for (k=0; k<m; k++) { /* loop over columns marking them in rowhit */
251 rowhit[*row] = col + 1;
252 valaddrhit[*row++] = (PetscScalar*)&A_val[bs2*spidx[tmp + k]];
253 }
254 }
255 c->nrows[i] = nrows; /* total num of rows for this color */
256
257 if (c->htype[0] == 'd') {
16
←
Assuming the condition is true
→
17
←
Taking true branch
→
258 for (j=0; j<mbs; j++) { /* loop over rows */
18
←
Assuming 'j' is < 'mbs'
→
19
←
Loop condition is true. Entering loop body
→
259 if (rowhit[j]) {
20
←
Assuming the condition is true
→
21
←
Taking true branch
→
260 Jentry[nz].row = j; /* local row index */
22
←
Dereference of undefined pointer value
261 Jentry[nz].col = rowhit[j] - 1; /* local column index */
262 Jentry[nz].valaddr = valaddrhit[j]; /* address of mat value for this entry */
263 nz++;
264 rowhit[j] = 0.0; /* zero rowhit for reuse */
265 }
266 }
267 } else { /* c->htype == 'wp' */
268 for (j=0; j<mbs; j++) { /* loop over rows */
269 if (rowhit[j]) {
270 Jentry2[nz].row = j; /* local row index */
271 Jentry2[nz].valaddr = valaddrhit[j]; /* address of mat value for this entry */
272 nz++;
273 rowhit[j] = 0.0; /* zero rowhit for reuse */
274 }
275 }
276 }
277 }
278
279 if (c->bcols > 1) { /* reorder Jentry for faster MatFDColoringApply() */
280 ierr = MatFDColoringSetUpBlocked_AIJ_Private(mat,c,nz);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),280,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
281 }
282
283 if (isBAIJ) {
284 ierr = MatRestoreColumnIJ_SeqBAIJ_Color(mat,0,PETSC_FALSE,PETSC_FALSE,&ncols,&ci,&cj,&spidx,NULL((void*)0));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),284,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
285 ierr = PetscMalloc1(bs*mat->rmap->n,&c->dy)PetscMallocA(1,PETSC_FALSE,285,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,(size_t)(bs*mat->rmap->n)*sizeof(**(&c->dy)),(&
c->dy));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),285,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
286 ierr = PetscLogObjectMemory((PetscObject)c,bs*mat->rmap->n*sizeof(PetscScalar));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),286,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
287 } else if (isSELL) {
288 ierr = MatRestoreColumnIJ_SeqSELL_Color(mat,0,PETSC_FALSE,PETSC_FALSE,&ncols,&ci,&cj,&spidx,NULL((void*)0));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),288,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
289 } else {
290 ierr = MatRestoreColumnIJ_SeqAIJ_Color(mat,0,PETSC_FALSE,PETSC_FALSE,&ncols,&ci,&cj,&spidx,NULL((void*)0));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),290,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
291 }
292 ierr = PetscFree(rowhit)((*PetscTrFree)((void*)(rowhit),292,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
) || ((rowhit) = 0,0));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),292,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
293 ierr = PetscFree(valaddrhit)((*PetscTrFree)((void*)(valaddrhit),293,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
) || ((valaddrhit) = 0,0));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),293,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
294 ierr = ISColoringRestoreIS(iscoloring,PETSC_OWN_POINTER,&c->isa);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),294,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
295
296 ierr = VecCreateGhost(PetscObjectComm((PetscObject)mat),mat->rmap->n,PETSC_DETERMINE-1,0,NULL((void*)0),&c->vscale);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),296,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
297 ierr = PetscInfo3(c,"ncolors %D, brows %D and bcols %D are used.\n",c->ncolors,c->brows,c->bcols)PetscInfo_Private(__func__,c,"ncolors %D, brows %D and bcols %D are used.\n"
,c->ncolors,c->brows,c->bcols);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),297,__func__,"/sandbox/petsc/petsc.master/src/mat/impls/aij/seq/fdaij.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
298 PetscFunctionReturn(0)do { do { ; if (petscstack && petscstack->currentsize
> 0) { petscstack->currentsize--; petscstack->function
[petscstack->currentsize] = 0; petscstack->file[petscstack
->currentsize] = 0; petscstack->line[petscstack->currentsize
] = 0; petscstack->petscroutine[petscstack->currentsize
] = PETSC_FALSE; } if (petscstack) { petscstack->hotdepth =
(((petscstack->hotdepth-1)<(0)) ? (0) : (petscstack->
hotdepth-1)); } ; } while (0); return(0);} while (0);
299}