Bug Summary

File:ksp/pc/impls/telescope/telescope_coarsedm.c
Warning:line 285, column 89
Array access (from variable 'sub_vecs') results in a null pointer dereference

Annotated Source Code

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1
2#include <petsc/private/matimpl.h>
3#include <petsc/private/pcimpl.h>
4#include <petsc/private/dmimpl.h>
5#include <petscksp.h> /*I "petscksp.h" I*/
6#include <petscdm.h>
7#include <petscdmda.h>
8#include <petscdmshell.h>
9
10#include "../src/ksp/pc/impls/telescope/telescope.h"
11
12static PetscBool cited = PETSC_FALSE;
13static const char citation[] =
14"@inproceedings{MaySananRuppKnepleySmith2016,\n"
15" title = {Extreme-Scale Multigrid Components within PETSc},\n"
16" author = {Dave A. May and Patrick Sanan and Karl Rupp and Matthew G. Knepley and Barry F. Smith},\n"
17" booktitle = {Proceedings of the Platform for Advanced Scientific Computing Conference},\n"
18" series = {PASC '16},\n"
19" isbn = {978-1-4503-4126-4},\n"
20" location = {Lausanne, Switzerland},\n"
21" pages = {5:1--5:12},\n"
22" articleno = {5},\n"
23" numpages = {12},\n"
24" url = {https://doi.acm.org/10.1145/2929908.2929913},\n"
25" doi = {10.1145/2929908.2929913},\n"
26" acmid = {2929913},\n"
27" publisher = {ACM},\n"
28" address = {New York, NY, USA},\n"
29" keywords = {GPU, HPC, agglomeration, coarse-level solver, multigrid, parallel computing, preconditioning},\n"
30" year = {2016}\n"
31"}\n";
32
33typedef struct {
34 DM dm_fine,dm_coarse; /* these DM's should be topologically identical but use different communicators */
35 Mat permutation;
36 Vec xp;
37 PetscErrorCode (*fp_dm_field_scatter)(DM,Vec,ScatterMode,DM,Vec);
38 PetscErrorCode (*fp_dm_state_scatter)(DM,ScatterMode,DM);
39 void *dmksp_context_determined;
40 void *dmksp_context_user;
41} PC_Telescope_CoarseDMCtx;
42
43
44PetscErrorCode PCTelescopeSetUp_scatters_CoarseDM(PC pc,PC_Telescope sred,PC_Telescope_CoarseDMCtx *ctx)
45{
46 PetscErrorCode ierr;
47 Vec xred,yred,xtmp,x,xp;
48 VecScatter scatter;
49 IS isin;
50 Mat B;
51 PetscInt m,bs,st,ed;
52 MPI_Comm comm;
53
54 PetscFunctionBegindo { do { ; if (petscstack && (petscstack->currentsize
< 64)) { petscstack->function[petscstack->currentsize
] = __func__; petscstack->file[petscstack->currentsize]
= "/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
; petscstack->line[petscstack->currentsize] = 54; petscstack
->petscroutine[petscstack->currentsize] = PETSC_TRUE; petscstack
->currentsize++; } if (petscstack) { petscstack->hotdepth
+= (PETSC_FALSE || petscstack->hotdepth); } ; } while (0)
; ; } while (0);
55 ierr = PetscObjectGetComm((PetscObject)pc,&comm);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),55,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
56 ierr = PCGetOperators(pc,NULL((void*)0),&B);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),56,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
57 ierr = MatCreateVecs(B,&x,NULL((void*)0));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),57,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
58 ierr = MatGetBlockSize(B,&bs);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),58,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
59 ierr = VecDuplicate(x,&xp);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),59,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
60 m = 0;
61 xred = NULL((void*)0);
62 yred = NULL((void*)0);
63 if (PCTelescope_isActiveRank(sred)) {
64 ierr = DMCreateGlobalVector(ctx->dm_coarse,&xred);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),64,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
65 ierr = VecDuplicate(xred,&yred);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),65,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
66 ierr = VecGetOwnershipRange(xred,&st,&ed);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),66,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
67 ierr = ISCreateStride(comm,ed-st,st,1,&isin);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),67,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
68 ierr = VecGetLocalSize(xred,&m);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),68,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
69 } else {
70 ierr = VecGetOwnershipRange(x,&st,&ed);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),70,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
71 ierr = ISCreateStride(comm,0,st,1,&isin);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),71,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
72 }
73 ierr = ISSetBlockSize(isin,bs);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),73,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
74 ierr = VecCreate(comm,&xtmp);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),74,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
75 ierr = VecSetSizes(xtmp,m,PETSC_DECIDE-1);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),75,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
76 ierr = VecSetBlockSize(xtmp,bs);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),76,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
77 ierr = VecSetType(xtmp,((PetscObject)x)->type_name);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),77,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
78 ierr = VecScatterCreate(x,isin,xtmp,NULL((void*)0),&scatter);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),78,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
79 sred->xred = xred;
80 sred->yred = yred;
81 sred->isin = isin;
82 sred->scatter = scatter;
83 sred->xtmp = xtmp;
84 ctx->xp = xp;
85 ierr = VecDestroy(&x);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),85,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
86 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);
87}
88
89PetscErrorCode PCTelescopeSetUp_CoarseDM(PC pc,PC_Telescope sred)
90{
91 PC_Telescope_CoarseDMCtx *ctx;
92 DM dm,dm_coarse = NULL((void*)0);
93 MPI_Comm comm;
94 PetscBool has_perm,has_kspcomputeoperators,using_kspcomputeoperators;
95 PetscErrorCode ierr;
96
97 PetscFunctionBegindo { do { ; if (petscstack && (petscstack->currentsize
< 64)) { petscstack->function[petscstack->currentsize
] = __func__; petscstack->file[petscstack->currentsize]
= "/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
; petscstack->line[petscstack->currentsize] = 97; petscstack
->petscroutine[petscstack->currentsize] = PETSC_TRUE; petscstack
->currentsize++; } if (petscstack) { petscstack->hotdepth
+= (PETSC_FALSE || petscstack->hotdepth); } ; } while (0)
; ; } while (0);
98 ierr = PetscInfo(pc,"PCTelescope: setup (CoarseDM)\n")PetscInfo_Private(__func__,pc,"PCTelescope: setup (CoarseDM)\n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),98,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
99 ierr = PetscNew(&ctx)PetscMallocA(1,PETSC_TRUE,99,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,(size_t)(1)*sizeof(**((&ctx))),((&ctx)));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),99,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
100 sred->dm_ctx = (void*)ctx;
101
102 ierr = PetscObjectGetComm((PetscObject)pc,&comm);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),102,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
103 ierr = PCGetDM(pc,&dm);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),103,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
104 ierr = DMGetCoarseDM(dm,&dm_coarse);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),104,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
105 ctx->dm_fine = dm;
106 ctx->dm_coarse = dm_coarse;
107
108 /* attach coarse dm to ksp on sub communicator */
109 if (PCTelescope_isActiveRank(sred)) {
110 ierr = KSPSetDM(sred->ksp,ctx->dm_coarse);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),110,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
111 if (sred->ignore_kspcomputeoperators) {
112 ierr = KSPSetDMActive(sred->ksp,PETSC_FALSE);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),112,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
113 }
114 }
115
116 /* check if there is a method to provide a permutation */
117 has_perm = PETSC_FALSE;
118 has_kspcomputeoperators = PETSC_FALSE;
119 using_kspcomputeoperators = PETSC_FALSE;
120
121 /* if no permutation is provided, we must rely on KSPSetComputeOperators */
122 {
123 PetscErrorCode (*dmfine_kspfunc)(KSP,Mat,Mat,void*) = NULL((void*)0);
124 void *dmfine_kspctx = NULL((void*)0),*dmcoarse_kspctx = NULL((void*)0);
125 void *dmfine_appctx = NULL((void*)0),*dmcoarse_appctx = NULL((void*)0);
126 void *dmfine_shellctx = NULL((void*)0),*dmcoarse_shellctx = NULL((void*)0);
127
128 ierr = DMKSPGetComputeOperators(dm,&dmfine_kspfunc,&dmfine_kspctx);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),128,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
129 if (dmfine_kspfunc) { has_kspcomputeoperators = PETSC_TRUE; }
130
131 ierr = DMGetApplicationContext(ctx->dm_fine,&dmfine_appctx);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),131,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
132 ierr = DMShellGetContext(ctx->dm_fine,&dmfine_shellctx);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),132,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
133
134 /* need to define dmcoarse_kspctx */
135 if (dmfine_kspfunc && !sred->ignore_kspcomputeoperators) {
136
137 ierr = PetscInfo(pc,"PCTelescope: KSPSetComputeOperators fetched from parent DM\n")PetscInfo_Private(__func__,pc,"PCTelescope: KSPSetComputeOperators fetched from parent DM\n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),137,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
138 if (PCTelescope_isActiveRank(sred)) {
139 ierr = DMGetApplicationContext(ctx->dm_coarse,&dmcoarse_appctx);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),139,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
140 ierr = DMShellGetContext(ctx->dm_coarse,&dmcoarse_shellctx);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),140,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
141 }
142
143 /* Assume that if the fine operator didn't require any context, neither will the coarse */
144 if (!dmfine_kspctx) {
145 dmcoarse_kspctx = NULL((void*)0);
146 ierr = PetscInfo(pc,"PCTelescope: KSPSetComputeOperators using NULL context\n")PetscInfo_Private(__func__,pc,"PCTelescope: KSPSetComputeOperators using NULL context\n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),146,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
147 } else {
148
149 ierr = PetscInfo(pc,"PCTelescope: KSPSetComputeOperators detected non-NULL context from parent DM \n")PetscInfo_Private(__func__,pc,"PCTelescope: KSPSetComputeOperators detected non-NULL context from parent DM \n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),149,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
150 if (PCTelescope_isActiveRank(sred)) {
151
152 if (dmfine_kspctx == dmfine_appctx) {
153 dmcoarse_kspctx = dmcoarse_appctx;
154 ierr = PetscInfo(pc,"PCTelescope: KSPSetComputeOperators using context from DM->ApplicationContext\n")PetscInfo_Private(__func__,pc,"PCTelescope: KSPSetComputeOperators using context from DM->ApplicationContext\n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),154,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
155 if (!dmcoarse_kspctx) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Non NULL dmfine->kspctx == dmfine->appctx. NULL dmcoarse->appctx found. Likely this is an error")return PetscError(((MPI_Comm)0x44000001),155,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,83,PETSC_ERROR_INITIAL,"Non NULL dmfine->kspctx == dmfine->appctx. NULL dmcoarse->appctx found. Likely this is an error"
);
156 } else if (dmfine_kspctx == dmfine_shellctx) {
157 dmcoarse_kspctx = dmcoarse_shellctx;
158 ierr = PetscInfo(pc,"PCTelescope: KSPSetComputeOperators using context from DMShell->Context\n")PetscInfo_Private(__func__,pc,"PCTelescope: KSPSetComputeOperators using context from DMShell->Context\n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),158,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
159 if (!dmcoarse_kspctx) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Non NULL dmfine->kspctx == dmfine.shell->ctx. NULL dmcoarse.shell->ctx found. Likely this is an error")return PetscError(((MPI_Comm)0x44000001),159,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,83,PETSC_ERROR_INITIAL,"Non NULL dmfine->kspctx == dmfine.shell->ctx. NULL dmcoarse.shell->ctx found. Likely this is an error"
);
160 }
161 ctx->dmksp_context_determined = dmcoarse_kspctx;
162
163 /* look for user provided method to fetch the context */
164 {
165 PetscErrorCode (*fp_get_coarsedm_context)(DM,void**) = NULL((void*)0);
166 void *dmcoarse_context_user = NULL((void*)0);
167 char dmcoarse_method[PETSC_MAX_PATH_LEN4096];
168
169 ierr = PetscSNPrintf(dmcoarse_method,sizeof(dmcoarse_method),"PCTelescopeGetCoarseDMKSPContext");CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),169,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
170 ierr = PetscObjectQueryFunction((PetscObject)ctx->dm_coarse,dmcoarse_method,&fp_get_coarsedm_context)PetscObjectQueryFunction_Private(((PetscObject)ctx->dm_coarse
),(dmcoarse_method),(PetscVoidFunction*)(&fp_get_coarsedm_context
));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),170,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
171 if (fp_get_coarsedm_context) {
172 ierr = PetscInfo(pc,"PCTelescope: Found composed method PCTelescopeGetCoarseDMKSPContext from coarse DM\n")PetscInfo_Private(__func__,pc,"PCTelescope: Found composed method PCTelescopeGetCoarseDMKSPContext from coarse DM\n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),172,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
173 ierr = fp_get_coarsedm_context(ctx->dm_coarse,&dmcoarse_context_user);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),173,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
174 ctx->dmksp_context_user = dmcoarse_context_user;
175 dmcoarse_kspctx = dmcoarse_context_user;
176 } else {
177 ierr = PetscInfo(pc,"PCTelescope: Failed to find composed method PCTelescopeGetCoarseDMKSPContext from coarse DM\n")PetscInfo_Private(__func__,pc,"PCTelescope: Failed to find composed method PCTelescopeGetCoarseDMKSPContext from coarse DM\n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),177,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
178 }
179 }
180
181 if (!dmcoarse_kspctx) {
182 ierr = PetscInfo(pc,"PCTelescope: KSPSetComputeOperators failed to determine the context to use on sub-communicator\n")PetscInfo_Private(__func__,pc,"PCTelescope: KSPSetComputeOperators failed to determine the context to use on sub-communicator\n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),182,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
183 SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Cannot determine which context with use for KSPSetComputeOperators() on sub-communicator")return PetscError(((MPI_Comm)0x44000001),183,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,83,PETSC_ERROR_INITIAL,"Cannot determine which context with use for KSPSetComputeOperators() on sub-communicator"
);
184 }
185 }
186 }
187 }
188
189 if (dmfine_kspfunc && !sred->ignore_kspcomputeoperators) {
190 using_kspcomputeoperators = PETSC_TRUE;
191
192 if (PCTelescope_isActiveRank(sred)) {
193 /* sub ksp inherits dmksp_func and context provided by user */
194 ierr = KSPSetComputeOperators(sred->ksp,dmfine_kspfunc,dmcoarse_kspctx);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),194,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
195 /*ierr = PetscObjectCopyFortranFunctionPointers((PetscObject)dm,(PetscObject)ctx->dmrepart);CHKERRQ(ierr);*/
196 ierr = KSPSetDMActive(sred->ksp,PETSC_TRUE);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),196,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
197 }
198 }
199 }
200
201 if (!has_perm && has_kspcomputeoperators && !using_kspcomputeoperators) SETERRQ(comm,PETSC_ERR_SUP,"No method to permute an operator was found on the parent DM. A method for KSPSetComputeOperators() was provided but it was requested to be ignored. Telescope setup cannot proceed")return PetscError(comm,201,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,56,PETSC_ERROR_INITIAL,"No method to permute an operator was found on the parent DM. A method for KSPSetComputeOperators() was provided but it was requested to be ignored. Telescope setup cannot proceed"
);
202 if (!has_perm && !has_kspcomputeoperators) SETERRQ(comm,PETSC_ERR_SUP,"No method to permute an operator was found on the parent DM. No method for KSPSetComputeOperators() was provided. Telescope setup cannot proceed")return PetscError(comm,202,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,56,PETSC_ERROR_INITIAL,"No method to permute an operator was found on the parent DM. No method for KSPSetComputeOperators() was provided. Telescope setup cannot proceed"
);
203
204 {
205 char dmfine_method[PETSC_MAX_PATH_LEN4096];
206
207 ierr = PetscSNPrintf(dmfine_method,sizeof(dmfine_method),"PCTelescopeFieldScatter");CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),207,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
208 ierr = PetscObjectQueryFunction((PetscObject)ctx->dm_fine,dmfine_method,&ctx->fp_dm_field_scatter)PetscObjectQueryFunction_Private(((PetscObject)ctx->dm_fine
),(dmfine_method),(PetscVoidFunction*)(&ctx->fp_dm_field_scatter
));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),208,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
209
210 ierr = PetscSNPrintf(dmfine_method,sizeof(dmfine_method),"PCTelescopeStateScatter");CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),210,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
211 ierr = PetscObjectQueryFunction((PetscObject)ctx->dm_fine,dmfine_method,&ctx->fp_dm_state_scatter)PetscObjectQueryFunction_Private(((PetscObject)ctx->dm_fine
),(dmfine_method),(PetscVoidFunction*)(&ctx->fp_dm_state_scatter
));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),211,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
212 }
213
214 if (ctx->fp_dm_state_scatter) {
215 ierr = PetscInfo(pc,"PCTelescope: Found composed method PCTelescopeStateScatter from parent DM\n")PetscInfo_Private(__func__,pc,"PCTelescope: Found composed method PCTelescopeStateScatter from parent DM\n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),215,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
216 } else {
217 ierr = PetscInfo(pc,"PCTelescope: Failed to find composed method PCTelescopeStateScatter from parent DM\n")PetscInfo_Private(__func__,pc,"PCTelescope: Failed to find composed method PCTelescopeStateScatter from parent DM\n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),217,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
218 }
219
220 if (ctx->fp_dm_field_scatter) {
221 ierr = PetscInfo(pc,"PCTelescope: Found composed method PCTelescopeFieldScatter from parent DM\n")PetscInfo_Private(__func__,pc,"PCTelescope: Found composed method PCTelescopeFieldScatter from parent DM\n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),221,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
222 } else {
223 ierr = PetscInfo(pc,"PCTelescope: Failed to find composed method PCTelescopeFieldScatter from parent DM\n")PetscInfo_Private(__func__,pc,"PCTelescope: Failed to find composed method PCTelescopeFieldScatter from parent DM\n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),223,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
224 SETERRQ(comm,PETSC_ERR_SUP,"No method to scatter fields between the parent DM and coarse DM was found. Must call PetscObjectComposeFunction() with the parent DM. Telescope setup cannot proceed")return PetscError(comm,224,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,56,PETSC_ERROR_INITIAL,"No method to scatter fields between the parent DM and coarse DM was found. Must call PetscObjectComposeFunction() with the parent DM. Telescope setup cannot proceed"
);
225 }
226
227 /*ierr = PCTelescopeSetUp_permutation_CoarseDM(pc,sred,ctx);CHKERRQ(ierr);*/
228 ierr = PCTelescopeSetUp_scatters_CoarseDM(pc,sred,ctx);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),228,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
229 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);
230}
231
232PetscErrorCode PCApply_Telescope_CoarseDM(PC pc,Vec x,Vec y)
233{
234 PC_Telescope sred = (PC_Telescope)pc->data;
235 PetscErrorCode ierr;
236 Vec xred,yred;
237 PC_Telescope_CoarseDMCtx *ctx;
238
239 PetscFunctionBegindo { do { ; if (petscstack && (petscstack->currentsize
< 64)) { petscstack->function[petscstack->currentsize
] = __func__; petscstack->file[petscstack->currentsize]
= "/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
; petscstack->line[petscstack->currentsize] = 239; petscstack
->petscroutine[petscstack->currentsize] = PETSC_TRUE; petscstack
->currentsize++; } if (petscstack) { petscstack->hotdepth
+= (PETSC_FALSE || petscstack->hotdepth); } ; } while (0)
; ; } while (0);
240 ctx = (PC_Telescope_CoarseDMCtx*)sred->dm_ctx;
241 xred = sred->xred;
242 yred = sred->yred;
243
244 ierr = PetscCitationsRegister(citation,&cited);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),244,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
245
246 if (ctx->fp_dm_state_scatter) {
247 ierr = ctx->fp_dm_state_scatter(ctx->dm_fine,SCATTER_FORWARD,ctx->dm_coarse);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),247,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
248 }
249
250 ierr = ctx->fp_dm_field_scatter(ctx->dm_fine,x,SCATTER_FORWARD,ctx->dm_coarse,xred);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),250,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
251
252 /* solve */
253 if (PCTelescope_isActiveRank(sred)) {
254 ierr = KSPSolve(sred->ksp,xred,yred);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),254,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
255 }
256
257 ierr = ctx->fp_dm_field_scatter(ctx->dm_fine,y,SCATTER_REVERSE,ctx->dm_coarse,yred);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),257,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
258 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);
259}
260
261PetscErrorCode PCTelescopeSubNullSpaceCreate_CoarseDM(PC pc,PC_Telescope sred,MatNullSpace nullspace,MatNullSpace *sub_nullspace)
262{
263 PetscErrorCode ierr;
264 PetscBool has_const;
265 PetscInt k,n = 0;
266 const Vec *vecs;
267 Vec *sub_vecs = NULL((void*)0);
6
←
'sub_vecs' initialized to a null pointer value
→
268 MPI_Comm subcomm;
269 PC_Telescope_CoarseDMCtx *ctx;
270
271 PetscFunctionBegindo { do { ; if (petscstack && (petscstack->currentsize
< 64)) { petscstack->function[petscstack->currentsize
] = __func__; petscstack->file[petscstack->currentsize]
= "/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
; petscstack->line[petscstack->currentsize] = 271; petscstack
->petscroutine[petscstack->currentsize] = PETSC_TRUE; petscstack
->currentsize++; } if (petscstack) { petscstack->hotdepth
+= (PETSC_FALSE || petscstack->hotdepth); } ; } while (0)
; ; } while (0);
272 ctx = (PC_Telescope_CoarseDMCtx*)sred->dm_ctx;
273 subcomm = sred->subcomm;
274 ierr = MatNullSpaceGetVecs(nullspace,&has_const,&n,&vecs);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),274,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
275
276 if (PCTelescope_isActiveRank(sred)) {
7
←
Taking false branch
→
277 /* create new vectors */
278 if (n) {
279 ierr = VecDuplicateVecs(sred->xred,n,&sub_vecs);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),279,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
280 }
281 }
282
283 /* copy entries */
284 for (k=0; k<n; k++) {
8
←
Assuming 'k' is < 'n'
→
9
←
Loop condition is true. Entering loop body
→
285 ierr = ctx->fp_dm_field_scatter(ctx->dm_fine,vecs[k],SCATTER_FORWARD,ctx->dm_coarse,sub_vecs[k]);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),285,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
10
←
Array access (from variable 'sub_vecs') results in a null pointer dereference
286 }
287
288 if (PCTelescope_isActiveRank(sred)) {
289 /* create new (near) nullspace for redundant object */
290 ierr = MatNullSpaceCreate(subcomm,has_const,n,sub_vecs,sub_nullspace);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),290,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
291 ierr = VecDestroyVecs(n,&sub_vecs);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),291,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
292 }
293 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);
294}
295
296PetscErrorCode PCTelescopeMatNullSpaceCreate_CoarseDM(PC pc,PC_Telescope sred,Mat sub_mat)
297{
298 PetscErrorCode ierr;
299 Mat B;
300 PC_Telescope_CoarseDMCtx *ctx;
301
302 PetscFunctionBegindo { do { ; if (petscstack && (petscstack->currentsize
< 64)) { petscstack->function[petscstack->currentsize
] = __func__; petscstack->file[petscstack->currentsize]
= "/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
; petscstack->line[petscstack->currentsize] = 302; petscstack
->petscroutine[petscstack->currentsize] = PETSC_TRUE; petscstack
->currentsize++; } if (petscstack) { petscstack->hotdepth
+= (PETSC_FALSE || petscstack->hotdepth); } ; } while (0)
; ; } while (0);
303 ctx = (PC_Telescope_CoarseDMCtx*)sred->dm_ctx;
304 ierr = PCGetOperators(pc,NULL((void*)0),&B);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),304,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
305 {
306 MatNullSpace nullspace,sub_nullspace;
307 ierr = MatGetNullSpace(B,&nullspace);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),307,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
308 if (nullspace) {
1
Assuming 'nullspace' is null
→
2
←
Taking false branch
→
309 ierr = PetscInfo(pc,"PCTelescope: generating nullspace (CoarseDM)\n")PetscInfo_Private(__func__,pc,"PCTelescope: generating nullspace (CoarseDM)\n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),309,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
310 ierr = PCTelescopeSubNullSpaceCreate_CoarseDM(pc,sred,nullspace,&sub_nullspace);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),310,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
311
312 /* attach any user nullspace removal methods and contexts */
313 if (PCTelescope_isActiveRank(sred)) {
314 void *context = NULL((void*)0);
315 if (nullspace->remove && !nullspace->rmctx){
316 ierr = MatNullSpaceSetFunction(sub_nullspace,nullspace->remove,context);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),316,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
317 } else if (nullspace->remove && nullspace->rmctx) {
318 char dmcoarse_method[PETSC_MAX_PATH_LEN4096];
319 PetscErrorCode (*fp_get_coarsedm_context)(DM,void**) = NULL((void*)0);
320
321 ierr = PetscSNPrintf(dmcoarse_method,sizeof(dmcoarse_method),"PCTelescopeGetCoarseDMNullSpaceUserContext");CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),321,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
322 ierr = PetscObjectQueryFunction((PetscObject)ctx->dm_coarse,dmcoarse_method,&fp_get_coarsedm_context)PetscObjectQueryFunction_Private(((PetscObject)ctx->dm_coarse
),(dmcoarse_method),(PetscVoidFunction*)(&fp_get_coarsedm_context
));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),322,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
323 if (!context) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_SUP,"Propagation of user null-space removal method with non-NULL context requires the coarse DM be composed with a function named \"%s\"",dmcoarse_method)return PetscError(((MPI_Comm)0x44000001),323,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,56,PETSC_ERROR_INITIAL,"Propagation of user null-space removal method with non-NULL context requires the coarse DM be composed with a function named \"%s\""
,dmcoarse_method);
324 ierr = MatNullSpaceSetFunction(sub_nullspace,nullspace->remove,context);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),324,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
325 }
326 }
327
328 if (PCTelescope_isActiveRank(sred)) {
329 ierr = MatSetNullSpace(sub_mat,sub_nullspace);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),329,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
330 ierr = MatNullSpaceDestroy(&sub_nullspace);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),330,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
331 }
332 }
333 }
334 {
335 MatNullSpace nearnullspace,sub_nearnullspace;
336 ierr = MatGetNearNullSpace(B,&nearnullspace);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),336,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
337 if (nearnullspace) {
3
←
Assuming 'nearnullspace' is non-null
→
4
←
Taking true branch
→
338 ierr = PetscInfo(pc,"PCTelescope: generating near nullspace (CoarseDM)\n")PetscInfo_Private(__func__,pc,"PCTelescope: generating near nullspace (CoarseDM)\n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),338,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
339 ierr = PCTelescopeSubNullSpaceCreate_CoarseDM(pc,sred,nearnullspace,&sub_nearnullspace);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),339,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
5
←
Calling 'PCTelescopeSubNullSpaceCreate_CoarseDM'
→
340
341 /* attach any user nullspace removal methods and contexts */
342 if (PCTelescope_isActiveRank(sred)) {
343 void *context = NULL((void*)0);
344 if (nearnullspace->remove && !nearnullspace->rmctx){
345 ierr = MatNullSpaceSetFunction(sub_nearnullspace,nearnullspace->remove,context);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),345,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
346 } else if (nearnullspace->remove && nearnullspace->rmctx) {
347 char dmcoarse_method[PETSC_MAX_PATH_LEN4096];
348 PetscErrorCode (*fp_get_coarsedm_context)(DM,void**) = NULL((void*)0);
349
350 ierr = PetscSNPrintf(dmcoarse_method,sizeof(dmcoarse_method),"PCTelescopeGetCoarseDMNearNullSpaceUserContext");CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),350,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
351 ierr = PetscObjectQueryFunction((PetscObject)ctx->dm_coarse,dmcoarse_method,&fp_get_coarsedm_context)PetscObjectQueryFunction_Private(((PetscObject)ctx->dm_coarse
),(dmcoarse_method),(PetscVoidFunction*)(&fp_get_coarsedm_context
));CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),351,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
352 if (!context) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_SUP,"Propagation of user near null-space removal method with non-NULL context requires the coarse DM be composed with a function named \"%s\"",dmcoarse_method)return PetscError(((MPI_Comm)0x44000001),352,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,56,PETSC_ERROR_INITIAL,"Propagation of user near null-space removal method with non-NULL context requires the coarse DM be composed with a function named \"%s\""
,dmcoarse_method);
353 ierr = MatNullSpaceSetFunction(sub_nearnullspace,nearnullspace->remove,context);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),353,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
354 }
355 }
356
357 if (PCTelescope_isActiveRank(sred)) {
358 ierr = MatSetNearNullSpace(sub_mat,sub_nearnullspace);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),358,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
359 ierr = MatNullSpaceDestroy(&sub_nearnullspace);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),359,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
360 }
361 }
362 }
363 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);
364}
365
366PetscErrorCode PCReset_Telescope_CoarseDM(PC pc)
367{
368 PetscErrorCode ierr;
369 PC_Telescope sred = (PC_Telescope)pc->data;
370 PC_Telescope_CoarseDMCtx *ctx;
371
372 PetscFunctionBegindo { do { ; if (petscstack && (petscstack->currentsize
< 64)) { petscstack->function[petscstack->currentsize
] = __func__; petscstack->file[petscstack->currentsize]
= "/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
; petscstack->line[petscstack->currentsize] = 372; petscstack
->petscroutine[petscstack->currentsize] = PETSC_TRUE; petscstack
->currentsize++; } if (petscstack) { petscstack->hotdepth
+= (PETSC_FALSE || petscstack->hotdepth); } ; } while (0)
; ; } while (0);
373 ctx = (PC_Telescope_CoarseDMCtx*)sred->dm_ctx;
374 ctx->dm_fine = NULL((void*)0); /* since I did not increment the ref counter we set these to NULL */
375 ctx->dm_coarse = NULL((void*)0); /* since I did not increment the ref counter we set these to NULL */
376 ctx->permutation = NULL((void*)0); /* this will be fetched from the dm so no need to call destroy */
377 ierr = VecDestroy(&ctx->xp);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),377,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
378 ctx->fp_dm_field_scatter = NULL((void*)0);
379 ctx->fp_dm_state_scatter = NULL((void*)0);
380 ctx->dmksp_context_determined = NULL((void*)0);
381 ctx->dmksp_context_user = NULL((void*)0);
382 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);
383}
384
385PetscErrorCode PCApplyRichardson_Telescope_CoarseDM(PC pc,Vec x,Vec y,Vec w,PetscReal rtol,PetscReal abstol,PetscReal dtol,PetscInt its,PetscBool zeroguess,PetscInt *outits,PCRichardsonConvergedReason *reason)
386{
387 PC_Telescope sred = (PC_Telescope)pc->data;
388 PetscErrorCode ierr;
389 Vec yred = NULL((void*)0);
390 PetscBool default_init_guess_value = PETSC_FALSE;
391 PC_Telescope_CoarseDMCtx *ctx;
392
393 PetscFunctionBegindo { do { ; if (petscstack && (petscstack->currentsize
< 64)) { petscstack->function[petscstack->currentsize
] = __func__; petscstack->file[petscstack->currentsize]
= "/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
; petscstack->line[petscstack->currentsize] = 393; petscstack
->petscroutine[petscstack->currentsize] = PETSC_TRUE; petscstack
->currentsize++; } if (petscstack) { petscstack->hotdepth
+= (PETSC_FALSE || petscstack->hotdepth); } ; } while (0)
; ; } while (0);
394 ctx = (PC_Telescope_CoarseDMCtx*)sred->dm_ctx;
395 yred = sred->yred;
396
397 if (its > 1) SETERRQ(PetscObjectComm((PetscObject)pc),PETSC_ERR_SUP,"PCApplyRichardson_Telescope_CoarseDM only supports max_it = 1")return PetscError(PetscObjectComm((PetscObject)pc),397,__func__
,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,56,PETSC_ERROR_INITIAL,"PCApplyRichardson_Telescope_CoarseDM only supports max_it = 1"
);
398 *reason = (PCRichardsonConvergedReason)0;
399
400 if (!zeroguess) {
401 ierr = PetscInfo(pc,"PCTelescopeCoarseDM: Scattering y for non-zero-initial guess\n")PetscInfo_Private(__func__,pc,"PCTelescopeCoarseDM: Scattering y for non-zero-initial guess\n"
);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),401,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
402
403 ierr = ctx->fp_dm_field_scatter(ctx->dm_fine,y,SCATTER_FORWARD,ctx->dm_coarse,yred);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),403,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
404 }
405
406 if (PCTelescope_isActiveRank(sred)) {
407 ierr = KSPGetInitialGuessNonzero(sred->ksp,&default_init_guess_value);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),407,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
408 if (!zeroguess) ierr = KSPSetInitialGuessNonzero(sred->ksp,PETSC_TRUE);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),408,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
409 }
410
411 ierr = PCApply_Telescope_CoarseDM(pc,x,y);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),411,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
412
413 if (PCTelescope_isActiveRank(sred)) {
414 ierr = KSPSetInitialGuessNonzero(sred->ksp,default_init_guess_value);CHKERRQ(ierr)do {if (__builtin_expect(!!(ierr),0)) return PetscError(((MPI_Comm
)0x44000001),414,__func__,"/sandbox/petsc/petsc.master/src/ksp/pc/impls/telescope/telescope_coarsedm.c"
,ierr,PETSC_ERROR_REPEAT," ");} while (0);
415 }
416
417 if (!*reason) *reason = PCRICHARDSON_CONVERGED_ITS;
418 *outits = 1;
419 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);
420}