| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | ||
| 3 | SLEPc - Scalable Library for Eigenvalue Problem Computations | ||
| 4 | Copyright (c) 2002-, Universitat Politecnica de Valencia, Spain | ||
| 5 | |||
| 6 | This file is part of SLEPc. | ||
| 7 | SLEPc is distributed under a 2-clause BSD license (see LICENSE). | ||
| 8 | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | ||
| 9 | */ | ||
| 10 | /* | ||
| 11 | The SVD routines related to various viewers | ||
| 12 | */ | ||
| 13 | |||
| 14 | #include <slepc/private/svdimpl.h> /*I "slepcsvd.h" I*/ | ||
| 15 | #include <petscdraw.h> | ||
| 16 | |||
| 17 | /*@ | ||
| 18 | SVDView - Prints the SVD data structure. | ||
| 19 | |||
| 20 | Collective | ||
| 21 | |||
| 22 | Input Parameters: | ||
| 23 | + svd - the singular value solver context | ||
| 24 | - viewer - optional visualization context | ||
| 25 | |||
| 26 | Options Database Key: | ||
| 27 | . -svd_view - Calls SVDView() at end of SVDSolve() | ||
| 28 | |||
| 29 | Note: | ||
| 30 | The available visualization contexts include | ||
| 31 | + PETSC_VIEWER_STDOUT_SELF - standard output (default) | ||
| 32 | - PETSC_VIEWER_STDOUT_WORLD - synchronized standard | ||
| 33 | output where only the first processor opens | ||
| 34 | the file. All other processors send their | ||
| 35 | data to the first processor to print. | ||
| 36 | |||
| 37 | The user can open an alternative visualization context with | ||
| 38 | PetscViewerASCIIOpen() - output to a specified file. | ||
| 39 | |||
| 40 | Level: beginner | ||
| 41 | |||
| 42 | .seealso: EPSView() | ||
| 43 | @*/ | ||
| 44 | 28 | PetscErrorCode SVDView(SVD svd,PetscViewer viewer) | |
| 45 | { | ||
| 46 | 28 | const char *type=NULL; | |
| 47 | 28 | PetscBool isascii,isshell,isexternal; | |
| 48 | |||
| 49 |
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28 | PetscFunctionBegin; |
| 50 |
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28 | PetscValidHeaderSpecific(svd,SVD_CLASSID,1); |
| 51 |
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28 | if (!viewer) PetscCall(PetscViewerASCIIGetStdout(PetscObjectComm((PetscObject)svd),&viewer)); |
| 52 |
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28 | PetscValidHeaderSpecific(viewer,PETSC_VIEWER_CLASSID,2); |
| 53 |
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28 | PetscCheckSameComm(svd,1,viewer,2); |
| 54 | |||
| 55 |
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28 | PetscCall(PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&isascii)); |
| 56 |
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28 | if (isascii) { |
| 57 |
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28 | PetscCall(PetscObjectPrintClassNamePrefixType((PetscObject)svd,viewer)); |
| 58 |
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28 | PetscCall(PetscViewerASCIIPushTab(viewer)); |
| 59 |
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28 | PetscTryTypeMethod(svd,view,viewer); |
| 60 |
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28 | PetscCall(PetscViewerASCIIPopTab(viewer)); |
| 61 |
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28 | if (svd->problem_type) { |
| 62 |
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28 | switch (svd->problem_type) { |
| 63 | 28 | case SVD_STANDARD: type = "(standard) singular value problem"; break; | |
| 64 | ✗ | case SVD_GENERALIZED: type = "generalized singular value problem"; break; | |
| 65 | ✗ | case SVD_HYPERBOLIC: type = "hyperbolic singular value problem"; break; | |
| 66 | } | ||
| 67 | } else type = "not yet set"; | ||
| 68 |
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28 | PetscCall(PetscViewerASCIIPrintf(viewer," problem type: %s\n",type)); |
| 69 |
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56 | PetscCall(PetscViewerASCIIPrintf(viewer," transpose mode: %s\n",svd->impltrans?"implicit":"explicit")); |
| 70 |
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28 | if (svd->which == SVD_LARGEST) PetscCall(PetscViewerASCIIPrintf(viewer," selected portion of the spectrum: largest\n")); |
| 71 | ✗ | else PetscCall(PetscViewerASCIIPrintf(viewer," selected portion of the spectrum: smallest\n")); | |
| 72 |
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28 | if (svd->stop==SVD_STOP_THRESHOLD) PetscCall(PetscViewerASCIIPrintf(viewer," computing singular values %s the threshold: %g%s\n",svd->which==SVD_LARGEST?"above":"below",(double)svd->thres,svd->threlative?" (relative)":"")); |
| 73 |
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28 | if (svd->nsv) PetscCall(PetscViewerASCIIPrintf(viewer," number of singular values (nsv): %" PetscInt_FMT "\n",svd->nsv)); |
| 74 |
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28 | PetscCall(PetscViewerASCIIPrintf(viewer," number of column vectors (ncv): %" PetscInt_FMT "\n",svd->ncv)); |
| 75 |
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28 | PetscCall(PetscViewerASCIIPrintf(viewer," maximum dimension of projected problem (mpd): %" PetscInt_FMT "\n",svd->mpd)); |
| 76 |
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28 | PetscCall(PetscViewerASCIIPrintf(viewer," maximum number of iterations: %" PetscInt_FMT "\n",svd->max_it)); |
| 77 |
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28 | PetscCall(PetscViewerASCIIPrintf(viewer," tolerance: %g\n",(double)svd->tol)); |
| 78 |
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28 | PetscCall(PetscViewerASCIIPrintf(viewer," convergence test: ")); |
| 79 |
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28 | PetscCall(PetscViewerASCIIUseTabs(viewer,PETSC_FALSE)); |
| 80 |
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28 | switch (svd->conv) { |
| 81 | ✗ | case SVD_CONV_ABS: | |
| 82 | ✗ | PetscCall(PetscViewerASCIIPrintf(viewer,"absolute\n"));break; | |
| 83 | 28 | case SVD_CONV_REL: | |
| 84 |
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28 | PetscCall(PetscViewerASCIIPrintf(viewer,"relative to the singular value\n"));break; |
| 85 | ✗ | case SVD_CONV_NORM: | |
| 86 | ✗ | PetscCall(PetscViewerASCIIPrintf(viewer,"relative to the matrix norms\n")); | |
| 87 | ✗ | PetscCall(PetscViewerASCIIPrintf(viewer," computed matrix norms: norm(A)=%g",(double)svd->nrma)); | |
| 88 | ✗ | if (svd->isgeneralized) PetscCall(PetscViewerASCIIPrintf(viewer,", norm(B)=%g",(double)svd->nrmb)); | |
| 89 | ✗ | PetscCall(PetscViewerASCIIPrintf(viewer,"\n")); | |
| 90 | break; | ||
| 91 | ✗ | case SVD_CONV_MAXIT: | |
| 92 | ✗ | PetscCall(PetscViewerASCIIPrintf(viewer,"maximum number of iterations\n"));break; | |
| 93 | ✗ | case SVD_CONV_USER: | |
| 94 | ✗ | PetscCall(PetscViewerASCIIPrintf(viewer,"user-defined\n"));break; | |
| 95 | } | ||
| 96 |
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28 | PetscCall(PetscViewerASCIIUseTabs(viewer,PETSC_TRUE)); |
| 97 |
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28 | if (svd->nini) PetscCall(PetscViewerASCIIPrintf(viewer," dimension of user-provided initial space: %" PetscInt_FMT "\n",PetscAbs(svd->nini))); |
| 98 |
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28 | if (svd->ninil) PetscCall(PetscViewerASCIIPrintf(viewer," dimension of user-provided initial left space: %" PetscInt_FMT "\n",PetscAbs(svd->ninil))); |
| 99 | ✗ | } else PetscTryTypeMethod(svd,view,viewer); | |
| 100 |
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28 | PetscCall(PetscObjectTypeCompareAny((PetscObject)svd,&isshell,SVDCROSS,SVDCYCLIC,"")); |
| 101 |
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28 | PetscCall(PetscObjectTypeCompareAny((PetscObject)svd,&isexternal,SVDSCALAPACK,SVDKSVD,SVDELEMENTAL,SVDPRIMME,"")); |
| 102 |
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28 | if (!isshell && !isexternal) { |
| 103 |
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10 | PetscCall(PetscViewerPushFormat(viewer,PETSC_VIEWER_ASCII_INFO)); |
| 104 |
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10 | if (!svd->V) PetscCall(SVDGetBV(svd,&svd->V,NULL)); |
| 105 |
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10 | PetscCall(BVView(svd->V,viewer)); |
| 106 |
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10 | if (!svd->ds) PetscCall(SVDGetDS(svd,&svd->ds)); |
| 107 |
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10 | PetscCall(DSView(svd->ds,viewer)); |
| 108 |
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10 | PetscCall(PetscViewerPopFormat(viewer)); |
| 109 | } | ||
| 110 |
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6 | PetscFunctionReturn(PETSC_SUCCESS); |
| 111 | } | ||
| 112 | |||
| 113 | /*@ | ||
| 114 | SVDViewFromOptions - View from options | ||
| 115 | |||
| 116 | Collective | ||
| 117 | |||
| 118 | Input Parameters: | ||
| 119 | + svd - the singular value solver context | ||
| 120 | . obj - optional object | ||
| 121 | - name - command line option | ||
| 122 | |||
| 123 | Level: intermediate | ||
| 124 | |||
| 125 | .seealso: SVDView(), SVDCreate() | ||
| 126 | @*/ | ||
| 127 | 5546 | PetscErrorCode SVDViewFromOptions(SVD svd,PetscObject obj,const char name[]) | |
| 128 | { | ||
| 129 |
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5546 | PetscFunctionBegin; |
| 130 |
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5546 | PetscValidHeaderSpecific(svd,SVD_CLASSID,1); |
| 131 |
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5546 | PetscCall(PetscObjectViewFromOptions((PetscObject)svd,obj,name)); |
| 132 |
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1094 | PetscFunctionReturn(PETSC_SUCCESS); |
| 133 | } | ||
| 134 | |||
| 135 | /*@ | ||
| 136 | SVDConvergedReasonView - Displays the reason an SVD solve converged or diverged. | ||
| 137 | |||
| 138 | Collective | ||
| 139 | |||
| 140 | Input Parameters: | ||
| 141 | + svd - the singular value solver context | ||
| 142 | - viewer - the viewer to display the reason | ||
| 143 | |||
| 144 | Options Database Keys: | ||
| 145 | . -svd_converged_reason - print reason for convergence, and number of iterations | ||
| 146 | |||
| 147 | Note: | ||
| 148 | To change the format of the output call PetscViewerPushFormat(viewer,format) before | ||
| 149 | this call. Use PETSC_VIEWER_DEFAULT for the default, use PETSC_VIEWER_FAILED to only | ||
| 150 | display a reason if it fails. The latter can be set in the command line with | ||
| 151 | -svd_converged_reason ::failed | ||
| 152 | |||
| 153 | Level: intermediate | ||
| 154 | |||
| 155 | .seealso: SVDSetTolerances(), SVDGetIterationNumber(), SVDConvergedReasonViewFromOptions() | ||
| 156 | @*/ | ||
| 157 | 28 | PetscErrorCode SVDConvergedReasonView(SVD svd,PetscViewer viewer) | |
| 158 | { | ||
| 159 | 28 | PetscBool isAscii; | |
| 160 | 28 | PetscViewerFormat format; | |
| 161 | |||
| 162 |
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28 | PetscFunctionBegin; |
| 163 |
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28 | if (!viewer) viewer = PETSC_VIEWER_STDOUT_(PetscObjectComm((PetscObject)svd)); |
| 164 |
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28 | PetscCall(PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&isAscii)); |
| 165 |
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28 | if (isAscii) { |
| 166 |
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28 | PetscCall(PetscViewerGetFormat(viewer,&format)); |
| 167 |
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28 | PetscCall(PetscViewerASCIIAddTab(viewer,((PetscObject)svd)->tablevel)); |
| 168 |
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28 | if (svd->reason > 0 && format != PETSC_VIEWER_FAILED) PetscCall(PetscViewerASCIIPrintf(viewer,"%s SVD solve converged (%" PetscInt_FMT " singular triplet%s) due to %s; iterations %" PetscInt_FMT "\n",((PetscObject)svd)->prefix?((PetscObject)svd)->prefix:"",svd->nconv,(svd->nconv>1)?"s":"",SVDConvergedReasons[svd->reason],svd->its)); |
| 169 | ✗ | else if (svd->reason <= 0) PetscCall(PetscViewerASCIIPrintf(viewer,"%s SVD solve did not converge due to %s; iterations %" PetscInt_FMT "\n",((PetscObject)svd)->prefix?((PetscObject)svd)->prefix:"",SVDConvergedReasons[svd->reason],svd->its)); | |
| 170 |
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28 | PetscCall(PetscViewerASCIISubtractTab(viewer,((PetscObject)svd)->tablevel)); |
| 171 | } | ||
| 172 |
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6 | PetscFunctionReturn(PETSC_SUCCESS); |
| 173 | } | ||
| 174 | |||
| 175 | /*@ | ||
| 176 | SVDConvergedReasonViewFromOptions - Processes command line options to determine if/how | ||
| 177 | the SVD converged reason is to be viewed. | ||
| 178 | |||
| 179 | Collective | ||
| 180 | |||
| 181 | Input Parameter: | ||
| 182 | . svd - the singular value solver context | ||
| 183 | |||
| 184 | Level: developer | ||
| 185 | |||
| 186 | .seealso: SVDConvergedReasonView() | ||
| 187 | @*/ | ||
| 188 | 2773 | PetscErrorCode SVDConvergedReasonViewFromOptions(SVD svd) | |
| 189 | { | ||
| 190 | 2773 | PetscViewer viewer; | |
| 191 | 2773 | PetscBool flg; | |
| 192 | 2773 | static PetscBool incall = PETSC_FALSE; | |
| 193 | 2773 | PetscViewerFormat format; | |
| 194 | |||
| 195 |
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2773 | PetscFunctionBegin; |
| 196 |
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2773 | if (incall) PetscFunctionReturn(PETSC_SUCCESS); |
| 197 | 2773 | incall = PETSC_TRUE; | |
| 198 |
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2773 | PetscCall(PetscOptionsCreateViewer(PetscObjectComm((PetscObject)svd),((PetscObject)svd)->options,((PetscObject)svd)->prefix,"-svd_converged_reason",&viewer,&format,&flg)); |
| 199 |
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2773 | if (flg) { |
| 200 |
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20 | PetscCall(PetscViewerPushFormat(viewer,format)); |
| 201 |
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20 | PetscCall(SVDConvergedReasonView(svd,viewer)); |
| 202 |
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20 | PetscCall(PetscViewerPopFormat(viewer)); |
| 203 |
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20 | PetscCall(PetscViewerDestroy(&viewer)); |
| 204 | } | ||
| 205 | 2773 | incall = PETSC_FALSE; | |
| 206 |
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2773 | PetscFunctionReturn(PETSC_SUCCESS); |
| 207 | } | ||
| 208 | |||
| 209 | 2123 | static PetscErrorCode SVDErrorView_ASCII(SVD svd,SVDErrorType etype,PetscViewer viewer) | |
| 210 | { | ||
| 211 | 2123 | PetscReal error,sigma; | |
| 212 | 2123 | PetscInt i,j,numsv; | |
| 213 | |||
| 214 |
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2123 | PetscFunctionBegin; |
| 215 |
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2123 | numsv = svd->stop==SVD_STOP_THRESHOLD? svd->nconv: svd->nsv; |
| 216 |
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2123 | if (svd->nconv<numsv) { |
| 217 | ✗ | PetscCall(PetscViewerASCIIPrintf(viewer," Problem: less than %" PetscInt_FMT " singular values converged\n\n",numsv)); | |
| 218 | ✗ | PetscFunctionReturn(PETSC_SUCCESS); | |
| 219 | } | ||
| 220 |
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12617 | for (i=0;i<numsv;i++) { |
| 221 |
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10494 | PetscCall(SVDComputeError(svd,i,etype,&error)); |
| 222 |
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10494 | if (error>=5.0*svd->tol) { |
| 223 | ✗ | PetscCall(PetscViewerASCIIPrintf(viewer," Problem: some of the first %" PetscInt_FMT " relative errors are higher than the tolerance\n\n",numsv)); | |
| 224 |
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2526 | PetscFunctionReturn(PETSC_SUCCESS); |
| 225 | } | ||
| 226 | } | ||
| 227 |
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5698 | PetscCall(PetscViewerASCIIPrintf(viewer," All %s%ssingular values computed up to the required tolerance:",svd->stop==SVD_STOP_THRESHOLD?"":"requested ",svd->isgeneralized?"generalized ":"")); |
| 228 |
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4652 | for (i=0;i<=(numsv-1)/8;i++) { |
| 229 |
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2529 | PetscCall(PetscViewerASCIIPrintf(viewer,"\n ")); |
| 230 |
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13023 | for (j=0;j<PetscMin(8,numsv-8*i);j++) { |
| 231 |
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10494 | PetscCall(SVDGetSingularTriplet(svd,8*i+j,&sigma,NULL,NULL)); |
| 232 |
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10494 | PetscCall(PetscViewerASCIIPrintf(viewer,"%.5f",(double)sigma)); |
| 233 |
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10494 | if (8*i+j+1<numsv) PetscCall(PetscViewerASCIIPrintf(viewer,", ")); |
| 234 | } | ||
| 235 | } | ||
| 236 |
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2123 | PetscCall(PetscViewerASCIIPrintf(viewer,"\n\n")); |
| 237 |
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419 | PetscFunctionReturn(PETSC_SUCCESS); |
| 238 | } | ||
| 239 | |||
| 240 | 38 | static PetscErrorCode SVDErrorView_DETAIL(SVD svd,SVDErrorType etype,PetscViewer viewer) | |
| 241 | { | ||
| 242 | 38 | PetscReal error,sigma; | |
| 243 | 38 | PetscInt i; | |
| 244 | 38 | char ex[30],sep[]=" ---------------------- --------------------\n"; | |
| 245 | |||
| 246 |
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38 | PetscFunctionBegin; |
| 247 |
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38 | if (!svd->nconv) PetscFunctionReturn(PETSC_SUCCESS); |
| 248 |
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38 | switch (etype) { |
| 249 | ✗ | case SVD_ERROR_ABSOLUTE: | |
| 250 | ✗ | PetscCall(PetscSNPrintf(ex,sizeof(ex)," absolute error")); | |
| 251 | break; | ||
| 252 | 28 | case SVD_ERROR_RELATIVE: | |
| 253 |
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28 | PetscCall(PetscSNPrintf(ex,sizeof(ex)," relative error")); |
| 254 | break; | ||
| 255 | 10 | case SVD_ERROR_NORM: | |
| 256 |
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10 | if (svd->isgeneralized) PetscCall(PetscSNPrintf(ex,sizeof(ex)," ||r||/||[A;B]||")); |
| 257 |
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10 | else PetscCall(PetscSNPrintf(ex,sizeof(ex)," ||r||/||A||")); |
| 258 | break; | ||
| 259 | } | ||
| 260 |
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38 | PetscCall(PetscViewerASCIIPrintf(viewer,"%s sigma %s\n%s",sep,ex,sep)); |
| 261 |
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258 | for (i=0;i<svd->nconv;i++) { |
| 262 |
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220 | PetscCall(SVDGetSingularTriplet(svd,i,&sigma,NULL,NULL)); |
| 263 |
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220 | PetscCall(SVDComputeError(svd,i,etype,&error)); |
| 264 |
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220 | PetscCall(PetscViewerASCIIPrintf(viewer," % 6f %12g\n",(double)sigma,(double)error)); |
| 265 | } | ||
| 266 |
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38 | PetscCall(PetscViewerASCIIPrintf(viewer,"%s",sep)); |
| 267 |
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8 | PetscFunctionReturn(PETSC_SUCCESS); |
| 268 | } | ||
| 269 | |||
| 270 | 20 | static PetscErrorCode SVDErrorView_MATLAB(SVD svd,SVDErrorType etype,PetscViewer viewer) | |
| 271 | { | ||
| 272 | 20 | PetscReal error; | |
| 273 | 20 | PetscInt i; | |
| 274 | 20 | const char *name; | |
| 275 | |||
| 276 |
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20 | PetscFunctionBegin; |
| 277 |
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20 | PetscCall(PetscObjectGetName((PetscObject)svd,&name)); |
| 278 |
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20 | PetscCall(PetscViewerASCIIPrintf(viewer,"Error_%s = [\n",name)); |
| 279 |
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140 | for (i=0;i<svd->nconv;i++) { |
| 280 |
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120 | PetscCall(SVDComputeError(svd,i,etype,&error)); |
| 281 |
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120 | PetscCall(PetscViewerASCIIPrintf(viewer,"%18.16e\n",(double)error)); |
| 282 | } | ||
| 283 |
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20 | PetscCall(PetscViewerASCIIPrintf(viewer,"];\n")); |
| 284 |
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4 | PetscFunctionReturn(PETSC_SUCCESS); |
| 285 | } | ||
| 286 | |||
| 287 | /*@ | ||
| 288 | SVDErrorView - Displays the errors associated with the computed solution | ||
| 289 | (as well as the singular values). | ||
| 290 | |||
| 291 | Collective | ||
| 292 | |||
| 293 | Input Parameters: | ||
| 294 | + svd - the singular value solver context | ||
| 295 | . etype - error type | ||
| 296 | - viewer - optional visualization context | ||
| 297 | |||
| 298 | Options Database Keys: | ||
| 299 | + -svd_error_absolute - print absolute errors of each singular triplet | ||
| 300 | . -svd_error_relative - print relative errors of each singular triplet | ||
| 301 | - -svd_error_norm - print errors relative to the matrix norms of each singular triplet | ||
| 302 | |||
| 303 | Notes: | ||
| 304 | By default, this function checks the error of all singular triplets and prints | ||
| 305 | the singular values if all of them are below the requested tolerance. | ||
| 306 | If the viewer has format=PETSC_VIEWER_ASCII_INFO_DETAIL then a table with | ||
| 307 | singular values and corresponding errors is printed. | ||
| 308 | |||
| 309 | Level: intermediate | ||
| 310 | |||
| 311 | .seealso: SVDSolve(), SVDValuesView(), SVDVectorsView() | ||
| 312 | @*/ | ||
| 313 | 2181 | PetscErrorCode SVDErrorView(SVD svd,SVDErrorType etype,PetscViewer viewer) | |
| 314 | { | ||
| 315 | 2181 | PetscBool isascii; | |
| 316 | 2181 | PetscViewerFormat format; | |
| 317 | |||
| 318 |
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2181 | PetscFunctionBegin; |
| 319 |
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2181 | PetscValidHeaderSpecific(svd,SVD_CLASSID,1); |
| 320 |
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2181 | if (!viewer) PetscCall(PetscViewerASCIIGetStdout(PetscObjectComm((PetscObject)svd),&viewer)); |
| 321 |
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2181 | PetscValidHeaderSpecific(viewer,PETSC_VIEWER_CLASSID,3); |
| 322 |
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2181 | PetscCheckSameComm(svd,1,viewer,3); |
| 323 |
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2181 | SVDCheckSolved(svd,1); |
| 324 |
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2181 | PetscCall(PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&isascii)); |
| 325 |
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2181 | if (!isascii) PetscFunctionReturn(PETSC_SUCCESS); |
| 326 | |||
| 327 |
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2181 | PetscCall(PetscViewerGetFormat(viewer,&format)); |
| 328 |
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2181 | switch (format) { |
| 329 | 2123 | case PETSC_VIEWER_DEFAULT: | |
| 330 | case PETSC_VIEWER_ASCII_INFO: | ||
| 331 |
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2123 | PetscCall(SVDErrorView_ASCII(svd,etype,viewer)); |
| 332 | break; | ||
| 333 | 38 | case PETSC_VIEWER_ASCII_INFO_DETAIL: | |
| 334 |
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38 | PetscCall(SVDErrorView_DETAIL(svd,etype,viewer)); |
| 335 | break; | ||
| 336 | 20 | case PETSC_VIEWER_ASCII_MATLAB: | |
| 337 |
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20 | PetscCall(SVDErrorView_MATLAB(svd,etype,viewer)); |
| 338 | break; | ||
| 339 | ✗ | default: | |
| 340 | ✗ | PetscCall(PetscInfo(svd,"Unsupported viewer format %s\n",PetscViewerFormats[format])); | |
| 341 | } | ||
| 342 |
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431 | PetscFunctionReturn(PETSC_SUCCESS); |
| 343 | } | ||
| 344 | |||
| 345 | /*@ | ||
| 346 | SVDErrorViewFromOptions - Processes command line options to determine if/how | ||
| 347 | the errors of the computed solution are to be viewed. | ||
| 348 | |||
| 349 | Collective | ||
| 350 | |||
| 351 | Input Parameter: | ||
| 352 | . svd - the singular value solver context | ||
| 353 | |||
| 354 | Level: developer | ||
| 355 | |||
| 356 | .seealso: SVDErrorView() | ||
| 357 | @*/ | ||
| 358 | 2773 | PetscErrorCode SVDErrorViewFromOptions(SVD svd) | |
| 359 | { | ||
| 360 | 2773 | PetscViewer viewer; | |
| 361 | 2773 | PetscBool flg; | |
| 362 | 2773 | static PetscBool incall = PETSC_FALSE; | |
| 363 | 2773 | PetscViewerFormat format; | |
| 364 | |||
| 365 |
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2773 | PetscFunctionBegin; |
| 366 |
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2773 | if (incall) PetscFunctionReturn(PETSC_SUCCESS); |
| 367 | 2773 | incall = PETSC_TRUE; | |
| 368 |
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2773 | PetscCall(PetscOptionsCreateViewer(PetscObjectComm((PetscObject)svd),((PetscObject)svd)->options,((PetscObject)svd)->prefix,"-svd_error_absolute",&viewer,&format,&flg)); |
| 369 |
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2773 | if (flg) { |
| 370 |
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20 | PetscCall(PetscViewerPushFormat(viewer,format)); |
| 371 |
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20 | PetscCall(SVDErrorView(svd,SVD_ERROR_ABSOLUTE,viewer)); |
| 372 |
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20 | PetscCall(PetscViewerPopFormat(viewer)); |
| 373 |
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20 | PetscCall(PetscViewerDestroy(&viewer)); |
| 374 | } | ||
| 375 |
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2773 | PetscCall(PetscOptionsCreateViewer(PetscObjectComm((PetscObject)svd),((PetscObject)svd)->options,((PetscObject)svd)->prefix,"-svd_error_relative",&viewer,&format,&flg)); |
| 376 |
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2773 | if (flg) { |
| 377 |
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20 | PetscCall(PetscViewerPushFormat(viewer,format)); |
| 378 |
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20 | PetscCall(SVDErrorView(svd,SVD_ERROR_RELATIVE,viewer)); |
| 379 |
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20 | PetscCall(PetscViewerPopFormat(viewer)); |
| 380 |
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20 | PetscCall(PetscViewerDestroy(&viewer)); |
| 381 | } | ||
| 382 |
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2773 | PetscCall(PetscOptionsCreateViewer(PetscObjectComm((PetscObject)svd),((PetscObject)svd)->options,((PetscObject)svd)->prefix,"-svd_error_norm",&viewer,&format,&flg)); |
| 383 |
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2773 | if (flg) { |
| 384 |
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10 | PetscCall(PetscViewerPushFormat(viewer,format)); |
| 385 |
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10 | PetscCall(SVDErrorView(svd,SVD_ERROR_NORM,viewer)); |
| 386 |
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10 | PetscCall(PetscViewerPopFormat(viewer)); |
| 387 |
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10 | PetscCall(PetscViewerDestroy(&viewer)); |
| 388 | } | ||
| 389 | 2773 | incall = PETSC_FALSE; | |
| 390 |
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2773 | PetscFunctionReturn(PETSC_SUCCESS); |
| 391 | } | ||
| 392 | |||
| 393 | 16 | static PetscErrorCode SVDValuesView_DRAW(SVD svd,PetscViewer viewer) | |
| 394 | { | ||
| 395 | 16 | PetscDraw draw; | |
| 396 | 16 | PetscDrawSP drawsp; | |
| 397 | 16 | PetscReal re,im=0.0; | |
| 398 | 16 | PetscInt i; | |
| 399 | |||
| 400 |
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16 | PetscFunctionBegin; |
| 401 |
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16 | if (!svd->nconv) PetscFunctionReturn(PETSC_SUCCESS); |
| 402 |
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16 | PetscCall(PetscViewerDrawGetDraw(viewer,0,&draw)); |
| 403 |
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16 | PetscCall(PetscDrawSetTitle(draw,"Computed singular values")); |
| 404 |
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16 | PetscCall(PetscDrawSPCreate(draw,1,&drawsp)); |
| 405 |
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144 | for (i=0;i<svd->nconv;i++) { |
| 406 | 128 | re = svd->sigma[svd->perm[i]]; | |
| 407 |
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128 | PetscCall(PetscDrawSPAddPoint(drawsp,&re,&im)); |
| 408 | } | ||
| 409 |
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16 | PetscCall(PetscDrawSPDraw(drawsp,PETSC_TRUE)); |
| 410 |
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16 | PetscCall(PetscDrawSPSave(drawsp)); |
| 411 |
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16 | PetscCall(PetscDrawSPDestroy(&drawsp)); |
| 412 |
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2 | PetscFunctionReturn(PETSC_SUCCESS); |
| 413 | } | ||
| 414 | |||
| 415 | 10 | static PetscErrorCode SVDValuesView_BINARY(SVD svd,PetscViewer viewer) | |
| 416 | { | ||
| 417 | 10 | PetscInt i,k; | |
| 418 | 10 | PetscReal *sv; | |
| 419 | |||
| 420 |
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10 | PetscFunctionBegin; |
| 421 |
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10 | PetscCall(PetscMalloc1(svd->nconv,&sv)); |
| 422 |
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70 | for (i=0;i<svd->nconv;i++) { |
| 423 | 60 | k = svd->perm[i]; | |
| 424 | 60 | sv[i] = svd->sigma[k]; | |
| 425 | } | ||
| 426 |
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10 | PetscCall(PetscViewerBinaryWrite(viewer,sv,svd->nconv,PETSC_REAL)); |
| 427 |
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10 | PetscCall(PetscFree(sv)); |
| 428 |
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2 | PetscFunctionReturn(PETSC_SUCCESS); |
| 429 | } | ||
| 430 | |||
| 431 | #if defined(PETSC_HAVE_HDF5) | ||
| 432 | static PetscErrorCode SVDValuesView_HDF5(SVD svd,PetscViewer viewer) | ||
| 433 | { | ||
| 434 | PetscInt i,k,n,N; | ||
| 435 | PetscMPIInt rank; | ||
| 436 | Vec v; | ||
| 437 | char vname[30]; | ||
| 438 | const char *ename; | ||
| 439 | |||
| 440 | PetscFunctionBegin; | ||
| 441 | PetscCallMPI(MPI_Comm_rank(PetscObjectComm((PetscObject)svd),&rank)); | ||
| 442 | N = svd->nconv; | ||
| 443 | n = rank? 0: N; | ||
| 444 | /* create a vector containing the singular values */ | ||
| 445 | PetscCall(VecCreateMPI(PetscObjectComm((PetscObject)svd),n,N,&v)); | ||
| 446 | PetscCall(PetscObjectGetName((PetscObject)svd,&ename)); | ||
| 447 | PetscCall(PetscSNPrintf(vname,sizeof(vname),"sigma_%s",ename)); | ||
| 448 | PetscCall(PetscObjectSetName((PetscObject)v,vname)); | ||
| 449 | if (!rank) { | ||
| 450 | for (i=0;i<svd->nconv;i++) { | ||
| 451 | k = svd->perm[i]; | ||
| 452 | PetscCall(VecSetValue(v,i,svd->sigma[k],INSERT_VALUES)); | ||
| 453 | } | ||
| 454 | } | ||
| 455 | PetscCall(VecAssemblyBegin(v)); | ||
| 456 | PetscCall(VecAssemblyEnd(v)); | ||
| 457 | PetscCall(VecView(v,viewer)); | ||
| 458 | PetscCall(VecDestroy(&v)); | ||
| 459 | PetscFunctionReturn(PETSC_SUCCESS); | ||
| 460 | } | ||
| 461 | #endif | ||
| 462 | |||
| 463 | 20 | static PetscErrorCode SVDValuesView_ASCII(SVD svd,PetscViewer viewer) | |
| 464 | { | ||
| 465 | 20 | PetscInt i; | |
| 466 | |||
| 467 |
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20 | PetscFunctionBegin; |
| 468 |
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20 | PetscCall(PetscViewerASCIIPrintf(viewer,"Singular values = \n")); |
| 469 |
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140 | for (i=0;i<svd->nconv;i++) PetscCall(PetscViewerASCIIPrintf(viewer," %.5f\n",(double)svd->sigma[svd->perm[i]])); |
| 470 |
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20 | PetscCall(PetscViewerASCIIPrintf(viewer,"\n")); |
| 471 |
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4 | PetscFunctionReturn(PETSC_SUCCESS); |
| 472 | } | ||
| 473 | |||
| 474 | 10 | static PetscErrorCode SVDValuesView_MATLAB(SVD svd,PetscViewer viewer) | |
| 475 | { | ||
| 476 | 10 | PetscInt i; | |
| 477 | 10 | const char *name; | |
| 478 | |||
| 479 |
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10 | PetscFunctionBegin; |
| 480 |
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10 | PetscCall(PetscObjectGetName((PetscObject)svd,&name)); |
| 481 |
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10 | PetscCall(PetscViewerASCIIPrintf(viewer,"Sigma_%s = [\n",name)); |
| 482 |
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45 | for (i=0;i<svd->nconv;i++) PetscCall(PetscViewerASCIIPrintf(viewer,"%18.16e\n",(double)svd->sigma[svd->perm[i]])); |
| 483 |
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10 | PetscCall(PetscViewerASCIIPrintf(viewer,"];\n")); |
| 484 |
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2 | PetscFunctionReturn(PETSC_SUCCESS); |
| 485 | } | ||
| 486 | |||
| 487 | /*@ | ||
| 488 | SVDValuesView - Displays the computed singular values in a viewer. | ||
| 489 | |||
| 490 | Collective | ||
| 491 | |||
| 492 | Input Parameters: | ||
| 493 | + svd - the singular value solver context | ||
| 494 | - viewer - the viewer | ||
| 495 | |||
| 496 | Options Database Key: | ||
| 497 | . -svd_view_values - print computed singular values | ||
| 498 | |||
| 499 | Level: intermediate | ||
| 500 | |||
| 501 | .seealso: SVDSolve(), SVDVectorsView(), SVDErrorView() | ||
| 502 | @*/ | ||
| 503 | 56 | PetscErrorCode SVDValuesView(SVD svd,PetscViewer viewer) | |
| 504 | { | ||
| 505 | 56 | PetscBool isascii,isdraw,isbinary; | |
| 506 | 56 | PetscViewerFormat format; | |
| 507 | #if defined(PETSC_HAVE_HDF5) | ||
| 508 | PetscBool ishdf5; | ||
| 509 | #endif | ||
| 510 | |||
| 511 |
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56 | PetscFunctionBegin; |
| 512 |
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56 | PetscValidHeaderSpecific(svd,SVD_CLASSID,1); |
| 513 |
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56 | if (!viewer) PetscCall(PetscViewerASCIIGetStdout(PetscObjectComm((PetscObject)svd),&viewer)); |
| 514 |
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56 | PetscValidHeaderSpecific(viewer,PETSC_VIEWER_CLASSID,2); |
| 515 |
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56 | PetscCheckSameComm(svd,1,viewer,2); |
| 516 |
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56 | SVDCheckSolved(svd,1); |
| 517 |
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56 | PetscCall(PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw)); |
| 518 |
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56 | PetscCall(PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERBINARY,&isbinary)); |
| 519 | #if defined(PETSC_HAVE_HDF5) | ||
| 520 | PetscCall(PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERHDF5,&ishdf5)); | ||
| 521 | #endif | ||
| 522 |
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56 | PetscCall(PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&isascii)); |
| 523 |
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56 | if (isdraw) PetscCall(SVDValuesView_DRAW(svd,viewer)); |
| 524 |
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40 | else if (isbinary) PetscCall(SVDValuesView_BINARY(svd,viewer)); |
| 525 | #if defined(PETSC_HAVE_HDF5) | ||
| 526 | else if (ishdf5) PetscCall(SVDValuesView_HDF5(svd,viewer)); | ||
| 527 | #endif | ||
| 528 |
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30 | else if (isascii) { |
| 529 |
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30 | PetscCall(PetscViewerGetFormat(viewer,&format)); |
| 530 |
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30 | switch (format) { |
| 531 | 20 | case PETSC_VIEWER_DEFAULT: | |
| 532 | case PETSC_VIEWER_ASCII_INFO: | ||
| 533 | case PETSC_VIEWER_ASCII_INFO_DETAIL: | ||
| 534 |
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20 | PetscCall(SVDValuesView_ASCII(svd,viewer)); |
| 535 | break; | ||
| 536 | 10 | case PETSC_VIEWER_ASCII_MATLAB: | |
| 537 |
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10 | PetscCall(SVDValuesView_MATLAB(svd,viewer)); |
| 538 | break; | ||
| 539 | ✗ | default: | |
| 540 | ✗ | PetscCall(PetscInfo(svd,"Unsupported viewer format %s\n",PetscViewerFormats[format])); | |
| 541 | } | ||
| 542 | } | ||
| 543 |
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10 | PetscFunctionReturn(PETSC_SUCCESS); |
| 544 | } | ||
| 545 | |||
| 546 | /*@ | ||
| 547 | SVDValuesViewFromOptions - Processes command line options to determine if/how | ||
| 548 | the computed singular values are to be viewed. | ||
| 549 | |||
| 550 | Collective | ||
| 551 | |||
| 552 | Input Parameter: | ||
| 553 | . svd - the singular value solver context | ||
| 554 | |||
| 555 | Level: developer | ||
| 556 | |||
| 557 | .seealso: SVDValuesView() | ||
| 558 | @*/ | ||
| 559 | 2773 | PetscErrorCode SVDValuesViewFromOptions(SVD svd) | |
| 560 | { | ||
| 561 | 2773 | PetscViewer viewer; | |
| 562 | 2773 | PetscBool flg; | |
| 563 | 2773 | static PetscBool incall = PETSC_FALSE; | |
| 564 | 2773 | PetscViewerFormat format; | |
| 565 | |||
| 566 |
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2773 | PetscFunctionBegin; |
| 567 |
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2773 | if (incall) PetscFunctionReturn(PETSC_SUCCESS); |
| 568 | 2773 | incall = PETSC_TRUE; | |
| 569 |
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2773 | PetscCall(PetscOptionsCreateViewer(PetscObjectComm((PetscObject)svd),((PetscObject)svd)->options,((PetscObject)svd)->prefix,"-svd_view_values",&viewer,&format,&flg)); |
| 570 |
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2773 | if (flg) { |
| 571 |
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56 | PetscCall(PetscViewerPushFormat(viewer,format)); |
| 572 |
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56 | PetscCall(SVDValuesView(svd,viewer)); |
| 573 |
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56 | PetscCall(PetscViewerPopFormat(viewer)); |
| 574 |
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56 | PetscCall(PetscViewerDestroy(&viewer)); |
| 575 | } | ||
| 576 | 2773 | incall = PETSC_FALSE; | |
| 577 |
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2773 | PetscFunctionReturn(PETSC_SUCCESS); |
| 578 | } | ||
| 579 | |||
| 580 | /*@ | ||
| 581 | SVDVectorsView - Outputs computed singular vectors to a viewer. | ||
| 582 | |||
| 583 | Collective | ||
| 584 | |||
| 585 | Input Parameters: | ||
| 586 | + svd - the singular value solver context | ||
| 587 | - viewer - the viewer | ||
| 588 | |||
| 589 | Options Database Key: | ||
| 590 | . -svd_view_vectors - output singular vectors | ||
| 591 | |||
| 592 | Note: | ||
| 593 | Right and left singular vectors are interleaved, that is, the vectors are | ||
| 594 | output in the following order V0, U0, V1, U1, V2, U2, ... | ||
| 595 | |||
| 596 | Level: intermediate | ||
| 597 | |||
| 598 | .seealso: SVDSolve(), SVDValuesView(), SVDErrorView() | ||
| 599 | @*/ | ||
| 600 | 10 | PetscErrorCode SVDVectorsView(SVD svd,PetscViewer viewer) | |
| 601 | { | ||
| 602 | 10 | PetscInt i,k; | |
| 603 | 10 | Vec x; | |
| 604 | 10 | char vname[30]; | |
| 605 | 10 | const char *ename; | |
| 606 | |||
| 607 |
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10 | PetscFunctionBegin; |
| 608 |
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10 | PetscValidHeaderSpecific(svd,SVD_CLASSID,1); |
| 609 |
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10 | if (!viewer) PetscCall(PetscViewerASCIIGetStdout(PetscObjectComm((PetscObject)svd),&viewer)); |
| 610 |
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10 | PetscValidHeaderSpecific(viewer,PETSC_VIEWER_CLASSID,2); |
| 611 |
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10 | PetscCheckSameComm(svd,1,viewer,2); |
| 612 |
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10 | SVDCheckSolved(svd,1); |
| 613 |
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10 | if (svd->nconv) { |
| 614 |
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10 | PetscCall(PetscObjectGetName((PetscObject)svd,&ename)); |
| 615 |
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10 | PetscCall(SVDComputeVectors(svd)); |
| 616 |
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40 | for (i=0;i<svd->nconv;i++) { |
| 617 | 30 | k = svd->perm[i]; | |
| 618 |
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30 | PetscCall(PetscSNPrintf(vname,sizeof(vname),"V%" PetscInt_FMT "_%s",i,ename)); |
| 619 |
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30 | PetscCall(BVGetColumn(svd->V,k,&x)); |
| 620 |
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30 | PetscCall(PetscObjectSetName((PetscObject)x,vname)); |
| 621 |
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30 | PetscCall(VecView(x,viewer)); |
| 622 |
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30 | PetscCall(BVRestoreColumn(svd->V,k,&x)); |
| 623 |
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30 | PetscCall(PetscSNPrintf(vname,sizeof(vname),"U%" PetscInt_FMT "_%s",i,ename)); |
| 624 |
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30 | PetscCall(BVGetColumn(svd->U,k,&x)); |
| 625 |
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30 | PetscCall(PetscObjectSetName((PetscObject)x,vname)); |
| 626 |
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30 | PetscCall(VecView(x,viewer)); |
| 627 |
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30 | PetscCall(BVRestoreColumn(svd->U,k,&x)); |
| 628 | } | ||
| 629 | } | ||
| 630 |
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2 | PetscFunctionReturn(PETSC_SUCCESS); |
| 631 | } | ||
| 632 | |||
| 633 | /*@ | ||
| 634 | SVDVectorsViewFromOptions - Processes command line options to determine if/how | ||
| 635 | the computed singular vectors are to be viewed. | ||
| 636 | |||
| 637 | Collective | ||
| 638 | |||
| 639 | Input Parameter: | ||
| 640 | . svd - the singular value solver context | ||
| 641 | |||
| 642 | Level: developer | ||
| 643 | |||
| 644 | .seealso: SVDVectorsView() | ||
| 645 | @*/ | ||
| 646 | 2773 | PetscErrorCode SVDVectorsViewFromOptions(SVD svd) | |
| 647 | { | ||
| 648 | 2773 | PetscViewer viewer; | |
| 649 | 2773 | PetscBool flg = PETSC_FALSE; | |
| 650 | 2773 | static PetscBool incall = PETSC_FALSE; | |
| 651 | 2773 | PetscViewerFormat format; | |
| 652 | |||
| 653 |
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2773 | PetscFunctionBegin; |
| 654 |
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2773 | if (incall) PetscFunctionReturn(PETSC_SUCCESS); |
| 655 | 2773 | incall = PETSC_TRUE; | |
| 656 |
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2773 | PetscCall(PetscOptionsCreateViewer(PetscObjectComm((PetscObject)svd),((PetscObject)svd)->options,((PetscObject)svd)->prefix,"-svd_view_vectors",&viewer,&format,&flg)); |
| 657 |
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2773 | if (flg) { |
| 658 |
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10 | PetscCall(PetscViewerPushFormat(viewer,format)); |
| 659 |
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10 | PetscCall(SVDVectorsView(svd,viewer)); |
| 660 |
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10 | PetscCall(PetscViewerPopFormat(viewer)); |
| 661 |
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10 | PetscCall(PetscViewerDestroy(&viewer)); |
| 662 | } | ||
| 663 | 2773 | incall = PETSC_FALSE; | |
| 664 |
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2773 | PetscFunctionReturn(PETSC_SUCCESS); |
| 665 | } | ||
| 666 |