[petsc-users] DIVERGED_DTOL
Barry Smith
bsmith at mcs.anl.gov
Tue Jan 15 13:02:32 CST 2013
> 1.701448294063e+04 > 1.e4*1.145582415879e+00 hence it declares divergence
Note that at iteration 171 the preconditioned residual is 9.348832909193e-13 < 1.e-12 * 1.145582415879e+00 very good convergence.
You seem to have set an unreasonably tight convergence criteria. In double precision you can never realistically expect to use a rtol smaller than e-12. In fact normally it is not reasonable to use more than like 1.e-8. Those extra digits don't mean anything.
Barry
On Jan 15, 2013, at 11:47 AM, Matthew Knepley <knepley at gmail.com> wrote:
> On Tue, Jan 15, 2013 at 11:41 AM, w_ang_temp <w_ang_temp at 163.com> wrote:
> Hello,
> I am not sure about it. The following is the information under -ksp_monitor_true_residual.
> So can you tell me that how the DIVERGED_DTOL occurs(||rk||>dtol*||b||).
> PS: dtol use the default parameter; normb:67139.2122204160.
>
> Its r_0, not b, so its preconditioned.
>
> Matt
>
> Thanks. Jim
>
> 0 KSP preconditioned resid norm 1.145582415879e+00 true resid norm 6.713921222042e+04 ||r(i)||/||b|| 1.000000000000e+00
> 1 KSP preconditioned resid norm 1.668442371722e-01 true resid norm 9.315411570816e+03 ||r(i)||/||b|| 1.387477044001e-01
> 2 KSP preconditioned resid norm 7.332643142215e-02 true resid norm 4.580901760869e+03 ||r(i)||/||b|| 6.822990037223e-02
> 3 KSP preconditioned resid norm 4.350407110218e-02 true resid norm 2.969077057634e+03 ||r(i)||/||b|| 4.422269727990e-02
> 4 KSP preconditioned resid norm 2.967861353379e-02 true resid norm 2.171406152803e+03 ||r(i)||/||b|| 3.234184734957e-02
> 5 KSP preconditioned resid norm 2.194027213667e-02 true resid norm 1.697287121259e+03 ||r(i)||/||b|| 2.528011671759e-02
> 6 KSP preconditioned resid norm 1.709062414900e-02 true resid norm 1.385369331879e+03 ||r(i)||/||b|| 2.063428041621e-02
> 7 KSP preconditioned resid norm 1.381432438160e-02 true resid norm 1.166961199876e+03 ||r(i)||/||b|| 1.738121674775e-02
> 8 KSP preconditioned resid norm 1.147659811931e-02 true resid norm 1.004464430978e+03 ||r(i)||/||b|| 1.496092071620e-02
> 9 KSP preconditioned resid norm 9.735929665267e-03 true resid norm 8.766474922321e+02 ||r(i)||/||b|| 1.305716083403e-02
> 10 KSP preconditioned resid norm 8.401139127073e-03 true resid norm 7.735891175651e+02 ||r(i)||/||b|| 1.152216554203e-02
> 11 KSP preconditioned resid norm 7.365394582494e-03 true resid norm 6.915224037997e+02 ||r(i)||/||b|| 1.029982898115e-02
> 12 KSP preconditioned resid norm 6.581540116011e-03 true resid norm 6.301038366131e+02 ||r(i)||/||b|| 9.385034702887e-03
> 13 KSP preconditioned resid norm 6.074644880442e-03 true resid norm 5.941485646876e+02 ||r(i)||/||b|| 8.849501580939e-03
> 14 KSP preconditioned resid norm 6.000465973365e-03 true resid norm 6.039460304962e+02 ||r(i)||/||b|| 8.995429206310e-03
> 15 KSP preconditioned resid norm 6.700641680203e-03 true resid norm 7.024109463517e+02 ||r(i)||/||b|| 1.046200756788e-02
> 16 KSP preconditioned resid norm 8.572956854817e-03 true resid norm 9.345547794474e+02 ||r(i)||/||b|| 1.391965661407e-02
> 17 KSP preconditioned resid norm 1.171098947054e-02 true resid norm 1.308106003451e+03 ||r(i)||/||b|| 1.948348752078e-02
> 18 KSP preconditioned resid norm 1.553731077786e-02 true resid norm 1.756744729914e+03 ||r(i)||/||b|| 2.616570364494e-02
> 19 KSP preconditioned resid norm 1.854806156796e-02 true resid norm 2.108867138509e+03 ||r(i)||/||b|| 3.141036465524e-02
> 20 KSP preconditioned resid norm 1.882735116093e-02 true resid norm 2.144875683978e+03 ||r(i)||/||b|| 3.194669125603e-02
> 21 KSP preconditioned resid norm 1.581371157031e-02 true resid norm 1.800227274907e+03 ||r(i)||/||b|| 2.681335117542e-02
> 22 KSP preconditioned resid norm 1.116066908962e-02 true resid norm 1.264488331079e+03 ||r(i)||/||b|| 1.883382734561e-02
> 23 KSP preconditioned resid norm 6.935989655893e-03 true resid norm 7.781370409044e+02 ||r(i)||/||b|| 1.158990424776e-02
> 24 KSP preconditioned resid norm 4.056542969364e-03 true resid norm 4.491311011610e+02 ||r(i)||/||b|| 6.689549762462e-03
> 25 KSP preconditioned resid norm 2.459663949493e-03 true resid norm 2.758154676638e+02 ||r(i)||/||b|| 4.108112957273e-03
> 26 KSP preconditioned resid norm 1.781038036990e-03 true resid norm 2.198771325293e+02 ||r(i)||/||b|| 3.274943587474e-03
> 27 KSP preconditioned resid norm 1.686781020289e-03 true resid norm 2.433346354927e+02 ||r(i)||/||b|| 3.624329619685e-03
> 28 KSP preconditioned resid norm 2.076540169200e-03 true resid norm 3.382587656684e+02 ||r(i)||/||b|| 5.038170012450e-03
> 29 KSP preconditioned resid norm 2.912174325946e-03 true resid norm 4.994106293188e+02 ||r(i)||/||b|| 7.438434452868e-03
> 30 KSP preconditioned resid norm 3.668418500885e-03 true resid norm 6.368223901851e+02 ||r(i)||/||b|| 9.485103699079e-03
> 31 KSP preconditioned resid norm 3.471520993065e-03 true resid norm 6.005845512437e+02 ||r(i)||/||b|| 8.945361903740e-03
> 32 KSP preconditioned resid norm 2.400628046233e-03 true resid norm 4.087910715821e+02 ||r(i)||/||b|| 6.088708193955e-03
> 33 KSP preconditioned resid norm 1.392978496225e-03 true resid norm 2.329031165345e+02 ||r(i)||/||b|| 3.468958136862e-03
> 34 KSP preconditioned resid norm 1.013807019427e-03 true resid norm 1.877543843971e+02 ||r(i)||/||b|| 2.796493705954e-03
> 35 KSP preconditioned resid norm 1.261815551662e-03 true resid norm 2.614230430124e+02 ||r(i)||/||b|| 3.893746059369e-03
> 36 KSP preconditioned resid norm 1.853746656434e-03 true resid norm 3.922570169729e+02 ||r(i)||/||b|| 5.842442948022e-03
> 37 KSP preconditioned resid norm 2.657914774769e-03 true resid norm 5.613289970100e+02 ||r(i)||/||b|| 8.360672972556e-03
> 38 KSP preconditioned resid norm 3.436994681718e-03 true resid norm 7.215058669001e+02 ||r(i)||/||b|| 1.074641544097e-02
> 39 KSP preconditioned resid norm 3.614431832954e-03 true resid norm 7.538884668185e+02 ||r(i)||/||b|| 1.122873566558e-02
> 40 KSP preconditioned resid norm 2.766407868570e-03 true resid norm 5.733943971401e+02 ||r(i)||/||b|| 8.540380176902e-03
> 41 KSP preconditioned resid norm 1.467719776874e-03 true resid norm 3.023387886260e+02 ||r(i)||/||b|| 4.503162587512e-03
> 42 KSP preconditioned resid norm 5.524746404481e-04 true resid norm 1.130986298210e+02 ||r(i)||/||b|| 1.684539125209e-03
> 43 KSP preconditioned resid norm 1.546370264138e-04 true resid norm 3.145301955484e+01 ||r(i)||/||b|| 4.684746590648e-04
> 44 KSP preconditioned resid norm 3.362252620216e-05 true resid norm 6.790570379860e+00 ||r(i)||/||b|| 1.011416451770e-04
> 45 KSP preconditioned resid norm 6.273756038479e-06 true resid norm 1.247817148548e+00 ||r(i)||/||b|| 1.858551965805e-05
> 46 KSP preconditioned resid norm 1.802876108688e-06 true resid norm 3.246014610548e-01 ||r(i)||/||b|| 4.834752305242e-06
> 47 KSP preconditioned resid norm 1.955901149713e-06 true resid norm 3.605076707485e-01 ||r(i)||/||b|| 5.369554673429e-06
> 48 KSP preconditioned resid norm 2.146815227031e-06 true resid norm 4.034225428527e-01 ||r(i)||/||b|| 6.008747042314e-06
> 49 KSP preconditioned resid norm 7.835209417034e-07 true resid norm 1.092344842431e-01 ||r(i)||/||b|| 1.626984896464e-06
> 50 KSP preconditioned resid norm 5.949209762592e-07 true resid norm 6.093308467935e-02 ||r(i)||/||b|| 9.075632951920e-07
> 51 KSP preconditioned resid norm 4.843097958216e-07 true resid norm 3.907306790091e-02 ||r(i)||/||b|| 5.819709020808e-07
> 52 KSP preconditioned resid norm 4.015928439388e-07 true resid norm 2.047742276673e-02 ||r(i)||/||b|| 3.049994494946e-07
> 53 KSP preconditioned resid norm 3.831231784925e-07 true resid norm 3.214301153383e-02 ||r(i)||/||b|| 4.787516932475e-07
> 54 KSP preconditioned resid norm 3.936949175538e-07 true resid norm 5.284803093534e-02 ||r(i)||/||b|| 7.871410638815e-07
> 55 KSP preconditioned resid norm 3.162241186775e-07 true resid norm 3.587463976088e-02 ||r(i)||/||b|| 5.343321521721e-07
> 56 KSP preconditioned resid norm 3.171835200858e-07 true resid norm 4.396913730536e-02 ||r(i)||/||b|| 6.548950434660e-07
> 57 KSP preconditioned resid norm 2.173392548323e-07 true resid norm 1.845471373372e-02 ||r(i)||/||b|| 2.748723603299e-07
> 58 KSP preconditioned resid norm 1.842063440560e-07 true resid norm 1.135583609373e-02 ||r(i)||/||b|| 1.691386556109e-07
> 59 KSP preconditioned resid norm 1.562305233760e-07 true resid norm 7.915226925674e-03 ||r(i)||/||b|| 1.178927584031e-07
> 60 KSP preconditioned resid norm 1.395168870151e-07 true resid norm 7.381518126662e-03 ||r(i)||/||b|| 1.099434724141e-07
> 61 KSP preconditioned resid norm 1.323458776323e-07 true resid norm 1.236767010915e-02 ||r(i)||/||b|| 1.842093420541e-07
> 62 KSP preconditioned resid norm 1.210573318494e-07 true resid norm 1.246351751392e-02 ||r(i)||/||b|| 1.856369340916e-07
> 63 KSP preconditioned resid norm 1.518242462597e-07 true resid norm 2.453397483619e-02 ||r(i)||/||b|| 3.654194624097e-07
> 64 KSP preconditioned resid norm 1.723839793842e-07 true resid norm 3.078519652295e-02 ||r(i)||/||b|| 4.585278186149e-07
> 65 KSP preconditioned resid norm 6.991080261238e-07 true resid norm 1.418507987285e-01 ||r(i)||/||b|| 2.112786165301e-06
> 66 KSP preconditioned resid norm 1.030788328966e-05 true resid norm 2.103063209272e+00 ||r(i)||/||b|| 3.132391846314e-05
> 67 KSP preconditioned resid norm 1.229992774455e-07 true resid norm 2.097942598994e-02 ||r(i)||/||b|| 3.124764991443e-07
> 68 KSP preconditioned resid norm 6.581561333514e-08 true resid norm 3.405626207360e-03 ||r(i)||/||b|| 5.072484610304e-08
> 69 KSP preconditioned resid norm 6.343808367654e-08 true resid norm 2.730918192381e-03 ||r(i)||/||b|| 4.067545778488e-08
> 70 KSP preconditioned resid norm 6.319435025925e-08 true resid norm 2.718071769813e-03 ||r(i)||/||b|| 4.048411769995e-08
> 71 KSP preconditioned resid norm 6.446816119437e-08 true resid norm 2.784759189575e-03 ||r(i)||/||b|| 4.147738851080e-08
> 72 KSP preconditioned resid norm 6.716418150551e-08 true resid norm 2.909287512040e-03 ||r(i)||/||b|| 4.333216634250e-08
> 73 KSP preconditioned resid norm 7.131730758571e-08 true resid norm 3.126610397256e-03 ||r(i)||/||b|| 4.656906588345e-08
> 74 KSP preconditioned resid norm 7.792929027648e-08 true resid norm 3.511383015577e-03 ||r(i)||/||b|| 5.230003301273e-08
> 75 KSP preconditioned resid norm 9.337691950640e-08 true resid norm 6.318359239434e-03 ||r(i)||/||b|| 9.410833148728e-08
> 76 KSP preconditioned resid norm 1.479957854534e-07 true resid norm 1.818912212739e-02 ||r(i)||/||b|| 2.709165259144e-07
> 77 KSP preconditioned resid norm 6.682161192641e-07 true resid norm 1.212127978501e-01 ||r(i)||/||b|| 1.805394997071e-06
> 78 KSP preconditioned resid norm 5.663368166860e-05 true resid norm 1.075143624402e+01 ||r(i)||/||b|| 1.601364670279e-04
> 79 KSP preconditioned resid norm 8.776500145772e-07 true resid norm 1.663312859850e-01 ||r(i)||/||b|| 2.477408960935e-06
> 80 KSP preconditioned resid norm 1.630840126402e-07 true resid norm 2.931897201954e-02 ||r(i)||/||b|| 4.366892468635e-07
> 81 KSP preconditioned resid norm 5.046755275791e-08 true resid norm 7.225871257706e-03 ||r(i)||/||b|| 1.076252017075e-07
> 82 KSP preconditioned resid norm 2.756629667916e-08 true resid norm 2.674186926924e-03 ||r(i)||/||b|| 3.983047817339e-08
> 83 KSP preconditioned resid norm 1.948064945258e-08 true resid norm 1.002338825836e-03 ||r(i)||/||b|| 1.492926104859e-08
> 84 KSP preconditioned resid norm 1.686033880678e-08 true resid norm 7.336515948282e-04 ||r(i)||/||b|| 1.092731908173e-08
> 85 KSP preconditioned resid norm 1.627099807112e-08 true resid norm 7.004183219758e-04 ||r(i)||/||b|| 1.043232857241e-08
> 86 KSP preconditioned resid norm 1.815047764168e-08 true resid norm 8.235488547093e-04 ||r(i)||/||b|| 1.226628712898e-08
> 87 KSP preconditioned resid norm 2.850439847332e-08 true resid norm 2.214968823226e-03 ||r(i)||/||b|| 3.299068830231e-08
> 88 KSP preconditioned resid norm 1.519490344670e-07 true resid norm 1.992168037360e-02 ||r(i)||/||b|| 2.967219857778e-07
> 89 KSP preconditioned resid norm 6.189262765590e-07 true resid norm 1.040718853983e-01 ||r(i)||/||b|| 1.550090952164e-06
> 90 KSP preconditioned resid norm 5.042710252729e-08 true resid norm 8.652148341175e-03 ||r(i)||/||b|| 1.288687795855e-07
> 91 KSP preconditioned resid norm 2.122997506948e-08 true resid norm 3.738624152724e-03 ||r(i)||/||b|| 5.568465921898e-08
> 92 KSP preconditioned resid norm 1.416290557086e-08 true resid norm 2.531358077791e-03 ||r(i)||/||b|| 3.770312450912e-08
> 93 KSP preconditioned resid norm 1.113840681888e-08 true resid norm 2.004079623183e-03 ||r(i)||/||b|| 2.984961480637e-08
> 94 KSP preconditioned resid norm 5.052832639519e-08 true resid norm 9.596273544776e-03 ||r(i)||/||b|| 1.429309821699e-07
> 95 KSP preconditioned resid norm 3.103683240415e-09 true resid norm 1.340636499506e-04 ||r(i)||/||b|| 1.996801057338e-09
> 96 KSP preconditioned resid norm 3.429857119447e-09 true resid norm 2.674501337153e-04 ||r(i)||/||b|| 3.983516113316e-09
> 97 KSP preconditioned resid norm 5.170276146377e-09 true resid norm 6.719440839436e-04 ||r(i)||/||b|| 1.000822115305e-08
> 98 KSP preconditioned resid norm 1.148497437573e-08 true resid norm 1.829675810596e-03 ||r(i)||/||b|| 2.725197019872e-08
> 99 KSP preconditioned resid norm 6.490313757291e-08 true resid norm 1.133744740971e-02 ||r(i)||/||b|| 1.688647667252e-07
> 100 KSP preconditioned resid norm 1.033700268099e-06 true resid norm 1.744999476835e-01 ||r(i)||/||b|| 2.599076484702e-06
> 101 KSP preconditioned resid norm 2.023863503132e-08 true resid norm 3.274357033310e-03 ||r(i)||/||b|| 4.876966715905e-08
> 102 KSP preconditioned resid norm 4.803328753117e-09 true resid norm 6.927971746924e-04 ||r(i)||/||b|| 1.031881596135e-08
> 103 KSP preconditioned resid norm 1.962342036005e-09 true resid norm 1.445569202511e-04 ||r(i)||/||b|| 2.153092290934e-09
> 104 KSP preconditioned resid norm 1.498768208313e-09 true resid norm 6.802150842044e-05 ||r(i)||/||b|| 1.013141295092e-09
> 105 KSP preconditioned resid norm 1.395549026495e-09 true resid norm 6.005884495747e-05 ||r(i)||/||b|| 8.945419967142e-10
> 106 KSP preconditioned resid norm 1.457410891473e-09 true resid norm 6.410049873543e-05 ||r(i)||/||b|| 9.547401081351e-10
> 107 KSP preconditioned resid norm 1.780342425895e-09 true resid norm 1.209740535326e-04 ||r(i)||/||b|| 1.801839037603e-09
> 108 KSP preconditioned resid norm 3.312859958719e-09 true resid norm 4.525233578504e-04 ||r(i)||/||b|| 6.740075477275e-09
> 109 KSP preconditioned resid norm 9.207121903791e-09 true resid norm 1.584434833387e-03 ||r(i)||/||b|| 2.359924671420e-08
> 110 KSP preconditioned resid norm 8.739767895565e-08 true resid norm 1.687246640666e-02 ||r(i)||/||b|| 2.513056952659e-07
> 111 KSP preconditioned resid norm 1.156065363139e-06 true resid norm 2.263019811534e-01 ||r(i)||/||b|| 3.370638017177e-06
> 112 KSP preconditioned resid norm 7.306873252299e-08 true resid norm 1.428339270295e-02 ||r(i)||/||b|| 2.127429296617e-07
> 113 KSP preconditioned resid norm 3.669015190800e-08 true resid norm 7.144007229935e-03 ||r(i)||/||b|| 1.064058840381e-07
> 114 KSP preconditioned resid norm 2.027376209045e-08 true resid norm 3.927954323325e-03 ||r(i)||/||b|| 5.850462335527e-08
> 115 KSP preconditioned resid norm 1.150536971084e-08 true resid norm 2.217667544765e-03 ||r(i)||/||b|| 3.303088420943e-08
> 116 KSP preconditioned resid norm 4.817493968709e-09 true resid norm 9.229121300958e-04 ||r(i)||/||b|| 1.374624603973e-08
> 117 KSP preconditioned resid norm 1.318062597149e-09 true resid norm 2.502759879830e-04 ||r(i)||/||b|| 3.727717077784e-09
> 118 KSP preconditioned resid norm 2.565229681360e-10 true resid norm 4.554155253246e-05 ||r(i)||/||b|| 6.783152650489e-10
> 119 KSP preconditioned resid norm 1.220621552659e-10 true resid norm 1.887267706055e-05 ||r(i)||/||b|| 2.810976839972e-10
> 120 KSP preconditioned resid norm 3.007389263037e-10 true resid norm 5.965755276433e-05 ||r(i)||/||b|| 8.885649800071e-10
> 121 KSP preconditioned resid norm 7.687988210487e-10 true resid norm 1.555121445636e-04 ||r(i)||/||b|| 2.316264064181e-09
> 122 KSP preconditioned resid norm 3.818221035410e-09 true resid norm 7.723490689110e-04 ||r(i)||/||b|| 1.150369572963e-08
> 123 KSP preconditioned resid norm 1.126628704389e-07 true resid norm 2.277477391889e-02 ||r(i)||/||b|| 3.392171752645e-07
> 124 KSP preconditioned resid norm 2.091915962841e-09 true resid norm 4.232853495368e-04 ||r(i)||/||b|| 6.304592138305e-09
> 125 KSP preconditioned resid norm 6.498729874824e-10 true resid norm 1.317063018752e-04 ||r(i)||/||b|| 1.961689711860e-09
> 126 KSP preconditioned resid norm 2.326148226133e-10 true resid norm 4.710921144409e-05 ||r(i)||/||b|| 7.016646440449e-10
> 127 KSP preconditioned resid norm 6.419933487001e-11 true resid norm 1.192761364491e-05 ||r(i)||/||b|| 1.776549537959e-10
> 128 KSP preconditioned resid norm 3.990889550665e-11 true resid norm 4.736495989458e-06 ||r(i)||/||b|| 7.054738703082e-11
> 129 KSP preconditioned resid norm 1.449761398531e-10 true resid norm 2.794402799777e-05 ||r(i)||/||b|| 4.162102454528e-10
> 130 KSP preconditioned resid norm 1.621600598079e-10 true resid norm 3.151012544337e-05 ||r(i)||/||b|| 4.693252184718e-10
> 131 KSP preconditioned resid norm 8.656752727415e-11 true resid norm 1.541111379317e-05 ||r(i)||/||b|| 2.295396875164e-10
> 132 KSP preconditioned resid norm 5.162222539791e-11 true resid norm 7.009942258504e-06 ||r(i)||/||b|| 1.044090632981e-10
> 133 KSP preconditioned resid norm 3.781167023504e-11 true resid norm 3.012802382737e-06 ||r(i)||/||b|| 4.487396088066e-11
> 134 KSP preconditioned resid norm 3.198899307844e-11 true resid norm 1.735828409010e-06 ||r(i)||/||b|| 2.585416705979e-11
> 135 KSP preconditioned resid norm 2.800813815582e-11 true resid norm 1.267385630623e-06 ||r(i)||/||b|| 1.887698095805e-11
> 136 KSP preconditioned resid norm 2.478323040026e-11 true resid norm 1.093735119127e-06 ||r(i)||/||b|| 1.629055633743e-11
> 137 KSP preconditioned resid norm 2.094802859126e-11 true resid norm 9.461872584172e-07 ||r(i)||/||b|| 1.409291570641e-11
> 138 KSP preconditioned resid norm 1.475156452329e-11 true resid norm 1.291911076055e-06 ||r(i)||/||b|| 1.924227337987e-11
> 139 KSP preconditioned resid norm 2.079412078050e-10 true resid norm 3.438188849064e-05 ||r(i)||/||b|| 5.120984794664e-10
> 140 KSP preconditioned resid norm 1.776813945343e-10 true resid norm 1.130664701479e-05 ||r(i)||/||b|| 1.684060125352e-10
> 141 KSP preconditioned resid norm 9.791545045192e-11 true resid norm 4.353141785980e-06 ||r(i)||/||b|| 6.483754637586e-11
> 142 KSP preconditioned resid norm 9.022678471638e-11 true resid norm 3.899337928100e-06 ||r(i)||/||b|| 5.807839858618e-11
> 143 KSP preconditioned resid norm 9.321246955436e-11 true resid norm 4.122786827556e-06 ||r(i)||/||b|| 6.140654159035e-11
> 144 KSP preconditioned resid norm 1.010522679933e-10 true resid norm 6.735251544406e-06 ||r(i)||/||b|| 1.003177028991e-10
> 145 KSP preconditioned resid norm 1.190099575669e-10 true resid norm 1.412264052735e-05 ||r(i)||/||b|| 2.103486183452e-10
> 146 KSP preconditioned resid norm 1.559766947287e-10 true resid norm 2.516382044354e-05 ||r(i)||/||b|| 3.748006509360e-10
> 147 KSP preconditioned resid norm 1.549935482860e-10 true resid norm 2.591211842556e-05 ||r(i)||/||b|| 3.859461195417e-10
> 148 KSP preconditioned resid norm 1.144296191694e-10 true resid norm 1.784161868459e-05 ||r(i)||/||b|| 2.657406617465e-10
> 149 KSP preconditioned resid norm 6.371964918270e-11 true resid norm 6.643697384486e-06 ||r(i)||/||b|| 9.895405627750e-11
> 150 KSP preconditioned resid norm 4.845064670450e-11 true resid norm 2.593417735211e-06 ||r(i)||/||b|| 3.862746745817e-11
> 151 KSP preconditioned resid norm 4.470906007756e-11 true resid norm 1.934674135353e-06 ||r(i)||/||b|| 2.881585993297e-11
> 152 KSP preconditioned resid norm 5.319998529107e-11 true resid norm 3.264222737453e-06 ||r(i)||/||b|| 4.861872264358e-11
> 153 KSP preconditioned resid norm 2.352067006596e-10 true resid norm 2.492527941922e-05 ||r(i)||/||b|| 3.712477194012e-10
> 154 KSP preconditioned resid norm 3.473141928722e-09 true resid norm 3.763914613551e-04 ||r(i)||/||b|| 5.606134610567e-09
> 155 KSP preconditioned resid norm 1.833222104680e-08 true resid norm 1.977164847191e-03 ||r(i)||/||b|| 2.944873467832e-08
> 156 KSP preconditioned resid norm 1.545363805860e-09 true resid norm 1.660725936026e-04 ||r(i)||/||b|| 2.473555886497e-09
> 157 KSP preconditioned resid norm 5.975372365436e-10 true resid norm 6.408112870416e-05 ||r(i)||/||b|| 9.544516026460e-10
> 158 KSP preconditioned resid norm 2.271151314350e-10 true resid norm 2.430517352175e-05 ||r(i)||/||b|| 3.620115982588e-10
> 159 KSP preconditioned resid norm 9.284094104344e-11 true resid norm 9.904055955270e-06 ||r(i)||/||b|| 1.475152243782e-10
> 160 KSP preconditioned resid norm 2.941687346568e-11 true resid norm 3.088975114702e-06 ||r(i)||/||b|| 4.600850996823e-11
> 161 KSP preconditioned resid norm 6.416123537136e-12 true resid norm 6.096752141640e-07 ||r(i)||/||b|| 9.080762106091e-12
> 162 KSP preconditioned resid norm 4.077333656404e-12 true resid norm 5.049107356604e-07 ||r(i)||/||b|| 7.520355377462e-12
> 163 KSP preconditioned resid norm 5.087791292533e-12 true resid norm 7.009318964057e-07 ||r(i)||/||b|| 1.043997796853e-11
> 164 KSP preconditioned resid norm 7.749563397094e-12 true resid norm 9.156004927546e-07 ||r(i)||/||b|| 1.363734340148e-11
> 165 KSP preconditioned resid norm 1.052344064381e-11 true resid norm 1.169820734369e-06 ||r(i)||/||b|| 1.742380787145e-11
> 166 KSP preconditioned resid norm 1.104395410109e-11 true resid norm 1.200080231537e-06 ||r(i)||/||b|| 1.787450570014e-11
> 167 KSP preconditioned resid norm 1.007023895764e-11 true resid norm 1.084060757795e-06 ||r(i)||/||b|| 1.614646228252e-11
> 168 KSP preconditioned resid norm 8.344424405547e-12 true resid norm 8.950906940095e-07 ||r(i)||/||b|| 1.333186173038e-11
> 169 KSP preconditioned resid norm 5.763569089910e-12 true resid norm 6.172251688691e-07 ||r(i)||/||b|| 9.193214344588e-12
> 170 KSP preconditioned resid norm 3.424168629795e-12 true resid norm 3.659829134192e-07 ||r(i)||/||b|| 5.451105267927e-12
> 171 KSP preconditioned resid norm 9.348832909193e-13 true resid norm 9.664575613677e-08 ||r(i)||/||b|| 1.439483022522e-12
> 172 KSP preconditioned resid norm 3.482816687679e-13 true resid norm 2.647798359576e-08 ||r(i)||/||b|| 3.943743562083e-13
> 173 KSP preconditioned resid norm 1.008488994165e-11 true resid norm 1.080536439819e-06 ||r(i)||/||b|| 1.609396959070e-11
> 174 KSP preconditioned resid norm 9.378977735316e-11 true resid norm 1.005208011236e-05 ||r(i)||/||b|| 1.497199591702e-10
> 175 KSP preconditioned resid norm 8.737224485597e-10 true resid norm 9.364289005956e-05 ||r(i)||/||b|| 1.394757057204e-09
> 176 KSP preconditioned resid norm 1.536767823776e-08 true resid norm 1.647058907589e-03 ||r(i)||/||b|| 2.453199632700e-08
> 177 KSP preconditioned resid norm 1.839952929174e-07 true resid norm 1.972001883268e-02 ||r(i)||/||b|| 2.937183529640e-07
> 178 KSP preconditioned resid norm 4.438575380976e-08 true resid norm 4.757119581523e-03 ||r(i)||/||b|| 7.085456358805e-08
> 179 KSP preconditioned resid norm 4.796782862052e-07 true resid norm 5.141033952542e-02 ||r(i)||/||b|| 7.657274761676e-07
> 180 KSP preconditioned resid norm 9.921079426648e-09 true resid norm 1.063308787741e-03 ||r(i)||/||b|| 1.583737360889e-08
> 181 KSP preconditioned resid norm 2.536576210124e-10 true resid norm 2.718624644920e-05 ||r(i)||/||b|| 4.049235245709e-10
> 182 KSP preconditioned resid norm 1.047157364780e-11 true resid norm 1.122313966041e-06 ||r(i)||/||b|| 1.671622184598e-11
> 183 KSP preconditioned resid norm 1.244906673812e-10 true resid norm 1.334248080723e-05 ||r(i)||/||b|| 1.987285874524e-10
> 184 KSP preconditioned resid norm 1.959956371324e-10 true resid norm 2.100614044675e-05 ||r(i)||/||b|| 3.128743956332e-10
> 185 KSP preconditioned resid norm 2.704883349749e-10 true resid norm 2.899001474168e-05 ||r(i)||/||b|| 4.317896171690e-10
> 186 KSP preconditioned resid norm 3.521080224859e-10 true resid norm 3.773773546731e-05 ||r(i)||/||b|| 5.620818925224e-10
> 187 KSP preconditioned resid norm 5.585664451775e-10 true resid norm 5.986524496711e-05 ||r(i)||/||b|| 8.916584360652e-10
> 188 KSP preconditioned resid norm 8.373951317446e-10 true resid norm 8.974914849925e-05 ||r(i)||/||b|| 1.336762013302e-09
> 189 KSP preconditioned resid norm 1.025188904578e-09 true resid norm 1.098762320723e-04 ||r(i)||/||b|| 1.636543361747e-09
> 190 KSP preconditioned resid norm 8.804939847806e-10 true resid norm 9.436831188889e-05 ||r(i)||/||b|| 1.405561798656e-09
> 191 KSP preconditioned resid norm 3.943144046396e-10 true resid norm 4.226124296393e-05 ||r(i)||/||b|| 6.294569382969e-10
> 192 KSP preconditioned resid norm 5.355541541046e-11 true resid norm 5.739853081002e-06 ||r(i)||/||b|| 8.549181456224e-11
> 193 KSP preconditioned resid norm 1.299526839866e-09 true resid norm 1.392788189132e-04 ||r(i)||/||b|| 2.074478003345e-09
> 194 KSP preconditioned resid norm 2.882900653170e-08 true resid norm 3.089794419764e-03 ||r(i)||/||b|| 4.602071304651e-08
> 195 KSP preconditioned resid norm 3.502493774106e-09 true resid norm 3.753853139688e-04 ||r(i)||/||b|| 5.591148623198e-09
> 196 KSP preconditioned resid norm 2.001525286264e-10 true resid norm 2.145165783125e-05 ||r(i)||/||b|| 3.195101211617e-10
> 197 KSP preconditioned resid norm 1.647406102516e-10 true resid norm 1.765632792834e-05 ||r(i)||/||b|| 2.629808623666e-10
> 198 KSP preconditioned resid norm 2.535219507377e-10 true resid norm 2.717160853620e-05 ||r(i)||/||b|| 4.047055012650e-10
> 199 KSP preconditioned resid norm 3.552020174756e-10 true resid norm 3.806933251915e-05 ||r(i)||/||b|| 5.670208401339e-10
> 200 KSP preconditioned resid norm 3.473561803799e-10 true resid norm 3.722844483670e-05 ||r(i)||/||b|| 5.544963011256e-10
> 201 KSP preconditioned resid norm 3.040362870159e-10 true resid norm 3.258556793500e-05 ||r(i)||/||b|| 4.853433166302e-10
> 202 KSP preconditioned resid norm 2.238603169023e-10 true resid norm 2.399258218026e-05 ||r(i)||/||b|| 3.573557297856e-10
> 203 KSP preconditioned resid norm 2.794466174289e-10 true resid norm 2.995013150895e-05 ||r(i)||/||b|| 4.460900049084e-10
> 204 KSP preconditioned resid norm 5.892481453566e-10 true resid norm 6.315359820006e-05 ||r(i)||/||b|| 9.406365685783e-10
> 205 KSP preconditioned resid norm 1.796869246546e-09 true resid norm 1.925822916338e-04 ||r(i)||/||b|| 2.868402611004e-09
> 206 KSP preconditioned resid norm 5.383703166757e-09 true resid norm 5.770068661128e-04 ||r(i)||/||b|| 8.594185827181e-09
> 207 KSP preconditioned resid norm 1.513140030683e-08 true resid norm 1.621731659303e-03 ||r(i)||/||b|| 2.415476151223e-08
> 208 KSP preconditioned resid norm 2.664830499802e-08 true resid norm 2.856074057521e-03 ||r(i)||/||b|| 4.253958250426e-08
> 209 KSP preconditioned resid norm 1.744796115928e-08 true resid norm 1.870012714072e-03 ||r(i)||/||b|| 2.785276520572e-08
> 210 KSP preconditioned resid norm 1.709105056825e-09 true resid norm 1.831760214160e-04 ||r(i)||/||b|| 2.728301619248e-09
> 211 KSP preconditioned resid norm 5.824652325203e-09 true resid norm 6.242662821250e-04 ||r(i)||/||b|| 9.298087681987e-09
> 212 KSP preconditioned resid norm 1.112672284142e-07 true resid norm 1.192524045420e-02 ||r(i)||/||b|| 1.776196064834e-07
> 213 KSP preconditioned resid norm 1.643443975106e-06 true resid norm 1.761386966729e-01 ||r(i)||/||b|| 2.623484709571e-06
> 214 KSP preconditioned resid norm 7.564685658242e-08 true resid norm 8.107571011682e-03 ||r(i)||/||b|| 1.207576130781e-07
> 215 KSP preconditioned resid norm 2.392757332232e-08 true resid norm 2.564475361971e-03 ||r(i)||/||b|| 3.819638743380e-08
> 216 KSP preconditioned resid norm 1.178197751769e-08 true resid norm 1.262752000134e-03 ||r(i)||/||b|| 1.880796569355e-08
> 217 KSP preconditioned resid norm 6.804809693774e-09 true resid norm 7.293161986200e-04 ||r(i)||/||b|| 1.086274584554e-08
> 218 KSP preconditioned resid norm 4.979204750271e-09 true resid norm 5.336541131997e-04 ||r(i)||/||b|| 7.948471475175e-09
> 219 KSP preconditioned resid norm 4.201414891575e-09 true resid norm 4.502932602210e-04 ||r(i)||/||b|| 6.706859454096e-09
> 220 KSP preconditioned resid norm 2.892374518861e-09 true resid norm 3.099947965425e-04 ||r(i)||/||b|| 4.617194427674e-09
> 221 KSP preconditioned resid norm 7.824978176254e-10 true resid norm 8.386543747579e-05 ||r(i)||/||b|| 1.249127517321e-09
> 222 KSP preconditioned resid norm 4.025045270489e-12 true resid norm 4.313920255055e-07 ||r(i)||/||b|| 6.425336420232e-12
> 223 KSP preconditioned resid norm 7.270310185183e-10 true resid norm 7.792069485626e-05 ||r(i)||/||b|| 1.160583990775e-09
> 224 KSP preconditioned resid norm 2.285667940369e-09 true resid norm 2.449700616763e-04 ||r(i)||/||b|| 3.648688353269e-09
> 225 KSP preconditioned resid norm 4.666494852894e-09 true resid norm 5.001389357709e-04 ||r(i)||/||b|| 7.449282159120e-09
> 226 KSP preconditioned resid norm 7.718252461926e-09 true resid norm 8.272158639732e-04 ||r(i)||/||b|| 1.232090512557e-08
> 227 KSP preconditioned resid norm 9.133913525747e-09 true resid norm 9.789415681285e-04 ||r(i)||/||b|| 1.458077233487e-08
> 228 KSP preconditioned resid norm 9.380662429943e-09 true resid norm 1.005387270614e-03 ||r(i)||/||b|| 1.497466588249e-08
> 229 KSP preconditioned resid norm 7.153889400651e-09 true resid norm 7.667293640037e-04 ||r(i)||/||b|| 1.141999345310e-08
> 230 KSP preconditioned resid norm 3.686222155648e-09 true resid norm 3.950766653994e-04 ||r(i)||/||b|| 5.884439991676e-09
> 231 KSP preconditioned resid norm 1.553980021933e-09 true resid norm 1.665502564985e-04 ||r(i)||/||b|| 2.480670400953e-09
> 232 KSP preconditioned resid norm 4.135131754480e-10 true resid norm 4.431892592037e-05 ||r(i)||/||b|| 6.601049439614e-10
> 233 KSP preconditioned resid norm 3.408443088536e-11 true resid norm 3.653052704994e-06 ||r(i)||/||b|| 5.441012165888e-11
> 234 KSP preconditioned resid norm 7.336512309518e-11 true resid norm 7.863022750472e-06 ||r(i)||/||b|| 1.171152072005e-10
> 235 KSP preconditioned resid norm 1.711388154684e-09 true resid norm 1.834207210137e-04 ||r(i)||/||b|| 2.731946279196e-09
> 236 KSP preconditioned resid norm 1.159702499545e-07 true resid norm 1.242929419260e-02 ||r(i)||/||b|| 1.851271973790e-07
> 237 KSP preconditioned resid norm 3.857597718932e-09 true resid norm 4.134441113034e-04 ||r(i)||/||b|| 6.158012547810e-09
> 238 KSP preconditioned resid norm 1.645996729438e-09 true resid norm 1.764122920283e-04 ||r(i)||/||b|| 2.627559755231e-09
> 239 KSP preconditioned resid norm 3.308806112000e-12 true resid norm 3.546274450365e-07 ||r(i)||/||b|| 5.281972089161e-12
> 240 KSP preconditioned resid norm 7.382914922234e-08 true resid norm 7.912755349202e-03 ||r(i)||/||b|| 1.178559456912e-07
> 241 KSP preconditioned resid norm 1.809365457089e-08 true resid norm 1.939215926278e-03 ||r(i)||/||b|| 2.888350729990e-08
> 242 KSP preconditioned resid norm 6.669136386139e-09 true resid norm 7.147751961904e-04 ||r(i)||/||b|| 1.064616596697e-08
> 243 KSP preconditioned resid norm 9.709051870072e-10 true resid norm 1.040582926825e-04 ||r(i)||/||b|| 1.549888496470e-09
> 244 KSP preconditioned resid norm 1.658711636824e-07 true resid norm 1.777750321545e-02 ||r(i)||/||b|| 2.647856986628e-07
> 245 KSP preconditioned resid norm 4.372029935281e-05 true resid norm 4.685791942789e+00 ||r(i)||/||b|| 6.979217938105e-05
> 246 KSP preconditioned resid norm 1.108728206741e-06 true resid norm 1.188296918090e-01 ||r(i)||/||b|| 1.769900001491e-06
> 247 KSP preconditioned resid norm 6.312367692314e-07 true resid norm 6.765379494300e-02 ||r(i)||/||b|| 1.007664414067e-06
> 248 KSP preconditioned resid norm 4.356226723159e-07 true resid norm 4.668854601307e-02 ||r(i)||/||b|| 6.953990740879e-07
> 249 KSP preconditioned resid norm 2.372265656235e-07 true resid norm 2.542513080365e-02 ||r(i)||/||b|| 3.786927186482e-07
> 250 KSP preconditioned resid norm 8.566943433538e-08 true resid norm 9.181756554699e-03 ||r(i)||/||b|| 1.367569897090e-07
> 251 KSP preconditioned resid norm 2.811298063268e-08 true resid norm 3.013052977489e-03 ||r(i)||/||b|| 4.487769334555e-08
> 252 KSP preconditioned resid norm 9.927933000520e-09 true resid norm 1.064041855973e-03 ||r(i)||/||b|| 1.584829223911e-08
> 253 KSP preconditioned resid norm 5.465425608817e-09 true resid norm 5.857655977788e-04 ||r(i)||/||b|| 8.724642104167e-09
> 254 KSP preconditioned resid norm 2.802709112126e-09 true resid norm 3.003847634638e-04 ||r(i)||/||b|| 4.474058505150e-09
> 255 KSP preconditioned resid norm 8.749035597488e-10 true resid norm 9.376916709178e-05 ||r(i)||/||b|| 1.396637881063e-09
> 256 KSP preconditioned resid norm 2.525241256290e-12 true resid norm 2.706479113805e-07 ||r(i)||/||b|| 4.031145174775e-12
> 257 KSP preconditioned resid norm 1.954487205473e-10 true resid norm 2.094752459268e-05 ||r(i)||/||b|| 3.120013461568e-10
> 258 KSP preconditioned resid norm 3.558554122752e-10 true resid norm 3.813936440469e-05 ||r(i)||/||b|| 5.680639248413e-10
> 259 KSP preconditioned resid norm 3.327616628106e-10 true resid norm 3.566425546219e-05 ||r(i)||/||b|| 5.311985988919e-10
> 260 KSP preconditioned resid norm 3.138738006439e-10 true resid norm 3.363991905729e-05 ||r(i)||/||b|| 5.010472709577e-10
> 261 KSP preconditioned resid norm 5.105712063176e-10 true resid norm 5.472127327668e-05 ||r(i)||/||b|| 8.150419325301e-10
> 262 KSP preconditioned resid norm 1.562664105193e-09 true resid norm 1.674809867731e-04 ||r(i)||/||b|| 2.494533093765e-09
> 263 KSP preconditioned resid norm 2.160588142357e-09 true resid norm 2.315644371948e-04 ||r(i)||/||b|| 3.449019277059e-09
> 264 KSP preconditioned resid norm 2.958294939588e-08 true resid norm 3.170599194897e-03 ||r(i)||/||b|| 4.722425375632e-08
> 265 KSP preconditioned resid norm 4.249142745113e-09 true resid norm 4.554085662232e-04 ||r(i)||/||b|| 6.783048998670e-09
> 266 KSP preconditioned resid norm 3.648294184577e-10 true resid norm 3.910116757905e-05 ||r(i)||/||b|| 5.823894306457e-10
> 267 KSP preconditioned resid norm 4.149339357988e-08 true resid norm 4.447119809209e-03 ||r(i)||/||b|| 6.623729504912e-08
> 268 KSP preconditioned resid norm 3.843343031428e-06 true resid norm 4.119163426746e-01 ||r(i)||/||b|| 6.135257311663e-06
> 269 KSP preconditioned resid norm 6.080537781060e-08 true resid norm 6.516912135594e-03 ||r(i)||/||b|| 9.706566282308e-08
> 270 KSP preconditioned resid norm 4.757307440420e-09 true resid norm 5.098719177265e-04 ||r(i)||/||b|| 7.594249334542e-09
> 271 KSP preconditioned resid norm 5.436376140969e-06 true resid norm 5.826521752233e-01 ||r(i)||/||b|| 8.678269463611e-06
> 272 KSP preconditioned resid norm 6.392279306681e-10 true resid norm 6.851026028837e-05 ||r(i)||/||b|| 1.020420973416e-09
> 273 KSP preconditioned resid norm 2.599896339650e-06 true resid norm 2.786479850495e-01 ||r(i)||/||b|| 4.150301676682e-06
> 274 KSP preconditioned resid norm 6.217134530094e-04 true resid norm 6.663311852755e+01 ||r(i)||/||b|| 9.924620251545e-04
> 275 KSP preconditioned resid norm 1.906648612009e-06 true resid norm 2.043480679715e-01 ||r(i)||/||b|| 3.043647091072e-06
> 276 KSP preconditioned resid norm 8.789054443529e-06 true resid norm 9.419807527825e-01 ||r(i)||/||b|| 1.403026222128e-05
> 277 KSP preconditioned resid norm 2.890658496307e-05 true resid norm 3.098108771408e+00 ||r(i)||/||b|| 4.614455053833e-05
> 278 KSP preconditioned resid norm 2.700565878072e-05 true resid norm 2.894374013848e+00 ||r(i)||/||b|| 4.311003835354e-05
> 279 KSP preconditioned resid norm 2.127015678842e-05 true resid norm 2.279662554372e+00 ||r(i)||/||b|| 3.395426426643e-05
> 280 KSP preconditioned resid norm 6.022114971533e-04 true resid norm 6.454296569280e+01 ||r(i)||/||b|| 9.613303993039e-04
> 281 KSP preconditioned resid norm 4.191696888290e-04 true resid norm 4.492517159409e+01 ||r(i)||/||b|| 6.691346250326e-04
> 282 KSP preconditioned resid norm 2.128575355843e-02 true resid norm 2.281334162770e+03 ||r(i)||/||b|| 3.397916191332e-02
> 283 KSP preconditioned resid norm 5.566202222495e-03 true resid norm 5.965664899852e+02 ||r(i)||/||b|| 8.885515189345e-03
> 284 KSP preconditioned resid norm 1.253993707281e-01 true resid norm 1.343987506229e+04 ||r(i)||/||b|| 2.001792189364e-01
> 285 KSP preconditioned resid norm 1.655806619282e-02 true resid norm 1.774636823235e+03 ||r(i)||/||b|| 2.643219609740e-02
> 286 KSP preconditioned resid norm 1.065113628903e-01 true resid norm 1.141552307358e+04 ||r(i)||/||b|| 1.700276588903e-01
> 287 KSP preconditioned resid norm 6.805321243488e+00 true resid norm 7.293710226785e+05 ||r(i)||/||b|| 1.086356241840e+01
> 288 KSP preconditioned resid norm 1.283123255580e-01 true resid norm 1.375207558409e+04 ||r(i)||/||b|| 2.048292663748e-01
> 289 KSP preconditioned resid norm 1.145625946046e+00 true resid norm 1.227842651328e+05 ||r(i)||/||b|| 1.828801099567e+00
> 290 KSP preconditioned resid norm 4.728734309042e+00 true resid norm 5.068095473462e+05 ||r(i)||/||b|| 7.548637086810e+00
> 291 KSP preconditioned resid norm 1.345611312328e+00 true resid norm 1.442180117418e+05 ||r(i)||/||b|| 2.148044443362e+00
> 292 KSP preconditioned resid norm 2.067182052275e+02 true resid norm 2.215534922722e+07 ||r(i)||/||b|| 3.299912002912e+02
> 293 KSP preconditioned resid norm 2.819056223629e-01 true resid norm 3.021367907919e+04 ||r(i)||/||b|| 4.500153945805e-01
> 294 KSP preconditioned resid norm 2.473762204291e+00 true resid norm 2.651293604299e+05 ||r(i)||/||b|| 3.948949528325e+00
> 295 KSP preconditioned resid norm 8.824314765228e-02 true resid norm 9.457598332934e+03 ||r(i)||/||b|| 1.408654945471e-01
> 296 KSP preconditioned resid norm 3.547759169453e-03 true resid norm 3.802366767064e+02 ||r(i)||/||b|| 5.663406884461e-03
> 297 KSP preconditioned resid norm 6.629254109013e-04 true resid norm 7.105007502579e+01 ||r(i)||/||b|| 1.058250055013e-03
> 298 KSP preconditioned resid norm 8.335816942804e-03 true resid norm 8.934043097547e+02 ||r(i)||/||b|| 1.330674400560e-02
> 299 KSP preconditioned resid norm 2.280133581537e-03 true resid norm 2.443769078227e+02 ||r(i)||/||b|| 3.639853667338e-03
> 300 KSP preconditioned resid norm 3.042948047775e-02 true resid norm 3.261327492118e+03 ||r(i)||/||b|| 4.857559962741e-02
> 301 KSP preconditioned resid norm 3.641340291287e-03 true resid norm 3.902663808886e+02 ||r(i)||/||b|| 5.812793567005e-03
> 302 KSP preconditioned resid norm 5.262062292809e-03 true resid norm 5.639698140863e+02 ||r(i)||/||b|| 8.400006425973e-03
> 303 KSP preconditioned resid norm 2.767651815672e-04 true resid norm 2.966274423730e+01 ||r(i)||/||b|| 4.418095365778e-04
> 304 KSP preconditioned resid norm 2.769145142443e-04 true resid norm 2.967874922780e+01 ||r(i)||/||b|| 4.420479217177e-04
> 305 KSP preconditioned resid norm 2.669690509777e-03 true resid norm 2.861282853351e+02 ||r(i)||/||b|| 4.261716452611e-03
> 306 KSP preconditioned resid norm 5.477323157568e-03 true resid norm 5.870407366268e+02 ||r(i)||/||b|| 8.743634564843e-03
> 307 KSP preconditioned resid norm 1.187253595512e-06 true resid norm 1.272457750950e-01 ||r(i)||/||b|| 1.895252727680e-06
> 308 KSP preconditioned resid norm 2.168305092952e+00 true resid norm 2.323915137191e+05 ||r(i)||/||b|| 3.461338106800e+00
> 309 KSP preconditioned resid norm 3.674108569258e-03 true resid norm 3.937783732259e+02 ||r(i)||/||b|| 5.865102675514e-03
> 310 KSP preconditioned resid norm 9.663808831088e-04 true resid norm 1.035733933599e+02 ||r(i)||/||b|| 1.542666199595e-03
> 311 KSP preconditioned resid norm 2.905881247679e-04 true resid norm 3.114423999927e+01 ||r(i)||/||b|| 4.638755649534e-04
> 312 KSP preconditioned resid norm 2.276520242446e-04 true resid norm 2.439896429079e+01 ||r(i)||/||b|| 3.634085578884e-04
> 313 KSP preconditioned resid norm 5.909203310746e-06 true resid norm 6.333281888478e-01 ||r(i)||/||b|| 9.433059577294e-06
> 314 KSP preconditioned resid norm 1.132991640772e-04 true resid norm 1.214301635826e+01 ||r(i)||/||b|| 1.808632534798e-04
> 315 KSP preconditioned resid norm 1.149655320396e-01 true resid norm 1.232161196723e+04 ||r(i)||/||b|| 1.835233324869e-01
> 316 KSP preconditioned resid norm 1.445642724369e-02 true resid norm 1.549390358719e+03 ||r(i)||/||b|| 2.307727939423e-02
> 317 KSP preconditioned resid norm 1.748966842893e+00 true resid norm 1.874482760043e+05 ||r(i)||/||b|| 2.791934397278e+00
> 318 KSP preconditioned resid norm 3.200837397862e-03 true resid norm 3.430547894864e+02 ||r(i)||/||b|| 5.109604032292e-03
> 319 KSP preconditioned resid norm 3.363929224528e+00 true resid norm 3.605344128712e+05 ||r(i)||/||b|| 5.369952981985e+00
> 320 KSP preconditioned resid norm 6.693942426451e-01 true resid norm 7.174338225998e+04 ||r(i)||/||b|| 1.068576468018e+00
> 321 KSP preconditioned resid norm 4.239885892382e-02 true resid norm 4.544164483869e+03 ||r(i)||/||b|| 6.768271973389e-02
> 322 KSP preconditioned resid norm 7.716682076793e-01 true resid norm 8.270475554445e+04 ||r(i)||/||b|| 1.231839826671e+00
> 323 KSP preconditioned resid norm 8.829139791489e-02 true resid norm 9.462769631425e+03 ||r(i)||/||b|| 1.409425180677e-01
> 324 KSP preconditioned resid norm 4.184745081336e+00 true resid norm 4.485066451151e+05 ||r(i)||/||b|| 6.680248848357e+00
> 325 KSP preconditioned resid norm 7.244650997288e+01 true resid norm 7.764568810616e+06 ||r(i)||/||b|| 1.156487923201e+02
> 326 KSP preconditioned resid norm 6.173923463866e+03 true resid norm 6.616999712610e+08 ||r(i)||/||b|| 9.855640979055e+03
> 327 KSP preconditioned resid norm 1.959276674036e+00 true resid norm 2.099885634282e+05 ||r(i)||/||b|| 3.127659030892e+00
> 328 KSP preconditioned resid norm 1.121351920525e+01 true resid norm 1.201826582282e+06 ||r(i)||/||b|| 1.790051659135e+01
> 329 KSP preconditioned resid norm 1.130971168979e+03 true resid norm 1.212136163323e+08 ||r(i)||/||b|| 1.805407187894e+03
> 330 KSP preconditioned resid norm 4.420103087306e+00 true resid norm 4.737315101142e+05 ||r(i)||/||b|| 7.055958722883e+00
> 331 KSP preconditioned resid norm 4.088057471206e+02 true resid norm 4.381439982323e+07 ||r(i)||/||b|| 6.525903175538e+02
> 332 KSP preconditioned resid norm 3.402449682428e-01 true resid norm 3.646629036299e+04 ||r(i)||/||b|| 5.431444480354e-01
> 333 KSP preconditioned resid norm 1.669642304015e+00 true resid norm 1.789465436480e+05 ||r(i)||/||b|| 2.665305977385e+00
> 334 KSP preconditioned resid norm 4.807832112080e+01 true resid norm 5.152869790310e+06 ||r(i)||/||b|| 7.674903562158e+01
> 335 KSP preconditioned resid norm 1.806983009801e+01 true resid norm 1.936662501047e+06 ||r(i)||/||b|| 2.884547549782e+01
> 336 KSP preconditioned resid norm 5.609893970183e+03 true resid norm 6.012492219418e+08 ||r(i)||/||b|| 8.955261791990e+03
> 337 KSP preconditioned resid norm 6.497291386334e+00 true resid norm 6.963574376650e+05 ||r(i)||/||b|| 1.037184403324e+01
> 338 KSP preconditioned resid norm 1.795335659929e-01 true resid norm 1.924179270349e+04 ||r(i)||/||b|| 2.865954494717e-01
> 339 KSP preconditioned resid norm 8.220070254050e+00 true resid norm 8.809989762712e+05 ||r(i)||/||b|| 1.312197368922e+01
> 340 KSP preconditioned resid norm 2.258978929963e-02 true resid norm 2.421096247060e+03 ||r(i)||/||b|| 3.606083787686e-02
> 341 KSP preconditioned resid norm 3.878103577901e+00 true resid norm 4.156418591179e+05 ||r(i)||/||b|| 6.190746739079e+00
> 342 KSP preconditioned resid norm 5.952599113346e+00 true resid norm 6.379791855371e+05 ||r(i)||/||b|| 9.502333501362e+00
> 343 KSP preconditioned resid norm 7.222045044346e+02 true resid norm 7.740340526223e+07 ||r(i)||/||b|| 1.152879259413e+03
> 344 KSP preconditioned resid norm 6.364182209877e+01 true resid norm 6.820912521576e+06 ||r(i)||/||b|| 1.015935739488e+02
> 345 KSP preconditioned resid norm 3.827037043269e+02 true resid norm 4.101687228369e+07 ||r(i)||/||b|| 6.109227518045e+02
> 346 KSP preconditioned resid norm 6.309451684929e+00 true resid norm 6.762254219609e+05 ||r(i)||/||b|| 1.007198922354e+01
> 347 KSP preconditioned resid norm 2.044414998384e+00 true resid norm 2.191133974822e+05 ||r(i)||/||b|| 3.263568192651e+00
> 348 KSP preconditioned resid norm 1.457585290772e-02 true resid norm 1.562190008524e+03 ||r(i)||/||b|| 2.326792282571e-02
> 349 KSP preconditioned resid norm 3.697892503779e-01 true resid norm 3.963274534823e+04 ||r(i)||/||b|| 5.903069761695e-01
> 350 KSP preconditioned resid norm 1.104685840662e+02 true resid norm 1.183964449407e+07 ||r(i)||/||b|| 1.763447038252e+02
> 351 KSP preconditioned resid norm 1.199213228986e+02 true resid norm 1.285275666774e+07 ||r(i)||/||b|| 1.914344277014e+02
> 352 KSP preconditioned resid norm 1.183644579434e+02 true resid norm 1.268589721439e+07 ||r(i)||/||b|| 1.889491519909e+02
> 353 KSP preconditioned resid norm 1.234968225554e+02 true resid norm 1.323596647557e+07 ||r(i)||/||b|| 1.971421176662e+02
> 354 KSP preconditioned resid norm 2.882557881065e-01 true resid norm 3.089426814670e+04 ||r(i)||/||b|| 4.601523777979e-01
> 355 KSP preconditioned resid norm 2.170676916299e+02 true resid norm 2.326457175403e+07 ||r(i)||/||b|| 3.465124326697e+02
> 356 KSP preconditioned resid norm 5.764266225925e+00 true resid norm 6.177943120636e+05 ||r(i)||/||b|| 9.201691405543e+00
> 357 KSP preconditioned resid norm 1.701448294063e+04 true resid norm 1.823554008687e+09 ||r(i)||/||b|| 2.716078947576e+04
> Linear solve did not converge due to DIVERGED_DTOL iterations 357
>
>
>
>
>
>
> >On 2013-01-09 01:58:24，"Jed Brown" <jedbrown at mcs.anl.gov> 写道：
> >>On Tue, Jan 8, 2013 at 11:50 AM, w_ang_temp <w_ang_temp at 163.com> wrote:
>
> >>I am sorry.
> >>In my view, preconditioned resid norm:||rp||=||Bb-BAx||(B is the preconditioned matrix);
>
> >-ksp_norm_type preconditioned is the default for GMRES, so it's using preconditioned residual.
>
> >>true resid norm:||rt||=||b-Ax||; ||r(i)||/||b||: ||rt||/||b||. Is it right?
> >>(1) Divergence is detected if
>
> >> ||rp||/||b|| > dtol or ||rt||/||b|| > dtol ?
>
> >Neither, it's |rp|/|min(rp0,rp1,rp2,rp3,...)|. Your solver "converges" a bit at some iteration and then jumps a lot so the denominator is smaller than rp0.
>
> >> Both of them (rt/b:1.701448294063e+04 / 6.7139E+4; rt/b:2.716078947576e+04; dtol=1.0E+5 )
> >>are not in this example, but it is divergent?
>
>
>
>
>
>
>
>
> --
> What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.
> -- Norbert Wiener
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