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On 04/04/2011 09:21 AM, Jed Brown wrote:
<blockquote
cite="mid:BANLkTimiZVYfV_CDbTiMSUJKmOWeazvxXw@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_quote">On Mon, Apr 4, 2011 at 07:59,
Kontsantinos Kontzialis <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:ckontzialis@lycos.com">ckontzialis@lycos.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">
<div id=":dz">I use snes to apply an implicit Runge-Kutta
method. I see that the snes and ksp solvers converge very
slowly. Here is the runtime options I use:<br>
<br>
mpiexec -np 4 ./hoac cylinder -snes_mf_operator -pc_type
hypre -pc_hypre_type euclid -pc_hypre_euclid_levels 2
-ksp_type gmres -dt 1.0e-1 -n_out 10 -file_out
cylinder.txt -mat_inode_limit 5 -snes_monitor -end_time
1.0e+1 -roe_flux -snes_converged_reason -snes_max_fail 50
-u_mom 0.2 -implicit -implicit_type 2 -snes_atol 1.0e-6
-snes_ksp_ew_conv -ksp_gmres_cgs_refinement_type
REFINE_IFNEEDED -ksp_gmres_classicalgramschmidt<br>
<br>
Also, I use coloring to compute the jacobian of the
system. Any suggestions?</div>
</blockquote>
</div>
<br>
<div>This is not enough information to do more than guess. What
equations are you solving, what methods have you tried, and
how do they perform (show convergence history, "very slowly"
means very different things to different people)?</div>
<div><br>
</div>
<div>To speed up Newton, you can (a) more accurate linear solve,
(b) better initial guess, e.g. provided by stable
extrapolation or grid sequencing, (c) more exotic things like
nonlinear Schwarz. For the linear solve, you usually have to
improve the preconditioner (unless something is being done
"wrong" like failing to acknowledge a low-dimensional null
space).</div>
</div>
</blockquote>
Jed,<br>
<br>
I am using a Discontinuous Galerkin method for the Euler equations
of gas dynamics. I noticed that snes iterations do not drop the
function norm and i need to set ksp_rtol to very low values in order
to get converged solution. But this takes time. I use a matrix-free
method with coloring for computing the jacobian as a preconditioner.
<br>
<br>
For instance<br>
<br>
Timestep 0: step size = 0.1, time = 0, 2-norm residual = 0, CFL =
2910.23<br>
Stage 1<br>
0 SNES Function norm 1.027079922974e-01 <br>
0 KSP Residual norm 6.927237709481e+00 <br>
1 KSP Residual norm 6.418924686154e-01 <br>
2 KSP Residual norm 3.848527585443e-01 <br>
3 KSP Residual norm 3.125092840762e-01 <br>
4 KSP Residual norm 1.723224124866e-01 <br>
5 KSP Residual norm 1.593049965355e-01 <br>
6 KSP Residual norm 1.316596985033e-01 <br>
7 KSP Residual norm 1.103893708040e-01 <br>
8 KSP Residual norm 7.067294579947e-02 <br>
9 KSP Residual norm 6.780500381016e-02 <br>
10 KSP Residual norm 5.681755604855e-02 <br>
11 KSP Residual norm 5.080542537215e-02 <br>
12 KSP Residual norm 4.491096057365e-02 <br>
13 KSP Residual norm 3.677544617683e-02 <br>
14 KSP Residual norm 3.511275641736e-02 <br>
15 KSP Residual norm 2.950583865595e-02 <br>
16 KSP Residual norm 2.907564423196e-02 <br>
17 KSP Residual norm 2.503394162059e-02 <br>
18 KSP Residual norm 2.404208792763e-02 <br>
19 KSP Residual norm 2.384167488597e-02 <br>
20 KSP Residual norm 2.152623807336e-02 <br>
21 KSP Residual norm 2.140123445364e-02 <br>
22 KSP Residual norm 1.868992128733e-02 <br>
23 KSP Residual norm 1.828641368024e-02 <br>
24 KSP Residual norm 1.490016051590e-02 <br>
25 KSP Residual norm 1.460258473433e-02 <br>
26 KSP Residual norm 1.297026817438e-02 <br>
27 KSP Residual norm 1.287620709307e-02 <br>
28 KSP Residual norm 1.227961630095e-02 <br>
29 KSP Residual norm 1.195861330978e-02 <br>
30 KSP Residual norm 1.194779545098e-02 <br>
31 KSP Residual norm 1.194557385421e-02 <br>
32 KSP Residual norm 1.179010880493e-02 <br>
33 KSP Residual norm 1.149738273328e-02 <br>
34 KSP Residual norm 1.145048206086e-02 <br>
35 KSP Residual norm 1.085469098538e-02 <br>
36 KSP Residual norm 1.074679906620e-02 <br>
37 KSP Residual norm 9.663878491019e-03 <br>
38 KSP Residual norm 9.616289395896e-03 <br>
39 KSP Residual norm 8.856279445189e-03 <br>
40 KSP Residual norm 8.843663029957e-03 <br>
41 KSP Residual norm 8.499163748714e-03 <br>
42 KSP Residual norm 8.390473347232e-03 <br>
43 KSP Residual norm 8.308302849856e-03 <br>
44 KSP Residual norm 7.657464451533e-03 <br>
45 KSP Residual norm 7.633733629069e-03 <br>
46 KSP Residual norm 6.791549457705e-03 <br>
47 KSP Residual norm 6.761807932440e-03 <br>
48 KSP Residual norm 6.310159420349e-03 <br>
49 KSP Residual norm 6.308135765891e-03 <br>
50 KSP Residual norm 6.178469644420e-03 <br>
51 KSP Residual norm 6.092441106798e-03 <br>
52 KSP Residual norm 6.060022864473e-03 <br>
53 KSP Residual norm 5.690961052139e-03 <br>
54 KSP Residual norm 5.643775917490e-03 <br>
55 KSP Residual norm 5.203641551515e-03 <br>
56 KSP Residual norm 5.146470256961e-03 <br>
57 KSP Residual norm 4.903702702525e-03 <br>
58 KSP Residual norm 4.898824722874e-03 <br>
59 KSP Residual norm 4.813924377178e-03 <br>
60 KSP Residual norm 4.723526162768e-03 <br>
61 KSP Residual norm 4.711592750967e-03 <br>
62 KSP Residual norm 4.631580873260e-03 <br>
63 KSP Residual norm 4.616608546291e-03 <br>
64 KSP Residual norm 4.600837802917e-03 <br>
65 KSP Residual norm 4.474343564228e-03 <br>
66 KSP Residual norm 4.443094833339e-03 <br>
67 KSP Residual norm 4.224165899917e-03 <br>
68 KSP Residual norm 4.200220155408e-03 <br>
69 KSP Residual norm 3.982639561746e-03 <br>
70 KSP Residual norm 3.982638871843e-03 <br>
71 KSP Residual norm 3.922944438857e-03 <br>
72 KSP Residual norm 3.874158019578e-03 <br>
73 KSP Residual norm 3.846756027386e-03 <br>
74 KSP Residual norm 3.602959352657e-03 <br>
75 KSP Residual norm 3.555118913445e-03 <br>
76 KSP Residual norm 3.177203273748e-03 <br>
77 KSP Residual norm 3.156576767081e-03 <br>
78 KSP Residual norm 3.001743691226e-03 <br>
79 KSP Residual norm 2.993215617549e-03 <br>
80 KSP Residual norm 2.958723177572e-03 <br>
81 KSP Residual norm 2.756494447464e-03 <br>
82 KSP Residual norm 2.748309056765e-03 <br>
83 KSP Residual norm 2.334551378904e-03 <br>
84 KSP Residual norm 2.330135779280e-03 <br>
85 KSP Residual norm 2.158060720380e-03 <br>
86 KSP Residual norm 2.142593286155e-03 <br>
87 KSP Residual norm 2.117828962844e-03 <br>
88 KSP Residual norm 1.994027737245e-03 <br>
89 KSP Residual norm 1.992614508152e-03 <br>
90 KSP Residual norm 1.846186979481e-03 <br>
91 KSP Residual norm 1.845847460736e-03 <br>
92 KSP Residual norm 1.750049894784e-03 <br>
93 KSP Residual norm 1.749884975326e-03 <br>
94 KSP Residual norm 1.718243135806e-03 <br>
95 KSP Residual norm 1.692788497273e-03 <br>
96 KSP Residual norm 1.690541479527e-03 <br>
97 KSP Residual norm 1.606671137740e-03 <br>
98 KSP Residual norm 1.604648007071e-03 <br>
99 KSP Residual norm 1.491359345392e-03 <br>
100 KSP Residual norm 1.487500193779e-03 <br>
101 KSP Residual norm 1.431517768459e-03 <br>
102 KSP Residual norm 1.413892181036e-03 <br>
103 KSP Residual norm 1.411244613047e-03 <br>
104 KSP Residual norm 1.358895518150e-03 <br>
105 KSP Residual norm 1.352907680814e-03 <br>
106 KSP Residual norm 1.290825812795e-03 <br>
107 KSP Residual norm 1.277895797362e-03 <br>
108 KSP Residual norm 1.239827948290e-03 <br>
109 KSP Residual norm 1.231707202118e-03 <br>
110 KSP Residual norm 1.226844439539e-03 <br>
111 KSP Residual norm 1.207141785145e-03 <br>
112 KSP Residual norm 1.205237619380e-03 <br>
113 KSP Residual norm 1.174105568044e-03 <br>
114 KSP Residual norm 1.161571710906e-03 <br>
115 KSP Residual norm 1.127339527466e-03 <br>
116 KSP Residual norm 1.118975806161e-03 <br>
117 KSP Residual norm 1.108813712733e-03 <br>
118 KSP Residual norm 1.097495827387e-03 <br>
119 KSP Residual norm 1.095458651348e-03 <br>
120 KSP Residual norm 1.099354754200e-03 <br>
121 KSP Residual norm 1.097690891747e-03 <br>
122 KSP Residual norm 1.080236637641e-03 <br>
123 KSP Residual norm 1.075249519522e-03 <br>
124 KSP Residual norm 1.072337341208e-03 <br>
125 KSP Residual norm 1.061274156366e-03 <br>
126 KSP Residual norm 1.061069171322e-03 <br>
127 KSP Residual norm 1.034869646780e-03 <br>
128 KSP Residual norm 1.033331884671e-03 <br>
129 KSP Residual norm 1.008920875186e-03 <br>
130 KSP Residual norm 1.004952247105e-03 <br>
131 KSP Residual norm 9.995273012222e-04 <br>
132 KSP Residual norm 9.912110212877e-04 <br>
133 KSP Residual norm 9.911763000203e-04 <br>
134 KSP Residual norm 9.706007632685e-04 <br>
135 KSP Residual norm 9.684837666814e-04 <br>
136 KSP Residual norm 9.322763749700e-04 <br>
137 KSP Residual norm 9.298333190027e-04 <br>
138 KSP Residual norm 9.127255619624e-04 <br>
139 KSP Residual norm 9.021675689666e-04 <br>
140 KSP Residual norm 9.021675667879e-04 <br>
141 KSP Residual norm 8.785893989448e-04 <br>
142 KSP Residual norm 8.723618462518e-04 <br>
143 KSP Residual norm 8.321111011021e-04 <br>
144 KSP Residual norm 8.231111137986e-04 <br>
145 KSP Residual norm 7.991951376136e-04 <br>
146 KSP Residual norm 7.918718558159e-04 <br>
147 KSP Residual norm 7.910248570583e-04 <br>
148 KSP Residual norm 7.797518457299e-04 <br>
149 KSP Residual norm 7.740621090192e-04 <br>
150 KSP Residual norm 7.996865400922e-04 <br>
151 KSP Residual norm 7.985981734959e-04 <br>
152 KSP Residual norm 7.629754272125e-04 <br>
153 KSP Residual norm 7.621465465035e-04 <br>
154 KSP Residual norm 7.494704585166e-04 <br>
155 KSP Residual norm 7.416807470073e-04 <br>
156 KSP Residual norm 7.397837511960e-04 <br>
157 KSP Residual norm 7.160474295065e-04 <br>
158 KSP Residual norm 7.153230970945e-04 <br>
159 KSP Residual norm 6.833108294843e-04 <br>
160 KSP Residual norm 6.825301707967e-04 <br>
161 KSP Residual norm 6.689873131620e-04 <br>
162 KSP Residual norm 6.665860331512e-04 <br>
163 KSP Residual norm 6.657084022499e-04 <br>
164 KSP Residual norm 6.576302936674e-04 <br>
165 KSP Residual norm 6.551257109061e-04 <br>
166 KSP Residual norm 6.432495386190e-04 <br>
167 KSP Residual norm 6.393490617663e-04 <br>
168 KSP Residual norm 6.289563544548e-04 <br>
169 KSP Residual norm 6.248514077557e-04 <br>
170 KSP Residual norm 6.241333036068e-04 <br>
171 KSP Residual norm 6.172289972591e-04 <br>
172 KSP Residual norm 6.161332336230e-04 <br>
173 KSP Residual norm 6.013433202566e-04 <br>
174 KSP Residual norm 5.948389748744e-04 <br>
175 KSP Residual norm 5.820459960548e-04 <br>
176 KSP Residual norm 5.780888500630e-04 <br>
177 KSP Residual norm 5.765550402812e-04 <br>
178 KSP Residual norm 5.680617497540e-04 <br>
179 KSP Residual norm 5.653573865953e-04 <br>
180 KSP Residual norm 5.941451965319e-04 <br>
181 KSP Residual norm 5.940284187867e-04 <br>
182 KSP Residual norm 5.629093879046e-04 <br>
183 KSP Residual norm 5.616029219408e-04 <br>
184 KSP Residual norm 5.534251512246e-04 <br>
185 KSP Residual norm 5.503051759591e-04 <br>
186 KSP Residual norm 5.494615294258e-04 <br>
187 KSP Residual norm 5.360903464690e-04 <br>
188 KSP Residual norm 5.357596839925e-04 <br>
189 KSP Residual norm 5.200595645635e-04 <br>
190 KSP Residual norm 5.193081989440e-04 <br>
191 KSP Residual norm 5.128888843140e-04 <br>
192 KSP Residual norm 5.113184826859e-04 <br>
193 KSP Residual norm 5.108224858562e-04 <br>
194 KSP Residual norm 5.032655916038e-04 <br>
195 KSP Residual norm 5.023522053806e-04 <br>
196 KSP Residual norm 4.899188744381e-04 <br>
197 KSP Residual norm 4.883553377255e-04 <br>
198 KSP Residual norm 4.800289474213e-04 <br>
199 KSP Residual norm 4.777279100041e-04 <br>
200 KSP Residual norm 4.759559094663e-04 <br>
201 KSP Residual norm 4.694818511931e-04 <br>
202 KSP Residual norm 4.689973302866e-04 <br>
203 KSP Residual norm 4.548454768507e-04 <br>
204 KSP Residual norm 4.520367591463e-04 <br>
205 KSP Residual norm 4.368451030442e-04 <br>
206 KSP Residual norm 4.351974523374e-04 <br>
207 KSP Residual norm 4.287065645698e-04 <br>
208 KSP Residual norm 4.260330488789e-04 <br>
209 KSP Residual norm 4.260155248925e-04 <br>
210 KSP Residual norm 4.840531342466e-04 <br>
211 KSP Residual norm 4.825477592344e-04 <br>
212 KSP Residual norm 4.548435246139e-04 <br>
213 KSP Residual norm 4.544995360569e-04 <br>
214 KSP Residual norm 4.467888907692e-04 <br>
215 KSP Residual norm 4.408942282764e-04 <br>
216 KSP Residual norm 4.370393567572e-04 <br>
217 KSP Residual norm 4.221207630715e-04 <br>
218 KSP Residual norm 4.210509669927e-04 <br>
219 KSP Residual norm 4.054854033659e-04 <br>
220 KSP Residual norm 4.054421274470e-04 <br>
221 KSP Residual norm 3.997032630117e-04 <br>
222 KSP Residual norm 3.993282795883e-04 <br>
223 KSP Residual norm 3.986988207685e-04 <br>
224 KSP Residual norm 3.925181315143e-04 <br>
225 KSP Residual norm 3.921926168323e-04 <br>
226 KSP Residual norm 3.821204190940e-04 <br>
227 KSP Residual norm 3.814133566930e-04 <br>
228 KSP Residual norm 3.766128637251e-04 <br>
229 KSP Residual norm 3.757253419248e-04 <br>
230 KSP Residual norm 3.744322716702e-04 <br>
231 KSP Residual norm 3.701160966981e-04 <br>
232 KSP Residual norm 3.701152921823e-04 <br>
233 KSP Residual norm 3.631617558377e-04 <br>
234 KSP Residual norm 3.625708411480e-04 <br>
235 KSP Residual norm 3.553808760610e-04 <br>
236 KSP Residual norm 3.546034916825e-04 <br>
237 KSP Residual norm 3.540786524554e-04 <br>
238 KSP Residual norm 3.511344181564e-04 <br>
239 KSP Residual norm 3.505042720512e-04 <br>
240 KSP Residual norm 4.132290626555e-04 <br>
241 KSP Residual norm 4.082857512512e-04 <br>
242 KSP Residual norm 3.711356050665e-04 <br>
243 KSP Residual norm 3.704069640625e-04 <br>
244 KSP Residual norm 3.547568213329e-04 <br>
245 KSP Residual norm 3.546708808789e-04 <br>
246 KSP Residual norm 3.500496433773e-04 <br>
247 KSP Residual norm 3.470649802709e-04 <br>
248 KSP Residual norm 3.468562003147e-04 <br>
249 KSP Residual norm 3.373236757208e-04 <br>
250 KSP Residual norm 3.372785835705e-04 <br>
251 KSP Residual norm 3.289650260262e-04 <br>
252 KSP Residual norm 3.286262513859e-04 <br>
253 KSP Residual norm 3.258404684367e-04 <br>
254 KSP Residual norm 3.233806739275e-04 <br>
255 KSP Residual norm 3.232848418577e-04 <br>
256 KSP Residual norm 3.160390660748e-04 <br>
257 KSP Residual norm 3.160023434928e-04 <br>
258 KSP Residual norm 3.076800563449e-04 <br>
259 KSP Residual norm 3.075950769044e-04 <br>
260 KSP Residual norm 3.017997123649e-04 <br>
261 KSP Residual norm 3.010370755465e-04 <br>
262 KSP Residual norm 3.007348493909e-04 <br>
263 KSP Residual norm 2.968283761627e-04 <br>
264 KSP Residual norm 2.965667647944e-04 <br>
265 KSP Residual norm 2.875262248594e-04 <br>
266 KSP Residual norm 2.864872321977e-04 <br>
267 KSP Residual norm 2.796799864284e-04 <br>
268 KSP Residual norm 2.779800721903e-04 <br>
269 KSP Residual norm 2.767755518062e-04 <br>
270 KSP Residual norm 3.701476508480e-04 <br>
271 KSP Residual norm 3.550531831491e-04 <br>
272 KSP Residual norm 3.237961295410e-04 <br>
273 KSP Residual norm 3.212659135171e-04 <br>
274 KSP Residual norm 3.107416795714e-04 <br>
275 KSP Residual norm 3.107404695290e-04 <br>
276 KSP Residual norm 3.079497903315e-04 <br>
277 KSP Residual norm 3.007874486462e-04 <br>
278 KSP Residual norm 3.002891498945e-04 <br>
279 KSP Residual norm 2.879889328174e-04 <br>
280 KSP Residual norm 2.879415924827e-04 <br>
281 KSP Residual norm 2.815601989921e-04 <br>
282 KSP Residual norm 2.806654362436e-04 <br>
283 KSP Residual norm 2.792915793473e-04 <br>
284 KSP Residual norm 2.751905583679e-04 <br>
285 KSP Residual norm 2.751559506503e-04 <br>
286 KSP Residual norm 2.665087440439e-04 <br>
287 KSP Residual norm 2.664771447418e-04 <br>
288 KSP Residual norm 2.617548480595e-04 <br>
289 KSP Residual norm 2.617541578606e-04 <br>
290 KSP Residual norm 2.605161966159e-04 <br>
291 KSP Residual norm 2.594628541708e-04 <br>
292 KSP Residual norm 2.594611806903e-04 <br>
293 KSP Residual norm 2.551674006816e-04 <br>
294 KSP Residual norm 2.549606997571e-04 <br>
295 KSP Residual norm 2.496835632981e-04 <br>
296 KSP Residual norm 2.494290948044e-04 <br>
297 KSP Residual norm 2.466008586027e-04 <br>
298 KSP Residual norm 2.449860389047e-04 <br>
299 KSP Residual norm 2.448908502370e-04 <br>
300 KSP Residual norm 3.252504105699e-04 <br>
301 KSP Residual norm 3.128088862424e-04 <br>
302 KSP Residual norm 2.825197019556e-04 <br>
303 KSP Residual norm 2.797432079325e-04 <br>
304 KSP Residual norm 2.629301571560e-04 <br>
305 KSP Residual norm 2.624809613098e-04 <br>
306 KSP Residual norm 2.574770828907e-04 <br>
307 KSP Residual norm 2.561990302939e-04 <br>
308 KSP Residual norm 2.550132639501e-04 <br>
309 KSP Residual norm 2.479276320314e-04 <br>
310 KSP Residual norm 2.475314075344e-04 <br>
311 KSP Residual norm 2.399863564606e-04 <br>
312 KSP Residual norm 2.399843817621e-04 <br>
313 KSP Residual norm 2.370399439375e-04 <br>
314 KSP Residual norm 2.357745430699e-04 <br>
315 KSP Residual norm 2.352348621885e-04 <br>
316 KSP Residual norm 2.309261579390e-04 <br>
317 KSP Residual norm 2.307545694928e-04 <br>
318 KSP Residual norm 2.257800220221e-04 <br>
319 KSP Residual norm 2.257254923503e-04 <br>
320 KSP Residual norm 2.229018664838e-04 <br>
321 KSP Residual norm 2.227391409799e-04 <br>
322 KSP Residual norm 2.223152932089e-04 <br>
323 KSP Residual norm 2.202129550826e-04 <br>
324 KSP Residual norm 2.202120254316e-04 <br>
325 KSP Residual norm 2.140858308118e-04 <br>
326 KSP Residual norm 2.139462657614e-04 <br>
327 KSP Residual norm 2.089236399059e-04 <br>
328 KSP Residual norm 2.087138619354e-04 <br>
329 KSP Residual norm 2.076200058793e-04 <br>
330 KSP Residual norm 3.105137354000e-04 <br>
331 KSP Residual norm 2.971618102980e-04 <br>
332 KSP Residual norm 2.632509491662e-04 <br>
333 KSP Residual norm 2.606782931874e-04 <br>
334 KSP Residual norm 2.420375352578e-04 <br>
335 KSP Residual norm 2.420149875537e-04 <br>
336 KSP Residual norm 2.365092764887e-04 <br>
337 KSP Residual norm 2.327611491860e-04 <br>
338 KSP Residual norm 2.309994170994e-04 <br>
339 KSP Residual norm 2.207932064590e-04 <br>
340 KSP Residual norm 2.206876586929e-04 <br>
341 KSP Residual norm 2.138312153956e-04 <br>
342 KSP Residual norm 2.138302439214e-04 <br>
343 KSP Residual norm 2.110520083920e-04 <br>
344 KSP Residual norm 2.098418044530e-04 <br>
345 KSP Residual norm 2.096235899540e-04 <br>
346 KSP Residual norm 2.034185757316e-04 <br>
347 KSP Residual norm 2.034184620635e-04 <br>
348 KSP Residual norm 1.976488405192e-04 <br>
349 KSP Residual norm 1.976115434786e-04 <br>
350 KSP Residual norm 1.945816030084e-04 <br>
351 KSP Residual norm 1.943065435743e-04 <br>
352 KSP Residual norm 1.937314638157e-04 <br>
353 KSP Residual norm 1.914843655114e-04 <br>
354 KSP Residual norm 1.914699026461e-04 <br>
355 KSP Residual norm 1.874847304454e-04 <br>
356 KSP Residual norm 1.872309478602e-04 <br>
357 KSP Residual norm 1.848831376039e-04 <br>
358 KSP Residual norm 1.841538952700e-04 <br>
359 KSP Residual norm 1.840508058060e-04 <br>
360 KSP Residual norm 2.955683800624e-04 <br>
361 KSP Residual norm 2.787092713017e-04 <br>
362 KSP Residual norm 2.375973954952e-04 <br>
363 KSP Residual norm 2.362837002318e-04 <br>
364 KSP Residual norm 2.168814309608e-04 <br>
365 KSP Residual norm 2.168107429718e-04 <br>
366 KSP Residual norm 2.100451614964e-04 <br>
367 KSP Residual norm 2.076551935282e-04 <br>
368 KSP Residual norm 2.055029282370e-04 <br>
369 KSP Residual norm 1.984878777061e-04 <br>
370 KSP Residual norm 1.982729424399e-04 <br>
371 KSP Residual norm 1.897882681691e-04 <br>
372 KSP Residual norm 1.897059804945e-04 <br>
373 KSP Residual norm 1.874194039890e-04 <br>
374 KSP Residual norm 1.863443914354e-04 <br>
375 KSP Residual norm 1.862854861081e-04 <br>
376 KSP Residual norm 1.823365401806e-04 <br>
377 KSP Residual norm 1.822124001004e-04 <br>
378 KSP Residual norm 1.768066383954e-04 <br>
379 KSP Residual norm 1.767749820797e-04 <br>
380 KSP Residual norm 1.732546065272e-04 <br>
381 KSP Residual norm 1.729449336935e-04 <br>
382 KSP Residual norm 1.722785014035e-04 <br>
383 KSP Residual norm 1.708647196037e-04 <br>
384 KSP Residual norm 1.708139978897e-04 <br>
385 KSP Residual norm 1.669271053730e-04 <br>
386 KSP Residual norm 1.664487742887e-04 <br>
387 KSP Residual norm 1.633713872445e-04 <br>
388 KSP Residual norm 1.623611873959e-04 <br>
389 KSP Residual norm 1.619434626999e-04 <br>
390 KSP Residual norm 2.704606714739e-04 <br>
391 KSP Residual norm 2.508430425343e-04 <br>
392 KSP Residual norm 2.188049406578e-04 <br>
393 KSP Residual norm 2.149849069956e-04 <br>
394 KSP Residual norm 1.986339539905e-04 <br>
395 KSP Residual norm 1.982077076504e-04 <br>
396 KSP Residual norm 1.920881700711e-04 <br>
397 KSP Residual norm 1.895113714247e-04 <br>
398 KSP Residual norm 1.880286374771e-04 <br>
399 KSP Residual norm 1.800051766499e-04 <br>
400 KSP Residual norm 1.791342664207e-04 <br>
401 KSP Residual norm 1.723021103007e-04 <br>
402 KSP Residual norm 1.722983364536e-04 <br>
403 KSP Residual norm 1.699546057741e-04 <br>
404 KSP Residual norm 1.688016004024e-04 <br>
405 KSP Residual norm 1.684647860428e-04 <br>
406 KSP Residual norm 1.642044267398e-04 <br>
407 KSP Residual norm 1.641199945107e-04 <br>
408 KSP Residual norm 1.600279143621e-04 <br>
409 KSP Residual norm 1.600082345451e-04 <br>
410 KSP Residual norm 1.571845001808e-04 <br>
411 KSP Residual norm 1.568421146682e-04 <br>
412 KSP Residual norm 1.566121984341e-04 <br>
413 KSP Residual norm 1.541905989228e-04 <br>
414 KSP Residual norm 1.541893814351e-04 <br>
415 KSP Residual norm 1.503096486796e-04 <br>
416 KSP Residual norm 1.502069549475e-04 <br>
417 KSP Residual norm 1.474600334036e-04 <br>
418 KSP Residual norm 1.470811856273e-04 <br>
419 KSP Residual norm 1.468503446550e-04 <br>
420 KSP Residual norm 2.763803512664e-04 <br>
421 KSP Residual norm 2.602057695388e-04 <br>
422 KSP Residual norm 2.183342925626e-04 <br>
423 KSP Residual norm 2.173993739737e-04 <br>
424 KSP Residual norm 1.911804707591e-04 <br>
425 KSP Residual norm 1.909057097612e-04 <br>
426 KSP Residual norm 1.799387525085e-04 <br>
427 KSP Residual norm 1.776177027182e-04 <br>
428 KSP Residual norm 1.742907904950e-04 <br>
429 KSP Residual norm 1.663678496699e-04 <br>
430 KSP Residual norm 1.649483630841e-04 <br>
431 KSP Residual norm 1.574852643960e-04 <br>
432 KSP Residual norm 1.572807748854e-04 <br>
433 KSP Residual norm 1.548887544042e-04 <br>
434 KSP Residual norm 1.546798467860e-04 <br>
435 KSP Residual norm 1.544697005440e-04 <br>
436 KSP Residual norm 1.519993025554e-04 <br>
437 KSP Residual norm 1.519316487948e-04 <br>
438 KSP Residual norm 1.478918963793e-04 <br>
439 KSP Residual norm 1.478889661490e-04 <br>
440 KSP Residual norm 1.445882234540e-04 <br>
441 KSP Residual norm 1.444716701122e-04 <br>
442 KSP Residual norm 1.437624306066e-04 <br>
443 KSP Residual norm 1.422790872780e-04 <br>
444 KSP Residual norm 1.422764539369e-04 <br>
445 KSP Residual norm 1.393786944559e-04 <br>
446 KSP Residual norm 1.393457143473e-04 <br>
447 KSP Residual norm 1.365525969412e-04 <br>
448 KSP Residual norm 1.363095456469e-04 <br>
449 KSP Residual norm 1.354028782839e-04 <br>
450 KSP Residual norm 2.605601751211e-04 <br>
451 KSP Residual norm 2.519694861974e-04 <br>
452 KSP Residual norm 2.090311698383e-04 <br>
453 KSP Residual norm 2.085715879165e-04 <br>
454 KSP Residual norm 1.838015375310e-04 <br>
455 KSP Residual norm 1.837739523119e-04 <br>
456 KSP Residual norm 1.753463622085e-04 <br>
457 KSP Residual norm 1.712295128609e-04 <br>
458 KSP Residual norm 1.706509763269e-04 <br>
459 KSP Residual norm 1.603179612581e-04 <br>
460 KSP Residual norm 1.602910110614e-04 <br>
461 KSP Residual norm 1.515043047705e-04 <br>
462 KSP Residual norm 1.514059184851e-04 <br>
463 KSP Residual norm 1.487375893344e-04 <br>
464 KSP Residual norm 1.472465439488e-04 <br>
465 KSP Residual norm 1.471786946789e-04 <br>
466 KSP Residual norm 1.426656793695e-04 <br>
467 KSP Residual norm 1.426493614178e-04 <br>
468 KSP Residual norm 1.368739431348e-04 <br>
469 KSP Residual norm 1.368507658167e-04 <br>
470 KSP Residual norm 1.334891298516e-04 <br>
471 KSP Residual norm 1.332407426119e-04 <br>
472 KSP Residual norm 1.327738486878e-04 <br>
473 KSP Residual norm 1.307942849615e-04 <br>
474 KSP Residual norm 1.307351952401e-04 <br>
475 KSP Residual norm 1.272337855340e-04 <br>
476 KSP Residual norm 1.270264025130e-04 <br>
477 KSP Residual norm 1.242721163254e-04 <br>
478 KSP Residual norm 1.239396247568e-04 <br>
479 KSP Residual norm 1.231277348178e-04 <br>
480 KSP Residual norm 2.661551792497e-04 <br>
481 KSP Residual norm 2.535113528327e-04 <br>
482 KSP Residual norm 2.047238652433e-04 <br>
483 KSP Residual norm 2.030655099375e-04 <br>
484 KSP Residual norm 1.747312421388e-04 <br>
485 KSP Residual norm 1.745992877616e-04 <br>
486 KSP Residual norm 1.656341028631e-04 <br>
487 KSP Residual norm 1.637510460120e-04 <br>
488 KSP Residual norm 1.614472737567e-04 <br>
489 KSP Residual norm 1.528805694879e-04 <br>
490 KSP Residual norm 1.528597718238e-04 <br>
491 KSP Residual norm 1.433703303374e-04 <br>
492 KSP Residual norm 1.433634532650e-04 <br>
493 KSP Residual norm 1.402208125363e-04 <br>
494 KSP Residual norm 1.396024825606e-04 <br>
495 KSP Residual norm 1.395185211705e-04 <br>
496 KSP Residual norm 1.368721239565e-04 <br>
497 KSP Residual norm 1.368721047917e-04 <br>
498 KSP Residual norm 1.313099701242e-04 <br>
499 KSP Residual norm 1.312558057896e-04 <br>
500 KSP Residual norm 1.278276826286e-04 <br>
501 KSP Residual norm 1.276445215817e-04 <br>
502 KSP Residual norm 1.269142176155e-04 <br>
503 KSP Residual norm 1.257668921397e-04 <br>
504 KSP Residual norm 1.257526015128e-04 <br>
505 KSP Residual norm 1.223245237264e-04 <br>
506 KSP Residual norm 1.221042366836e-04 <br>
507 KSP Residual norm 1.191294573606e-04 <br>
508 KSP Residual norm 1.186779609848e-04 <br>
509 KSP Residual norm 1.179260379388e-04 <br>
510 KSP Residual norm 2.510412421241e-04 <br>
511 KSP Residual norm 2.296629012501e-04 <br>
512 KSP Residual norm 1.891291364587e-04 <br>
513 KSP Residual norm 1.852147919892e-04 <br>
514 KSP Residual norm 1.677771665780e-04 <br>
515 KSP Residual norm 1.672450311159e-04 <br>
516 KSP Residual norm 1.591298996024e-04 <br>
517 KSP Residual norm 1.573813490451e-04 <br>
518 KSP Residual norm 1.537945683810e-04 <br>
519 KSP Residual norm 1.453012826230e-04 <br>
520 KSP Residual norm 1.446639040447e-04 <br>
521 KSP Residual norm 1.370962330437e-04 <br>
522 KSP Residual norm 1.370622043459e-04 <br>
523 KSP Residual norm 1.350810905802e-04 <br>
524 KSP Residual norm 1.344406903453e-04 <br>
525 KSP Residual norm 1.340256203640e-04 <br>
526 KSP Residual norm 1.295916728961e-04 <br>
527 KSP Residual norm 1.295055652264e-04 <br>
528 KSP Residual norm 1.239274488400e-04 <br>
529 KSP Residual norm 1.238972505288e-04 <br>
530 KSP Residual norm 1.201152286403e-04 <br>
531 KSP Residual norm 1.200306481147e-04 <br>
532 KSP Residual norm 1.191679467888e-04 <br>
533 KSP Residual norm 1.177359365688e-04 <br>
534 KSP Residual norm 1.176440079687e-04 <br>
535 KSP Residual norm 1.141371623941e-04 <br>
536 KSP Residual norm 1.141353394103e-04 <br>
537 KSP Residual norm 1.111902304574e-04 <br>
538 KSP Residual norm 1.111435026607e-04 <br>
539 KSP Residual norm 1.104373518780e-04 <br>
540 KSP Residual norm 2.532065970323e-04 <br>
541 KSP Residual norm 2.328558435699e-04 <br>
542 KSP Residual norm 1.856863400432e-04 <br>
543 KSP Residual norm 1.824052503129e-04 <br>
544 KSP Residual norm 1.632727866436e-04 <br>
545 KSP Residual norm 1.623079398737e-04 <br>
546 KSP Residual norm 1.526844888068e-04 <br>
547 KSP Residual norm 1.511265397186e-04 <br>
548 KSP Residual norm 1.477189110182e-04 <br>
549 KSP Residual norm 1.383359375652e-04 <br>
550 KSP Residual norm 1.375702414606e-04 <br>
551 KSP Residual norm 1.291115277686e-04 <br>
552 KSP Residual norm 1.289805911758e-04 <br>
553 KSP Residual norm 1.264565638309e-04 <br>
554 KSP Residual norm 1.261764820334e-04 <br>
555 KSP Residual norm 1.259971989377e-04 <br>
556 KSP Residual norm 1.224124087888e-04 <br>
557 KSP Residual norm 1.224106346986e-04 <br>
558 KSP Residual norm 1.171149088916e-04 <br>
559 KSP Residual norm 1.171056991973e-04 <br>
560 KSP Residual norm 1.135465444557e-04 <br>
561 KSP Residual norm 1.133273524148e-04 <br>
562 KSP Residual norm 1.126341467351e-04 <br>
563 KSP Residual norm 1.110537515701e-04 <br>
564 KSP Residual norm 1.110037552185e-04 <br>
565 KSP Residual norm 1.078890765170e-04 <br>
566 KSP Residual norm 1.078787122262e-04 <br>
567 KSP Residual norm 1.055011245599e-04 <br>
568 KSP Residual norm 1.054883845546e-04 <br>
569 KSP Residual norm 1.049715929970e-04 <br>
570 KSP Residual norm 2.593584803792e-04 <br>
571 KSP Residual norm 2.455814515878e-04 <br>
572 KSP Residual norm 1.938992453788e-04 <br>
573 KSP Residual norm 1.922723159534e-04 <br>
574 KSP Residual norm 1.638561052430e-04 <br>
575 KSP Residual norm 1.638003809937e-04 <br>
576 KSP Residual norm 1.524110974008e-04 <br>
577 KSP Residual norm 1.506343440379e-04 <br>
578 KSP Residual norm 1.478423845281e-04 <br>
579 KSP Residual norm 1.385076232286e-04 <br>
580 KSP Residual norm 1.382879555696e-04 <br>
581 KSP Residual norm 1.288719967621e-04 <br>
582 KSP Residual norm 1.288691781733e-04 <br>
583 KSP Residual norm 1.255148505764e-04 <br>
584 KSP Residual norm 1.252964998236e-04 <br>
585 KSP Residual norm 1.249334077999e-04 <br>
586 KSP Residual norm 1.226044863792e-04 <br>
587 KSP Residual norm 1.226037028980e-04 <br>
588 KSP Residual norm 1.178394232303e-04 <br>
589 KSP Residual norm 1.178390359455e-04 <br>
590 KSP Residual norm 1.140645774874e-04 <br>
591 KSP Residual norm 1.139549138636e-04 <br>
592 KSP Residual norm 1.131882577208e-04 <br>
593 KSP Residual norm 1.119290884708e-04 <br>
594 KSP Residual norm 1.119288058877e-04 <br>
595 KSP Residual norm 1.090328205509e-04 <br>
596 KSP Residual norm 1.087834210599e-04 <br>
597 KSP Residual norm 1.059285536635e-04 <br>
598 KSP Residual norm 1.056123757512e-04 <br>
<br>
<br>
<br>
and it is still running. I have set for this run ksp_rtol to 1.0e-7.
Any ideas?<br>
<br>
Costas<br>
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