[gpaw-users] convergence issues oxides

Lars Grabow grabow at uh.edu
Sun Dec 25 19:29:29 CET 2011


Hi Monica,

have you tried the Davidson eigensolver (eigensolver='dav')? That one worked well for me for [4Fe-4S] cubane clusters that wouldn't converge with any standard settings either. For the mixer i used MixerSum(beta=0.05, nmaxold=5, weight=50). Also, I would increase maxiter a bit. It seems that your system is slowly converging and even though it's not very efficient, you may be able to get the first iteration done and the next ones might be faster.

Merry Christmas!
Lars

On Dec 25, 2011, at 5:27 PM, Monica Garcia Mota wrote:

> Dear GPAW users,
> 
> I am trying to converge spin polarized calculations for oxides but the SCF fails to converge in most of the cases. 
> I have tried the suggestions listed in the GPAW documentation, specially playing with initial magnetic moments and with mixing parameters. Unfortunately, nothing helps to solve the convergence issues.
> 
> One the calculations is an oxygen atom adsorbed on Co3O4(001) surface. 
> These are the parameters used for the calculator
> 
> p = PoissonSolver()
> mixer=MixerSum(0.05, 5, weight=100.0) 
> calc = GPAW(
>            h=0.18, 
>            kpts=(3, 3, 1), 
>            xc = 'RPBE',
>            eigensolver='cg', 
>            mixer=mixer, 
>            occupations=FermiDirac(0.10),
>            maxiter=180,
>            spinpol=True,
>            poissonsolver=DipoleCorrectionPoissonSolver(p,2))
> 
> 
> Convergence Criteria:
> iter:   1  21:05:57  +0.8            -412.15579   3      112      +18.9067
> iter:   2  21:18:00  -1.2            -414.89851   2               +18.9255
> iter:   3  21:36:47  -2.3            -415.77571   2               +18.9271
> iter:   4  21:52:14  -2.2   -1.0     -405.08209   3      68       +30.8926
> iter:   5  22:06:01  -1.7   -1.1     -545.39393   5      58       +7.8315
> iter:   6  22:20:15  -1.7   -1.0     -398.51539   10     105      +4.8696
> iter:   7  22:34:40  -1.8   -1.2     -404.89895   8      72       +12.8912
> iter:   8  22:49:28  -2.1   -1.2     -384.40070   4      96       +12.5838
> iter:   9  23:07:15  -2.6   -1.4     -392.18051   6      89       +12.0381
> iter:  10  23:20:52  -2.3   -1.3     -382.28936   4      73       +11.9194
> iter:  11  23:34:05  -2.5   -1.4     -382.27407   3      88       +11.7761
> iter:  12  23:48:12  -2.8   -1.5     -388.40949   5      87       +15.7232
> iter:  13  00:01:07  -2.1   -1.4     -386.69261   10     93       +10.6513
> iter:  14  00:14:17  -2.5   -1.6     -385.32001   2      92       +13.8186
> iter:  15  00:27:40  -2.2   -1.6     -388.07456   4      87       +8.4996
> iter:  16  00:42:03  -2.6   -1.6     -385.38859   5      86       +8.4281
> iter:  17  00:55:30  -2.5   -1.7     -385.77968   5      90       +11.5292
> iter:  18  01:09:18  -3.0   -1.7     -385.10106   2      91       +11.0917
> iter:  19  01:23:51  -3.6   -1.8     -385.32951   3      89       +10.6944
> iter:  20  01:39:24  -3.5   -1.8     -386.12687   3      89       +8.9473
> iter:  21  01:55:10  -3.1   -1.8     -389.47061   3      89       +3.6117
> iter:  22  02:08:05  -2.7   -1.7     -385.07253   3      79       +3.0955
> iter:  23  02:21:20  -3.1   -1.9     -384.69207   3      87       +6.4811
> iter:  24  02:34:52  -3.3   -2.0     -385.24754   3      88       +7.6241
> iter:  25  02:50:57  -3.7   -2.0     -385.26475   3      88       +7.0205
> iter:  26  03:07:41  -3.7   -2.0     -385.66489   2      87       +3.0610
> iter:  27  03:21:46  -3.2   -2.0     -389.62171   4      85       +0.9680
> iter:  28  03:34:30  -3.1   -1.8     -386.12423   4      81       +1.0143
> iter:  29  03:48:47  -3.5   -2.0     -385.38057   2      85       +5.8926
> iter:  30  04:02:11  -2.8   -2.0     -385.85517   3      89       +4.5831
> iter:  31  04:15:21  -3.2   -2.1     -385.58585   3      84       +3.0330
> iter:  32  04:28:26  -3.7   -2.3     -385.91024   3      87       +1.3142
> iter:  33  04:43:05  -3.9   -2.2     -385.85257   2      86       +2.4404
> iter:  34  04:57:37  -4.0   -2.2     -385.66139   3      86       +3.5700
> iter:  35  05:09:57  -4.0   -2.2     -385.67805   3      87       +3.9093
> iter:  36  05:24:19  -4.0   -2.3     -386.09941   3      87       +2.0787
> iter:  37  05:37:53  -3.7   -2.3     -386.00383   3      85       +1.3486
> iter:  38  05:53:08  -4.0   -2.3     -386.39601   3      87       +0.5122
> iter:  39  06:06:55  -4.3   -2.3     -386.27124   3      86       +0.0745
> iter:  40  06:21:55  -4.0   -2.3     -386.87299   3      87       +0.5788
> iter:  41  06:36:27  -3.3   -2.1     -387.60792   3      84       +6.4104
> iter:  42  06:49:09  -2.7   -1.9     -386.38840   4      90       +3.4684
> iter:  43  07:01:22  -3.2   -2.3     -386.04822   2      87       +2.8532
> iter:  44  07:15:12  -4.2   -2.4     -386.09195   3      86       +2.2431
> iter:  45  07:30:59  -4.4   -2.5     -386.18305   3      86       +1.5041
> iter:  46  07:46:12  -4.2   -2.5     -386.24793   3      87       +0.4291
> iter:  47  08:00:42  -4.3   -2.5     -386.48612   3      86       +0.3694
> iter:  48  08:14:57  -4.1   -2.3     -386.39305   2      88       -0.1998
> iter:  49  08:26:40  -4.1   -2.4     -386.35993   3      86       -0.2232
> iter:  50  08:41:13  -4.5   -2.4     -386.61815   3      86       -0.2249
> iter:  51  08:56:46  -4.1   -2.3     -386.60128   3      86       -0.4814
> iter:  52  09:10:02  -3.7   -2.3     -387.17938   3      87       +1.4696
> iter:  53  09:24:09  -3.2   -2.1     -389.07504   3      85       +4.4734
> iter:  54  09:37:12  -2.8   -1.8     -386.03719   4      91       +2.5933
> iter:  55  09:48:21  -3.3   -2.4     -386.33233   3      86       +0.7041
> iter:  56  10:02:52  -4.1   -2.5     -386.46749   3      86       -0.1252
> iter:  57  10:17:04  -4.4   -2.4     -386.53925   3      86       -0.5424
> iter:  58  10:32:46  -4.8   -2.4     -386.62660   3      86       -0.7501
> iter:  59  10:47:49  -4.4   -2.4     -386.74976   2      86       -0.5536
> iter:  60  11:01:48  -3.7   -2.2     -386.53254   3      88       -0.2473
> iter:  61  11:15:21  -4.0   -2.4     -386.59474   2      87       +0.2267
> iter:  62  11:29:28  -3.9   -2.4     -386.63889   3      87       +0.6455
> iter:  63  11:43:19  -3.7   -2.4     -386.69679   3      86       +0.4081
> iter:  64  11:57:11  -3.8   -2.4     -386.55470   3      87       +0.2749
> iter:  65  12:09:57  -4.4   -2.5     -386.59329   2      87       -0.7122
> iter:  66  12:22:11  -4.6   -2.5     -386.63551   3      86       -0.8611
> iter:  67  12:37:11  -5.4   -2.5     -386.62811   2      87       -0.9584
> iter:  68  12:51:48  -4.8   -2.5     -386.69655   3      87       -1.1008
> iter:  69  13:05:08  -4.4   -2.5     -386.71227   3      86       -1.2879
> iter:  70  13:19:11  -4.3   -2.5     -387.44246   3      87       -0.0521
> iter:  71  13:32:33  -3.6   -2.1     -386.64776   2      89       -0.7978
> iter:  72  13:44:36  -3.6   -2.5     -386.82121   2      86       -0.4918
> iter:  73  13:59:04  -4.1   -2.4     -386.87175   2      86       -1.3233
> iter:  74  14:14:09  -4.7   -2.4     -386.92243   3      86       -1.7228
> iter:  75  14:28:34  -4.7   -2.4     -386.88163   3      86       -1.3311
> iter:  76  14:43:06  -4.0   -2.4     -388.29090   3      86       +0.8665
> iter:  77  14:56:16  -3.2   -1.9     -386.63091   2      90       -0.4516
> iter:  78  15:07:41  -3.5   -2.5     -386.82234   3      86       -1.1222
> iter:  79  15:22:12  -4.3   -2.5     -386.94937   3      86       -1.8089
> iter:  80  15:37:26  -4.8   -2.4     -387.07385   3      86       -2.3407
> iter:  81  15:52:01  -4.8   -2.4     -387.04163   3      86       -2.3219
> iter:  82  16:06:55  -4.8   -2.4     -387.03830   3      86       -1.9251
> iter:  83  16:20:15  -4.1   -2.4     -386.95442   3      88       -2.5346
> iter:  84  16:32:41  -4.3   -2.5     -386.98947   3      86       -2.0633
> iter:  85  16:46:15  -3.9   -2.4     -387.06997   3      86       -0.4980
> iter:  86  16:59:01  -3.6   -2.4     -386.94441   3      88       -1.0915
> iter:  87  17:12:54  -4.2   -2.6     -386.98158   3      87       -1.7153
> iter:  88  17:26:16  -4.6   -2.6     -387.01926   2      86       -2.0380
> iter:  89  17:41:04  -4.9   -2.6     -387.08347   3      87       -2.7291
> iter:  90  17:54:02  -4.8   -2.5     -387.08954   2      86       -2.6663
> iter:  91  18:08:16  -5.1   -2.6     -387.11956   3      87       -2.8966
> iter:  92  18:23:28  -4.9   -2.5     -387.13521   2      87       -3.2360
> iter:  93  18:36:02  -4.7   -2.5     -387.21655   3      86       -3.2253
> iter:  94  18:50:58  -4.6   -2.4     -387.34437   2      86       -2.8082
> iter:  95  19:04:50  -3.9   -2.3     -387.19091   3      88       -3.0073
> iter:  96  19:17:41  -4.0   -2.6     -387.38319   3      86       -2.4719
> iter:  97  19:32:08  -4.2   -2.5     -387.34047   3      87       -2.8436
> iter:  98  19:46:43  -4.8   -2.6     -387.39270   2      87       -3.3716
> iter:  99  20:01:44  -4.8   -2.6     -387.34310   2      87       -2.9814
> iter: 100  20:13:26  -4.5   -2.6     -387.41077   3      87       -3.5709
> iter: 101  20:26:22  -5.0   -2.7     -387.44504   3      87       -3.4402
> iter: 102  20:39:10  -4.6   -2.7     -387.64532   2      87       -3.8268
> iter: 103  20:51:43  -4.4   -2.6     -387.51613   2      87       -3.6762
> iter: 104  21:03:31  -5.0   -2.7     -387.54301   2      87       -3.7342
> iter: 105  21:16:01  -4.1   -2.7     -387.86687   2      87       -5.0638
> iter: 106  21:31:41  -4.0   -2.7     -388.27367   3      87       -6.1391
> iter: 107  21:44:43  -4.2   -2.8     -388.23793   2      87       -6.0004
> iter: 108  21:57:11  -4.0   -2.9     -388.40683   2      87       -6.6934
> iter: 109  22:08:48  -4.4   -3.0     -388.38514   2      87       -6.6476
> iter: 110  22:23:42  -5.4   -3.1     -388.36850   2      87       -6.6317
> iter: 111  22:37:06  -5.5   -3.1     -388.39089   2      87       -6.6596
> iter: 112  22:50:02  -5.8   -3.1     -388.38463   2      87       -6.6597
> iter: 113  23:01:49  -5.2   -3.1     -388.42354   2      87       -6.7322
> iter: 114  23:16:46  -5.5   -3.1     -388.44094   3      87       -6.8405
> iter: 115  23:28:39  -5.4   -3.1     -388.41845   2      87       -6.7703
> iter: 116  23:40:17  -5.6   -3.2     -388.42832   2      87       -6.7989
> iter: 117  23:53:47  -5.8   -3.2     -388.45256   2      87       -6.9023
> iter: 118  00:08:37  -5.7   -3.2     -388.48027   3      87       -6.9703
> iter: 119  00:21:24  -5.1   -3.1     -388.52383   2      87       -7.1725
> iter: 120  00:36:49  -5.8   -3.2     -388.53603   2      87       -7.2362
> iter: 121  00:48:28  -5.3   -3.3     -388.51165   2      87       -7.1469
> iter: 122  01:00:02  -5.9   -3.2     -388.51219   2      87       -7.1588
> iter: 123  01:11:03  -5.3   -3.2     -388.54448   2      87       -7.2845
> iter: 124  01:24:51  -5.1   -3.2     -388.58774   2      87       -7.5164
> iter: 125  01:38:22  -5.5   -3.3     -388.59147   2      87       -7.5289
> iter: 126  01:53:02  -5.8   -3.2     -388.59952   2      87       -7.5933
> iter: 127  02:04:29  -5.4   -3.3     -388.58404   2      87       -7.5291
> iter: 128  02:16:05  -5.1   -3.4     -388.60573   2      87       -7.6768
> iter: 129  02:27:47  -5.4   -3.4     -388.59560   2      87       -7.6186
> iter: 130  02:39:38  -5.2   -3.4     -388.61521   2      87       -7.7066
> iter: 131  02:55:27  -5.7   -3.4     -388.63135   3      87       -7.8201
> iter: 132  03:06:52  -5.2   -3.2     -388.61627   2      87       -7.8168
> iter: 133  03:18:46  -4.7   -3.4     -388.63960   2      87       -8.0639
> iter: 134  03:34:40  -5.7   -3.6     -388.64568   2      87       -8.1604
> iter: 135  03:46:28  -5.8   -3.6     -388.64505   2      87       -8.1193
> iter: 136  03:58:57  -5.3   -3.6     -388.64965   2      87       -8.2198
> iter: 137  04:11:13  -5.7   -3.6     -388.64957   2      87       -8.2011
> iter: 138  04:25:24  -6.4   -3.5     -388.64915   2      86       -8.1996
> iter: 139  04:37:43  -6.1   -3.6     -388.65104   2      87       -8.2695
> iter: 140  04:53:20  -6.9   -3.6     -388.65208   2      87       -8.2909
> iter: 141  05:08:37  -7.1   -3.6     -388.65255   2      87       -8.2805
> iter: 142  05:24:10  -7.1   -3.6     -388.65308   2      87       -8.3033
> iter: 143  05:35:59  -6.0   -3.7     -388.65577   2      87       -8.3856
> iter: 144  05:47:43  -6.1   -3.7     -388.65782   2      87       -8.3872
> iter: 145  06:02:25  -6.1   -3.6     -388.65993   2      87       -8.4564
> iter: 146  06:14:06  -6.2   -3.9     -388.65924   2      87       -8.4188
> iter: 147  06:26:01  -6.3   -3.7     -388.66091   2      87       -8.4411
> iter: 148  06:42:10  -7.0   -3.8     -388.66199   2      87       -8.4779
> iter: 149  07:02:01  -7.7   -3.9     -388.66239   2      87       -8.4933
> iter: 150  07:16:02  -7.1   -3.9     -388.66287   1      87       -8.5287
> iter: 151  07:28:31  -6.8   -3.9     -388.66236   2      86       -8.5292
> iter: 152  07:40:55  -6.5   -3.9     -388.66072   2      87       -8.4858
> iter: 153  07:51:39  -6.8   -3.9     -388.66107   1      87       -8.4954
> iter: 154  08:03:07  -6.3   -3.9     -388.66335   2      87       -8.5255
> iter: 155  08:14:46  -6.7   -4.0     -388.66334   2      87       -8.5333
> iter: 156  08:28:14  -6.5   -3.9     -388.66480   2      87       -8.5764
> iter: 157  08:40:32  -6.6   -3.8     -388.66489   2      86       -8.5471
> iter: 158  08:53:13  -7.0   -3.9     -388.66527   2      87       -8.5585
> iter: 159  09:07:37  -7.7   -3.9     -388.66529   2      87       -8.5549
> iter: 160  09:20:24  -7.0   -3.9     -388.66591   2      87       -8.5805
> iter: 161  09:32:21  -6.9   -3.9     -388.66552   2      87       -8.5551
> iter: 162  09:46:33  -6.9   -3.9     -388.66579   2      87       -8.5713
> iter: 163  10:00:20  -6.6   -3.8     -388.66618   2      86       -8.5721
> iter: 164  10:11:40  -6.7   -4.0     -388.66645   2      87       -8.5781
> iter: 165  10:25:57  -7.3   -4.0     -388.66633   2      87       -8.5810
> iter: 166  10:38:23  -7.0   -4.1     -388.66682   2      87       -8.5842
> iter: 167  10:49:55  -6.9   -4.0     -388.66651   2      87       -8.5830
> iter: 168  11:01:23  -6.4   -4.1     -388.66700   2      87       -8.5813
> iter: 169  11:12:45  -6.8   -4.1     -388.66710   2      86       -8.5899
> iter: 170  11:25:29  -7.3   -4.2     -388.66718   2      87       -8.5994
> iter: 171  11:38:56  -7.1   -4.3     -388.66752   2      87       -8.6028
> iter: 172  11:54:14  -7.5   -4.3     -388.66763   2      87       -8.6038
> iter: 173  12:05:59  -7.4   -4.2     -388.66753   2      87       -8.6044
> iter: 174  12:20:18  -7.6   -4.3     -388.66728   2      87       -8.6024
> iter: 175  12:33:31  -7.1   -4.1     -388.66753   2      86       -8.6009
> iter: 176  12:44:35  -7.4   -4.3     -388.66773   2      87       -8.6107
> iter: 177  12:57:34  -7.3   -4.3     -388.66806   2      87       -8.6217
> iter: 178  13:13:04  -7.7   -4.3     -388.66822   2      87       -8.6237
> iter: 179  13:24:25  -6.9   -4.2     -388.66790   2      87       -8.6155
> iter: 180  13:39:58  -7.6   -4.3     -388.66747   2      87       -8.6139
> 
> gpaw.KohnShamConvergenceError: Did not converge!
> 
> 
> 
> I have also tried to converge the geometry of the same system but performing in first place a non spin polarized calculation. 
> In this case, the first ionic step converges after 130 interactions (It took almost 24h running on 32 CPUs).
> 
> Convergence Criteria:
> iter:   1  11:53:55  +0.5            -401.49173   2      112    
> iter:   2  12:02:31  -1.2            -404.13792   2             
> iter:   3  12:16:23  -2.3            -404.98226   2             
> iter:   4  12:29:50  -2.3   -1.1     -452.20549   6      68     
> iter:   5  12:39:30  -2.4   -1.0     -396.41631   6      87     
> iter:   6  12:49:39  -2.0   -1.1     -402.49196   5      80     
> iter:   7  13:00:23  -2.2   -1.2     -397.33731   4      74     
> iter:   8  13:10:23  -2.5   -1.3     -389.39388   4      92     
> iter:   9  13:20:58  -2.7   -1.4     -386.93514   4      90     
> iter:  10  13:31:31  -2.5   -1.4     -437.53281   7      89     
> iter:  11  13:41:14  -2.3   -1.1     -384.86658   3      77     
> iter:  12  13:52:48  -2.9   -1.4     -385.02532   4      88     
> iter:  13  14:02:54  -3.0   -1.4     -384.26966   5      90     
> iter:  14  14:14:15  -3.3   -1.4     -383.80769   4      85     
> iter:  15  14:24:01  -3.0   -1.5     -384.32591   3      89     
> iter:  16  14:34:05  -2.4   -1.5     -400.37065   11     88     
> iter:  17  14:43:01  -2.1   -1.4     -384.33043   10     77     
> iter:  18  14:52:57  -3.0   -1.5     -383.98406   5      89     
> iter:  19  15:03:40  -3.3   -1.6     -387.49996   4      90     
> iter:  20  15:13:19  -3.2   -1.6     -384.05321   3      92     
> iter:  21  15:22:48  -3.3   -1.6     -384.33716   3      86     
> iter:  22  15:32:52  -2.9   -1.7     -388.63727   6      90     
> iter:  23  15:42:25  -2.4   -1.6     -383.54855   5      85     
> iter:  24  15:52:18  -3.5   -1.7     -383.26005   2      88     
> iter:  25  16:02:20  -3.8   -1.8     -382.85249   3      89     
> iter:  26  16:12:32  -3.7   -1.8     -383.96824   3      87     
> iter:  27  16:22:31  -3.6   -1.8     -383.39559   3      89     
> iter:  28  16:33:00  -3.2   -1.8     -391.21544   4      86     
> iter:  29  16:42:14  -2.8   -1.5     -383.64863   5      77     
> iter:  30  16:51:51  -3.7   -1.9     -382.82633   3      89     
> iter:  31  17:02:27  -3.9   -2.0     -382.88472   2      87     
> iter:  32  17:12:03  -4.2   -2.0     -382.46906   2      88     
> iter:  33  17:22:35  -4.6   -2.1     -382.49241   3      86     
> iter:  34  17:33:26  -3.7   -2.1     -383.39515   3      87     
> iter:  35  17:43:08  -3.3   -1.9     -382.41116   3      84     
> iter:  36  17:53:10  -4.0   -2.1     -382.24963   3      85     
> iter:  37  18:03:57  -4.4   -2.2     -382.27782   3      86     
> iter:  38  18:14:08  -4.4   -2.2     -382.07065   3      87     
> iter:  39  18:23:23  -4.6   -2.3     -382.00718   3      85     
> iter:  40  18:33:41  -4.3   -2.4     -381.85837   3      86     
> iter:  41  18:42:05  -4.4   -2.4     -381.88572   2      85     
> iter:  42  18:50:37  -4.8   -2.5     -381.88115   3      85     
> iter:  43  19:01:28  -4.6   -2.5     -381.83757   3      85     
> iter:  44  19:11:44  -4.4   -2.5     -381.94834   3      86     
> iter:  45  19:20:39  -4.8   -2.4     -381.85895   3      86     
> iter:  46  19:31:48  -5.5   -2.5     -381.83853   3      85     
> iter:  47  19:41:55  -5.1   -2.6     -381.83655   3      85     
> iter:  48  19:51:09  -5.0   -2.6     -381.81200   2      86     
> iter:  49  20:00:53  -5.5   -2.6     -381.81353   2      85     
> iter:  50  20:11:03  -5.2   -2.7     -381.84787   3      86     
> iter:  51  20:20:34  -5.3   -2.5     -381.81959   2      85     
> iter:  52  20:30:01  -5.5   -2.7     -381.80532   2      86     
> iter:  53  20:39:42  -5.6   -2.8     -381.81287   2      86     
> iter:  54  20:49:34  -5.1   -2.7     -381.85278   2      86     
> iter:  55  20:59:12  -5.1   -2.7     -381.81662   2      86     
> iter:  56  21:08:31  -5.8   -2.7     -381.80444   2      86     
> iter:  57  21:18:15  -5.8   -2.8     -381.81229   2      86     
> iter:  58  21:27:18  -5.7   -2.8     -381.80687   2      86     
> iter:  59  21:38:50  -6.6   -2.8     -381.80909   2      86     
> iter:  60  21:49:15  -5.9   -2.8     -381.80790   2      86     
> iter:  61  21:58:51  -5.2   -2.8     -381.83169   2      86     
> iter:  62  22:08:11  -5.2   -2.8     -381.81354   2      86     
> iter:  63  22:17:52  -5.6   -2.9     -381.81136   2      86     
> iter:  64  22:27:00  -5.8   -2.7     -381.80416   2      86     
> iter:  65  22:36:35  -5.8   -2.8     -381.80332   2      86     
> iter:  66  22:45:54  -6.3   -2.9     -381.80329   2      86     
> iter:  67  22:56:09  -6.0   -2.9     -381.81283   2      86     
> iter:  68  23:05:24  -5.7   -2.8     -381.80365   2      86     
> iter:  69  23:15:31  -5.9   -2.9     -381.81251   2      86     
> iter:  70  23:25:33  -5.5   -2.8     -381.81965   2      86     
> iter:  71  23:35:43  -5.2   -2.9     -381.81423   2      86     
> iter:  72  23:45:12  -5.3   -2.9     -381.82415   2      86     
> iter:  73  23:54:38  -5.3   -2.9     -381.80435   2      86     
> iter:  74  00:04:04  -5.5   -2.8     -381.80692   2      86     
> iter:  75  00:13:30  -6.1   -3.0     -381.80594   2      86     
> iter:  76  00:23:09  -5.9   -3.0     -381.81008   2      86     
> iter:  77  00:32:47  -5.7   -3.0     -381.80298   2      86     
> iter:  78  00:42:07  -6.2   -3.0     -381.80246   2      86     
> iter:  79  00:51:53  -6.1   -3.0     -381.81368   2      86     
> iter:  80  01:00:58  -5.9   -3.1     -381.80082   2      86     
> iter:  81  01:11:04  -6.3   -3.1     -381.80731   2      86     
> iter:  82  01:20:33  -6.1   -3.0     -381.80307   2      86     
> iter:  83  01:29:57  -6.0   -3.0     -381.81113   2      86     
> iter:  84  01:39:35  -5.7   -3.1     -381.80445   2      86     
> iter:  85  01:49:45  -6.0   -3.1     -381.80334   2      86     
> iter:  86  01:59:33  -5.7   -3.0     -381.81704   3      86     
> iter:  87  02:09:20  -5.6   -3.0     -381.80543   2      86     
> iter:  88  02:19:15  -5.8   -3.1     -381.80909   2      86     
> iter:  89  02:28:23  -6.2   -3.1     -381.80571   2      86     
> iter:  90  02:37:34  -6.1   -3.1     -381.80372   2      86     
> iter:  91  02:47:13  -6.5   -3.2     -381.80294   2      86     
> iter:  92  02:57:32  -6.7   -3.2     -381.81011   2      86     
> iter:  93  03:06:53  -6.2   -3.2     -381.80131   2      86     
> iter:  94  03:17:10  -6.3   -3.2     -381.80241   2      86     
> iter:  95  03:27:15  -5.8   -3.1     -381.80713   2      86     
> iter:  96  03:37:08  -5.7   -3.1     -381.80819   2      86     
> iter:  97  03:46:40  -5.7   -3.1     -381.81400   2      86     
> iter:  98  03:56:33  -5.6   -3.0     -381.83192   2      86     
> iter:  99  04:06:01  -5.6   -3.0     -381.80209   2      86     
> iter: 100  04:15:42  -7.1   -3.4     -381.80297   2      86     
> iter: 101  04:26:51  -7.4   -3.5     -381.80246   2      86     
> iter: 102  04:36:49  -7.3   -3.5     -381.80333   2      86     
> iter: 103  04:47:30  -6.7   -3.6     -381.80522   2      86     
> iter: 104  04:57:32  -6.7   -3.2     -381.80286   2      86     
> iter: 105  05:07:27  -6.1   -3.8     -381.81816   2      86     
> iter: 106  05:16:44  -6.0   -3.3     -381.80398   2      86     
> iter: 107  05:26:54  -7.0   -3.7     -381.80468   2      86     
> iter: 108  05:36:54  -7.3   -3.9     -381.80405   2      86     
> iter: 109  05:48:08  -8.3   -4.0     -381.80431   2      86     
> iter: 110  05:59:26  -8.7   -4.1     -381.80453   2      86     
> iter: 111  06:09:28  -7.5   -4.2     -381.80552   2      86     
> iter: 112  06:19:06  -7.3   -4.0     -381.80406   2      86     
> iter: 113  06:28:25  -7.8   -4.0     -381.80385   2      86     
> iter: 114  06:38:23  -8.3   -4.1     -381.80481   2      86     
> iter: 115  06:47:45  -8.5   -4.1     -381.80455   2      86     
> iter: 116  06:57:28  -8.5   -4.2     -381.80465   2      86     
> iter: 117  07:07:12  -7.9   -4.2     -381.80487   2      86     
> iter: 118  07:16:36  -8.0   -4.1     -381.80465   2      86     
> iter: 119  07:26:33  -8.6   -4.2     -381.80468   2      86     
> iter: 120  07:36:41  -8.3   -4.2     -381.80396   2      86     
> iter: 121  07:45:58  -8.4   -4.1     -381.80435   2      86     
> iter: 122  07:55:44  -8.0   -4.2     -381.80516   2      86     
> iter: 123  08:05:06  -7.8   -4.0     -381.80462   2      86     
> iter: 124  08:14:26  -8.5   -4.2     -381.80453   2      86     
> iter: 125  08:24:27  -8.2   -4.3     -381.80440   2      86     
> iter: 126  08:33:26  -8.6   -4.2     -381.80450   2      86     
> iter: 127  08:43:06  -8.7   -4.3     -381.80495   2      86     
> iter: 128  08:53:05  -8.1   -4.3     -381.80412   2      86     
> iter: 129  09:02:55  -8.1   -4.2     -381.80510   2      86     
> iter: 130  09:12:09  -8.1   -3.9     -381.80441   2      86     
> iter: 131  09:21:45  -9.1   -4.2     -381.80456   2      86
> 
> 
> Please, I would appreciate any advice on how to improve convergence in my systems. I have found 
> similar convergence issues in other oxides as MnxOy or Ti2O3. 
> 
> Thanks in advance,
> 
> Monica
> _______________________________________________
> gpaw-users mailing list
> gpaw-users at listserv.fysik.dtu.dk
> https://listserv.fysik.dtu.dk/mailman/listinfo/gpaw-users

-------------------------------------------------------------------------------------------------------------
Lars C. Grabow
Assistant Professor of Chemical and Biomolecular Engineering
University of Houston
S341 Engineering Building 1
Houston, TX 77204-4004
email: grabow at uh.edu			web: http://www.chee.uh.edu/faculty/grabow
phone: (+1) 713-743-9899		fax: (+1) 713-743-4323



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