Dear Prof. Blaha:<br><br>Sorry! I have to ask again!<br>Last time I attach a big file to the question and probably most parts of the file are deleted.<br><br>I copy the end of the file *.output0_grr at following in which many values are ****. I don&#39;t know where is the problem. Please check it. Thanks!<br>
<br>  <br><br><br>                        ------------------------------<br>                                 T O T A L   E N E R G Y<br>                              ------------------------------<br><br><br>   1. DENSITY-POTENTIAL INTEGRALS     (H)<br>
<br>         SPHERE=  1  Ni1       <br><br>            L= 0   :    55.426488     SPHERE CHARGE<br>            L= 2   :    -0.000459     SPHERE CHARGE<br>            L= 4   :    -0.353018     SPHERE CHARGE<br>            L= 4   :    -1.015252     SPHERE CHARGE<br>
            L= 6   :    -0.006943     SPHERE CHARGE<br>            L= 6   :    -0.004000     SPHERE CHARGE<br>            L= 6   :    -0.004799     SPHERE CHARGE<br>            TOTAL=      54.042018<br><br><br>         SPHERE=  2  Ni2       <br>
<br>            L= 0   :    55.426487     SPHERE CHARGE<br>            L= 2   :    -0.000459     SPHERE CHARGE<br>            L= 4   :    -0.353018     SPHERE CHARGE<br>            L= 4   :    -1.015252     SPHERE CHARGE<br>
            L= 6   :    -0.006943     SPHERE CHARGE<br>            L= 6   :    -0.004000     SPHERE CHARGE<br>            L= 6   :    -0.004799     SPHERE CHARGE<br>            TOTAL=      54.042017<br><br><br>         SPHERE=  3  O         <br>
<br>            L= 0   :    30.073783     SPHERE CHARGE<br>            L= 1   :    -0.009964     SPHERE CHARGE<br>            L= 2   :    -0.000070     SPHERE CHARGE<br>            L= 3   :    -0.001574     SPHERE CHARGE<br>
            L= 3   :    -0.002201     SPHERE CHARGE<br>            L= 4   :    -0.011482     SPHERE CHARGE<br>            L= 4   :    -0.032650     SPHERE CHARGE<br>            L= 5   :    -0.000015     SPHERE CHARGE<br>            L= 5   :    -0.000797     SPHERE CHARGE<br>
            L= 6   :    -0.000026     SPHERE CHARGE<br>            L= 6   :    -0.000016     SPHERE CHARGE<br>            L= 6   :    -0.000025     SPHERE CHARGE<br>            TOTAL=      30.014963<br><br><br>         SPHERE=  4  O         <br>
<br>            L= 0   :    30.073783     SPHERE CHARGE<br>            L= 1   :    -0.009964     SPHERE CHARGE<br>            L= 2   :    -0.000070     SPHERE CHARGE<br>            L= 3   :    -0.001574     SPHERE CHARGE<br>
            L= 3   :    -0.002201     SPHERE CHARGE<br>            L= 4   :    -0.011482     SPHERE CHARGE<br>            L= 4   :    -0.032650     SPHERE CHARGE<br>            L= 5   :    -0.000015     SPHERE CHARGE<br>            L= 5   :    -0.000797     SPHERE CHARGE<br>
            L= 6   :    -0.000026     SPHERE CHARGE<br>            L= 6   :    -0.000016     SPHERE CHARGE<br>            L= 6   :    -0.000025     SPHERE CHARGE<br>            TOTAL=      30.014963<br>     <br><br>    PLANE WAVE CONTRIBUTION<br>
<br>            TOTAL=  *************<br><br><br>   2. CONSTANT TERMS     (H)<br><br>         SPHERE  1   Ni1         =   -14.458122<br>         SPHERE  2   Ni2         =   -14.458123<br>         SPHERE  3   O           =    -2.032486<br>
   --------------------------------------------------------------------------------<br><br>   TOTAL VALUE =**************     (H)<br>:GRR  : &lt;AVERAGE GRAD RHO / RHO&gt;  = **********************<br>       ELS_POTENTIAL_AT Z=0 and Z=0.5:   0.03323   0.03323<br>
       ELS_POTENTIAL_AT Y=0 and Y=0.5:   0.00000   0.00000<br>:VZERO:v0,v0c,v0x**********   0.03323********** v5,v5c,v5x**********   0.03323**********<br>:VZERY:v0,v0c,v0x**********   0.00000********** v5,v5c,v5x**********   0.00000**********<br>
:VZERX:v0,v0c,v0x**********   0.07609********** v5,v5c,v5x**********   0.07609**********<br><br><br>   =====&gt;&gt;&gt; CPU-TIME SUMMARY<br>            TOTAL CPU-TIME USED :     2.6     100. PERCENT<br>            TIME MULTIPOLMOMENTS:     0.1       2. PERCENT<br>
            TIME COULOMB POT INT:     0.0       1. PERCENT<br>            TIME COULOMB POT RMT:     0.0       0. PERCENT<br>            TIME COULOMB POT SPH:     0.1       3. PERCENT<br>            TIME XCPOT SPHERES  :     1.1      45. PERCENT<br>
            TIME XCPOT INTERST  :     0.9      36. PERCENT<br>            TIME TOTAL ENERGY   :     0.1       4. PERCENT<br>            TIME REAN0, REAN3   :     0.09      0.01<br>            TIME REANALYSE      :     0.2      10. PERCENT<br>
<br>The dayfile look like this:<br><br><pre>    start         (Tue Feb 14 11:53:57 CST 2012) with lapw0 (100/99 to go)

    cycle 1         (Tue Feb 14 11:53:57 CST 2012)         (100/99 to go)

&gt;   lapw0 -grr         (11:53:57) 2.5u 0.2s 0:02.89 98.6% 0+0k 0+7320io 0pf+0w
&gt;   lapw0         (11:54:00) 0.0u 0.0s 0:00.00 0.0% 0+0k 0+16io 0pf+0w

&gt;   stop error<br><br>Thanks again!<br><br>best regards<br><br></pre><br>