<div>Dear Andrea:</div>
<div>      Thank you for your help.When caculating el-ph interaction of the doped material, I used the smearing .I set the degauss=0.05.The total energy does not converge,so I set the different value to test.but it does not converge 
still.So I set the different value of K-point to test again,the result is not very good. I want to know how to deal with this program.In addtion, I want to know what the relationship between the value of degauss and K-point.Thank
 you!</div>
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<div>                                                                                  sincerely</div>
<div>                                                                                            Wang yanchao </div>