想计算n(O/M)-n(M)-n(O)
INCAR的设置中保持三个计算的NGX NGY NGZ相同
三个POSCAR 盒子大小一致。M原子和O原子位置也分别保持与O/M的一致。
但是不论用chgsum.pl还是chgdiff.pl做差分,都会有如下提示:
Atoms in file1: 22, Atoms in file2: 20
Points in file1: 414720, Points in file2: 338688
Number of points not same in two files! at chgdiff.pl line 54, line 29.