24小时热门版块排行榜    

查看: 1681  |  回复: 11
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

mouwat

铁虫 (初入文坛)

[求助] 有關聲子eigen value的計算

我用tnlo_2計算一層平面結構時是OK的  但在改變原子位置使其有點皺摺時就無法計算了  err檔中?K沒有對錯誤的敘述  請問該怎麼辦呢
回复此楼

» 猜你喜欢

» 本主题相关价值贴推荐,对您同样有帮助:

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

oxox6085

专家顾问 (正式写手)

【答案】应助回帖

★ ★
感谢参与,应助指数 +1
franch: 金币+2, 谢谢回帖交流 2012-09-24 12:59:43
我有一个想法:
本身能量的三阶导即要求之前结构优化要严格的收敛,随意改动原子的位置后,原来收敛的体系现在必然就不收敛了。建议楼主尝试重新优化具有褶皱的体系,可以利用一些优化技巧,如:只充分优化晶胞不改变原子相对位置从而达到收敛,或者锁定原子z方向的坐标,等等。
有些事情可能只有计算机模拟能告诉我们答案
9楼2012-09-24 00:03:38
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 12 个回答

souledge

专家顾问 (著名写手)

★ ★
franch: 金币+2, 专家考核, 谢谢回帖交流 2012-09-24 12:57:28
看楼主的语言习惯是港台的,我还是用英语回复好了。
The error info can be found at the end of xxx.log file if you ran Abinit with command: abinit < xxx.files >& xxx.log, otherwise, it displays in your terminal.
I am not sure which kind of "error" you met, or what means "cannot calculate". By guessing, displacements of ion(s) broke the symmetry, thus the convergence of response function may become more difficult.
思想重于技巧,内涵重于表象
2楼2012-09-23 00:16:06
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

mouwat

铁虫 (初入文坛)

???????:
2?: Originally posted by souledge at 2012-09-23 00:16:06
??????????????????????????????????????
The error info can be found at the end of xxx.log file if you ran Abinit with command: abinit < xxx.files >& xxx.log, otherwise, it display ...

???w??????  ?x?x????N??

sorry?????o?????Y??

err files:
mpiexec: Warning: tasks 2,4-15 exited with status 1.

tnlo_2????????岽??r???????????

input files??????
xred        0.33333 0.66667  0.5
               0.66667 0.33333  0.5
to
xred        0.33333 0.66667  0.5026208779
               0.66667 0.33333  0.4973791221
3楼2012-09-23 00:42:40
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

souledge

专家顾问 (著名写手)

???????:
3?: Originally posted by mouwat at 2012-09-23 00:42:40
???w??????  ?x?x????N??

sorry?????o?????Y??

err files:
mpiexec: Warning: tasks 2,4-15 exited with status 1.

tnlo_2????????岽??r???????????

input files??????
xred         ...

Actually, the error info you provided was not really the proper one, since it was just a stop signal from MPI code, instead of that from Abinit.
Why don't you attach your full log or output file here? You can edit your first post and upload the file as accessory.
Further, you may download my tutorial about Abinit from the ??????? broad. That will give you some idea for finding error info from Abinit.
?????????δ???????????????????????MPI??????????????????Abinit???
??????log???????????????????????Σ?????????????????????????
????????????????????????????Abinit??????????????β???Abinit??????????
思想重于技巧,内涵重于表象
4楼2012-09-23 10:11:45
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
信息提示
请填处理意见