| 4 | 1/1 | 返回列表 |
| 查看: 3485 | 回復(fù): 3 | |||
| 【懸賞金幣】回答本帖問題,作者h(yuǎn)edge80將贈送您 50 個(gè)金幣 | |||
hedge80金蟲 (小有名氣)
|
[求助]
too many bands are not converged 已有1人參與
|
||
|
剛學(xué)qe,在做si的能帶和聲子計(jì)算時(shí)沒有任何錯(cuò)誤,但用si類似的輸入文件做ge和gaas時(shí),碰到問題了。 輸入文件如下: +++++++++++++++++++++++++++++++ &control calculation = 'vc-relax' prefix = 'gaas' outdir = './outdir' pseudo_dir = '/home/work/pseudos' etot_conv_thr = 1e-5 forc_conv_thr = 1e-4 / &system ibrav = 2 celldm(1) = 10.9 nat = 2 ntyp = 2 ecutwfc = 50 ecutrho = 600 / &electrons conv_thr = 1.0e-14 / &ions / &cell cell_dofree = 'ibrav' / atomic_species ga 69.723 ga.pbe-dn-rrkjus_psl.1.0.0.upf as 74.9216 as.pbe-n-rrkjus_psl.1.0.0.upf atomic_positions (alat) ga 0.00 0.00 0.00 0 0 0 as 0.25 0.25 0.25 0 0 0 k_points (automatic) 12 12 12 0 0 0 +++++++++++++++++++++++++++++++ &control calculation = 'scf' prefix = 'gaas' outdir = './outdir' pseudo_dir = '/home/work/pseudos' etot_conv_thr = 1e-5 forc_conv_thr = 1e-4 / &system ibrav = 2 celldm(1) = 10.8704558116 nat = 2 ntyp = 2 ecutwfc = 50 ecutrho = 600 / &electrons conv_thr = 1.0e-14 / &ions / &cell cell_dofree = 'ibrav' / atomic_species ga 69.723 ga.pbe-dn-rrkjus_psl.1.0.0.upf as 74.9216 as.pbe-n-rrkjus_psl.1.0.0.upf atomic_positions (alat) ga 0.00 0.00 0.00 as 0.25 0.25 0.25 k_points (automatic) 12 12 12 1 1 1 ++++++++++++++++++++++++++++++++ &control calculation = 'nscf' prefix = 'gaas' outdir = './outdir' pseudo_dir = '/home/work/pseudos' etot_conv_thr = 1e-5 forc_conv_thr = 1e-4 / &system ibrav = 2 celldm(1) = 10.8704558116 nat = 2 ntyp = 2 ecutwfc = 50 ecutrho = 600 nbnd = 8 occupations = "tetrahedra' / &electrons conv_thr = 1.0e-14 / &ions / &cell cell_dofree = 'ibrav' / atomic_species ga 69.723 ga.pbe-dn-rrkjus_psl.1.0.0.upf as 74.9216 as.pbe-n-rrkjus_psl.1.0.0.upf atomic_positions (alat) ga 0.00 0.00 0.00 as 0.25 0.25 0.25 k_points (automatic) 12 12 12 1 1 1 ++++++++++++++++++++++++++ 前面兩步計(jì)算好像沒有問題,但到了nscf計(jì)算,就了出現(xiàn)不收斂的問題。"too many bands are not converged" 之前做ge的計(jì)算時(shí),也出現(xiàn)一樣的問題,把贗勢從ge.pbe-dn-rrkjus_psl.1.0.0.upf改成ge.pbe-n-rrkjus_psl.1.0.0.upf就沒有問題, 計(jì)算結(jié)果也可以和教科書一致。這是什么原因呢? 盼高手給以解答。 另外,雖然使用ge.pbe-dn-rrkjus_psl.1.0.0.upf計(jì)算vc-relax時(shí)沒有出現(xiàn)問題,但迭代步數(shù)遠(yuǎn)多于使用ge.pbe-n-rrkjus_psl.1.0.0.upf。這是什么原因呢? |
金蟲 (正式寫手)

專家顧問 (著名寫手)
Ab Initio Amateur
![]() |
專家經(jīng)驗(yàn): +224 |

版主 (知名作家)
認(rèn)真做事,踏實(shí)做人

| 4 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 293求調(diào)劑 +4 | 是樂渝哇 2026-03-03 | 4/200 |
|
|---|---|---|---|---|
|
[考研] 0703 總分319求調(diào)劑 +4 | Xinyuu 2026-03-02 | 4/200 |
|
|
[考研]
085600 英一數(shù)二272求調(diào)劑
5+6
|
vida_a 2026-03-01 | 44/2200 |
|
|
[考研] 292求調(diào)劑 +3 | sgbl 2026-03-03 | 3/150 |
|
|
[基金申請] 沒有青基直接申請面上,感覺自己瘋了 +5 | kevin63t 2026-03-02 | 6/300 |
|
|
[考研] 環(huán)境調(diào)劑 +5 | 柒槿levana 2026-03-01 | 5/250 |
|
|
[考研] 材料學(xué)碩318求調(diào)劑 +11 | February_Feb 2026-03-01 | 11/550 |
|
|
[考研] 化學(xué)0703求調(diào)劑 學(xué)碩 理/工科均可 總分279 +3 | 1一11 2026-03-03 | 5/250 |
|
|
[考研] 291求調(diào)劑 +3 | MuoLuo1312 2026-03-02 | 6/300 |
|
|
[考研]
材料325求調(diào)劑
30+3
|
mariusuki 2026-03-02 | 7/350 |
|
|
[考研] 288求調(diào)劑 +3 | 少71.8 2026-03-02 | 5/250 |
|
|
[考研] 0856求調(diào)劑285 +11 | 呂仔龍 2026-02-28 | 11/550 |
|
|
[考研] 289求調(diào)劑 +8 | yang婷 2026-03-02 | 9/450 |
|
|
[考研] 0856化工專碩求調(diào)劑 +15 | 董boxing 2026-03-01 | 15/750 |
|
|
[考博] 誠招農(nóng)業(yè)博士 +3 | 心欣向榮 2026-02-28 | 3/150 |
|
|
[考研] 調(diào)劑 +3 | 13853210211 2026-03-02 | 4/200 |
|
|
[基金申請]
|
Doma 2026-03-01 | 7/350 |
|
|
[考研] 272求調(diào)劑 +6 | 田智友 2026-02-28 | 6/300 |
|
|
[考博] 26申博 +4 | 想申博! 2026-02-26 | 6/300 |
|
|
[論文投稿]
求助coordination chemistry reviews 的寫作模板
10+3
|
ljplijiapeng 2026-02-27 | 4/200 |
|