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xiongxiong5712新蟲 (小有名氣)
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[求助]
請(qǐng)教如何加快siesta的收斂速度
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最近算一個(gè)252個(gè)原子的納米線,速度挺慢的,算了3、4天了還在算,循環(huán)了100多個(gè)CG,原子受力不斷震蕩,每個(gè)CG中達(dá)到上百個(gè)scf循環(huán),查了一下內(nèi)存應(yīng)該沒有問題,我覺得是不是我的參數(shù)設(shè)置不合理造成的,因?yàn)槌薉M.MixingWeight和DM.NumberPulay是我設(shè)置的,其他參數(shù)基本都是默認(rèn)值,想請(qǐng)教各位高手,除了修改DM.MixingWeight和DM.NumberPulay以外,還應(yīng)該調(diào)哪些參數(shù)來加快收斂速度呢?看了手冊(cè)也不知道該從哪下手,下面是我的fdf文件,麻煩各位幫忙看看,不甚感激: SystemName 2-001331 SystemLabel 2-001331 NumberOfAtoms 252 NumberOfSpecies 2 %block ChemicalSpeciesLabel 1 14 Si 2 7 N %endblock ChemicalSpeciesLabel LatticeConstant 1 Ang %block LatticeVectors 33.164442837925073 -19.147500000000008 0.000000000000002 0.000000000000000 38.295000000000002 0.000000000000002 0.000000000000000 0.000000000000000 5.622000000000000 %endblock LatticeVectors %block kgrid_Monkhorst_Pack 1 0 0 0 0 1 0 0 0 0 1 0 %endblock kgrid_Monkhorst_Pack AtomicCoordinatesFormat Fractional %block AtomicCoordinatesAndAtomicSpecies 0.0703604909257081 0.1948600339469900 0.9690000000000010 2 0.0650885233059144 0.0646829873351612 0.2340000000000000 2 0.0079079514296906 0.0782684423553988 0.9690000000000010 2 0.1380849980415190 0.0004055359707532 0.2340000000000000 2 0.1244995430212820 0.1324074944509720 0.9690000000000010 2 0.2023624494059270 0.1376794620707660 0.2339999999999990 2 0.1948600339469900 0.0703604909257082 0.4690000000000010 2 0.0646829873351612 0.0650885233059145 0.7340000000000000 2 0.0782684423553987 0.0079079514296906 0.4690000000000010 2 0.0004055359707532 0.1380849980415190 0.7340000000000000 2 0.1324074944509720 0.1244995430212820 0.4690000000000010 2 0.1376794620707660 0.2023624494059270 0.7339999999999990 2 0.0000000000000000 0.0000000000000000 0.0000000000000000 2 0.0000000000000000 0.0000000000000000 0.5000000000000000 2 0.0675893284588936 0.1351786569177870 0.6500000000000000 2 0.1351786569177870 0.0675893284588936 0.1500000000000000 2 0.2731284763023880 0.1948600339469900 0.9690000000000010 2 0.2678565086825950 0.0646829873351612 0.2339999999999990 2 0.2106759368063710 0.0782684423553988 0.9690000000000010 2 0.3408529834182000 0.0004055359707532 0.2339999999999990 2 0.3272675283979630 0.1324074944509720 0.9690000000000010 2 0.4051304347826080 0.1376794620707660 0.2339999999999990 2 0.3976280193236710 0.0703604909257082 0.4690000000000010 2 0.2674509727118420 0.0650885233059144 0.7339999999999990 2 0.2810364277320790 0.0079079514296906 0.4690000000000010 2 0.2031735213474340 0.1380849980415190 0.7339999999999990 2 0.3351754798276530 0.1244995430212820 0.4690000000000010 2 0.3404474474474470 0.2023624494059270 0.7339999999999990 2 0.2027679853766800 0.0000000000000000 -0.0000000000000001 2 0.2027679853766800 0.0000000000000000 0.4999999999999990 2 0.2703573138355740 0.1351786569177870 0.6500000000000000 2 0.3379466422944680 0.0675893284588936 0.1499999999999990 2 0.4758964616790690 0.1948600339469900 0.9690000000000010 2 0.4706244940592760 0.0646829873351611 0.2339999999999990 2 0.4134439221830520 0.0782684423553987 0.9690000000000010 2 0.5436209687948810 0.0004055359707531 0.2339999999999990 2 0.5300355137746430 0.1324074944509720 0.9690000000000010 2 0.6078984201592890 0.1376794620707660 0.2339999999999990 2 0.6003960047003520 0.0703604909257081 0.4690000000000010 2 0.4702189580885220 0.0650885233059143 0.7339999999999990 2 0.4838044131087600 0.0079079514296905 0.4690000000000010 2 0.4059415067241140 0.1380849980415190 0.7339999999999990 2 0.5379434652043340 0.1244995430212820 0.4690000000000010 2 0.5432154328241270 0.2023624494059270 0.7339999999999990 2 0.4055359707533610 -0.0000000000000001 -0.0000000000000001 2 0.4055359707533610 -0.0000000000000001 0.4999999999999990 2 0.4731252992122550 0.1351786569177870 0.6499999999999990 2 0.5407146276711490 0.0675893284588936 0.1499999999999990 2 0.0703604909257081 0.3976280193236710 0.9690000000000010 2 0.0650885233059144 0.2674509727118420 0.2339999999999990 2 0.0079079514296906 0.2810364277320790 0.9690000000000010 2 0.1380849980415190 0.2031735213474340 0.2339999999999990 2 0.1244995430212820 0.3351754798276530 0.9690000000000010 2 0.2023624494059270 0.3404474474474470 0.2339999999999990 2 0.1948600339469900 0.2731284763023890 0.4690000000000010 2 0.0646829873351612 0.2678565086825950 0.7339999999999990 2 0.0782684423553987 0.2106759368063710 0.4690000000000010 2 0.0004055359707532 0.3408529834182000 0.7339999999999990 2 0.1324074944509720 0.3272675283979630 0.4690000000000010 2 0.1376794620707660 0.4051304347826080 0.7339999999999990 2 0.0000000000000000 0.2027679853766810 -0.0000000000000001 2 0.0000000000000000 0.2027679853766810 0.4999999999999990 2 0.0675893284588936 0.3379466422944680 0.6500000000000000 2 0.1351786569177870 0.2703573138355740 0.1499999999999990 2 0.2731284763023880 0.3976280193236710 0.9690000000000010 2 0.2678565086825950 0.2674509727118420 0.2339999999999990 2 0.2106759368063710 0.2810364277320790 0.9690000000000010 2 0.3408529834182000 0.2031735213474340 0.2339999999999990 2 0.3272675283979630 0.3351754798276530 0.9690000000000010 2 0.4051304347826080 0.3404474474474470 0.2339999999999990 2 0.3976280193236710 0.2731284763023890 0.4690000000000010 2 0.2674509727118420 0.2678565086825950 0.7339999999999990 2 0.2810364277320790 0.2106759368063710 0.4690000000000010 2 0.2031735213474340 0.3408529834182000 0.7339999999999990 2 0.3351754798276530 0.3272675283979630 0.4690000000000010 2 0.3404474474474470 0.4051304347826080 0.7339999999999990 2 0.2027679853766800 0.2027679853766810 -0.0000000000000001 2 0.2027679853766800 0.2027679853766810 0.4999999999999990 2 0.2703573138355740 0.3379466422944680 0.6499999999999990 2 0.3379466422944680 0.2703573138355740 0.1499999999999990 2 0.4758964616790690 0.3976280193236710 0.9690000000000010 2 0.4706244940592760 0.2674509727118420 0.2339999999999990 2 0.4134439221830520 0.2810364277320790 0.9690000000000010 2 0.5436209687948810 0.2031735213474340 0.2339999999999990 2 0.5300355137746430 0.3351754798276530 0.9690000000000010 2 0.6078984201592890 0.3404474474474470 0.2339999999999990 2 0.6003960047003520 0.2731284763023890 0.4690000000000010 2 0.4702189580885220 0.2678565086825950 0.7339999999999990 2 0.4838044131087600 0.2106759368063710 0.4690000000000010 2 0.4059415067241140 0.3408529834182000 0.7339999999999990 2 0.5379434652043340 0.3272675283979630 0.4690000000000010 2 0.5432154328241270 0.4051304347826080 0.7339999999999990 2 0.4055359707533610 0.2027679853766810 -0.0000000000000002 2 0.4055359707533610 0.2027679853766810 0.4999999999999990 2 0.4731252992122550 0.3379466422944680 0.6499999999999990 2 0.5407146276711490 0.2703573138355740 0.1499999999999990 2 0.0703604909257081 0.6003960047003520 0.9690000000000010 2 0.0650885233059144 0.4702189580885230 0.2339999999999990 2 0.0079079514296906 0.4838044131087600 0.9690000000000010 2 0.1380849980415190 0.4059415067241150 0.2339999999999990 2 0.1244995430212820 0.5379434652043340 0.9690000000000010 2 0.2023624494059270 0.5432154328241280 0.2339999999999990 2 0.1948600339469900 0.4758964616790700 0.4690000000000010 2 0.0646829873351612 0.4706244940592760 0.7339999999999990 2 0.0782684423553987 0.4134439221830520 0.4690000000000010 2 0.0004055359707532 0.5436209687948810 0.7339999999999990 2 0.1324074944509720 0.5300355137746440 0.4690000000000010 2 0.1376794620707660 0.6078984201592890 0.7339999999999990 2 0.0000000000000000 0.4055359707533620 -0.0000000000000001 2 0.0000000000000000 0.4055359707533620 0.4999999999999990 2 0.0675893284588936 0.5407146276711490 0.6499999999999990 2 0.1351786569177870 0.4731252992122550 0.1499999999999990 2 0.2731284763023880 0.6003960047003520 0.9690000000000010 2 0.2678565086825950 0.4702189580885230 0.2339999999999990 2 0.2106759368063710 0.4838044131087600 0.9690000000000010 2 0.3408529834182000 0.4059415067241150 0.2339999999999990 2 0.3272675283979630 0.5379434652043340 0.9690000000000010 2 0.4051304347826080 0.5432154328241280 0.2339999999999990 2 0.3976280193236710 0.4758964616790700 0.4690000000000010 2 0.2674509727118420 0.4706244940592760 0.7339999999999990 2 0.2810364277320790 0.4134439221830520 0.4690000000000010 2 0.2031735213474340 0.5436209687948810 0.7339999999999990 2 0.3351754798276530 0.5300355137746440 0.4690000000000010 2 0.3404474474474470 0.6078984201592890 0.7339999999999990 2 0.2027679853766800 0.4055359707533620 -0.0000000000000002 2 0.2027679853766800 0.4055359707533620 0.4999999999999990 2 0.2703573138355740 0.5407146276711490 0.6499999999999990 2 0.3379466422944680 0.4731252992122550 0.1499999999999990 2 0.4758964616790690 0.6003960047003520 0.9690000000000010 2 0.4706244940592760 0.4702189580885230 0.2339999999999990 2 0.4134439221830520 0.4838044131087600 0.9690000000000010 2 0.5436209687948810 0.4059415067241150 0.2339999999999990 2 0.5300355137746430 0.5379434652043340 0.9690000000000010 2 0.6078984201592890 0.5432154328241280 0.2339999999999990 2 0.6003960047003520 0.4758964616790700 0.4690000000000010 2 0.4702189580885220 0.4706244940592760 0.7339999999999990 2 0.4838044131087600 0.4134439221830520 0.4690000000000010 2 0.4059415067241140 0.5436209687948810 0.7339999999999990 2 0.5379434652043340 0.5300355137746440 0.4690000000000010 2 0.5432154328241270 0.6078984201592890 0.7339999999999990 2 0.4055359707533610 0.4055359707533620 -0.0000000000000003 2 0.4055359707533610 0.4055359707533620 0.4999999999999990 2 0.4731252992122550 0.5407146276711490 0.6499999999999990 2 0.5407146276711490 0.4731252992122550 0.1499999999999990 2 0.1033102885494180 0.0163430996213604 0.1980000000000000 1 0.0339636375505939 0.0519086042564302 0.9930000000000010 1 0.1864248857553200 0.0869671889280583 0.1980000000000000 1 0.1508593811202500 0.1848230186708440 0.9930000000000010 1 0.1158007964486220 0.0994576968272623 0.1980000000000000 1 0.0179449667058363 0.1688043478260870 0.9930000000000010 1 0.0163430996213604 0.1033102885494180 0.6980000000000000 1 0.0519086042564302 0.0339636375505939 0.4930000000000010 1 0.0869671889280582 0.1864248857553200 0.6980000000000000 1 0.1848230186708440 0.1508593811202500 0.4930000000000010 1 0.0994576968272622 0.1158007964486220 0.6980000000000000 1 0.1688043478260870 0.0179449667058363 0.4930000000000010 1 0.3060782739260990 0.0163430996213604 0.1980000000000000 1 0.2367316229272740 0.0519086042564302 0.9930000000000010 1 0.3891928711320010 0.0869671889280583 0.1980000000000000 1 0.3536273664969310 0.1848230186708440 0.9930000000000010 1 0.3185687818253030 0.0994576968272623 0.1980000000000000 1 0.2207129520825170 0.1688043478260870 0.9930000000000010 1 0.2191110849980410 0.1033102885494180 0.6980000000000000 1 0.2546765896331110 0.0339636375505938 0.4930000000000010 1 0.2897351743047390 0.1864248857553200 0.6980000000000000 1 0.3875910040475250 0.1508593811202500 0.4930000000000010 1 0.3022256822039430 0.1158007964486220 0.6980000000000000 1 0.3715723332027670 0.0179449667058363 0.4930000000000010 1 0.5088462593027800 0.0163430996213604 0.1980000000000000 1 0.4394996083039550 0.0519086042564302 0.9930000000000010 1 0.5919608565086820 0.0869671889280582 0.1980000000000000 1 0.5563953518736120 0.1848230186708440 0.9930000000000010 1 0.5213367672019840 0.0994576968272621 0.1980000000000000 1 0.4234809374591980 0.1688043478260870 0.9930000000000010 1 0.4218790703747220 0.1033102885494180 0.6980000000000000 1 0.4574445750097910 0.0339636375505938 0.4930000000000010 1 0.4925031596814190 0.1864248857553200 0.6980000000000000 1 0.5903589894242060 0.1508593811202500 0.4930000000000010 1 0.5049936675806230 0.1158007964486220 0.6980000000000000 1 0.5743403185794480 0.0179449667058363 0.4930000000000010 1 0.1033102885494180 0.2191110849980410 0.1980000000000000 1 0.0339636375505939 0.2546765896331110 0.9930000000000010 1 0.1864248857553200 0.2897351743047390 0.1980000000000000 1 0.1508593811202500 0.3875910040475250 0.9930000000000010 1 0.1158007964486220 0.3022256822039430 0.1980000000000000 1 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0.4394996083039550 0.4930000000000010 1 0.2897351743047390 0.5919608565086820 0.6980000000000000 1 0.3875910040475250 0.5563953518736120 0.4930000000000010 1 0.3022256822039430 0.5213367672019840 0.6980000000000000 1 0.3715723332027670 0.4234809374591980 0.4930000000000010 1 0.5088462593027800 0.4218790703747220 0.1980000000000000 1 0.4394996083039550 0.4574445750097920 0.9930000000000010 1 0.5919608565086820 0.4925031596814200 0.1980000000000000 1 0.5563953518736120 0.5903589894242060 0.9930000000000010 1 0.5213367672019840 0.5049936675806240 0.1980000000000000 1 0.4234809374591980 0.5743403185794490 0.9930000000000010 1 0.4218790703747220 0.5088462593027800 0.6980000000000000 1 0.4574445750097910 0.4394996083039550 0.4930000000000010 1 0.4925031596814190 0.5919608565086820 0.6980000000000000 1 0.5903589894242060 0.5563953518736120 0.4930000000000010 1 0.5049936675806230 0.5213367672019840 0.6980000000000000 1 0.5743403185794480 0.4234809374591980 0.4930000000000010 1 %endblock AtomicCoordinatesAndAtomicSpecies xc.functional LDA xc.authors CA MeshCutoff 100 Ry MD.MaxForceTol 0.04 eV/Ang PAO.BasisSize DZP DM.MixingWeight 0.01 DM.NumberPulay 10 MaxSCFIterations 200 SolutionMethod diagon MD.TypeOfRun CG MD.NumCGsteps 500 |
siesta問題 |
木蟲 (著名寫手)

新蟲 (小有名氣)
木蟲 (小有名氣)

新蟲 (小有名氣)
金蟲 (著名寫手)
新蟲 (小有名氣)
新蟲 (小有名氣)
|
您好,上面這個(gè)計(jì)算今天計(jì)算結(jié)束了,成功收斂了,用了307步,一共六天,我是覺得是不是參數(shù)不合理導(dǎo)致收斂速度太慢了?如果將MeshCutoff調(diào)大,PAO調(diào)小,計(jì)算量會(huì)更大,計(jì)算不是更慢了嗎? 另外,我之所以MeshCutoff設(shè)置100,PAO設(shè)置默認(rèn)值,是因?yàn)槲以跍y(cè)試k點(diǎn),等測(cè)試好了以后,參數(shù)的精度再提高進(jìn)行結(jié)構(gòu)優(yōu)化。也就是說,我現(xiàn)在是設(shè)置一系列不同的k點(diǎn),計(jì)算其總能量,得到最低能量對(duì)應(yīng)的k點(diǎn),不知道我這樣做是否可行?其他參數(shù)精度不夠?qū)Y(jié)果是否會(huì)有影響? 我現(xiàn)在又將電子溫度設(shè)置成3000K,以及將DM.MixingWeight增大為0.1,正在計(jì)算中,發(fā)現(xiàn)收斂速度明顯加快。謝謝您了 |
新蟲 (小有名氣)
新蟲 (小有名氣)
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[論文投稿] 有沒有大佬發(fā)小論文能帶我個(gè)二作 +3 | 增銳漏人 2026-03-17 | 4/200 |
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[考研] 考研調(diào)劑 +3 | 淇ya_~ 2026-03-17 | 5/250 |
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[考研] 一志愿,福州大學(xué)材料專碩339分求調(diào)劑 +3 | 木子momo青爭(zhēng) 2026-03-15 | 3/150 |
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[考研] 283求調(diào)劑 +3 | 聽風(fēng)就是雨; 2026-03-16 | 3/150 |
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[基金申請(qǐng)]
今年的國基金是打分制嗎?
50+3
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zhanghaozhu 2026-03-14 | 3/150 |
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[考研] 一志愿華中師范071000,325求調(diào)劑 +6 | RuitingC 2026-03-12 | 6/300 |
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[考研] 070303 總分349求調(diào)劑 +3 | LJY9966 2026-03-15 | 5/250 |
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[考研] 材料工程327求調(diào)劑 +3 | xiaohe12w 2026-03-11 | 3/150 |
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[考研] 中科大材料與化工319求調(diào)劑 +3 | 孟鑫材料 2026-03-14 | 3/150 |
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[考研] 281求調(diào)劑 +9 | Koxui 2026-03-12 | 11/550 |
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[考研] 求調(diào)劑 +5 | 一定有學(xué)上- 2026-03-12 | 5/250 |
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