24小时热门版块排行榜    

查看: 2189  |  回复: 18
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

锐利的碎片

木虫 (正式写手)

star watcher

[交流] 【分享】elk-1.3.2 已有9人参与

主要:
实验性功能:tddft-lrc
芯态BSE
Broyden混合
hf,oep计算速度有一定提高
引用回帖:
详细更新在7楼
elk-1.3.2
-linear response time-dependent density functional theory (TDDFT) now available for calculating the q->0 dielectric response; see the example 'LiF-TDDFT' (experimental)
-fixed a problem with the BSE calculation which made the response function too large
-added the possibility of using arbitrary states in the BSE kernel thanks to discussions with Markus Meinert; this enables the calulation of core state BSE spectra; see the example 'CaO-BSE-core' (experimental)
-MM also added an x-ray magnetic circular dichroism (XMCD) example: 'Fe-XMCD'
-BSE calculations are now faster, thanks to discussions with MM
-Alexey Baranov made several changes to the structure factor code, including adding an energy window, 'wsfac', for the calculations; see the example 'MnO-str-factors'
-Tyrel McQueen suggested a way to speed up the Hartree-Fock calculation; this has been implemented and also considerably speeds up OEP and RDMFT
-TMcQ also made some ongoing changes to the hybrid functional code
-made the radial Dirac and Schrodinger integrators yet more stable; thanks to AB and Frank Wagner for discussions
-fixed a problem with the ordinary RPA dielectric function; only affects calculations which have a scissor shift which made epsilon slightly too small
-real symmetric diagonalisation now used for the first-variational eigenvalue problem for crystals with inversion symmetry; this can speed up the calculation by a factor of three; this is thanks to discussions with Lars Nordstrom; Important: the atomic basis may be shifted to a different position and old output files may need to be reconverged
-fixed a stability problem which occurs when using GGA functionals by removing G-vector truncation of the effective potential introduced in version 1.0.16; thanks to Greg Walker for discovering this
-LDA+U calculations are now faster thanks to fast evaluation of the atomic density matrix
-Broyden mixing scheme now available: this seems to be both fast and stable (use 'mixtype=3')
-removed Anderson mixing
-improved starting guess for the density in ground-state calculations
-upgraded to LAPACK 3.3.1
-various optimisations and simplifications
Notes for developers
-the arrays haa, halo, hlolo, oalo, ololo are now smaller and the indexing has been rearranged

感谢9楼youzhizhe补充链接
引用回帖:

[ Last edited by youzhizhe on 2011-5-31 at 17:08 ]
回复此楼
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

totem

金虫 (正式写手)


小木虫(金币+0.5):给个红包,谢谢回帖交流
引用回帖:
Originally posted by 锐利的碎片 at 2011-01-16 13:33:57:
elk-1.2.15
-SS and JKD added the Bethe-Salpeter equation (BSE) for linear optics calculations. This feature works with LDA+U, magnetism and spin-orbit coupling. It is also parallelised with MPI an ...

谢谢,1.2.20出来了,更新很快。
4楼2011-03-31 01:44:16
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 19 个回答

锐利的碎片

木虫 (正式写手)

star watcher

试了一下,主要加了几个新功能:
1 BSE方程,可以计算激子效应。
2 计算结构因子
3 非闭包情形下对角化本征矩阵,可以提高计算速度,试了下小体系,效果不是很明显。
可能大体系要快一些。
再就是现在mpi可以运行大部分的任务,以前只能算scf和结构优化。
3楼2011-01-16 17:00:52
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

zzy870720z

荣誉版主 (文坛精英)

优秀版主优秀版主优秀版主优秀版主

引用回帖:
Originally posted by mengfc at 2011-04-02 23:52:04:
这是免费的吗?

是的,免费软件
博学、审问、慎思、明辨、笃学
6楼2011-04-03 10:33:16
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

锐利的碎片

木虫 (正式写手)

star watcher


uuv2010(金币+1): 多谢提供资源 2011-07-15 23:12:17
elk-1.3.2
-linear response time-dependent density functional theory (TDDFT) now available for calculating the q->0 dielectric response; see the example 'LiF-TDDFT' (experimental)
-fixed a problem with the BSE calculation which made the response function too large
-added the possibility of using arbitrary states in the BSE kernel thanks to discussions with Markus Meinert; this enables the calulation of core state BSE spectra; see the example 'CaO-BSE-core' (experimental)
-MM also added an x-ray magnetic circular dichroism (XMCD) example: 'Fe-XMCD'
-BSE calculations are now faster, thanks to discussions with MM
-Alexey Baranov made several changes to the structure factor code, including adding an energy window, 'wsfac', for the calculations; see the example 'MnO-str-factors'
-Tyrel McQueen suggested a way to speed up the Hartree-Fock calculation; this has been implemented and also considerably speeds up OEP and RDMFT
-TMcQ also made some ongoing changes to the hybrid functional code
-made the radial Dirac and Schrodinger integrators yet more stable; thanks to AB and Frank Wagner for discussions
-fixed a problem with the ordinary RPA dielectric function; only affects calculations which have a scissor shift which made epsilon slightly too small
-real symmetric diagonalisation now used for the first-variational eigenvalue problem for crystals with inversion symmetry; this can speed up the calculation by a factor of three; this is thanks to discussions with Lars Nordstrom; Important: the atomic basis may be shifted to a different position and old output files may need to be reconverged
-fixed a stability problem which occurs when using GGA functionals by removing G-vector truncation of the effective potential introduced in version 1.0.16; thanks to Greg Walker for discovering this
-LDA+U calculations are now faster thanks to fast evaluation of the atomic density matrix
-Broyden mixing scheme now available: this seems to be both fast and stable (use 'mixtype=3')
-removed Anderson mixing
-improved starting guess for the density in ground-state calculations
-upgraded to LAPACK 3.3.1
-various optimisations and simplifications
Notes for developers
-the arrays haa, halo, hlolo, oalo, ololo are now smaller and the indexing has been rearranged
7楼2011-05-31 10:01:30
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
普通表情 高级回复 (可上传附件)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 一志愿 西北大学 ,070300化学学硕,总分287,双非一本,求调剂。 +3 晨昏线与星海 2026-03-19 3/150 2026-03-19 13:36 by houyaoxu
[考研] 一志愿武汉理工材料工程专硕调剂 +3 Doleres 2026-03-19 3/150 2026-03-19 12:29 by peike
[考研] 材料专硕英一数二306 +5 z1z2z3879 2026-03-18 5/250 2026-03-19 07:43 by BruceLiu320
[考研] 304求调剂 +6 司空. 2026-03-18 6/300 2026-03-18 23:03 by 星空星月
[考研] 【同济软件】软件(085405)考研求调剂 +3 2026eternal 2026-03-18 3/150 2026-03-18 19:09 by 搏击518
[考研] 085600材料与化工 +5 安全上岸! 2026-03-16 5/250 2026-03-18 15:33 by cmz0325
[考研] 环境工程调剂 +8 大可digkids 2026-03-16 8/400 2026-03-18 09:36 by zhukairuo
[考研] 材料与化工求调剂 +6 为学666 2026-03-16 6/300 2026-03-17 20:15 by peike
[考研] 301求调剂 +4 A_JiXing 2026-03-16 4/200 2026-03-17 17:32 by ruiyingmiao
[考研] 326求调剂 +5 上岸的小葡 2026-03-15 6/300 2026-03-17 17:26 by ruiyingmiao
[硕博家园] 湖北工业大学 生命科学与健康学院-课题组招收2026级食品/生物方向硕士 +3 1喜春8 2026-03-17 5/250 2026-03-17 17:18 by ber川cool子
[考研] 梁成伟老师课题组欢迎你的加入 +8 一鸭鸭哟 2026-03-14 10/500 2026-03-17 15:07 by 一鸭鸭哟
[考研] 278求调剂 +3 Yy7400 2026-03-13 3/150 2026-03-17 08:24 by laoshidan
[考研] 333求调剂 +3 文思客 2026-03-16 7/350 2026-03-16 18:21 by 文思客
[考研] 304求调剂 +4 ahbd 2026-03-14 4/200 2026-03-16 16:48 by 我的船我的海
[考研] 一志愿211 0703方向310分求调剂 +3 努力奋斗112 2026-03-15 3/150 2026-03-16 16:44 by houyaoxu
[考研] 294求调剂 +3 Zys010410@ 2026-03-13 4/200 2026-03-15 10:59 by zhq0425
[考研] 材料与化工 323 英一+数二+物化,一志愿:哈工大 本人本科双一流 +4 自由的_飞翔 2026-03-13 5/250 2026-03-14 19:39 by hmn_wj
[基金申请] 现在如何回避去年的某一个专家,不知道名字 +3 zk200107 2026-03-12 6/300 2026-03-14 17:13 by zk200107
[考博] 福州大学杨黄浩课题组招收2026年专业学位博士研究生,2026.03.20截止 +3 Xiangyu_ou 2026-03-12 3/150 2026-03-13 09:36 by duanwu655
信息提示
请填处理意见