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souledge

专家顾问 (著名写手)

[交流] 【分享】PWscf 4.3正式版发布 已有8人参与

在一周以前发布了4.3b后,昨天就发布了4.3正式版了。没想到4.3版居然挑在昨天(4.1)发布……
先上图,偶居然抢了个全球前十名的下载……

查看了一下源码包内容,跟4.3a和4.3b相比,QHA还是最终又加在里面了,一直都怕QHA会消失~因为自己不会写Fortran来实现QHA的功能……不过,QHA包并没有任何的升级,还是只能算少有的几个布喇菲格子:
引用回帖:
case $ibrav  in

0)   echo "You should know about the symmetry of a system you study"
     exit ;;
1)   cp $QHA_DIR/tetrahedra/ttrinp_sc ./ttrinp  ;;
2)   cp $QHA_DIR/tetrahedra/ttrinp_fcc ./ttrinp ;;
3)   cp $QHA_DIR/tetrahedra/ttrinp_bcc ./ttrinp ;;
4)   c2a1=`head -1 $FC_file | cut -c 36-44`
     c2a=`echo "scale=8;$c2a1/2" | bc -l`
     sed 's/X/'$c2a'/g' $QHA_DIR/tetrahedra/ttrinp_hcp > ./ttrinp ;;
5)   echo "Trigonal R: not implemented yet"
     exit ;;
6)   c2a1=`head -1 $FC_file | cut -c 36-44`
     c2a=`echo "scale=8;$c2a1/2" | bc -l`
     echo $c2a
     sed 's/X/'$c2a'/g' $QHA_DIR/tetrahedra/ttrinp_stetra > ./ttrinp ;;
7)   echo "Running script instruction:"
     echo "See instructions in $QHA_DIR/tetrahedra/ttrinp_bct file to setup tetrahedra vertecies for c/a<1"
     echo "Then comment exit line by #"
     echo "And uncomment the next line"
     exit;;
#    cp $QHA_DIR/tetrahedra/ttrinp_bct ./ttrinp ;;
8)   b2a1=`head -1 $FC_file | cut -c 25-33`
     c2a1=`head -1 $FC_file | cut -c 36-44`
     b2a=`echo "scale=8;$b2a1/2" |bc -l`
     c2a=`echo "scale=8;$c2a1/2" |bc -l`
     sed 's/YY/'$b2a'/g' $QHA_DIR/tetrahedra/ttrinp_ortho_simple > ttrinp1
     sed 's/ZZ/'$c2a'/g' ttrinp1 > ./ttrinp
     rm -f ttrinp1;;
9)   echo "Orthorhombic base centered: not implemented yet"
     exit ;;
10)  echo "Orthorhombic face centered: not implemented yet"
     exit ;;
11)  echo "Orthorhombic body centered: not implemented yet"
     exit ;;
12)  echo "Monoclinic P: not implemented yet"
     exit ;;
13)  echo "Monoclinic base centered: not implemented yet"
     exit ;;
14)  echo "Triclinic: not implemented yet"
     exit ;;
esac

而TD-DFPT最终如愿以偿的加入在了4.3正式版的软件包中,如4.3a和4.3b一样,还是Beta 1版,不支持多K点的计算(也就是只能选择K_POINTS {gamma}才可以计算激发态)。
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souledge

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引用回帖:
Originally posted by goldenfisher at 2011-04-02 21:09:21:
今天受到了Paolo在mailist里面的信,给大家看看,了解一下新功能。Paolo私下告诉我下一步Pwscf发展的重点就是分子动力学,到时候会把最近的分子动力学进展比如langevin molecular dynamics加进去。
Version 4.3  ...

哦?重点转到Ab-initio MD么?MD就是另一套理论体系了,好处是可以算更多的宏观量,缺点是看起来很玄乎的数据少了……哈哈~
看来QE有像MS、MedeA那样搞成综合软件的趋势比较重了~
思想重于技巧,内涵重于表象
6楼2011-04-02 22:39:20
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souledge

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顺便,有人用过PLUMED么?看了一下说明,是基于分子动力学的自由能计算插件,一般是依附于分子动力学模拟软件,比如LAMMPS的,但是同时PLUMED也支持从pw.x中进行从头算的分子动力学模拟求自由能。
如果是用分子动力学来求自由能,那理论上应该不像QHA那样有结构限制吧……
思想重于技巧,内涵重于表象
3楼2011-04-02 00:51:52
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goldenfisher

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小木虫(金币+0.5):给个红包,谢谢回帖交流
sunyang1988(金币+3): 感谢分享 2011-04-02 21:10:09
今天受到了Paolo在mailist里面的信,给大家看看,了解一下新功能。Paolo私下告诉我下一步Pwscf发展的重点就是分子动力学,到时候会把最近的分子动力学进展比如langevin molecular dynamics加进去。
Version 4.3 of the Quantum ESPRESSO distribution is available for
download from the website http:​//www.quantum​-espresso.org . This
release contains the following improvements over previous versions:

* vdW-DF - Dispersion interactions (van der Waals) with nonlocal
functional
  in PWscf (Brian Kolb, Timo Thonhauser, Riccardo Sabatini, SdG)
* New package TDDFPT for calculations of spectra using Time-Dependent
  Density-Functional Perturbation Theory (SB, Ralph Gebauer, Baris
Malcioglu,
  Dario Rocca, Brent Walker)
* Additions to projwfc: k-resolved DOS, LDOS integrated in selected
  real-space regions
* Constant-volume variable-cell optimization
* Non-colinear and spin-orbit PAW
* CP only, experimental: ​parallelizati​on over Kohn-Sham states
* CP only, experimental: penalty functional technique in DFT+U
calculations

Note the following major change:

* code pw.x no longer performs NEB ​calculations.​ NEB is now computed
  by a separate code, NEB/neb.x . NEB-specific variables are no longer
  read by pw.x; they are read by neb.x after all pw.x variables
* NEB for cp.x no longer available

For other minor improvements, changes, bug fixes, see file
Doc/release-notes

Everybody who is using the Quantum-ESPRESSO distribution is encouraged
to upgrade and to report problems to the mailing list.

The Quantum ESPRESSO group
4楼2011-04-02 21:09:21
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goldenfisher

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小木虫(金币+0.5):给个红包,谢谢回帖交流
zzy870720z(金币+1): 谢谢指教 2011-04-02 23:42:32
引用回帖:
Originally posted by souledge at 2011-04-02 00:51:52:
顺便,有人用过PLUMED么?看了一下说明,是基于分子动力学的自由能计算插件,一般是依附于分子动力学模拟软件,比如LAMMPS的,但是同时PLUMED也支持从pw.x中进行从头算的分子动力学模拟求自由能。
如果是用分子动 ...

PLUMED主要还是做metadynamics的,这是一种从自由能角度出发找最优结构的方法,还是不错。
5楼2011-04-02 21:23:05
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