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yi315730581

木虫 (正式写手)

[求助] vasp计算体弹性模量出问题

将文件写好之后,开始运行,summary直接宣示所设置的体积
-235
-237
-239
-241
-243
-245
-247
-249
-251
后面的数据不出来就直接计算完成。
summary的完整数据应该是
-246 3 F= -.24039430E+03 E0= -.24039430E+03 d E =-.299303E-03
-248 3 F= -.24050611E+03 E0= -.24050611E+03 d E =-.151022E-03
-250 1 F= -.24058649E+03 E0= -.24058649E+03 d E =-.240586E+03
-252 1 F= -.24063860E+03 E0= -.24063860E+03 d E =-.240639E+03
-254 1 F= -.24066267E+03 E0= -.24066267E+03 d E =-.240663E+03
-256 1 F= -.24065903E+03 E0= -.24065903E+03 d E =-.240659E+03
-258 1 F= -.24063015E+03 E0= -.24063015E+03 d E =-.240630E+03
-260 3 F= -.24057665E+03 E0= -.24057665E+03 d E =-.211674E-03
-262 3 F= -.24049992E+03 E0= -.24049992E+03 d E =-.307053E-03
问题到底出在哪里,哪位高人帮忙解释下,感激不尽
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hookah

木虫 (正式写手)

★ ★
franch: 金币+2, 谢谢回帖交流。。。。 2012-03-26 17:11:43
给出你的INCAR,KPOINTS,\和你summary的那个脚本!
2楼2012-03-26 15:58:22
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yi315730581

木虫 (正式写手)

引用回帖:
2楼: Originally posted by hookah at 2012-03-26 15:58:22:
给出你的INCAR,KPOINTS,\和你summary的那个脚本!

您好:
INCAR

system=TiO2-Anatase-gga

ISIF=4
NSW=15
ISTART=0
IBRION=2
ISMEAR=-5 !0 ! for less K-point, set 0. try -5 (tetrahedron method valid for NKPT>=4) with multi-KPOINTS

NFREE =15
NELM   =120
NELMIN=  4
NELMDL = -12

ENCUT=520
NBANDS=160

Prec=Normal
ROPT=-5E-4 -5E-4 -5E-4
! * Making the calculations faster
IALGO = 48    ! RMM-DIIS algorithm for electrons
LREAL =Auto   ! evaluate projection operators in real space
NSIM = 4      ! blocked algorithm update, four bands at a time

LELF=TURE
ICHARG=1

K-Points
0
Monkhorst-Pack
4 4 4
0 0 0

那个summary的脚本是指run文件么
for a in -235 -237 -239 -241 -243 -245 -247 -249 -251
do
echo "a= $a"

cat >POSCAR <   system=Sm2O3-mc
$a ! opt v=243.40
   0.0000000000000000    4.9314122559415781    4.9314122559415781
     4.9314122559415781    0.0000000000000000    4.9314122559415781
     4.9800985103559263    4.9800985103559263   -0.0486862544143462
   3   5  16
Direct
  0.0000000000000000  0.0000000000000000  0.0000000000000000
  0.5000000000000000  0.0000000000000000  0.0000000000000000
  0.0000000000000000  0.5000000000000000  0.0000000000000000
  0.0000000000000000  0.0000000000000000  0.5000000000000000
  0.5000000000000000  0.5000000000000000  0.0000000000000000
  0.0000000000000000  0.5000000000000000  0.5000000000000000
  0.5000000000000000  0.0000000000000000  0.5000000000000000
  0.5000000000000000  0.5000000000000000  0.5000000000000000
  0.1289041758412512  0.1289041758412512  0.1132874724762462
  0.6330511441617183  0.1177105896269768  0.1161871220495867
  0.1177105896269768  0.6330511441617183  0.1161871220495867
  0.1189283512638254  0.1189283512638254  0.6392864472229567
  0.6330511441617183  0.6330511441617183  0.1161871220495867
  0.1189283512638254  0.6228568502493927  0.6392864472229567
  0.6228568502493927  0.1189283512638254  0.6392864472229567
  0.6235366114367832  0.6235366114367832  0.6293901656896503
  0.3764633885632168  0.3764633885632168  0.3706098343103497
  0.8810716487361746  0.3771431497506073  0.3607135527770435
  0.3771431497506073  0.8810716487361746  0.3607135527770435
  0.3669488558382817  0.3669488558382817  0.8838128779504132
  0.8810716487361746  0.8810716487361746  0.3607135527770435
  0.3669488558382817  0.8822894103730230  0.8838128779504132
  0.8822894103730230  0.3669488558382817  0.8838128779504132
  0.8710958241587488  0.8710958241587488  0.8867125275237537
!

vasp


E=`tail -1 OSZICAR`
echo $a $E >>SUMMARY

done
我这个是一个超胞体系,而且在晶胞优化当中也会出现问题,r31能计算,但是r32不能进行下去。本人也是初步接触计算这些东西,望您不吝赐教,谢谢
真正的人生属于力争上游的人
3楼2012-03-26 20:30:18
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