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[求助]
很奇怪的問題,vasp計(jì)算ENCUT設(shè)大就不讓計(jì)算,高手幫忙!
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第一次碰到這么奇怪的問題,在集群上算,ENCUT超過400,就提示錯(cuò)誤如下: Tue Jul 31 16:36:12 CST 2012 running on 8 nodes distr: one band on 1 nodes, 8 groups vasp.5.2.12 26May11 complex POSCAR found type information on POSCAR Fe F POSCAR found : 2 types and 24 ions LDA part: xc-table for Pade appr. of Perdew POSCAR, INCAR and KPOINTS ok, starting setup FFT: planning ...( 1 ) WAVECAR not read WARNING: random wavefunctions but no delay for mixing, default for NELMDL entering main loop N E dE d eps ncg rms rms(c) mpiexec: Warning: tasks 0-7 died with signal 11 (Segmentation fault). Tue Jul 31 16:36:22 CST 2012 下面是我INCAR設(shè)置文件: SYSTEM = bulk MoF3 # ISTART = 0 ! start from scratch (WAVECAR) # GGA = 91 VOSKOWN = 1 ! used when GGA = 91 # ICHARG = 1 ! rho read from CHGCAR. ENCUT =500 PREC = Accurate LREAL= Auto # NPAR = 1 # NBANDS = 10 # RWIGS = 2.20 ! unit in A # ISMEAR = -5 ! Tetrahedron method with Bloechel corrections. ISMEAR = 0 ! Tetrahedron method with Bloechel corrections. SIGMA = 0.2 ! in eV #MAG related values: ISPIN =2 MAGMOM = 2 -2 2 -2 2 -2 18*0 LORBIT = 11 #LDA+U LDAU =.TRUE. LDAUTYPE = 2 LDAUL = 2 -1 LDAUU = 9 0 LDAUJ = 1 0 LDAUPRINT = 2 #Ionic Relaxation ISIF = 3 ! Relax ions only, no change of cell shape and volume IBRION = 2 ! ionic relax: 0-MD; 1-quasi-New; 2-CG. # POTIM = 0.2 ! POTIM = 0.2 POTIM = 0.5 # IALGO = 38 ! algorithm NSW = 30 ! number of ionic step EDIFFG = -0.01 ! all forces are smaller than 0.005, eV/A unit? ENCUT改為300即讓算,但是結(jié)果誤差比較大。到底是什么原因 [ Last edited by aylixmut on 2012-8-10 at 07:53 ] |
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