[CPMD-list] help12
Pinilla Castellanos Carlos
carlospi at estudiantes.fisica.unal.edu.co
Tue Feb 25 15:36:26 CET 2003
hello all
I very novice in CPMD, trying calculate band structure of Si. the input
file for optimize density is:
CPMD
OPTIMIZE WAVEFUNCTION
CONVERGENCE
1.E-3 1.E-3
DIIS MIXING
10
STORE OFF WAVEFUNCTIONS
RHOOUT
ENERGYBANDS
&END
&SYSTEM
SYMMETRY
1
TESR
10
ANGSTROM
CELL
5.43 1.0 1.0 0.0 0.0 0.0
SPHERICAL CUTOFF
20.
KPOINTS MONKHORST-PACK
20 20 20
SCALE
&END
&ATOMS
*SI_SGS KLEINMAN-BYLANDER
LMAX=P
8
0.0 0.0 0.0
0.0 0.5 0.5
0.5 0.0 0.5
0.5 0.5 0.0
0.25 0.25 0.25
0.75 0.25 0.75
0.75 0.75 0.25
0.25 0.75 0.75
&END
and input file calculate the band structure is:
&CPMD
OPTIMIZE WAVEFUNCTION
RESTART DENSITY LATEST
CONVERGENCE
5.D-5 5.D-4
ENERGYBANDS
&END
&SYSTEM
SYMMETRY
1
SCALED
TESR
4 4 4
ANGSTROM
CELL
5.4300 1.0 1.0 0.0 0.0 0.0
SPHERICAL CUTOFF
13.
DENSITY CUTOFF ENERGY
2000
KPOINTS BANDS
51 0 0 0 0.138 0.138 0 de Gamma a K
0 0 0 0 0 0 0
&END
&ATOMS
*SI_SGS KLEYNMAN-BYLANDER
LMAX=P
8
0.0 0.0 0.0
0.0 0.5 0.5
0.5 0.5 0.0
0.5 0.0 0.5
0.25 0.25 0.25
0.75 0.25 0.75
0.75 0.75 0.25
0.25 0.75 0.75
&END
i have the following problems:
1. if KPOINTS MNKHORST PACK is very great to 32 32 32 the message error in
memory is:
[PEAK NUMBER 88] PEAK MEMORY 230758164 = 1846.1 MBytes
> ================================================================
>
>
> PROGRAM STOPS IN SUBROUTINE MEMORY| ALLOCATION FAILED (GDE)
i have 2GB ram memory in intel xeon processor and ifc compiler. How can I
solve this problem?
2. what is the message:
ODIIS| Insufficient progress for K = 44; reset!
i triyng the above imput file.
3. in the ENERGYBANDS file is writing:
0.468750000000000 0.468750000000000 0.468750000000000
0.001953125$ 1 0.000000000000000 2.000000000000000
2 0.000000000000000 2.000000000000000
3 0.000000000000000 2.000000000000000
4 0.000000000000000 2.000000000000000
5 0.000000000000000 2.000000000000000
6 0.000000000000000 2.000000000000000
7 0.000000000000000 2.000000000000000
8 0.000000000000000 2.000000000000000
9 0.000000000000000 2.000000000000000
10 0.000000000000000 2.000000000000000
11 0.000000000000000 2.000000000000000
12 0.000000000000000 2.000000000000000
13 0.000000000000000 2.000000000000000
14 0.000000000000000 2.000000000000000
15 0.000000000000000 2.000000000000000
16 0.000000000000000 2.000000000000000
how i solve this problem? is error in the imput file?
excuse me, the i-mail is very great and thanks for your help
Carlos
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