abinit/tests/v6/Input/t66.abi

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nsym 1
ixc 0
nsppol 1
ndtset 15 udtset 3 5
#Definition of lattice parameters
#********************************
acell 8 5 5
xcart1? -1 0 0 1 0 0
xcart2? -0.99 0 0 1 0 0
xcart3? -1.01 0 0 1 0 0
ntime 100
nshiftk 1
shiftk 0.5 0.5 0.5
ngkpt 10 1 1
kptopt 2
#Definition of atomic positions and types
#*************************************
natom 2
ntypat 1
typat 2*1
znucl 2.0
occopt 1
# occ 32*1 #not needed when occopt 1
nband 2 #in case occopt 1 nband is simple scalar; if I put nband 8 the DS5 crashes
#Parameters of the SCF cycles
#****************************
nstep 100
#Plane wave basis
#*********************************
ecut 17.0
diemac 1.0d0
diemix 1/3
ecutsm 0.5
dilatmx 1.05
#DATASET1 : scf calculation: GS WF in the BZ
#********************************************
prtden?1 1
kptopt?1 1
tolwfr?1 1.0d-20
#DATASET2 : non scf calculation: GS WF in the whole BZ
#*****************************************************
getden?2 -1
kptopt?2 2
iscf?2 -2
getwfk?2 -1
tolwfr?2 1.0d-20
#DATASET3 : ddk on the MP grid of k-points
#*****************************************
getwfk?3 -1
rfelfd?3 2
tolwfr?3 1.0d-20
kptopt?3 2
#DATASET4 : ddE on the MP grid of k-points
#*****************************************
prtden?4 1
getwfk?4 -2
getddk?4 -1
rfphon?4 1
tolvrs?4 1.0d-14
rfelfd?4 3
kptopt?4 2
prepanl?4 1
#DATASET5 : 3DTE calculation
#***************************
getden?5 -4
get1den?5 -1
getwfk?5 -3
get1wf?5 -1
kptopt?5 2
optdriver?5 5
d3e_pert1_elfd?5 1
d3e_pert1_phon?5 1
d3e_pert1_atpol?5 1 1
d3e_pert1_dir?5 1 0 0
d3e_pert2_elfd?5 1
d3e_pert2_dir?5 1 0 0
d3e_pert3_elfd?5 1
d3e_pert3_dir?5 1 0 0
nbdbuf 0
d3e_pert1_dir 0 0 0 # For backward compatibility of tests only. Instead one should leave the default.
d3e_pert2_dir 0 0 0 # For backward compatibility of tests only. Instead one should leave the default.
d3e_pert3_dir 0 0 0 # For backward compatibility of tests only. Instead one should leave the default.
pp_dirpath "$ABI_PSPDIR"
pseudos "02he.bare"
#%%<BEGIN TEST_INFO>
#%% [setup]
#%% executable = abinit
#%% need_cpp_vars = !HAVE_MPI_IO_DEFAULT
#%% [files]
#%% files_to_test =
#%% t66.abo, tolnlines = 0, tolabs = 0.0, tolrel = 0.0
#%% [paral_info]
#%% max_nprocs = 5
#%% [extra_info]
#%% authors = Unknown
#%% keywords = NC, DFPT
#%% description =
#%% He dimer, with bare pseudopotential ixc=0
#%% Compute Raman intensity, showing essentially perfect agreement
#%% between DFPT and finite-differences, when the number of k points
#%% is extended to infinity.
#%% The present test use ngkpt 10 1 1, giving DFPT: 0.039868
#%% Finite-differences: 1.6318415296 - 1.6216781815 = 0.0101633077
#%% to be divided by 0.02 (the difference in xcart) and 4pi => 0.040439
#%% Going to ngkpt 80 1 1, gives:
#%% DFPT: 0.040052
#%% Finite-differences: 0.040054
#%% The DFPT with ngkpt 320 1 1 gives 0.040055.
#%% topics = nonlinear
#%%<END TEST_INFO>