I have been trying to find the appropriate k-point grid via convergence in quantum ESPRESSO (QE). The following is my input file.
&CONTROL
calculation = 'scf'
outdir = './outdir'
verbosity = 'high'
tprnfor = .true.
tstress = .true.
pseudo_dir = '.'
/
&SYSTEM
ibrav = 0
A = 3.35381
nat = 3
ntyp = 2
ecutwfc = 55
ecutrho = 650
starting_magnetization(1) = 1
starting_magnetization(2) = 0
lspinorb = .true.
noncolin = .true.
occupations = 'smearing'
smearing = 'mv'
degauss = 0.005d0
/
&ELECTRONS
conv_thr = 1e-8
mixing_beta = 0.7d0
/
CELL_PARAMETERS {alat}
1.000000000000000 0.000000000000000 0.000000000000000
-0.500000000000000 0.866025403784439 0.000000000000000
0.000000000000000 0.000000000000000 2.087308375869810
ATOMIC_SPECIES
V 50.94150 V.rel-pbe-spnl-kjpaw_psl.1.0.0.UPF
Se 78.96000 Se.rel-pbe-dn-kjpaw_psl.1.0.0.UPF
ATOMIC_POSITIONS {crystal}
Se 0.666666666666667 0.333333333333333 0.774935000000000
Se 0.333333333333333 0.666666666666667 0.225065000000000
V 0.000000000000000 0.000000000000000 0.000000000000000
K_POINTS {automatic}
6 6 6 0 0 0
Here when the Spin Orbit Coupling (SOC) of the material is included as given in the input file. QE is not able to calculate the stress and pressure. And indicates the following message:
Computing stress (Cartesian axis) and pressure
Message from routine stres:
noncollinear stress + GGA not implemented
Is there a way I could calculate the pressure and use SOC at the same time?