this is required by the routine phfacs .
now the code should not complain when this values
are not specified in the input.
A way to warn users to use sensible values for US pseudo
is still missing.
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@2429 c92efa57-630b-4861-b058-cf58834340f0
The idea is that module funct contains data defining the DFT functional in use
and a number of functions and subroutines to manage them.
Data are PRIVATE and are (shuold be) accessed and set only by function calls.
Basic drivers to compute XC quantities are also included.
It should be the main place where definitions for and calculation of xc
functionals are centralized.
In CPV printout [A.U.] replaced by [HARTREE A.U.] in many places.
stefano
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@2411 c92efa57-630b-4861-b058-cf58834340f0
NEB: removed unused variables; removed allocatable input arrays from input_parameters (to be
consistent with the rest of the input stuff) and replaced by static arrays.
XML: unit 99 used to read/write wfc's replaced by a call to iotk_free_unit.
constraints: the static array "fion" is passed as an array-section to constraint subroutines.
metadyn: fe_step must be defined as an array of "time-steps" (one for each deg-of-freedom).
C.S.
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@2322 c92efa57-630b-4861-b058-cf58834340f0
If absent, it defaults to 'outdir'
Whatever files opened in openfil.f90 will be opened in 'nodedir' (wfc, igk, ...)
Everything else is unaffected
The idea is to make it easier to store large *.wfc files on nodes while keeping
the other files in a central location
The patch is minimally intrusive and only replaces temporarily a variable
in openfil.f90 ( this is an ugly but "clean" hack for now )
Please test if it does what is claimed
Kostya
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@2305 c92efa57-630b-4861-b058-cf58834340f0
vofrho overwrites rhor, what was written in the restart was the
potential and not the charge density.
- clean-up in input_parameters and INPUT_CP doc
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@2248 c92efa57-630b-4861-b058-cf58834340f0
accurancy of the pseudopotential table for CP/FPMD (default values = 0.05Ryd)
mmx now is calculated depending on refg and ecutrho
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@2155 c92efa57-630b-4861-b058-cf58834340f0
dion, beta, bec everyware.
- subroutines formfn, compute_beta, nlsm1, nlsm2, ecc ... now are common
between FPMD and CPV, a lot of clean ups!
- Changes in stdout: relevant physical quantities ( positions velocities an cell )
are now printed with the seme format of the corresponding input card,
like in PW, as was suggested by SdG.
- exemple23 updated to reflect the new input namelist "wannier"
- Subroutine init_run now is used in FPMD too.
- WARNING in the stress computed with CP, for a pseudo with core-corrections,
a contribution is missing! Not yet fixed, I need to talk with PG for the
box staff.
- WARNING the examples reference are not updated, I'm on the IBM sp, and
I prefer to update them from a linux machine.
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@2110 c92efa57-630b-4861-b058-cf58834340f0
not specified in the input, like in PW
- FPMD/CP directory for restart file now could be specified with
the input parameter "scradir" in the control namelist
- FPMD: NEB is working again!
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@2051 c92efa57-630b-4861-b058-cf58834340f0
This patch adds "massive" Nose-Hoover chains for ions (i.e. each ion
can have a separate NH chain attached to it)
Some fixes are still needed in different places:
-the information on the number of NH chains [nhpdim] needs to be
saved and read from the restart file (not done now)
-the NH velocities also need to be all saved [nhpdim*nhpcl]
-an input option needs to be added to zero out the NH velocities during
a restart in order to permit "on the fly" thermostat changes
-deallocation of the module variables gives glibc error with IFC 8.0 & 8.1 in
cpr.f90
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@1998 c92efa57-630b-4861-b058-cf58834340f0
The linear scaling algorithm has been removed (never used and bad performance) allowing for
a considerable clean up of the module.
A new Pulay mixing has been added on top of the BFGS scheme which improves (sometimes considerably)
the performace of the relaxation (similar to the GDIIS). It is activated by setting bfgs_ndim (default is 1
which corresponds to no Pulay mixing). The algorithm has to be tested against difficoult problems.
C.S.
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@1823 c92efa57-630b-4861-b058-cf58834340f0
Added the possibility of doing the string dynamics in real space (the original recipe).
The Fourier representation of the path is switched on by setting the logical input variable "use_fourier".
C.S.
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@1810 c92efa57-630b-4861-b058-cf58834340f0
moments have been changes
i_cons, mcons have been removed from input (still there in the code)
added variables:
constrained_magnetization='none','atomic','atomic direction','total'
fixed_magnetization(3) (value of the total magnetization to be fixed)
B_field are introduced (if non zero is the value of the added magnetic field)
for 'atomic' or 'atomic direction' constraint the input magnetization
as defined by starting_magnetization, angle1, angle2 or the cosine of angle1
is used to define the constraint.
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@1747 c92efa57-630b-4861-b058-cf58834340f0
With i_cons = 3; A penalty functional is added to the
total energy to constrain each component of the
total magnetization.
(Only in noncolinear version)
With i_cons = 4; a fixed magnetic field is added to the
exchange and correlation magnetic field.
(Only in noncolinear version)
With i_cons = 5; Uses the two Fermi energies feature to fix the
magnetization as in the constrained-moment approach.
mcons(3,1) fix the value of the total magnetization.
(Only with nspin=2)
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@1720 c92efa57-630b-4861-b058-cf58834340f0
TO BE CHECKED!!
- iotk_multitype_integer splitted into two files to
workaround compiler problem (IBM xlf) with small simbol stack
- new module with SIC variables
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@1712 c92efa57-630b-4861-b058-cf58834340f0
been fully implemented: it is ~2 times faster than the quick-min optimisation scheme.
It does not make use of the input step ds (the step is automatically upgraded as in the
BFGS method). Still to be tested on difficoult cases (I ask some help from those
who have encountered convergence problems with the previous versions of NEB). C.S.
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@1668 c92efa57-630b-4861-b058-cf58834340f0
The input keyword "potential_extrapolation" has been substituted by two separate keywords "pot_extrapolation" and "wfc_extrapolation".
Default values are still 'atomic' for the former and 'none' for the latter. Documentation updated.
C.S.
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@1551 c92efa57-630b-4861-b058-cf58834340f0
1) cleanup of the output format (more informative)
2) some cleanup of internal routines
3) added a couple of input variables and changed the default value
of ds from 1.5 to 1.0.
BFGS optimization:
1) implemented a mixed BFGS + Murtag-Sargent update of the inverse
hessian which is generally faster than the pure BFGS
2) trust_radius_max increased to 0.8 bohr
3) some cleanup of internal routines
(C.S.)
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@1414 c92efa57-630b-4861-b058-cf58834340f0
Added a use_multistep input variable that allows fourier modes to be gradually included.
Added a langevin opt_scheme in which the string performs a langevin dynamics in the path space.
In the langevin scheme a canonical sampling of the initial and final configurations can also be done "on the fly" setting first_last_opt=.TRUE..
C.S.
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@1373 c92efa57-630b-4861-b058-cf58834340f0
- input pressure in GPa ( both code )
- Output stress in GPa ( both code )
- Output layout made more similar:
energies, positions, forces, cell
displayed in the same way
- Zero velocities after a restart implemented in CP
- Nose and damped dynamics for cell implemented
in FPMD like in CP
carlo
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@1260 c92efa57-630b-4861-b058-cf58834340f0
- initialization (both code uses the same ggen)
- now FPMD initializes the small-boxes too (required for untrasoft pseudo)
- print out
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@1186 c92efa57-630b-4861-b058-cf58834340f0
are grouped into modules starting with "path_". The output has been slightly
restyled. In the pwscf code (only) has been implemented a version of the string
method (calculation='smd') in which the path is represented in Fourier components
and the optimization procedure is done on these components (still to be
optimized, but working).
C.S.
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@1119 c92efa57-630b-4861-b058-cf58834340f0
cavazzon