(large system have seldom symmetries) and not a big effort either (but
the variable-cell case was really nasty, due to the loss of G-vector
ordering). Currently the new routines are hidden into module symme and
called by wrappers that make it simple to revert to the old algorithm.
It works for all examples in tests/ in both serial and parallel execution,
but needs real-life testing. In the noncolinear case the results seem to
be invariant with respect to usage of S or S^-1 to rotate the magnetization,
so more testing (or a more reliable theory) is needed.
For the time being, it works only for PW and (untested) PP. PHonon etc
still use the old-fashioned real-space symmetrization.
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@6261 c92efa57-630b-4861-b058-cf58834340f0
1) no more f_defs.h file to be included in fortran files
2) all CMPLX explicitly defined as CMPLX(...,KIND=dp)
3) blas/lapack names in lowercase (not all of them, actually)
4) documentation accordingly updated (plus unrelated changes to user_guide)
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@5805 c92efa57-630b-4861-b058-cf58834340f0
for a bug, before I realized that there were two copies of "gamma_only",
I wasted two more hours to iuse a single value of "gamma_only" (the one
oin control_flags).
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@4468 c92efa57-630b-4861-b058-cf58834340f0
- correct an unquoted string (iosys) in PW/input.f90:483
(this was the cause of tonight compilation failere)
- correct a few incorrect format strings
- make more use of the constants module and thus
provide more consistent units. NOTE, this has some
numerical changes in the outputs, as in some places
rather low precision and inconsistent numbers were
used for unit conversion.
- convert all(?) single precision constants to double
using the attached little perl program.
exceptions: efermi.f90 (as it is supposed to be rewritten
anyways), plotbands.f90 (it uses single precision everywhere,
which may result in saving a significant amount of memory,
so i converted the two double precision constants to single).
Unused routine 'set_fft_grid' removed
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@3602 c92efa57-630b-4861-b058-cf58834340f0
into a separate code (plan_avg.x). Output file should be the same.
Completely untested: it compiles, no warranty that it works!
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@2714 c92efa57-630b-4861-b058-cf58834340f0
conversion to real => DBLE
(including real part of a complex number)
conversion to complex => CMPLX
complex conjugate => CONJG
imaginary part => AIMAG
All functions are uppercase.
CMPLX is preprocessed by f_defs.h and performs an explicit cast:
#define CMPLX(a,b) cmplx(a,b,kind=DP)
This implies that 1) f_defs.h must be included whenever a CMPLX is present,
2) CMPLX should stay in a single line, 3) DP must be defined.
All occurrences of real, float, dreal, dfloat, dconjg, dimag, dcmplx
removed - please do not reintroduce any of them.
Tested only with ifc7 and g95 - beware unintended side effects
Maybe not the best solution (explicit casts everywhere would be better)
but it can be easily changed with a script if the need arises.
The following code might be used to test for possible trouble:
program test_intrinsic
implicit none
integer, parameter :: dp = selected_real_kind(14,200)
real (kind=dp) :: a = 0.123456789012345_dp
real (kind=dp) :: b = 0.987654321098765_dp
complex (kind=dp) :: c = ( 0.123456789012345_dp, 0.987654321098765_dp)
print *, ' A = ', a
print *, ' DBLE(A)= ', DBLE(a)
print *, ' C = ', c
print *, 'CONJG(C)= ', CONJG(c)
print *, 'DBLE(c),AIMAG(C) = ', DBLE(c), AIMAG(c)
print *, 'CMPLX(A,B,kind=dp)= ', CMPLX( a, b, kind=dp)
end program test_intrinsic
Note that CMPLX and REAL without a cast yield single precision numbers on
ifc7 and g95 !!!
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@2133 c92efa57-630b-4861-b058-cf58834340f0
1) f_defs.h for definitions to be included in FORTRAN files ONLY
2) c_defs.h for definitions to be included in C files ONLY
C.S.
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@1012 c92efa57-630b-4861-b058-cf58834340f0
- module filnam in pwcom moved to io_files module
- module units in pwcom moved to io_file
From now on, all file names and their unit and attributes (i.e. reclen)
should be defined in Modules/io_files.f90
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@382 c92efa57-630b-4861-b058-cf58834340f0
- ^M removed from pseudo files
- wavefunctions arrais moved to module
wavefunctions_module, common to all codes
this is required to reduce duplicated subroutine
- new lapack subroutine, called from PWCOND,
added to lib/lapack.f lib/lapack_ibm.f
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@381 c92efa57-630b-4861-b058-cf58834340f0
contributed by Adriano Mosca Conte,
added to the repository.
The non collinear code has required
a new module "wavefunctions" containing
"psic" and "evc", that no longer belong
to pwcom.
use: cvs update -d
there's a new example (example13), that is not
yet complete, I'm waiting for the appropriate
pseudopotential from Adriano
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@322 c92efa57-630b-4861-b058-cf58834340f0
symmetries are always applied in non-scf calculations
(with the exception of Berry-phase calculation):
use nosym=.true. to prevent generation of additional points
Example for STM added
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@274 c92efa57-630b-4861-b058-cf58834340f0
cegterg, regterg: use GEMM instead of GEMV, do not require
any longer evc, et to be dimensioned nbndx (et is now
dimensioned (nbnd,nkstot)) - misc. cleanup
Il calcolo di (H-eS)*psi ('update') nella diagonalizzazione iterativa
prendeva un tempo esagerato. L'ho modificata in modo da usare prodotti
matrice-matrice su tutti gli psi invece che matrice-vettore su ogni
psi, se piu' di 1/4 dei vettori non e' a convergenza. La cosa e' fatta
a naso e richiede ulteriori di prove, ma mi sembra che apporti dei
miglioramenti.
In TODO ho messo una lista di cose da fare.
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@145 c92efa57-630b-4861-b058-cf58834340f0
giannozz