quantum-espresso/LAXlib
degironc 4636bca635 KS_Solvers directory has been created with three subdirectories:
KS_Solvers/CG, KS_Solvers/Davidson, KS_Solvers/Davidson_RCI.
Two are currently used by QE, the third one implements the Davidson
diagonalization within the Reverse Communication Interface paradigm,
courtesy of Micael Oliveira.

KS_Solvers routines depend only on lower level libraries, notably UtilXlib, 
LAXlib, (SCA)LAPACK, and BLAS.

reorganization can be improved. For instance some duplicated routines like
cdiaghg and rdiaghg could/should be moved in LAXlib. This could reduce the need
to include  KS_Solvers directories in the link step of many codes.    

Minimal changes to calling sequence have been made, essentially just adding
h_psi,s_psi,g_psi and h_1psi,s_1psi routines names as arguments (with a
specific calling sequence ihardcode inside the routines that agree with PWSCF one). 
This could be avoided adopting the RCI paradigm.

Compiled in serial and parallel, 177/182 pw tests passed (3 that were failing 
even before on my laptop pw-berry, pw-langevin, pw-pawatom + 2 unknown==not tested), 
12 /17 cp tests passed (some o2-us-para-pbe-X fail but the same was for the 
original version)

I assume the modified calling procedure is working and the problem lies somewhere else.
 
Randomly tested some examples in pw, ph, pwcond and it seams to work.

Please report any problem.





git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@13644 c92efa57-630b-4861-b058-cf58834340f0
2017-07-29 12:19:19 +00:00
..
Makefile mp_diag.f90 moved from Modules to LAXlib 2017-07-28 14:21:28 +00:00
README.TEST - adding command line parameter "-n" to specify the matrix size 2016-02-13 19:30:39 +00:00
distools.f90
dspev_drv.f90 Patches by Pietro Bonfa' for new ELPA; configure updated 2017-06-30 08:44:25 +00:00
la_error.f90 QE made ready to use MPI module instead of mpif.h include file. See the three 2016-11-25 14:11:28 +00:00
la_param.f90 QE made ready to use MPI module instead of mpif.h include file. See the three 2016-11-25 14:11:28 +00:00
la_types.f90 - Scalapack context parameter added to the linear algebra descriptor 2016-02-12 09:41:25 +00:00
make.depend mp_diag.f90 moved from Modules to LAXlib 2017-07-28 14:21:28 +00:00
mp_diag.f90 KS_Solvers directory has been created with three subdirectories: 2017-07-29 12:19:19 +00:00
ptoolkit.f90 QE made ready to use MPI module instead of mpif.h include file. See the three 2016-11-25 14:11:28 +00:00
test.f90 QE made ready to use MPI module instead of mpif.h include file. See the three 2016-11-25 14:11:28 +00:00
transto.f90 QE made ready to use MPI module instead of mpif.h include file. See the three 2016-11-25 14:11:28 +00:00
zhpev_drv.f90 Patches by Pietro Bonfa' for new ELPA; configure updated 2017-06-30 08:44:25 +00:00

README.TEST

This library provides a Testing and Timing code
to asses the performance of Linear Algebra subroutines, 
estimate the scalability and the size of your simulation.

To compile the test program, once you have properly
configure QE, go inside the directory LAXlib and
type:
	make TEST

Then you can run your LA tests using command like:

	mpirun -np 4 ./la_test.x -n 1024

or, in case of serial build

	./la_test.x -n 1024

where 1024 is the size of the matrix to be processed.