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elpa
elpa
Commits
c008af1d
Commit
c008af1d
authored
Oct 12, 2016
by
Andreas Marek
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Fortran test for real driver interface
parent
d93d8cf5
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794 additions
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6 deletions
+794
-6
Makefile.am
Makefile.am
+21
-6
test/Fortran/test_driver_real.F90
test/Fortran/test_driver_real.F90
+387
-0
test/Fortran/test_driver_real_single.F90
test/Fortran/test_driver_real_single.F90
+386
-0
No files found.
Makefile.am
View file @
c008af1d
...
...
@@ -324,6 +324,8 @@ noinst_PROGRAMS = \
elpa2_test_complex@SUFFIX@
\
elpa2_test_complex_default@SUFFIX@
\
elpa2_test_complex_api@SUFFIX@
\
elpa2_test_complex_api@SUFFIX@
\
elpa_driver_real@SUFFIX@
\
elpa1_real_toeplitz@SUFFIX@
\
elpa1_real_transpose_multiply@SUFFIX@
\
elpa1_complex_transpose_multiply@SUFFIX@
\
...
...
@@ -348,7 +350,6 @@ noinst_PROGRAMS += \
elpa1_complex_cholesky_single_precision@SUFFIX@
\
elpa1_complex_invert_trm_single_precision@SUFFIX@
\
elpa2_test_complex_api_single_precision@SUFFIX@
\
elpa_driver_real_c_version_single_precision@SUFFIX@
\
elpa_driver_complex_c_version_single_precision@SUFFIX@
endif
...
...
@@ -359,9 +360,11 @@ noinst_PROGRAMS += \
elpa2_test_real_default_single_precision@SUFFIX@
\
elpa2_test_real_qr_single_precision@SUFFIX@
\
elpa2_test_real_api_single_precision@SUFFIX@
\
elpa_driver_real_single_precision@SUFFIX@
\
elpa1_real_transpose_multiply_single_precision@SUFFIX@
\
elpa1_real_cholesky_single_precision@SUFFIX@
\
elpa1_real_invert_trm_single_precision@SUFFIX@
\
elpa_driver_real_c_version_single_precision@SUFFIX@
\
elpa1_real_toeplitz_single_precision@SUFFIX@
endif
...
...
@@ -519,6 +522,11 @@ elpa2_test_complex_api@SUFFIX@_LDADD = $(build_lib)
elpa2_test_complex_api@SUFFIX@
_FCFLAGS
=
$(AM_FCFLAGS)
@FC_MODOUT@private_modules @FC_MODINC@private_modules
EXTRA_elpa2_test_complex_api@SUFFIX@
_DEPENDENCIES
=
test
/Fortran/elpa_print_headers.X90
elpa_driver_real@SUFFIX@
_SOURCES
=
test
/Fortran/test_driver_real.F90
elpa_driver_real@SUFFIX@
_LDADD
=
$(build_lib)
elpa_driver_real@SUFFIX@
_FCFLAGS
=
$(AM_FCFLAGS)
@FC_MODOUT@private_modules @FC_MODINC@private_modules
EXTRA_elpa_driver_real@SUFFIX@
_DEPENDENCIES
=
test
/Fortran/elpa_print_headers.X90
elpa2_print_kernels@SUFFIX@
_SOURCES
=
src/elpa2_print_kernels.F90
elpa2_print_kernels@SUFFIX@
_LDADD
=
$(build_lib)
elpa2_print_kernels@SUFFIX@
_FCFLAGS
=
$(AM_FCFLAGS)
@FC_MODOUT@private_modules @FC_MODINC@private_modules
...
...
@@ -535,6 +543,11 @@ elpa2_test_real_single_precision@SUFFIX@_LDADD = $(build_lib)
elpa2_test_real_single_precision@SUFFIX@
_FCFLAGS
=
$(AM_FCFLAGS)
@FC_MODOUT@private_modules @FC_MODINC@private_modules
EXTRA_elpa2_test_real_single_precision@SUFFIX@
_DEPENDENCIES
=
test
/Fortran/elpa_print_headers.X90
elpa_driver_real_single_precision@SUFFIX@
_SOURCES
=
test
/Fortran/test_driver_real_single.F90
elpa_driver_real_single_precision@SUFFIX@
_LDADD
=
$(build_lib)
elpa_driver_real_single_precision@SUFFIX@
_FCFLAGS
=
$(AM_FCFLAGS)
@FC_MODOUT@private_modules @FC_MODINC@private_modules
EXTRA_elpa_driver_real_single_precision@SUFFIX@
_DEPENDENCIES
=
test
/Fortran/elpa_print_headers.X90
elpa1_real_toeplitz_single_precision@SUFFIX@
_SOURCES
=
test
/Fortran/test_toeplitz_single.F90
elpa1_real_toeplitz_single_precision@SUFFIX@
_LDADD
=
$(build_lib)
elpa1_real_toeplitz_single_precision@SUFFIX@
_FCFLAGS
=
$(AM_FCFLAGS)
@FC_MODOUT@private_modules @FC_MODINC@private_modules
...
...
@@ -545,6 +558,11 @@ elpa1_real_transpose_multiply_single_precision@SUFFIX@_LDADD = $(build_lib)
elpa1_real_transpose_multiply_single_precision@SUFFIX@
_FCFLAGS
=
$(AM_FCFLAGS)
@FC_MODOUT@private_modules @FC_MODINC@private_modules
EXTRA_elpa1_real_transpose_multiply_single_precision@SUFFIX@
_DEPENDENCIES
=
test
/Fortran/elpa_print_headers.X90
elpa_driver_real_c_version_single_precision@SUFFIX@
_SOURCES
=
test
/C/elpa_driver_real_c_version_single.c
elpa_driver_real_c_version_single_precision@SUFFIX@
_LDADD
=
$(build_lib)
$(FCLIBS)
elpa_driver_real_c_version_single_precision@SUFFIX@
_FCFLAGS
=
$(AM_FCFLAGS)
@FC_MODOUT@private_modules @FC_MODINC@private_modules
EXTRA_elpa_driver_real_c_version_single_precision@SUFFIX@
_DEPENDENCIES
=
test
/Fortran/elpa_print_headers.X90
elpa1_real_cholesky_single_precision@SUFFIX@
_SOURCES
=
test
/Fortran/test_cholesky_real_single.F90
elpa1_real_cholesky_single_precision@SUFFIX@
_LDADD
=
$(build_lib)
elpa1_real_cholesky_single_precision@SUFFIX@
_FCFLAGS
=
$(AM_FCFLAGS)
@FC_MODOUT@private_modules @FC_MODINC@private_modules
...
...
@@ -579,11 +597,6 @@ elpa1_test_complex_single_precision@SUFFIX@_LDADD = $(build_lib)
elpa1_test_complex_single_precision@SUFFIX@
_FCFLAGS
=
$(AM_FCFLAGS)
@FC_MODOUT@private_modules @FC_MODINC@private_modules
EXTRA_elpa1_test_complex_single_precision@SUFFIX@
_DEPENDENCIES
=
test
/Fortran/elpa_print_headers.X90
elpa_driver_real_c_version_single_precision@SUFFIX@
_SOURCES
=
test
/C/elpa_driver_real_c_version_single.c
elpa_driver_real_c_version_single_precision@SUFFIX@
_LDADD
=
$(build_lib)
$(FCLIBS)
elpa_driver_real_c_version_single_precision@SUFFIX@
_FCFLAGS
=
$(AM_FCFLAGS)
@FC_MODOUT@private_modules @FC_MODINC@private_modules
EXTRA_elpa_driver_real_c_version_single_precision@SUFFIX@
_DEPENDENCIES
=
test
/Fortran/elpa_print_headers.X90
elpa_driver_complex_c_version_single_precision@SUFFIX@
_SOURCES
=
test
/C/elpa_driver_complex_c_version_single.c
elpa_driver_complex_c_version_single_precision@SUFFIX@
_LDADD
=
$(build_lib)
$(FCLIBS)
elpa_driver_complex_c_version_single_precision@SUFFIX@
_FCFLAGS
=
$(AM_FCFLAGS)
@FC_MODOUT@private_modules @FC_MODINC@private_modules
...
...
@@ -659,6 +672,7 @@ check_SCRIPTS = \
elpa2_test_complex_default@SUFFIX@.sh
\
elpa2_test_real_api@SUFFIX@.sh
\
elpa2_test_complex_api@SUFFIX@.sh
\
elpa_driver_real@SUFFIX@.sh
\
elpa1_real_toeplitz@SUFFIX@.sh
\
elpa1_test_real_with_c@SUFFIX@.sh
\
elpa1_real_cholesky@SUFFIX@.sh
\
...
...
@@ -681,6 +695,7 @@ check_SCRIPTS += \
elpa2_test_real_single_precision@SUFFIX@.sh
\
elpa2_test_real_default_single_precision@SUFFIX@.sh
\
elpa2_test_real_qr_single_precision@SUFFIX@.sh
\
elpa_driver_real_single_precision@SUFFIX@.sh
\
elpa1_real_cholesky_single_precision@SUFFIX@.sh
\
elpa1_real_invert_trm_single_precision@SUFFIX@.sh
\
elpa1_real_transpose_multiply_single_precision@SUFFIX@.sh
\
...
...
test/Fortran/test_driver_real.F90
0 → 100644
View file @
c008af1d
! This file is part of ELPA.
!
! The ELPA library was originally created by the ELPA consortium,
! consisting of the following organizations:
!
! - Max Planck Computing and Data Facility (MPCDF), formerly known as
! Rechenzentrum Garching der Max-Planck-Gesellschaft (RZG),
! - Bergische Universität Wuppertal, Lehrstuhl für angewandte
! Informatik,
! - Technische Universität München, Lehrstuhl für Informatik mit
! Schwerpunkt Wissenschaftliches Rechnen ,
! - Fritz-Haber-Institut, Berlin, Abt. Theorie,
! - Max-Plack-Institut für Mathematik in den Naturwissenschaften,
! Leipzig, Abt. Komplexe Strukutren in Biologie und Kognition,
! and
! - IBM Deutschland GmbH
!
!
! More information can be found here:
! http://elpa.mpcdf.mpg.de/
!
! ELPA is free software: you can redistribute it and/or modify
! it under the terms of the version 3 of the license of the
! GNU Lesser General Public License as published by the Free
! Software Foundation.
!
! ELPA is distributed in the hope that it will be useful,
! but WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
! GNU Lesser General Public License for more details.
!
! You should have received a copy of the GNU Lesser General Public License
! along with ELPA. If not, see <http://www.gnu.org/licenses/>
!
! ELPA reflects a substantial effort on the part of the original
! ELPA consortium, and we ask you to respect the spirit of the
! license that we chose: i.e., please contribute any changes you
! may have back to the original ELPA library distribution, and keep
! any derivatives of ELPA under the same license that we chose for
! the original distribution, the GNU Lesser General Public License.
!
!
#include "config-f90.h"
!>
!> Fortran test programm to demonstrates the use of
!> ELPA 2 real case library.
!> If "HAVE_REDIRECT" was defined at build time
!> the stdout and stderr output of each MPI task
!> can be redirected to files if the environment
!> variable "REDIRECT_ELPA_TEST_OUTPUT" is set
!> to "true".
!>
!> By calling executable [arg1] [arg2] [arg3] [arg4]
!> one can define the size (arg1), the number of
!> Eigenvectors to compute (arg2), and the blocking (arg3).
!> If these values are not set default values (4000, 1500, 16)
!> are choosen.
!> If these values are set the 4th argument can be
!> "output", which specifies that the EV's are written to
!> an ascii file.
!>
!> The real ELPA 2 kernel is set as the default kernel.
!> However, this can be overriden by setting
!> the environment variable "REAL_ELPA_KERNEL" to an
!> appropiate value.
!>
program
test_real2
!-------------------------------------------------------------------------------
! Standard eigenvalue problem - REAL version
!
! This program demonstrates the use of the ELPA module
! together with standard scalapack routines
!
! Copyright of the original code rests with the authors inside the ELPA
! consortium. The copyright of any additional modifications shall rest
! with their original authors, but shall adhere to the licensing terms
! distributed along with the original code in the file "COPYING".
!
!-------------------------------------------------------------------------------
use
precision
use
ELPA
use
elpa_utilities
,
only
:
error_unit
#ifdef WITH_OPENMP
use
test_util
#endif
use
mod_check_for_gpu
,
only
:
check_for_gpu
use
mod_read_input_parameters
use
mod_check_correctness
use
mod_setup_mpi
use
mod_blacs_infrastructure
use
mod_prepare_matrix
use
elpa_mpi
#ifdef HAVE_REDIRECT
use
redirect
#endif
#ifdef HAVE_DETAILED_TIMINGS
use
timings
#endif
use
output_types
implicit
none
!-------------------------------------------------------------------------------
! Please set system size parameters below!
! na: System size
! nev: Number of eigenvectors to be calculated
! nblk: Blocking factor in block cyclic distribution
!-------------------------------------------------------------------------------
integer
(
kind
=
ik
)
::
nblk
integer
(
kind
=
ik
)
::
na
,
nev
integer
(
kind
=
ik
)
::
np_rows
,
np_cols
,
na_rows
,
na_cols
integer
(
kind
=
ik
)
::
myid
,
nprocs
,
my_prow
,
my_pcol
,
mpi_comm_rows
,
mpi_comm_cols
integer
(
kind
=
ik
)
::
i
,
mpierr
,
my_blacs_ctxt
,
sc_desc
(
9
),
info
,
nprow
,
npcol
integer
,
external
::
numroc
real
(
kind
=
rk8
),
allocatable
::
a
(:,:),
z
(:,:),
tmp1
(:,:),
tmp2
(:,:),
as
(:,:),
ev
(:)
integer
(
kind
=
ik
)
::
iseed
(
4096
)
! Random seed, size should be sufficient for every generator
integer
(
kind
=
ik
)
::
STATUS
#ifdef WITH_OPENMP
integer
(
kind
=
ik
)
::
omp_get_max_threads
,
required_mpi_thread_level
,
provided_mpi_thread_level
#endif
type
(
output_t
)
::
write_to_file
logical
::
success
character
(
len
=
8
)
::
task_suffix
integer
(
kind
=
ik
)
::
j
logical
::
gpuAvailable
integer
(
kind
=
ik
)
::
numberOfDevices
success
=
.true.
gpuAvailable
=
.false.
call
read_input_parameters
(
na
,
nev
,
nblk
,
write_to_file
)
!-------------------------------------------------------------------------------
! MPI Initialization
call
setup_mpi
(
myid
,
nprocs
)
gpuAvailable
=
check_for_gpu
(
myid
,
numberOfDevices
)
STATUS
=
0
#define DATATYPE REAL
#include "elpa_print_headers.X90"
#ifdef HAVE_DETAILED_TIMINGS
! initialise the timing functionality
#ifdef HAVE_LIBPAPI
call
timer
%
measure_flops
(
.true.
)
#endif
call
timer
%
measure_allocated_memory
(
.true.
)
call
timer
%
measure_virtual_memory
(
.true.
)
call
timer
%
measure_max_allocated_memory
(
.true.
)
call
timer
%
set_print_options
(&
#ifdef HAVE_LIBPAPI
print_flop_count
=
.true.
,
&
print_flop_rate
=
.true.
,
&
#endif
print_allocated_memory
=
.true.
,
&
print_virtual_memory
=
.true.
,
&
print_max_allocated_memory
=
.true.
)
call
timer
%
enable
()
call
timer
%
start
(
"program"
)
#endif
!-------------------------------------------------------------------------------
! Selection of number of processor rows/columns
! We try to set up the grid square-like, i.e. start the search for possible
! divisors of nprocs with a number next to the square root of nprocs
! and decrement it until a divisor is found.
do
np_cols
=
NINT
(
SQRT
(
REAL
(
nprocs
))),
2
,
-1
if
(
mod
(
nprocs
,
np_cols
)
==
0
)
exit
enddo
! at the end of the above loop, nprocs is always divisible by np_cols
np_rows
=
nprocs
/
np_cols
if
(
myid
==
0
)
then
print
*
print
'(a)'
,
'Standard eigenvalue problem - REAL version'
print
*
print
'(3(a,i0))'
,
'Matrix size='
,
na
,
', Number of eigenvectors='
,
nev
,
', Block size='
,
nblk
print
'(3(a,i0))'
,
'Number of processor rows='
,
np_rows
,
', cols='
,
np_cols
,
', total='
,
nprocs
print
*
endif
!-------------------------------------------------------------------------------
! Set up BLACS context and MPI communicators
!
! The BLACS context is only necessary for using Scalapack.
!
! For ELPA, the MPI communicators along rows/cols are sufficient,
! and the grid setup may be done in an arbitrary way as long as it is
! consistent (i.e. 0<=my_prow<np_rows, 0<=my_pcol<np_cols and every
! process has a unique (my_prow,my_pcol) pair).
call
set_up_blacsgrid
(
mpi_comm_world
,
my_blacs_ctxt
,
np_rows
,
np_cols
,
&
nprow
,
npcol
,
my_prow
,
my_pcol
)
if
(
myid
==
0
)
then
print
'(a)'
,
'| Past BLACS_Gridinfo.'
end
if
! All ELPA routines need MPI communicators for communicating within
! rows or columns of processes, these are set in elpa_get_communicators.
mpierr
=
elpa_get_communicators
(
mpi_comm_world
,
my_prow
,
my_pcol
,
&
mpi_comm_rows
,
mpi_comm_cols
)
if
(
myid
==
0
)
then
print
'(a)'
,
'| Past split communicator setup for rows and columns.'
end
if
call
set_up_blacs_descriptor
(
na
,
nblk
,
my_prow
,
my_pcol
,
np_rows
,
np_cols
,
&
na_rows
,
na_cols
,
sc_desc
,
my_blacs_ctxt
,
info
)
if
(
myid
==
0
)
then
print
'(a)'
,
'| Past scalapack descriptor setup.'
end
if
!-------------------------------------------------------------------------------
! Allocate matrices and set up a test matrix for the eigenvalue problem
#ifdef HAVE_DETAILED_TIMINGS
call
timer
%
start
(
"set up matrix"
)
#endif
allocate
(
a
(
na_rows
,
na_cols
))
allocate
(
z
(
na_rows
,
na_cols
))
allocate
(
as
(
na_rows
,
na_cols
))
allocate
(
ev
(
na
))
call
prepare_matrix_double
(
na
,
myid
,
sc_desc
,
iseed
,
a
,
z
,
as
)
#ifdef HAVE_DETAILED_TIMINGS
call
timer
%
stop
(
"set up matrix"
)
#endif
! set print flag in elpa1
elpa_print_times
=
.true.
!-------------------------------------------------------------------------------
! Calculate eigenvalues/eigenvectors
if
(
myid
==
0
)
then
print
'(a)'
,
'| Entering one-stage ELPA solver ... '
print
*
end
if
#ifdef WITH_MPI
call
mpi_barrier
(
mpi_comm_world
,
mpierr
)
! for correct timings only
#endif
success
=
elpa_solve_evp_real_double
(
na
,
nev
,
a
,
na_rows
,
ev
,
z
,
na_rows
,
nblk
,
na_cols
,
&
mpi_comm_rows
,
mpi_comm_cols
,
mpi_comm_world
,
method
=
"1stage"
)
if
(
.not.
(
success
))
then
write
(
error_unit
,
*
)
"elpa_solve_evp_real produced an error! Aborting..."
#ifdef WITH_MPI
call
MPI_ABORT
(
mpi_comm_world
,
1
,
mpierr
)
#endif
endif
if
(
myid
==
0
)
then
print
'(a)'
,
'| One-step ELPA solver complete.'
print
*
end
if
a
=
as
z
=
as
if
(
myid
==
0
)
then
print
'(a)'
,
'| Entering two-stage ELPA solver ... '
print
*
end
if
#ifdef WITH_MPI
call
mpi_barrier
(
mpi_comm_world
,
mpierr
)
! for correct timings only
#endif
success
=
elpa_solve_evp_real_double
(
na
,
nev
,
a
,
na_rows
,
ev
,
z
,
na_rows
,
nblk
,
na_cols
,
&
mpi_comm_rows
,
mpi_comm_cols
,
mpi_comm_world
,
method
=
"2stage"
)
if
(
.not.
(
success
))
then
write
(
error_unit
,
*
)
"elpa_solve_evp_real produced an error! Aborting..."
#ifdef WITH_MPI
call
MPI_ABORT
(
mpi_comm_world
,
1
,
mpierr
)
#endif
endif
if
(
myid
==
0
)
then
print
'(a)'
,
'| two-step ELPA solver complete.'
print
*
end
if
a
=
as
z
=
as
if
(
myid
==
0
)
then
print
'(a)'
,
'| Entering auto-chosen ELPA solver ... '
print
*
end
if
#ifdef WITH_MPI
call
mpi_barrier
(
mpi_comm_world
,
mpierr
)
! for correct timings only
#endif
success
=
elpa_solve_evp_real_double
(
na
,
nev
,
a
,
na_rows
,
ev
,
z
,
na_rows
,
nblk
,
na_cols
,
&
mpi_comm_rows
,
mpi_comm_cols
,
mpi_comm_world
,
method
=
"auto"
)
if
(
.not.
(
success
))
then
write
(
error_unit
,
*
)
"elpa_solve_evp_real produced an error! Aborting..."
#ifdef WITH_MPI
call
MPI_ABORT
(
mpi_comm_world
,
1
,
mpierr
)
#endif
endif
if
(
myid
==
0
)
then
print
'(a)'
,
'| auto-chosen ELPA solver complete.'
print
*
end
if
if
(
myid
==
0
)
print
*
,
'Time transform to tridi :'
,
time_evp_fwd
if
(
myid
==
0
)
print
*
,
'Time solve tridi :'
,
time_evp_solve
if
(
myid
==
0
)
print
*
,
'Time transform back EVs :'
,
time_evp_back
if
(
myid
==
0
)
print
*
,
'Total time (sum above) :'
,
time_evp_back
+
time_evp_solve
+
time_evp_fwd
! if(write_to_file%eigenvectors) then
! write(unit = task_suffix, fmt = '(i8.8)') myid
! open(17,file="EVs_real2_out_task_"//task_suffix(1:8)//".txt",form='formatted',status='new')
! write(17,*) "Part of eigenvectors: na_rows=",na_rows,"of na=",na," na_cols=",na_cols," of na=",na
!
! do i=1,na_rows
! do j=1,na_cols
! write(17,*) "row=",i," col=",j," element of eigenvector=",z(i,j)
! enddo
! enddo
! close(17)
! endif
!
! if(write_to_file%eigenvalues) then
! if (myid == 0) then
! open(17,file="Eigenvalues_real2_out.txt",form='formatted',status='new')
! do i=1,na
! write(17,*) i,ev(i)
! enddo
! close(17)
! endif
! endif
!-------------------------------------------------------------------------------
! Test correctness of result (using plain scalapack routines)
allocate
(
tmp1
(
na_rows
,
na_cols
))
allocate
(
tmp2
(
na_rows
,
na_cols
))
status
=
check_correctness_double
(
na
,
nev
,
as
,
z
,
ev
,
sc_desc
,
myid
,
tmp1
,
tmp2
)
deallocate
(
a
)
deallocate
(
as
)
deallocate
(
z
)
deallocate
(
tmp1
)
deallocate
(
tmp2
)
deallocate
(
ev
)
#ifdef HAVE_DETAILED_TIMINGS
call
timer
%
stop
(
"program"
)
print
*
,
" "
print
*
,
"Timings program:"
call
timer
%
print
(
"program"
)
print
*
,
" "
print
*
,
"End timings program"
#endif
#ifdef WITH_MPI
call
blacs_gridexit
(
my_blacs_ctxt
)
call
mpi_finalize
(
mpierr
)
#endif
call
EXIT
(
STATUS
)
end
!-------------------------------------------------------------------------------
test/Fortran/test_driver_real_single.F90
0 → 100644
View file @
c008af1d
! This file is part of ELPA.
!
! The ELPA library was originally created by the ELPA consortium,
! consisting of the following organizations:
!
! - Max Planck Computing and Data Facility (MPCDF), formerly known as
! Rechenzentrum Garching der Max-Planck-Gesellschaft (RZG),
! - Bergische Universität Wuppertal, Lehrstuhl für angewandte
! Informatik,
! - Technische Universität München, Lehrstuhl für Informatik mit
! Schwerpunkt Wissenschaftliches Rechnen ,
! - Fritz-Haber-Institut, Berlin, Abt. Theorie,
! - Max-Plack-Institut für Mathematik in den Naturwissenschaften,
! Leipzig, Abt. Komplexe Strukutren in Biologie und Kognition,
! and
! - IBM Deutschland GmbH
!
!
! More information can be found here:
! http://elpa.mpcdf.mpg.de/
!
! ELPA is free software: you can redistribute it and/or modify
! it under the terms of the version 3 of the license of the
! GNU Lesser General Public License as published by the Free
! Software Foundation.
!
! ELPA is distributed in the hope that it will be useful,
! but WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
! GNU Lesser General Public License for more details.
!
! You should have received a copy of the GNU Lesser General Public License
! along with ELPA. If not, see <http://www.gnu.org/licenses/>
!
! ELPA reflects a substantial effort on the part of the original
! ELPA consortium, and we ask you to respect the spirit of the
! license that we chose: i.e., please contribute any changes you
! may have back to the original ELPA library distribution, and keep
! any derivatives of ELPA under the same license that we chose for
! the original distribution, the GNU Lesser General Public License.
!
!
#include "config-f90.h"
!>
!> Fortran test programm to demonstrates the use of
!> ELPA 2 real case library.
!> If "HAVE_REDIRECT" was defined at build time
!> the stdout and stderr output of each MPI task
!> can be redirected to files if the environment
!> variable "REDIRECT_ELPA_TEST_OUTPUT" is set
!> to "true".
!>
!> By calling executable [arg1] [arg2] [arg3] [arg4]
!> one can define the size (arg1), the number of
!> Eigenvectors to compute (arg2), and the blocking (arg3).
!> If these values are not set default values (4000, 1500, 16)
!> are choosen.
!> If these values are set the 4th argument can be
!> "output", which specifies that the EV's are written to
!> an ascii file.
!>
!> The real ELPA 2 kernel is set as the default kernel.
!> However, this can be overriden by setting
!> the environment variable "REAL_ELPA_KERNEL" to an
!> appropiate value.
!>
program
test_real2
!-------------------------------------------------------------------------------
! Standard eigenvalue problem - REAL version
!
! This program demonstrates the use of the ELPA module
! together with standard scalapack routines
!
! Copyright of the original code rests with the authors inside the ELPA
! consortium. The copyright of any additional modifications shall rest
! with their original authors, but shall adhere to the licensing terms
! distributed along with the original code in the file "COPYING".
!
!-------------------------------------------------------------------------------
use
precision
use
ELPA
use
elpa_utilities
,
only
:
error_unit
#ifdef WITH_OPENMP
use
test_util
#endif
use
mod_check_for_gpu
,
only
:
check_for_gpu
use
mod_read_input_parameters
use
mod_check_correctness
use
mod_setup_mpi
use
mod_blacs_infrastructure
use
mod_prepare_matrix
use
elpa_mpi
#ifdef HAVE_REDIRECT
use
redirect
#endif
#ifdef HAVE_DETAILED_TIMINGS
use
timings
#endif
use
output_types
implicit
none
!-------------------------------------------------------------------------------
! Please set system size parameters below!
! na: System size
! nev: Number of eigenvectors to be calculated
! nblk: Blocking factor in block cyclic distribution
!-------------------------------------------------------------------------------
integer
(
kind
=
ik
)
::
nblk
integer
(
kind
=
ik
)
::
na
,
nev
integer
(
kind
=
ik
)
::
np_rows
,
np_cols
,
na_rows
,
na_cols
integer
(
kind
=
ik
)
::
myid
,
nprocs
,
my_prow
,
my_pcol
,
mpi_comm_rows
,
mpi_comm_cols
integer
(
kind
=
ik
)
::
i
,
mpierr
,
my_blacs_ctxt
,
sc_desc
(
9
),
info
,
nprow
,
npcol
integer
,
external
::
numroc
real
(
kind
=
rk4
),
allocatable
::
a
(:,:),
z
(:,:),
tmp1
(:,:),
tmp2
(:,:),
as
(:,:),
ev
(:)
integer
(
kind
=
ik
)
::
iseed
(
4096
)
! Random seed, size should be sufficient for every generator
integer
(
kind
=
ik
)
::
STATUS
#ifdef WITH_OPENMP
integer
(
kind
=
ik
)
::
omp_get_max_threads
,
required_mpi_thread_level
,
provided_mpi_thread_level
#endif
type
(
output_t
)
::
write_to_file
logical
::
success
character
(
len
=
8
)
::
task_suffix
integer
(
kind
=
ik
)
::
j
logical
::
gpuAvailable
integer
(
kind
=
ik
)
::
numberOfDevices
success
=
.true.
gpuAvailable
=
.false.
call
read_input_parameters
(
na
,
nev
,
nblk
,
write_to_file
)
!-------------------------------------------------------------------------------
! MPI Initialization
call
setup_mpi
(
myid
,
nprocs
)
gpuAvailable
=
check_for_gpu
(
myid
,
numberOfDevices
)
STATUS
=
0
#define DATATYPE REAL
#include "elpa_print_headers.X90"
#ifdef HAVE_DETAILED_TIMINGS
! initialise the timing functionality
#ifdef HAVE_LIBPAPI
call
timer
%
measure_flops
(
.true.
)
#endif
call
timer
%
measure_allocated_memory
(
.true.
)
call
timer
%
measure_virtual_memory
(
.true.
)
call
timer
%
measure_max_allocated_memory
(
.true.
)
call
timer
%
set_print_options
(&
#ifdef HAVE_LIBPAPI
print_flop_count
=
.true.
,
&