configure.ac 49.8 KB
Newer Older
1
AC_PREREQ([2.69])
2

3
4
# The version is set in elpa.spec, to have a single point of reference
AC_INIT([elpa],m4_esyscmd_s([awk '/^ *Version:/ {print $2;}' elpa.spec]), [elpa-library@mpcdf.mpg.de])
5
AC_SUBST([PACKAGE_VERSION])
6

7
AC_CONFIG_SRCDIR([src/elpa.F90])
8
9

AM_INIT_AUTOMAKE([foreign -Wall subdir-objects])
10

11
12
13
14
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_HEADERS([config.h])
AM_SILENT_RULES([yes])

15
16
# ABI version
#
17
18
19
20
21
22
23
24
25
26
27
28
29
# Set the libtool library version, see LIBRARY_INTERFACE
#
# See http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
#
# [c:r:a]
#
# c: The currently implement interface
# r: The revision number of the current interface, that is the number
#    of released source-code changes for the current interface
# a: The "age" is the number of interfaces prior to c that are also supported
#    by the current interface, as they are ABI compatible (e.g. only new symbols
#    were added by the new interface)
#
Andreas Marek's avatar
Andreas Marek committed
30
AC_SUBST([ELPA_SO_VERSION], [13:0:0])
31

32
33
34
35
36
37
38
# AC_DEFINE_SUBST(NAME, VALUE, DESCRIPTION)
# -----------------------------------------
AC_DEFUN([AC_DEFINE_SUBST], [
AC_DEFINE([$1], [$2], [$3])
AC_SUBST([$1], ['$2'])
])

39
40
# API Version
AC_DEFINE([EARLIEST_API_VERSION], [20170403], [Earliest supported ELPA API version])
41
42

AC_DEFINE_SUBST(CURRENT_API_VERSION, 20181113, "Current ELPA API version")
Andreas Marek's avatar
Andreas Marek committed
43
44
# Autotune Version
AC_DEFINE([EARLIEST_AUTOTUNE_VERSION], [20171201], [Earliest ELPA API version, which supports autotuning])
45
AC_DEFINE([CURRENT_AUTOTUNE_VERSION], [20181113], [Current ELPA autotune version])
46
AC_DEFINE_SUBST(CURRENT_AUTOTUNE_VERSION, 20181113, "Current ELPA autotune version")
47

48
49
50
51
52
AX_CHECK_GNU_MAKE()
if test x$_cv_gnu_make_command = x ; then
        AC_MSG_ERROR([Need GNU Make])
fi

Andreas Marek's avatar
Andreas Marek committed
53
54
55
AC_MSG_CHECKING(whether legacy interface should be provided)
AC_ARG_ENABLE([legacy-interface],
              AS_HELP_STRING([--disable-legacy-interface],
56
                             [do not build legacy API, default yes]),
Andreas Marek's avatar
Andreas Marek committed
57
58
59
60
61
62
63
              [
	       if test x"$enableval" = x"yes"; then
	         enable_legayc=yes
	       else
	         enable_legacy=no
	       fi
	       ],
64
              [enable_legacy=yes])
Andreas Marek's avatar
Andreas Marek committed
65
AC_MSG_RESULT([${enable_legacy}])
66
AM_CONDITIONAL([ENABLE_LEGACY],[test x"$enable_legacy" = x"yes"])
Andreas Marek's avatar
Andreas Marek committed
67
68
69
70
if test x"${enable_legacy}" = x"yes"; then
        AC_DEFINE([ENABLE_LEGACY], [1], [enable legacy interface])
fi

71
72
73
74
75

# gnu-make fortran module dependencies
m4_include([fdep/fortran_dependencies.m4])
FDEP_F90_GNU_MAKE_DEPS

76

77
dnl OpenMP
78
m4_include([m4/ax_elpa_openmp.m4])
79
80
AC_MSG_CHECKING(whether --enable-openmp is specified)
AC_ARG_ENABLE([openmp],
81
82
              AS_HELP_STRING([--enable-openmp],
                             [use OpenMP threading, default no.]),
Andreas Marek's avatar
Andreas Marek committed
83
84
85
86
87
88
89
              [
	       if test x"$enableval" = x"yes"; then
	         enable_openmp=yes
	       else
	         enable_openmp=no
	       fi
	       ],
90
              [enable_openmp=no])
91
92
93
AC_MSG_RESULT([${enable_openmp}])
AM_CONDITIONAL([WITH_OPENMP],[test x"$enable_openmp" = x"yes"])
if test x"${enable_openmp}" = x"yes"; then
94
        AC_DEFINE([WITH_OPENMP], [1], [use OpenMP threading])
95
96
fi

97

98
99
dnl mpi
AC_ARG_WITH(mpi, [AS_HELP_STRING([--with-mpi=[[yes|no]]], [compile with MPI. Default: yes])],,[with_mpi=yes])
100
AM_CONDITIONAL([WITH_MPI],[test x"$with_mpi" = x"yes"])
101
if test x"${with_mpi}" = x"yes"; then
102
  AC_DEFINE([WITH_MPI], [1], [use MPI])
103
104
fi

105
106
107
108
109
110

dnl Scalapack tests
AC_MSG_CHECKING(whether --enable-scalapack-tests is specified)
AC_ARG_ENABLE([scalapack-tests],
              AS_HELP_STRING([--enable-scalapack-tests],
                             [build SCALAPACK test cases for performance comparison, needs MPI, default no.]),
Andreas Marek's avatar
Andreas Marek committed
111
112
113
114
115
116
117
              [
	       if test x"$enableval" = x"yes"; then
	         enable_scalapack_tests=yes
	       else
	         enable_scalapack_tests=no
	       fi
	       ],
118
119
120
121
122
123
124
125
126
127
128
129
              [enable_scalapack_tests="no"])
AC_MSG_RESULT([$enable_scalapack_tests])
if test x"${enable_scalapack_tests}" = x"yes"; then
        if test x"$with_mpi" = x"no"; then
                AC_MSG_ERROR([You cannot build the SCALAPCK test cases without MPI])
        fi
        AC_DEFINE([WITH_SCALAPACK_TESTS], [1], [build SCALAPACK test cases])
fi
AM_CONDITIONAL([WITH_SCALAPACK_TESTS], [test x"$enable_scalapack_tests" = x"yes"])


dnl C
130
AC_LANG_PUSH([C])
131

132
133
134
135
136
137
AX_PROG_CC_MPI([test x"$with_mpi" = x"yes"],[found_mpi_c=yes],[found_mpi_c=no])
if test x"$with_mpi" = x"yes"; then
  if test x"$found_mpi_c" = x"no"; then
    AC_MSG_ERROR([Could not compile an MPI C program])
  fi
fi
138

139
if test x"${enable_openmp}" = x"yes"; then
140
141
142
143
144
  AX_ELPA_OPENMP
  if test "$ac_cv_prog_cc_openmp" = unsupported; then
    AC_MSG_ERROR([Could not compile a C program with OpenMP, adjust CFLAGS])
  fi
  CFLAGS="$OPENMP_CFLAGS $CFLAGS"
145
fi
146

147
148
149
150
151
152
153
154

AX_CHECK_COMPILE_FLAG([-std=c11], [
  CFLAGS+=" -std=c11"
], [
  echo "C compiler cannot compile C11 code"
  exit -1
])

155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
AC_MSG_CHECKING(whether C compiler can use _Generic )
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
int main(int argc, char **argv) {
#define elpa_set(e, name, value, error) _Generic((value), \
                int: \
                  elpa_set_integer, \
                \
                double: \
                  elpa_set_double \
        )(e, name, value, error)

  return 0;
}
    ])],
    [can_compile_generic=yes],
    [can_compile_generic=no]
  )
AC_MSG_RESULT([${can_compile_generic}])
if test x"$can_compile_generic" != x"yes"; then
  AC_MSG_ERROR([C compiler cannot handle _Generic statement! Upgrade or change C compiler])
fi
AC_DEFINE([HAVE_VSX_SSE],[1],[Altivec VSX intrinsics are supported on this CPU])

178
AC_PROG_INSTALL
179
180
AM_PROG_AR
AM_PROG_AS
181
AC_PROG_CC_C99
182
AM_PROG_CC_C_O
183
AC_LANG_POP([C])
Andreas Marek's avatar
Andreas Marek committed
184
185

# Fortran
186
AC_LANG_PUSH([Fortran])
Andreas Marek's avatar
Andreas Marek committed
187
m4_include([m4/ax_prog_fc_mpi.m4])
188
189
190
191
192
193
AX_PROG_FC_MPI([test x"$with_mpi" = x"yes"],[found_mpi_f=yes],[found_mpi_f=no])
if test x"$with_mpi" = x"yes"; then
  if test x"$found_mpi_f" = x"no"; then
    AC_MSG_ERROR([Could not compile an MPI Fortran program])
  fi
fi
194

195
AC_FC_SRCEXT([F90])
196
197
198
199
200
AC_FC_FREEFORM
AC_FC_MODULE_FLAG
AC_FC_MODULE_OUTPUT_FLAG
AC_FC_LIBRARY_LDFLAGS

201

202
if test x"${enable_openmp}" = x"yes"; then
203
204
205
206
207
  AX_ELPA_OPENMP
  if test "$ac_cv_prog_fc_openmp" = unsupported; then
    AC_MSG_ERROR([Could not compile a Fortran program with OpenMP, adjust FCFLAGS])
  fi
  FCFLAGS="$OPENMP_FCFLAGS $FCFLAGS"
208
209
fi

210
211
dnl check which MPI binray invokes a MPI job
if test x"$with_mpi" = x"yes"; then
212
  AC_CHECK_PROGS([MPI_BINARY], [mpiexec.hydra mpiexec mpirun poe runjob srun], [no])
213
  if test x"$MPI_BINARY" = x"no"; then
214
    AC_MSG_ERROR([Could not find either of the MPI binaries: mpiexec.hydra, mpiexec, mpirun, poe, runjob, srun])
215
216
217
  fi
fi

218
219
220
dnl build with the possibilty to redirect stdout and stderr
dnl per MPI task in a file
AC_MSG_CHECKING(whether stdout/stderr file redirect should be enabled)
221
AC_ARG_ENABLE([redirect],
222
223
              [AS_HELP_STRING([--enable-redirect],
                              [for test programs, allow redirection of stdout/stderr per MPI taks in a file (useful for timing), default no.])],
Andreas Marek's avatar
Andreas Marek committed
224
225
226
227
228
229
230
              [
               if test x"$enableval" = x"yes"; then
                 enable_redirect=yes
               else
                 enable_redirect=no
               fi
	       ],
231
              [enable_redirect=no])
232
233
AC_MSG_RESULT([${enable_redirect}])

234
235
236
237
238
239
240
241
242
243
dnl check whether single precision is requested
AC_MSG_CHECKING(whether ELPA library should contain also single precision functions)
AC_ARG_ENABLE(single-precision,
              [AS_HELP_STRING([--enable-single-precision],
                              [build with single precision])],
              [want_single_precision="$enableval"],
              [want_single_precision="no"])
AC_MSG_RESULT([${want_single_precision}])


244
245
dnl redirect
if test x"${enable_redirect}" = x"yes"; then
246
247
  AC_DEFINE([HAVE_REDIRECT], [1], [Redirect stdout and stderr of test programs per MPI tasks to a file])
fi
248
249
250
AM_CONDITIONAL([HAVE_REDIRECT],[test x"$enable_redirect" = x"yes"])

dnl build with ftimings support
251

Andreas Marek's avatar
Andreas Marek committed
252
AC_ARG_ENABLE([timings],
253
254
              [AS_HELP_STRING([--disable-timings],
                              [more detailed timing, default yes])],
Andreas Marek's avatar
Andreas Marek committed
255
256
257
258
259
260
261
              [
               if test x"$enableval" = x"yes"; then
                 enable_timings=yes
               else
                 enable_timings=no
               fi
	       ],
262
              [enable_timings=yes])
263
264
265
266

if test x"${enable_timings}" = x"yes"; then
  AC_DEFINE([HAVE_DETAILED_TIMINGS], [1], [Enable more timing])
fi
267
AM_CONDITIONAL([HAVE_DETAILED_TIMINGS], [test x"$enable_timings" = x"yes"])
268
269

dnl PAPI for ftimings
270
AC_LANG_PUSH([C])
271
AC_ARG_WITH([papi],
272
273
            [AS_HELP_STRING([--with-papi],
                            [Use PAPI to also measure flop count in the detailed timing (--enable-timing), disabled by default])],
Andreas Marek's avatar
Andreas Marek committed
274
275
276
277
278
279
280
            [
               if test x"$enableval" = x"yes"; then
                 with_papi=yes
               else
                 with_papi=no
               fi
	     ],
281
            [with_papi="no"])
282
283
if test x"${enable_timings}" = x"yes"; then
  if test x"$with_papi" = x"yes" ; then
284
    AC_SEARCH_LIBS([PAPI_library_init], [papi], [papi_found=yes], [papi_found=no])
285
286
    if test x"$papi_found" = x"no" ; then
      AC_MSG_ERROR(["Could not find usable PAPI installation, please install or adjust CFLAGS, LDFLAGS"])
287
288
289
290
    fi
    AC_DEFINE([HAVE_LIBPAPI], [1], [Use the PAPI library])
  fi
fi
291
AC_LANG_POP([C])
292

293
294
295
save_FCFLAGS=$FCFLAGS
save_LDFLAGS=$LDFLAGS

296
297
298
AC_ARG_VAR([SCALAPACK_LDFLAGS],[Extra LDFLAGS necessary to link a program with Scalapack])
AC_ARG_VAR([SCALAPACK_FCFLAGS],[Extra FCFLAGS necessary to compile a Fortran program with Scalapack])

299
300
FCFLAGS="$FCFLAGS $SCALAPACK_FCFLAGS"
LDFLAGS="$LDFLAGS $SCALAPACK_LDFLAGS"
301

302
dnl check whether fortran error_unit is defined
303
AC_MSG_CHECKING([whether Fortran module iso_fortran_env is available])
304
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
305
  program test_error_unit
306
    use iso_fortran_env, only : error_unit
307
308
309
310
311
312
313
314
    implicit none

    write(error_unit,*) "error_unit is defined"
  end program
])],
  [can_use_iso_fortran_env=yes],
  [can_use_iso_fortran_env=no]
)
315
AC_MSG_RESULT([${can_use_iso_fortran_env}])
316
317
318
319
if test x"${can_use_iso_fortran_env}" = x"yes" ; then
 AC_DEFINE([HAVE_ISO_FORTRAN_ENV],[1],[can use module iso_fortran_env])
fi

320

321
322
dnl check whether one can link with specified MKL (desired method)
AC_MSG_CHECKING([whether we can compile a Fortran program using MKL])
323
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
324
  program test_mkl
325
    use mkl_service
326
327
328
329
330
331
332
333
334
335
336
337
    character*198 :: string
    call mkl_get_version_string(string)
    write(*,'(a)') string
  end program
])],
  [can_compile_with_mkl=yes],
  [can_compile_with_mkl=no]
)
AC_MSG_RESULT([${can_compile_with_mkl}])

if test x"$can_compile_with_mkl" = x"yes" ; then
  AC_MSG_CHECKING([whether we can link a Fortran program with MKL])
338
  AC_LINK_IFELSE([AC_LANG_SOURCE([
339
    program test_mkl
340
      use mkl_service
341
342
343
344
345
      character*198 :: string
      call mkl_get_version_string(string)
      write(*,'(a)') string
    end program
  ])],
Andreas Marek's avatar
Andreas Marek committed
346
347
    [have_mkl=yes],
    [have_mkl=no]
348
  )
Andreas Marek's avatar
Andreas Marek committed
349
  AC_MSG_RESULT([${have_mkl}])
350
351
352
fi

dnl if not mkl, check all the necessary individually
353
if test x"${have_mkl}" = x"yes" ; then
354
355
356
357
  WITH_MKL=1
else

  dnl first check blas
358
  AC_SEARCH_LIBS([dgemm],[openblas satlas blas],[have_blas=yes],[have_blas=no])
Andreas Marek's avatar
Andreas Marek committed
359
360
  AC_MSG_CHECKING([whether we can link a program with a blas lib])
  AC_MSG_RESULT([${have_blas}])
361

362
  if test x"${have_blas}" = x"no" ; then
363
    AC_MSG_ERROR([could not link with blas: specify path])
364
  fi
365
  dnl now lapack
Andreas Marek's avatar
Andreas Marek committed
366
367
368
  AC_SEARCH_LIBS([dlarrv],[lapack],[have_lapack=yes],[have_lapack=no])
  AC_MSG_CHECKING([whether we can link a program with a lapack lib])
  AC_MSG_RESULT([${have_lapack}])
369

370
  if test x"${have_lapack}" = x"no" ; then
371
    AC_MSG_ERROR([could not link with lapack: specify path])
372
  fi
Andreas Marek's avatar
Andreas Marek committed
373

374
  if test x"${with_mpi}" = x"yes"; then
375
    dnl test whether scalapack already contains blacs
376
    scalapack_libs="mpiscalapack scalapack scalapack-openmpi"
377
378
379
380
381
    old_LIBS="$LIBS"
    for lib in ${scalapack_libs}; do
      LIBS="-l${lib} ${old_LIBS}"
      AC_MSG_CHECKING([whether -l${lib} already contains a BLACS implementation])
      AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([blacs_gridinit])],[blacs_in_scalapack=yes],[blacs_in_scalapack=no])
Andreas Marek's avatar
Andreas Marek committed
382
	       
383
384
385
386
387
      AC_MSG_RESULT([${blacs_in_scalapack}])
      if test x"${blacs_in_scalapack}" = x"yes"; then
        break
      fi
    done
388

389
390
    if test x"${blacs_in_scalapack}" = x"no"; then
      LIBS="${old_LIBS}"
391

392
393
      dnl Test for stand-alone blacs
      AC_SEARCH_LIBS([bi_f77_init],[mpiblacsF77init],[],[],[-lmpiblacs])
394
395
396
397
398
399

      dnl for debian
      AC_SEARCH_LIBS([blacs_gridinit],[blacs-openmpi],[have_blacs=yes],[have_blacs=no],[-lblacsCinit-openmpi -lscalapack-openmpi])
      if test x"${have_blacs}" = x"no"; then
        unset ac_cv_search_blacs_gridinit
      fi
400
      AC_SEARCH_LIBS([blacs_gridinit],[mpiblacs blacs],[have_blacs=yes],[have_blacs=no])
Andreas Marek's avatar
Andreas Marek committed
401

402
403
404
      if test x"${have_blacs}" = x"no"; then
        AC_MSG_ERROR([No usable BLACS found. If installed in a non-standard place, please specify suitable LDFLAGS and FCFLAGS as arguments to configure])
      fi
405
    fi
406

407
    AC_SEARCH_LIBS([pdtran],[$scalapack_libs],[have_scalapack=yes],[have_scalapack=no])
Andreas Marek's avatar
Andreas Marek committed
408

409
410
411
    if test x"${have_scalapack}" = x"no" ; then
      AC_MSG_ERROR([could not link with scalapack: specify path])
    fi
412
413
414
415
  fi

  dnl check whether we can link alltogehter
  AC_MSG_CHECKING([whether we can link a Fortran program with all blacs/scalapack])
416
  AC_LINK_IFELSE([AC_LANG_SOURCE([
417
418
    program dgemm_test

419
420
      integer , parameter:: M = 4, N = 3, K = 2
      real :: A(M,K), B(K,N), C(M,N)
421

422
      call dgemm('N','N',M,N,K,1.0,A,M,B,K,0.0,C,M)
423
424
425
426
427
428
429
430

     end program dgemm_test
     ])],
     [can_link_with_blacs_scalapack=yes],
     [can_link_with_blacs_scalapack=no]
   )
   AC_MSG_RESULT([${can_link_with_blacs_scalapack}])

431
   if test x"${can_link_with_blacs_scalapack}" = x"yes" ; then
432
433
     WITH_BLACS=1
   else
434
   AC_MSG_ERROR([We can neither link with MKL or another Scalpack. Please specify SCALAPACK_LDFLAGS and SCALAPACK_FCFLAGS!])
435
436
437
   fi
fi

438
439
440
441
dnl important: reset them again!
FCFLAGS=$save_FCFLAGS
LDFLAGS=$save_LDFLAGS

442

Andreas Marek's avatar
Andreas Marek committed
443
444
445
446
dnl check for intrinsic fortran function of 2003 standard
AC_MSG_CHECKING([whether we can use the intrinsic Fortran function "get_environment_variable"])


447
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
Andreas Marek's avatar
Andreas Marek committed
448
449
450
451
452
453
454
455
456
  program test_get_environment
    character(len=256) :: homedir
    call get_environment_variable("HOME",homedir)
  end program
])],
  [fortran_can_check_environment=yes],
  [fortran_can_check_environment=no]
)
AC_MSG_RESULT([${fortran_can_check_environment}])
457
458
459
if test x"${fortran_can_check_environment}" = x"yes" ; then
 AC_DEFINE([HAVE_ENVIRONMENT_CHECKING],[1],[Fortran can query environment variables])
fi
Andreas Marek's avatar
Andreas Marek committed
460

461

462
463
dnl check whether BAND_TO_FULL_BLOCKING is set
AC_MSG_CHECKING(whether BAND_TO_FLULL_BLOCKING is requested)
464
AC_ARG_ENABLE(band-to-full-blocking,[AS_HELP_STRING([--disable-band-to-full-blocking],
465
                                                    [build ELPA2 with blocking in band_to_full (default: enabled)])],
Andreas Marek's avatar
Andreas Marek committed
466
467
468
469
470
471
472
              [
               if test x"$enableval" = x"yes"; then
                 enable_band_to_full_blocking=yes
               else
                 enable_band_to_full_blocking=no
               fi
	       ],
473
474
	      [enable_band_to_full_blocking="yes"])
AC_MSG_RESULT([${enable_band_to_full_blocking}])
475

476
477
AM_CONDITIONAL([BAND_TO_FULL_BLOCKING],[test x"$enable_band_to_full_blocking" = x"yes"])
if test x"${enable_band_to_full_blocking}" = x"yes"; then
478
       AC_DEFINE([BAND_TO_FULL_BLOCKING], [1], [use blocking in trans_ev_band_to_full])
479
480
fi

481
482
483
484
485
486
487

AC_ARG_WITH([cuda-path],[AS_HELP_STRING([--with-cuda-path=PATH],[prefix where CUDA is installed @<:@default=auto@:>@])],
            [CUDA_INSTALL_PATH=$withval], [with_cuda=auto])

AC_ARG_WITH([cuda-sdk-path],[AS_HELP_STRING([--with-cuda-sdk-path=PATH],[prefix where CUDA SDK is installed @<:@default=auto@:>@])],
            [CUDA_SDK_INSTALL_PATH=$withval],[with_cuda_sdk=auto])

488

489
dnl setup nvcc flags and use them in later tests
490
491
492
user_sets_gpu_compute_capability="no"
AC_MSG_CHECKING(whether a GPU compute capability is specified)
AC_ARG_WITH([GPU-compute-capability],
493
494
495
            [AS_HELP_STRING([--with-GPU-compute-capability=VALUE],
                            [use compute capability VALUE for GPU version, default: "sm_35"])],
            [user_sets_gpu_compute_capability="yes"],[cuda_compute_capability="sm_35"])
496
497
AC_MSG_RESULT([${user_sets_gpu_compute_capability}])

498

499
500
501
502
503
504
505
506
507
508
509
dnl sanity check whether compute capability setting by user is reasonable
if test x"${user_sets_gpu_compute_capability}" = x"yes" ; then
  dnl the user must set a value which starts with "sm_"
  value=$(echo $withval | cut -c1-3)
  if test x"${value}" = x"sm_" ; then
    cuda_compute_capability=$withval
  else
    AC_MSG_ERROR([Unknown GPU compute capability set: ${withval}])
  fi
fi

Andreas Marek's avatar
Andreas Marek committed
510

511
512
dnl Test possibility of 'use mpi', if requested
if test x"${with_mpi}" = x"yes" ; then
513
514
  AC_ARG_ENABLE([mpi-module],
                AS_HELP_STRING([--disable-mpi-module],
515
                               [do not use the Fortran MPI module, get interfaces by 'include "mpif.h')]),
Andreas Marek's avatar
Andreas Marek committed
516
517
518
519
520
521
522
                [
                 if test x"$enableval" = x"yes"; then
                   enable_mpi_module=yes
                 else
                   enable_mpi_module=no
                 fi
		 ],
523
524
                [enable_mpi_module=yes])
  if test x"${enable_mpi_module}" = x"yes" ; then
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
    AC_MSG_CHECKING(whether Fortran mpi module can be used)
    AC_COMPILE_IFELSE([AC_LANG_SOURCE([
      program test_mpi_module
        use mpi
        real :: time
        time = MPI_WTime()
      end program
    ])],
      [can_use_fortran_mpi_module=yes],
      [can_use_fortran_mpi_module=no]
    )
    AC_MSG_RESULT([${can_use_fortran_mpi_module}])
    if test x"${can_use_fortran_mpi_module}" = x"yes" ; then
      AC_DEFINE([HAVE_MPI_MODULE],[1],[can use the Fortran mpi module])
    else
540
      AC_MSG_ERROR([Could not compile a Fortran program with an 'use mpi' statement. You can try again with --disable-mpi-module])
541
    fi
542
  fi
Andreas Marek's avatar
Andreas Marek committed
543
fi
544
AC_LANG_POP([Fortran])
Andreas Marek's avatar
Andreas Marek committed
545

546
547
dnl Assemble the list of kernels to build
m4_pattern_forbid([elpa_m4])
Andreas Marek's avatar
Andreas Marek committed
548

549
550
551
m4_define(elpa_m4_generic_kernels, [
        real_generic
        real_generic_simple
Andreas Marek's avatar
Andreas Marek committed
552
        real_generic_simple_block4
Andreas Marek's avatar
Andreas Marek committed
553
        real_generic_simple_block6
554
555
556
        complex_generic
        complex_generic_simple
])
557

558
559
560
561
m4_define(elpa_m4_sse_assembly_kernels, [
        real_sse_assembly
        complex_sse_assembly
])
562

563
564
565
566
567
568
569
m4_define(elpa_m4_sse_kernels, [
        real_sse_block2
        real_sse_block4
        real_sse_block6
        complex_sse_block1
        complex_sse_block2
])
570

571
572
573
574
575
576
m4_define(elpa_m4_sparc64_kernels, [
        real_sparc64_block2
        real_sparc64_block4
        real_sparc64_block6
])

577
578
579
580
581
582
m4_define(elpa_m4_vsx_kernels, [
        real_vsx_block2
        real_vsx_block4
        real_vsx_block6
])

583
584
585
586
587
588
589
m4_define(elpa_m4_avx_kernels, [
        real_avx_block2
        real_avx_block4
        real_avx_block6
        complex_avx_block1
        complex_avx_block2
])
Andreas Marek's avatar
Andreas Marek committed
590

591
592
593
594
595
596
597
m4_define(elpa_m4_avx2_kernels, [
        real_avx2_block2
        real_avx2_block4
        real_avx2_block6
        complex_avx2_block1
        complex_avx2_block2
])
Andreas Marek's avatar
Andreas Marek committed
598

599
600
601
602
603
604
605
m4_define(elpa_m4_avx512_kernels, [
        real_avx512_block2
        real_avx512_block4
        real_avx512_block6
        complex_avx512_block1
        complex_avx512_block2
])
Andreas Marek's avatar
Andreas Marek committed
606

607
608
609
610
m4_define(elpa_m4_bgp_kernels, [
        real_bgp
        complex_bgp
])
Andreas Marek's avatar
Andreas Marek committed
611

612
613
614
615
m4_define(elpa_m4_bgq_kernels, [
        real_bgq
        complex_bgq
])
Andreas Marek's avatar
Andreas Marek committed
616

617
m4_define(elpa_m4_gpu_kernels, [
618
619
        real_gpu
        complex_gpu
620
])
621

622
m4_define(elpa_m4_kernel_types, [generic sparc64 vsx sse sse_assembly avx avx2 avx512 bgp bgq gpu])
623

624
625
626
627
m4_define(elpa_m4_all_kernels,
          m4_foreach_w([elpa_m4_type],
                       elpa_m4_kernel_types,
                       [m4_foreach_w([elpa_m4_kernel],[elpa_m4_]elpa_m4_type[_kernels],elpa_m4_kernel )]))
Andreas Marek's avatar
Andreas Marek committed
628

629
630
631
632
m4_define(elpa_m4_real_kernels,
          m4_foreach_w(elpa_m4_kernel,
                       elpa_m4_all_kernels,
                       [m4_bmatch(elpa_m4_kernel,real,elpa_m4_kernel) ]))
Andreas Marek's avatar
Andreas Marek committed
633

634
635
636
637
m4_define(elpa_m4_complex_kernels,
          m4_foreach_w(elpa_m4_kernel,
                       elpa_m4_all_kernels,
                       [m4_bmatch(elpa_m4_kernel,complex,elpa_m4_kernel) ]))
638

639
640
641
642
643
644
645
646
647
648
649
650
651
dnl
dnl ELPA_SELECT_KERNELS([flagname],[default])
dnl
dnl  default should be one of `enable' or `disable'
dnl
AC_DEFUN([ELPA_SELECT_KERNELS], [
        AC_ARG_ENABLE(m4_bpatsubst($1,[_],[-]),[AS_HELP_STRING([--]m4_case([$2],[enable],[disable],[disable],[enable])[-]m4_bpatsubst($1,[_],[-]),
                m4_case([$2],[enable],[do not build],[disable],[build])[ ]m4_toupper($1)[ kernels, default: $2d])],
                      [],[enable_$1=]m4_case([$2],[enable],[yes],[disable],[no]))
        m4_foreach_w(elpa_m4_kernel,elpa_m4_$1_kernels,[
                use_[]elpa_m4_kernel[=$enable_$1]
        ])
])
652

653
654
dnl Modify list of kernels with configure arguments
ELPA_SELECT_KERNELS([generic],[enable])
655
ELPA_SELECT_KERNELS([sparc64],[disable])
656
ELPA_SELECT_KERNELS([vsx],[disable])
657
658
659
660
661
662
663
664
665
666
667
668
ELPA_SELECT_KERNELS([sse],[enable])
ELPA_SELECT_KERNELS([sse_assembly],[enable])
ELPA_SELECT_KERNELS([avx],[enable])
ELPA_SELECT_KERNELS([avx2],[enable])
ELPA_SELECT_KERNELS([avx512],[disable])
ELPA_SELECT_KERNELS([gpu],[disable])
ELPA_SELECT_KERNELS([bgp],[disable])
ELPA_SELECT_KERNELS([bgq],[disable])

m4_foreach_w([elpa_m4_kind],[real complex],[
        default_[]elpa_m4_kind[]_kernel=""
])
669

670
if test x"${enable_bgp}" = x"yes" -o x"$enable_bgq" = x"yes"; then
671
        m4_foreach_w([elpa_m4_kernel], elpa_m4_sparc64_kernels elpa_m4_vsx_kernels elpa_m4_sse_kernels elpa_m4_avx_kernels elpa_m4_avx2_kernels elpa_m4_avx512_kernels, [
672
673
674
675
676
677
678
679
680
681
682
683
                if x"$use_[]elpa_m4_kernel[]" = x"yes" ; then
                        echo "Disabling elpa_m4_kernel due to BGP/BGQ option"
                fi
                use_[]elpa_m4_kernel[]=no
        ])
fi


dnl Deal with --with-fixed-[real|complex]-kernel arguments
m4_foreach_w([elpa_m4_kind],[real complex],[
        AC_ARG_WITH([fixed-]elpa_m4_kind[-kernel], m4_expand([AS_HELP_STRING([--with-fixed-]elpa_m4_kind[-kernel]=KERNEL,
                [compile with only a single specific ]elpa_m4_kind[ kernel. Available kernels are:]
684
685
                 m4_foreach_w([elpa_m4_kernel],m4_expand(elpa_m4_[]elpa_m4_kind[]_kernels),[m4_bpatsubst(elpa_m4_kernel,elpa_m4_kind[]_,[]) ]))]),
                 [fixed_]elpa_m4_kind[_kernel="]elpa_m4_kind[_$withval"],[fixed_]elpa_m4_kind[_kernel=""])
686
        if test -n "$fixed_[]elpa_m4_kind[]_kernel" ; then
687
                found="no"
688
689
690
                m4_foreach_w([elpa_m4_otherkernel],m4_expand(elpa_m4_[]elpa_m4_kind[]_kernels),[
                        if test "$fixed_]elpa_m4_kind[_kernel" = "]elpa_m4_otherkernel[" ; then
                                use_[]elpa_m4_otherkernel[]=yes
691
                                found="yes"
692
693
694
695
                        else
                                use_[]elpa_m4_otherkernel[]=no
                        fi
                ])
696
697
698
                if test x"$found" = x"no" ; then
                        AC_MSG_ERROR([Invalid kernel "$fixed_]elpa_m4_kind[_kernel" specified for --with-fixed-]elpa_m4_kind[-kernel])
                fi
699
700
701
702
                default_[]elpa_m4_kind[]_kernel="$fixed_[]elpa_m4_kind[]_kernel"
                AC_DEFINE([WITH_FIXED_]m4_toupper(elpa_m4_kind)[_KERNEL],[1],[use only one specific ]elpa_m4_kind[ kernel (set at compile time)])
        fi
])
703

704
705
706
707
708
709
710
AC_ARG_WITH(gpu-support-only, [AS_HELP_STRING([--with-gpu-support-only],
            [Compile and always use the GPU version])],
            [],[with_gpu_support_only=no])
if test x"$with_gpu_support_only" = x"yes" ; then
        m4_foreach_w([elpa_m4_kernel],elpa_m4_all_kernels,[
                      use_[]elpa_m4_kernel[]=no
        ])
711
712
        use_real_gpu=yes
        use_complex_gpu=yes
713
fi
714

715

716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
dnl
dnl  ELPA_KERNEL_DEPENDS([kernel],[other kernels])
dnl
dnl   Switch on each of the other kernels if the given kernel is selected
dnl
AC_DEFUN([ELPA_KERNEL_DEPENDS],[
          if test x"$use_$1" = x"yes"; then
                  m4_foreach_w([elpa_m4_requiredkernel],[$2],[
                               if test x"$use_[]elpa_m4_requiredkernel[]" = x"no" ; then
                                       echo "Enabling elpa_m4_requiredkernel kernel, is a prerequisite for $1"
                               fi
                               use_[]elpa_m4_requiredkernel[]=yes
                  ])
          fi
])
731
m4_foreach_w([elpa_m4_arch],[sparc64 vsx sse avx avx2 avx512],[
732
733
734
735
        ELPA_KERNEL_DEPENDS([real_]elpa_m4_arch[_block6], [real_]elpa_m4_arch[_block4 real_]elpa_m4_arch[_block2])
        ELPA_KERNEL_DEPENDS([real_]elpa_m4_arch[_block4], [real_]elpa_m4_arch[_block2])
        ELPA_KERNEL_DEPENDS([complex_]elpa_m4_arch[_block2], [complex_]elpa_m4_arch[_block1])
])
736

737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
m4_foreach_w([elpa_m4_type],elpa_m4_kernel_types,[
        need_[]elpa_m4_type=no
        need_[]elpa_m4_type[]_kernels=""
        m4_foreach_w([elpa_m4_kernel],m4_expand([elpa_m4_]elpa_m4_type[_kernels]),[
                if test x"$use_[]elpa_m4_kernel" = x"yes" ; then
                        need_[]elpa_m4_type=yes
                        need_[]elpa_m4_type[]_kernels="$need_[]elpa_m4_type[]_kernels elpa_m4_kernel"
                fi
        ])
])
m4_foreach_w([elpa_m4_type],elpa_m4_kernel_types,[
        if test x"$need_[]elpa_m4_type[]" = x"yes" ; then
               echo "Using m4_toupper(elpa_m4_type) for kernels$need_[]elpa_m4_type[]_kernels"
        fi
])
m4_foreach_w([elpa_m4_type],elpa_m4_kernel_types,[
        if test x"$need_[]elpa_m4_type[]" != x"yes" ; then
               echo "Not using m4_toupper(elpa_m4_type) as no selected kernel needs it"
        fi
])
757

758

759
760
761
dnl the list of kernels is now assembled
dnl choosing a default kernel

762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
m4_foreach_w([elpa_m4_kind],[real complex],[
        AC_ARG_WITH([default-]elpa_m4_kind[-kernel], m4_expand([AS_HELP_STRING([--with-default-]elpa_m4_kind[-kernel]=KERNEL,
                [set a specific ]elpa_m4_kind[ kernel as default kernel. Available kernels are:]
                 m4_foreach_w([elpa_m4_kernel],m4_expand(elpa_m4_[]elpa_m4_kind[]_kernels),[m4_bpatsubst(elpa_m4_kernel,elpa_m4_kind[]_,[]) ]))]),
                 [default_]elpa_m4_kind[_kernel="]elpa_m4_kind[_$withval"],[default_]elpa_m4_kind[_kernel=""])
        #if test -n "$default_[]elpa_m4_kind[]_kernel" ; then
        #        found="no"
        #        m4_foreach_w([elpa_m4_otherkernel],m4_expand(elpa_m4_[]elpa_m4_kind[]_kernels),[
        #                if test "$default_]elpa_m4_kind[_kernel" = "]elpa_m4_otherkernel[" ; then
        #                        use_[]elpa_m4_otherkernel[]=yes
        #                        found="yes"
        #                else
        #                        use_[]elpa_m4_otherkernel[]=no
        #                fi
        #        ])
        #        if test x"$found" = x"no" ; then
        #                AC_MSG_ERROR([Invalid kernel "$default_]elpa_m4_kind[_kernel" specified for --with-default-]elpa_m4_kind[-kernel])
        #        fi
        #        AC_DEFINE([WITH_DEFAULT_]m4_toupper(elpa_m4_kind)[_KERNEL],[1],[use specific ]elpa_m4_kind[ default kernel (set at compile time)])
        #fi
])



786
787
788
m4_foreach_w([elpa_m4_kind],[real complex],[
        m4_foreach_w([elpa_m4_kernel],
                     m4_foreach_w([elpa_m4_cand_kernel],
789
                                  elpa_m4_avx512_kernels elpa_m4_avx2_kernels elpa_m4_avx_kernels elpa_m4_sse_kernels elpa_m4_sse_assembly_kernels elpa_m4_sparc64_kernels elpa_m4_vsx_kernels elpa_m4_generic_kernels,
790
791
792
793
794
795
796
797
798
799
800
801
802
                                  [m4_bmatch(elpa_m4_cand_kernel,elpa_m4_kind,elpa_m4_cand_kernel)] ),
                     [
                     if test -z "$default_[]elpa_m4_kind[]_kernel"; then
                             if test x"$use_[]elpa_m4_kernel" = x"yes"; then
                                     default_[]elpa_m4_kind[]_kernel="elpa_m4_kernel"
                             fi
                     fi
                     ])
        if test -z "$default_[]elpa_m4_kind[]_kernel"; then
                AC_MSG_ERROR([Internal error, could not determine a default kernel])
        fi
        # find the number of this kernel
        ELPA_2STAGE_[]m4_toupper(elpa_m4_kind)[]_DEFAULT=`grep -i '^ *X(ELPA_2STAGE_'$default_[]elpa_m4_kind[]_kernel'\>' $srcdir/elpa/elpa_constants.h.in | \
803
                                                                perl -pe 's/^[[^,]]*, *//; s/,.*//;'`
804
805
        AC_SUBST([ELPA_2STAGE_]m4_toupper(elpa_m4_kind)[_DEFAULT])
])
Andreas Marek's avatar
Andreas Marek committed
806

807
808
809
810
811
812
813
dnl #include <fjmfunc.h>
dnl #include <emmintrin.h>
dnl int main(int argc, char **argv) {
dnl   __m128d q;
dnl   __m128d h1 = _fjsp_neg_v2r8(q);
dnl   return 0;
dnl }
814
AC_LANG_PUSH([C])
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836

if test x"${need_vsx}" = x"yes"; then
  AC_MSG_CHECKING(whether we can compile Altivec VSX with intrinsics in C)
  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#include <altivec.h>
int main(int argc, char **argv) {
  __vector double a, b, c;
  c = vec_add(a,b);
  return 0;
}
    ])],
    [can_compile_vsx=yes],
    [can_compile_vsx=no]
  )
  AC_MSG_RESULT([${can_compile_vsx}])
  if test x"$can_compile_vsx" != x"yes"; then
    AC_MSG_ERROR([Could not compile test program, try with --disable-vsx, or adjust the C compiler or CFLAGS])
  fi
  AC_DEFINE([HAVE_VSX_SSE],[1],[Altivec VSX intrinsics are supported on this CPU])
fi


837
838
839
if test x"${need_sparc64}" = x"yes"; then
  AC_MSG_CHECKING(whether we can compile SPARC64 with intrinsics in C)
  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
Andreas Marek's avatar
Andreas Marek committed
840
841
#include <fjmfunc.h>
#include <emmintrin.h>
842
int main(int argc, char **argv) {
Andreas Marek's avatar
Andreas Marek committed
843
844
  __m128d  tau1;
  __m128d h1 = _fjsp_neg_v2r8(tau1);
845
846
847
848
849
850
851
852
853
854
855
856
  return 0;
}
    ])],
    [can_compile_sparc64=yes],
    [can_compile_sparc64=no]
  )
  AC_MSG_RESULT([${can_compile_sparc64}])
  if test x"$can_compile_sparc64" != x"yes"; then
    AC_MSG_ERROR([Could not compile test program, try with --disable-sparc64, or adjust the C compiler or CFLAGS])
  fi
  AC_DEFINE([HAVE_SPARC64_SSE],[1],[SPARC64 intrinsics are supported on this CPU])
fi
Andreas Marek's avatar
Andreas Marek committed
857

858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
if test x"${need_sse}" = x"yes"; then
  AC_MSG_CHECKING(whether we can compile SSE3 with gcc intrinsics in C)
  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#include <x86intrin.h>
int main(int argc, char **argv) {
  double* q;
  __m128d h1 = _mm_loaddup_pd(q);
  return 0;
}
    ])],
    [can_compile_sse=yes],
    [can_compile_sse=no]
  )
  AC_MSG_RESULT([${can_compile_sse}])
  if test x"$can_compile_sse" != x"yes"; then
    AC_MSG_ERROR([Could not compile test program, try with --disable-sse, or adjust the C compiler or CFLAGS])
  fi
  AC_DEFINE([HAVE_SSE_INTRINSICS],[1],[gcc intrinsics SSE is supported on this CPU])
Andreas Marek's avatar
Andreas Marek committed
876
877
878
fi


879
880
if test x"${need_sse_assembly}" = x"yes"; then
  AC_MSG_CHECKING(whether double-precision SSE assembly kernels can be compiled)
Andreas Marek's avatar
Andreas Marek committed
881

Andreas Marek's avatar
Andreas Marek committed
882
  $CC $CFLAGS -c $srcdir/src/elpa2/kernels/asm_x86_64_double_precision.s -o conftest.o 2>&5
Andreas Marek's avatar
Andreas Marek committed
883

884
885
886
887
888
889
890
891
892
893
  if test "$?" == 0; then
    can_compile_sse_asm_double=yes
  else
    can_compile_sse_asm_double=no
  fi
  rm -f ./conftest.o
  AC_MSG_RESULT([${can_compile_sse_asm_double}])
  if test x"$can_compile_sse_asm_double" != x"yes"; then
    AC_MSG_ERROR([Could not compile test program, try with --disable-sse-assembly, or adjust the C compiler or CFLAGS])
  fi
894

895
896
  if test x"${want_single_precision}" = x"yes" ; then
    AC_MSG_CHECKING(whether single-precision SSE assembly kernels can be compiled)
897

Andreas Marek's avatar
Andreas Marek committed
898
    $CC $CFLAGS -c $srcdir/src/elpa2/kernels/asm_x86_64_single_precision.s -o conftest.o 2>&5
899

900
901
902
903
904
905
906
907
908
909
910
    if test "$?" == 0; then
      can_compile_sse_asm_single=yes
    else
      can_compile_sse_asm_single=no
    fi
    rm -f ./conftest.o
    AC_MSG_RESULT([${can_compile_sse_asm_single}])
    if test x"$can_compile_sse_asm_single" != x"yes"; then
      AC_MSG_ERROR([Could not compile test program, try with --disable-sse-assembly, or adjust the C compiler or CFLAGS])
    fi
  fi
Andreas Marek's avatar
Andreas Marek committed
911
912
913
914
fi



915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
if test x"${need_avx}" = x"yes"; then
  dnl check whether one can compile AVX gcc intrinsics
  AC_MSG_CHECKING([whether we can compile AVX gcc intrinsics in C])
  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
   #include <x86intrin.h>
   int main(int argc, char **argv){
   double* q;
   __m256d a1_1 = _mm256_load_pd(q);
   return 0;
   }
   ])],
   [can_compile_avx=yes],
   [can_compile_avx=no]
  )
  AC_MSG_RESULT([${can_compile_avx}])
  if test x"$can_compile_avx" != x"yes"; then
    AC_MSG_ERROR([Could not compile a test program with AVX, try with --disable-avx, or adjust the C compiler or CFLAGS])
  fi
  AC_DEFINE([HAVE_AVX],[1],[AVX is supported on this CPU])
934
935
936
fi


937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
if test x"${need_avx2}" = x"yes"; then
  AC_MSG_CHECKING([whether we can compile AVX2 gcc intrinsics in C])
  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
   #include <x86intrin.h>
   int main(int argc, char **argv){
   double* q;
   __m256d q1 = _mm256_load_pd(q);
   __m256d y1 = _mm256_fmadd_pd(q1, q1, q1);
   return 0;
   }
   ])],
   [can_compile_avx2=yes],
   [can_compile_avx2=no]
  )
  AC_MSG_RESULT([${can_compile_avx2}])
  if test x"$can_compile_avx2" != x"yes"; then
    AC_MSG_ERROR([Could not compile a test program with AVX2, try with --disable-avx2, or adjust the C compiler or CFLAGS])
  fi
  AC_DEFINE([HAVE_AVX2],[1],[AVX2 is supported on this CPU])
956
957
fi

958

959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
if test x"${need_avx512}" = x"yes"; then
  AC_MSG_CHECKING([whether we can compile AVX512 gcc intrinsics in C])
  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
   #include <x86intrin.h>
   int main(int argc, char **argv){
   double* q;
   __m512d q1 = _mm512_load_pd(q);
   __m512d y1 = _mm512_fmadd_pd(q1, q1, q1);
   return 0;
   }
   ])],
   [can_compile_avx512=yes],
   [can_compile_avx512=no]
  )
  AC_MSG_RESULT([${can_compile_avx512}])
  if test x"$can_compile_avx512" != x"yes"; then
    AC_MSG_ERROR([Could not compile a test program with AVX512, adjust the C compiler or CFLAGS])
  fi
  AC_DEFINE([HAVE_AVX512],[1],[AVX512 is supported on this CPU])
Andreas Marek's avatar
Andreas Marek committed
978
979

  if test x"$can_compile_avx512" = x"yes"; then
980
    AC_MSG_CHECKING([whether we compile for Xeon])
Andreas Marek's avatar
Andreas Marek committed
981
    AC_RUN_IFELSE([AC_LANG_SOURCE([
Andreas Marek's avatar
Andreas Marek committed
982
983
984
     #include <x86intrin.h>
     int main(int argc, char **argv){
     __m512d sign;
985
     __m512d h1_real;
Andreas Marek's avatar
Andreas Marek committed
986
987
988
989
990
991
992
993

     __m512d x1 = _mm512_xor_pd(h1_real, sign);
     return 0;
     }
     ])],
     [can_compile_avx512_xeon=yes],
     [can_compile_avx512_xeon=no]
    )
994
995
996
    AC_MSG_RESULT([${can_compile_avx512_xeon}])

    AC_MSG_CHECKING([whether we compile for Xeon PHI])
Andreas Marek's avatar
Andreas Marek committed
997
    AC_RUN_IFELSE([AC_LANG_SOURCE([
Andreas Marek's avatar
Andreas Marek committed
998
999
1000
1001
     #include <x86intrin.h>
     int main(int argc, char **argv){
     __m512d sign;
     __m512d h1;
Andreas Marek's avatar
Andreas Marek committed
1002
     __m512d h2_real;
Andreas Marek's avatar
Andreas Marek committed
1003

1004
     __m512d x1 = (__m512d) _mm512_xor_epi64((__m512i) h2_real, (__m512i) sign);
Andreas Marek's avatar
Andreas Marek committed
1005
1006
1007
1008
1009
1010
     return 0;
     }
     ])],
     [can_compile_avx512_xeon_phi=yes],
     [can_compile_avx512_xeon_phi=no]
    )
1011
1012
    AC_MSG_RESULT([${can_compile_avx512_xeon_phi}])

1013
1014
1015
1016
1017
1018
    # this is needed for the intel compiler
    if test x"$can_compile_avx512_xeon" = x"yes" ; then
      if test x"$can_compile_avx512_xeon_phi" = x"yes" ; then
        # we want only one to be true; this is ugly but could not come up with a better way
        grep Phi /proc/cpuinfo > /dev/null
        if test x"$?" = x"0" ; then
1019
	  echo "Xeon PHI found ... disabling AVX512 Xeon"
1020
1021
1022
1023
1024
          can_compile_avx512_xeon=no
        fi
      fi
    fi

Andreas Marek's avatar
Andreas Marek committed
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
    if test x"$can_compile_avx512_xeon" = x"yes"; then
      AC_DEFINE([HAVE_AVX512_XEON],[1],[AVX512 for Xeon is supported on this CPU])
    else
      if test x"$can_compile_avx512_xeon_phi" = x"yes"; then
        AC_DEFINE([HAVE_AVX512_XEON_PHI],[1],[AVX512 for Xeon-PHI is supported on this CPU])
      else
        AC_MSG_ERROR([Oho! We can neither compile AVX512 intrinsics for Xeon nor Xeon Phi. This should not happen!])
      fi
    fi
  fi
1035
fi
1036
AC_LANG_POP([C])
1037
1038


1039
1040
1041
1042
1043
1044
1045
AC_LANG_PUSH([Fortran])
if test x"${need_bgp}" = x"yes"; then
  AC_MSG_CHECKING([whether we can compile with BGP intrinsics])
  AC_LINK_IFELSE([AC_LANG_SOURCE([
    program test_bgp
      complex*16 :: y3,q3,h2
      y3 = fxcpmadd(y3,q3,h2)
1046

1047
1048
1049
1050
1051
1052
1053
1054
1055
    end program
  ])],
    [can_compile_bgp=yes],
    [can_compile_bgp=no]
  )
  AC_MSG_RESULT([${can_compile_bgp}])
  if test x"$can_compile_bgp" != x"yes"; then
    AC_MSG_ERROR([Could not compile a test program with BGP intrinsics, adjust the FC compiler or FCFLAGS])
  fi
1056
1057
fi

Andreas Marek's avatar
Andreas Marek committed
1058

1059
1060
1061
1062
1063
1064
1065
if test x"${need_bgq}" = x"yes"; then
  AC_MSG_CHECKING([whether we can compile with BGQ intrinsics])
  AC_LINK_IFELSE([AC_LANG_SOURCE([
    program test_bgq
      VECTOR(REAL(8))::QPX_h2
      real*8         :: hh(10,2)
      QPX_h2 = VEC_SPLATS(hh(2,2))
Andreas Marek's avatar
Andreas Marek committed
1066

1067
1068
1069
1070
1071
1072
1073
1074
1075
    end program
  ])],
    [can_compile_bgq=yes],
    [can_compile_bgq=no]
  )
  AC_MSG_RESULT([${can_compile_bgq}])
  if test x"$can_compile_bgq" != x"yes"; then
    AC_MSG_ERROR([Could not compile a test program with BGQ intrinsics, adjust the FC compiler or FCFLAGS])
  fi
1076
fi
1077
AC_LANG_POP([Fortran])
1078

1079
1080
1081
1082
1083
1084
1085
1086
if test x"${need_gpu}" = x"yes" ; then
  AC_LANG_PUSH([C])
  CUDA_CFLAGS="$CUDA_CFLAGS -arch $cuda_compute_capability -O2 -I$CUDA_INSTALL_PATH/include"
  LDFLAGS="$LDFLAGS -L$CUDA_INSTALL_PATH/lib64"
  NVCCFLAGS="$NVCCFLAGS $CUDA_CFLAGS $CUDA_LDFLAGS"
  NVCC="nvcc"
  AC_SUBST(NVCC)
  AC_SUBST(NVCCFLAGS)
1087

1088
1089
1090
1091
1092
  dnl check whether nvcc compiler is found
  AC_CHECK_PROG(nvcc_found,nvcc,yes,no)
  if test x"${nvcc_found}" = x"no" ; then
    AC_MSG_ERROR([nvcc not found; try to set the cuda-path or disable GPU support])
  fi
1093

1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
  dnl check whether we find cublas
  AC_SEARCH_LIBS([cublasDgemm],[cublas],[have_cublas=yes],[have_cublas=no])
  if test x"${have_cublas}" = x"no"; then
    AC_MSG_ERROR([Could not link cublas; try to set the cuda-path or disable GPU support])
  fi
  AC_SEARCH_LIBS([cudaMemcpy],[cudart],[have_cudart=yes],[have_cudart=no])
  if test x"${have_cudart}" = x"no"; then
    AC_MSG_ERROR([Could not link cudart; try to set the cuda-path or disable GPU support])
  fi
  AC_LANG_POP([C])
1104
1105
fi

Andreas Marek's avatar
Andreas Marek committed
1106

1107
1108
1109
1110
m4_foreach_w([elpa_m4_kernel],elpa_m4_all_kernels,[
  AM_CONDITIONAL([WITH_]m4_toupper(elpa_m4_kernel)[_KERNEL],[test x"$use_[]elpa_m4_kernel[]" = x"yes"])
  if test x"$use_[]elpa_m4_kernel[]" = x"yes" ; then
    AC_DEFINE([WITH_]m4_toupper(elpa_m4_kernel)[_KERNEL],[1],[Build elpa_m4_kernel kernel])
1111
1112
1113
    kernel_defined=1
  else
    kernel_defined=0
1114
  fi
1115
1116
  [ELPA_2STAGE_]m4_toupper(elpa_m4_kernel)[_COMPILED]=$kernel_defined
  AC_SUBST([ELPA_2STAGE_]m4_toupper(elpa_m4_kernel)[_COMPILED])
1117
])
Andreas Marek's avatar
Andreas Marek committed
1118
1119


1120
1121
AM_CONDITIONAL([WITH_GPU_VERSION],[test x"$use_real_gpu" = x"yes" -o x"$use_complex_gpu" = x"yes"])
if test x"$use_real_gpu" = x"yes" -o x"$use_complex_gpu" = x"yes" ; then
1122
  AC_DEFINE([WITH_GPU_VERSION],[1],[enable GPU support])
1123
  AC_DEFINE([WITH_GPU_KERNEL],[1],[GPU kernel should be build])
1124
1125
1126
1127
1128
  ELPA_2STAGE_COMPLEX_GPU_COMPILED=1
  ELPA_2STAGE_REAL_GPU_COMPILED=1
else
  ELPA_2STAGE_COMPLEX_GPU_COMPILED=0
  ELPA_2STAGE_REAL_GPU_COMPILED=0
Andreas Marek's avatar
Andreas Marek committed
1129
fi
1130
1131
AC_SUBST([ELPA_2STAGE_COMPLEX_GPU_COMPILED])
AC_SUBST([ELPA_2STAGE_REAL_GPU_COMPILED])
Andreas Marek's avatar
Andreas Marek committed
1132

1133
1134
LT_INIT

1135
1136
1137
1138
1139
1140
DX_PDF_FEATURE(OFF)
DX_PS_FEATURE(OFF)
DX_MAN_FEATURE(ON)
DX_HTML_FEATURE(ON)
DX_INIT_DOXYGEN([ELPA], [Doxyfile], [docs])

Andreas Marek's avatar
Andreas Marek committed
1141
AC_MSG_CHECKING(whether assumed size Fortran arrays should be used)
1142
AC_ARG_ENABLE([assumed-size],
1143
                AS_HELP_STRING([--disable-assumed-size],
1144
1145
                               [do NOT use assumed-size Fortran arrays]),
                               [if test x"$enableval" = x"yes"; then
Andreas Marek's avatar
Andreas Marek committed
1146
                                  USE_ASSUMED_SIZE=yes
1147
1148
1149
                                else
                                  USE_ASSUMED_SIZE=no
                                fi],
1150
              [USE_ASSUMED_SIZE=yes])
1151
1152
1153
AC_MSG_RESULT([${USE_ASSUMED_SIZE}])
AM_CONDITIONAL([WITH_USE_ASSUMED_SIZE],[test x"$USE_ASSUMED_SIZE" = x"yes"])
if test x"${USE_ASSUMED_SIZE}" = x"yes" ; then
1154
  AC_DEFINE([USE_ASSUMED_SIZE],[1],[for performance reasons use assumed size Fortran arrays, even if not debuggable])
1155
1156
fi

Andreas Marek's avatar
Andreas Marek committed
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
AC_MSG_CHECKING(whether Fortran2008 features should be enabled)
AC_ARG_ENABLE([Fortran2008-features],
              AS_HELP_STRING([--enable-Fortran2008-features],
                             [enables some Fortran 2008 features, default yes.]),
			     [
			      if test x"$enableval" = x"yes"; then
			        enable_fortran2008_features=yes
		              else
			        enable_fortran2008_features=no
			      fi
			      ],
Andreas Marek's avatar
Andreas Marek committed
1168
              [enable_fortran2008_features=yes])
Andreas Marek's avatar
Andreas Marek committed
1169
1170
1171
1172
1173
1174
AC_MSG_RESULT([${enable_fortran2008_features}])
AM_CONDITIONAL([USE_FORTRAN2008],[test x"$enable_fortran2008_features" = x"yes"])
if test x"${enable_fortran2008_features}" = x"yes"; then
 AC_DEFINE([USE_FORTRAN2008], [1], [use some Fortran 2008 features])
fi

Andreas Marek's avatar
Andreas Marek committed
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
AC_MSG_CHECKING(whether autotuning functionality should be enabled)
AC_ARG_ENABLE([autotuning],
              AS_HELP_STRING([--enable-autotuning],
                             [enables autotuning functionality, default yes.]),
			     [
			      if test x"$enableval" = x"yes"; then
			        enable_autotuning=yes
		              else
			        enable_autotuning=no
			      fi
			      ],
              [enable_autotuning=yes])
AC_MSG_RESULT([${enable_autotuning}])
AM_CONDITIONAL([ENABLE_AUTOTUNING],[test x"$enable_autotuning" = x"yes"])
if test x"${enable_autotuning}" = x"yes"; then
 AC_DEFINE([ENABLE_AUTOTUNING], [1], [enable autotuning functionality])
fi

AC_MSG_CHECKING(whether C tests should be provided)
AC_ARG_ENABLE([c-tests],
              AS_HELP_STRING([--enable-c-tests],
                             [enables the C tests for elpa, default yes.]),
			     [
			      if test x"$enableval" = x"yes"; then
			        enable_c_tests=yes
		              else
			        enable_c_tests=no
			      fi
			      ],
              [enable_c_tests=yes])
AC_MSG_RESULT([${enable_c_tests}])
AM_CONDITIONAL([ENABLE_C_TESTS],[test x"$enable_c_tests" = x"yes"])
if test x"${enable_c_tests}" = x"yes"; then
 AC_DEFINE([ENABLE_C_TESTS], [1], [enable C tests])
fi

Andreas Marek's avatar
Andreas Marek committed
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
AC_MSG_CHECKING(whether we build for K-computer)
AC_ARG_ENABLE([K-computer],
              AS_HELP_STRING([--enable-K-computer],
                             [enable builds on K-Computer, default no.]),
			     [if test x"$enableval"=x"yes"; then
			        enable_kcomputer=yes
		              else
				enable_kcomputer=no
			      fi],
              [enable_kcomputer=no])
AC_MSG_RESULT([${enable_kcomputer}])
AM_CONDITIONAL([BUILD_KCOMPUTER],[test x"$enable_kcomputer" = x"yes"])
if test x"${enable_kcomputer}" = x"yes"; then
 AC_DEFINE([BUILD_KCOMPUTER], [1], [build for K-Computer])
 FC_MODINC="-I"
  if test x"${USE_ASSUMED_SIZE}" = x"yes" ; then
    AC_MSG_ERROR(on K-computer you have to switch off assumed-size arrays!)
  fi
  if test x"${enable_fortran2008_features}" = x"yes" ; then
    AC_MSG_ERROR(on K-computer you have to switch off Fortran 2008 features!)
  fi
fi

1234
1235
1236
if test x"${want_single_precision}" = x"yes" ; then
  AC_DEFINE([WANT_SINGLE_PRECISION_REAL],[1],[build also single-precision for real calculation])
  AC_DEFINE([WANT_SINGLE_PRECISION_COMPLEX],[1],[build also single-precision for complex calculation])
1237
fi
1238
1239
AM_CONDITIONAL([WANT_SINGLE_PRECISION_REAL],[test x"$want_single_precision" = x"yes"])
AM_CONDITIONAL([WANT_SINGLE_PRECISION_COMPLEX],[test x"$want_single_precision" = x"yes"])
1240

1241
AC_SUBST([MPI_BINARY])
1242
1243
1244
1245
AC_SUBST([WITH_MKL])
AC_SUBST([WITH_BLACS])
AC_SUBST([FC_MODINC])
AC_SUBST([FC_MODOUT])
1246
1247
1248
AC_SUBST([OPENMP_CFLAGS])
AC_SUBST([OPENMP_FCFLAGS])
AC_SUBST([OPENMP_LDFLAGS])
1249
AC_SUBST([DOXYGEN_OUTPUT_DIR], [docs])
1250

1251
mkdir -p modules private_modules test_modules
1252

1253
1254
1255
1256
1257
1258
1259
1260
1261
1262

#gl_VISIBILITY
#AH_BOTTOM([#if HAVE_VISIBILITY
#define EXPORTED __attribute__((__visibility__("default")))
#define HIDDEN   __attribute__((__visibility__("hidden")))
#else
#define EXPORTED
#define HIDDEN
#endif])

1263
1264
1265
1266
1267
1268
1269
1270
1271

# Some part of libtool is too smart and tries to parse the output of
#   gfortran -v
# and catches anything that resembles a -l library link specification.
# Unfortunately, recent versions of gfortran emit
#   -l gfortran
# with a space between -l and gfortran. The empty -l is then included
# into "postdeps_FC" and causes linking errors later on.
postdeps_FC=$(echo $postdeps_FC | sed 's/-l //g')
1272

1273
1274
if test x"${with_mpi}" = x"yes"; then
  if test x"${enable_openmp}" = x"yes"; then
1275
        SUFFIX="_openmp"
1276
  else
1277
        SUFFIX=""
1278
1279
1280
  fi
else
  if test x"${enable_openmp}" = x"yes"; then
1281
        SUFFIX="_onenode_openmp"
1282
  else
1283
        SUFFIX="_onenode"
1284
  fi
1285
fi
1286

1287
1288
AC_SUBST([SUFFIX])
AC_SUBST([PKG_CONFIG_FILE],[elpa${SUFFIX}-${PACKAGE_VERSION}.pc])
1289

1290
1291
AC_CONFIG_FILES([
  Makefile
1292
  Doxyfile
1293
  ${PKG_CONFIG_FILE}:elpa.pc.in
1294
  elpa/elpa_constants.h
1295
  elpa/elpa_version.h
1296
])
1297

1298
1299
1300
1301
m4_include([m4/ax_fc_check_define.m4])
AC_MSG_CHECKING([if workaround for broken preprocessor is needed])

need_manual_cpp=no
1302
1303
AX_FC_CHECK_DEFINE([__INTEL_COMPILER],[is_intel=yes],[])
AX_FC_CHECK_DEFINE([__PGI],[is_pgi=yes],[])
Lorenz Huedepohl's avatar
Lorenz Huedepohl committed
1304
1305
ACTUAL_FC="$FC"
AC_SUBST([ACTUAL_FC])
1306
1307
1308
1309
1310
1311
1312
1313

if test x"$is_intel" = x"yes" ; then
	need_manual_cpp=yes
fi
if test x"$is_pgi" = x"yes" ; then
	need_manual_cpp=yes
fi

1314
if test x"$need_manual_cpp" = x"yes" ; then
1315
1316
        AC_MSG_RESULT([yes])
        FC="\$(top_srcdir)/manual_cpp $FC"
1317
else
1318
        AC_MSG_RESULT([no])
1319
1320
fi

1321
1322
1323
1324
if test x"$is_pgi" = x"yes" ; then
	AC_DEFINE([PGI_VARIABLE_STRING_BUG], [1], [Work around a PGI bug with variable-length string results])
fi

Lorenz Huedepohl's avatar
Lorenz Huedepohl committed
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337

dnl PGI compiler uses -module to specify module output
dnl directory. This clashes with libtools -module link option
dnl => escape it for libtool with -Xcompiler -module
AC_MSG_CHECKING([whether we have to escape '-module' for libtool])
if test x"$FC_MODOUT" = x'-module ' ; then
        FC_MODOUT="-Xcompiler $FC_MODOUT -Xcompiler \$(ac_empty)"
        FC="\$(top_srcdir)/remove_xcompiler $FC"
        AC_MSG_RESULT([yes])
else
        AC_MSG_RESULT([no])
fi

1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
AC_MSG_CHECKING(whether --enable-python is specified)
AC_ARG_ENABLE([python],
              AS_HELP_STRING([--enable-python],
                             [build and install python wrapper, default no.]),
              [
	       if test x"$enableval" = x"yes"; then
	         enable_python=yes
	       else
	         enable_python=no
	       fi
	       ],
              [enable_python=no])
AC_MSG_RESULT([${enable_python}])
AM_CONDITIONAL([WITH_PYTHON],[test x"$enable_python" = x"yes"])
if test x"${enable_python}" = x"yes"; then
        AC_DEFINE([WITH_PYTHON], [1], [build and install python wrapper])
        # check for python and dependencies
        AM_PATH_PYTHON([3.6])
        AC_ARG_VAR([PYTHON_INCLUDE], [Include flags for python, bypassing python-config])
        AC_ARG_VAR([PYTHON_CONFIG], [Path to python-config])
        AS_IF([test -z "$PYTHON_INCLUDE"], [
          AS_IF([test -z "$PYTHON_CONFIG"], [
            AC_PATH_PROGS([PYTHON_CONFIG],
                          [python$PYTHON_VERSION-config python-config],
                          [no],
                          [`dirname $PYTHON`])
            AS_IF([test "$PYTHON_CONFIG" = no], [AC_MSG_ERROR([cannot find python-config for $PYTHON.])])
          ])
          AC_MSG_CHECKING([python include flags])
          PYTHON_INCLUDE=`$PYTHON_CONFIG --includes`
          AC_MSG_RESULT([$PYTHON_INCLUDE])
        ])
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
        AC_MSG_CHECKING([numpy module])
        AS_IF([$PYTHON -c "import numpy"], [AC_MSG_RESULT([found.])],
              [AC_MSG_ERROR([cannot find numpy.])])
        AC_MSG_CHECKING([mpi4py module])
        AS_IF([$PYTHON -c "import mpi4py"], [AC_MSG_RESULT([found.])],
              [AC_MSG_ERROR([cannot find mpi4py.])])
        AC_MSG_CHECKING([cython module])
        AS_IF([$PYTHON -c "import cython"], [AC_MSG_RESULT([found.])],
              [AC_MSG_ERROR([cannot find cython.])])
        AC_CHECK_PROG([cython_found], [cython], [yes], [no])
        if test x"$cython_found" != x"yes" ; then
          AC_MSG_ERROR([cython not found.])
        fi
        AC_ARG_VAR([NUMPY_INCLUDE], [Include flags for numpy])
        AC_MSG_CHECKING([numpy include flags])
        NUMPY_INCLUDE=-I`$PYTHON -c "import numpy; print(numpy.get_include())"`
        AS_IF([test "$NUMPY_INCLUDE" = "-I"], [AC_MSG_ERROR([cannot get numpy include path.])])
        AC_MSG_RESULT([$NUMPY_INCLUDE])
1388
fi
Sebastian Ohlmann's avatar
Sebastian Ohlmann committed
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
AC_MSG_CHECKING(whether --enable-python-tests is specified)
AC_ARG_ENABLE([python-tests],
              AS_HELP_STRING([--enable-python-tests],
                             [enable python tests, default no.]),
              [
	       if test x"$enableval" = x"yes"; then
	         enable_python_tests=yes
	       else
	         enable_python_tests=no
	       fi
	       ],
              [enable_python_tests=no])
AC_MSG_RESULT([${enable_python_tests}])
AM_CONDITIONAL([WITH_PYTHON_TESTS],[test x"$enable_python_tests" = x"yes"])
if test x"${enable_python_tests}" = x"yes"; then
        if test x"${enable_python}" = x"no"; then
          AC_MSG_ERROR([Python tests can only be enabled it python is enabled.])
        fi
        AC_CHECK_PROG([pytest_found], [pytest], [yes], [no])
        if test x"$pytest_found" != x"yes" ; then
          AC_MSG_ERR