configure.ac 43.6 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)
#
30
AC_SUBST([ELPA_SO_VERSION], [11:0:0])
31 32 33

# API Version
AC_DEFINE([EARLIEST_API_VERSION], [20170403], [Earliest supported ELPA API version])
Andreas Marek's avatar
Andreas Marek committed
34
AC_DEFINE([CURRENT_API_VERSION], [20180301], [Current ELPA API version])
Andreas Marek's avatar
Andreas Marek committed
35 36
# Autotune Version
AC_DEFINE([EARLIEST_AUTOTUNE_VERSION], [20171201], [Earliest ELPA API version, which supports autotuning])
37

38 39 40 41 42
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
43 44 45
AC_MSG_CHECKING(whether legacy interface should be provided)
AC_ARG_ENABLE([legacy-interface],
              AS_HELP_STRING([--disable-legacy-interface],
46
                             [do not build legacy API, default yes]),
Andreas Marek's avatar
Andreas Marek committed
47 48 49 50 51 52 53
              [
	       if test x"$enableval" = x"yes"; then
	         enable_legayc=yes
	       else
	         enable_legacy=no
	       fi
	       ],
54
              [enable_legacy=yes])
Andreas Marek's avatar
Andreas Marek committed
55
AC_MSG_RESULT([${enable_legacy}])
56
AM_CONDITIONAL([ENABLE_LEGACY],[test x"$enable_legacy" = x"yes"])
Andreas Marek's avatar
Andreas Marek committed
57 58 59 60
if test x"${enable_legacy}" = x"yes"; then
        AC_DEFINE([ENABLE_LEGACY], [1], [enable legacy interface])
fi

61 62 63 64 65

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

66

67
dnl OpenMP
68
m4_include([m4/ax_elpa_openmp.m4])
69 70
AC_MSG_CHECKING(whether --enable-openmp is specified)
AC_ARG_ENABLE([openmp],
71 72
              AS_HELP_STRING([--enable-openmp],
                             [use OpenMP threading, default no.]),
Andreas Marek's avatar
Andreas Marek committed
73 74 75 76 77 78 79
              [
	       if test x"$enableval" = x"yes"; then
	         enable_openmp=yes
	       else
	         enable_openmp=no
	       fi
	       ],
80
              [enable_openmp=no])
81 82 83
AC_MSG_RESULT([${enable_openmp}])
AM_CONDITIONAL([WITH_OPENMP],[test x"$enable_openmp" = x"yes"])
if test x"${enable_openmp}" = x"yes"; then
84
        AC_DEFINE([WITH_OPENMP], [1], [use OpenMP threading])
85 86
fi

87

88 89
dnl mpi
AC_ARG_WITH(mpi, [AS_HELP_STRING([--with-mpi=[[yes|no]]], [compile with MPI. Default: yes])],,[with_mpi=yes])
90
AM_CONDITIONAL([WITH_MPI],[test x"$with_mpi" = x"yes"])
91
if test x"${with_mpi}" = x"yes"; then
92
  AC_DEFINE([WITH_MPI], [1], [use MPI])
93 94
fi

95 96 97 98 99 100

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
101 102 103 104 105 106 107
              [
	       if test x"$enableval" = x"yes"; then
	         enable_scalapack_tests=yes
	       else
	         enable_scalapack_tests=no
	       fi
	       ],
108 109 110 111 112 113 114 115 116 117 118 119
              [enable_scalapack_tests="no"])
AC_MSG_RESULT([$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
120
AC_LANG_PUSH([C])
121 122 123 124 125 126
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
127

128
if test x"${enable_openmp}" = x"yes"; then
129 130 131 132 133
  AX_ELPA_OPENMP
  if test "$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"
134
fi
135

136 137 138 139 140 141 142 143

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

144
AC_PROG_INSTALL
145 146
AM_PROG_AR
AM_PROG_AS
147
AC_PROG_CC_C99
148
AM_PROG_CC_C_O
149
AC_LANG_POP([C])
Andreas Marek's avatar
Andreas Marek committed
150 151

# Fortran
152
AC_LANG_PUSH([Fortran])
Andreas Marek's avatar
Andreas Marek committed
153
m4_include([m4/ax_prog_fc_mpi.m4])
154 155 156 157 158 159
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
160

161
AC_FC_SRCEXT([F90])
162 163 164 165 166
AC_FC_FREEFORM
AC_FC_MODULE_FLAG
AC_FC_MODULE_OUTPUT_FLAG
AC_FC_LIBRARY_LDFLAGS

167

168
if test x"${enable_openmp}" = x"yes"; then
169 170 171 172 173
  AX_ELPA_OPENMP
  if test "$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"
174 175
fi

176 177
dnl check which MPI binray invokes a MPI job
if test x"$with_mpi" = x"yes"; then
178
  AC_CHECK_PROGS([MPI_BINARY], [mpiexec.hydra mpiexec mpirun poe runjob srun], [no])
179
  if test x"$MPI_BINARY" = x"no"; then
180
    AC_MSG_ERROR([Could not find either of the MPI binaries: mpiexec.hydra, mpiexec, mpirun, poe, runjob, srun])
181 182 183
  fi
fi

184 185 186
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)
187
AC_ARG_ENABLE([redirect],
188 189
              [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
190 191 192 193 194 195 196
              [
               if test x"$enableval" = x"yes"; then
                 enable_redirect=yes
               else
                 enable_redirect=no
               fi
	       ],
197
              [enable_redirect=no])
198 199
AC_MSG_RESULT([${enable_redirect}])

200 201 202 203 204 205 206 207 208 209
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}])


210 211
dnl redirect
if test x"${enable_redirect}" = x"yes"; then
212 213
  AC_DEFINE([HAVE_REDIRECT], [1], [Redirect stdout and stderr of test programs per MPI tasks to a file])
fi
214 215 216
AM_CONDITIONAL([HAVE_REDIRECT],[test x"$enable_redirect" = x"yes"])

dnl build with ftimings support
217

Andreas Marek's avatar
Andreas Marek committed
218
AC_ARG_ENABLE([timings],
219 220
              [AS_HELP_STRING([--disable-timings],
                              [more detailed timing, default yes])],
Andreas Marek's avatar
Andreas Marek committed
221 222 223 224 225 226 227
              [
               if test x"$enableval" = x"yes"; then
                 enable_timings=yes
               else
                 enable_timings=no
               fi
	       ],
228
              [enable_timings=yes])
229 230 231 232

if test x"${enable_timings}" = x"yes"; then
  AC_DEFINE([HAVE_DETAILED_TIMINGS], [1], [Enable more timing])
fi
233
AM_CONDITIONAL([HAVE_DETAILED_TIMINGS], [test x"$enable_timings" = x"yes"])
234 235

dnl PAPI for ftimings
236
AC_LANG_PUSH([C])
237
AC_ARG_WITH([papi],
238 239
            [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
240 241 242 243 244 245 246
            [
               if test x"$enableval" = x"yes"; then
                 with_papi=yes
               else
                 with_papi=no
               fi
	     ],
247
            [with_papi="no"])
248 249
if test x"${enable_timings}" = x"yes"; then
  if test x"$with_papi" = x"yes" ; then
250
    AC_SEARCH_LIBS([PAPI_library_init], [papi], [papi_found=yes], [papi_found=no])
251 252
    if test x"$papi_found" = x"no" ; then
      AC_MSG_ERROR(["Could not find usable PAPI installation, please install or adjust CFLAGS, LDFLAGS"])
253 254 255 256
    fi
    AC_DEFINE([HAVE_LIBPAPI], [1], [Use the PAPI library])
  fi
fi
257
AC_LANG_POP([C])
258

259 260 261
save_FCFLAGS=$FCFLAGS
save_LDFLAGS=$LDFLAGS

262 263 264
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])

265 266
FCFLAGS="$FCFLAGS $SCALAPACK_FCFLAGS"
LDFLAGS="$LDFLAGS $SCALAPACK_LDFLAGS"
267

268
dnl check whether fortran error_unit is defined
269
AC_MSG_CHECKING([whether Fortran module iso_fortran_env is available])
270
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
271
  program test_error_unit
272
    use iso_fortran_env, only : error_unit
273 274 275 276 277 278 279 280
    implicit none

    write(error_unit,*) "error_unit is defined"
  end program
])],
  [can_use_iso_fortran_env=yes],
  [can_use_iso_fortran_env=no]
)
281
AC_MSG_RESULT([${can_use_iso_fortran_env}])
282 283 284 285
if test x"${can_use_iso_fortran_env}" = x"yes" ; then
 AC_DEFINE([HAVE_ISO_FORTRAN_ENV],[1],[can use module iso_fortran_env])
fi

286

287 288
dnl check whether one can link with specified MKL (desired method)
AC_MSG_CHECKING([whether we can compile a Fortran program using MKL])
289
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
290
  program test_mkl
291
    use mkl_service
292 293 294 295 296 297 298 299 300 301 302 303
    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"$can_compile_with_mkl" = x"yes" ; then
  AC_MSG_CHECKING([whether we can link a Fortran program with MKL])
304
  AC_LINK_IFELSE([AC_LANG_SOURCE([
305
    program test_mkl
306
      use mkl_service
307 308 309 310 311
      character*198 :: string
      call mkl_get_version_string(string)
      write(*,'(a)') string
    end program
  ])],
Andreas Marek's avatar
Andreas Marek committed
312 313
    [have_mkl=yes],
    [have_mkl=no]
314
  )
Andreas Marek's avatar
Andreas Marek committed
315
  AC_MSG_RESULT([${have_mkl}])
316 317 318
fi

dnl if not mkl, check all the necessary individually
319
if test x"${have_mkl}" = x"yes" ; then
320 321 322 323
  WITH_MKL=1
else

  dnl first check blas
324
  AC_SEARCH_LIBS([dgemm],[openblas satlas blas],[have_blas=yes],[have_blas=no])
Andreas Marek's avatar
Andreas Marek committed
325 326
  AC_MSG_CHECKING([whether we can link a program with a blas lib])
  AC_MSG_RESULT([${have_blas}])
327

328
  if test x"${have_blas}" = x"no" ; then
329
    AC_MSG_ERROR([could not link with blas: specify path])
330
  fi
331
  dnl now lapack
Andreas Marek's avatar
Andreas Marek committed
332 333 334
  AC_SEARCH_LIBS([dlarrv],[lapack],[have_lapack=yes],[have_lapack=no])
  AC_MSG_CHECKING([whether we can link a program with a lapack lib])
  AC_MSG_RESULT([${have_lapack}])
335

336
  if test x"${have_lapack}" = x"no" ; then
337
    AC_MSG_ERROR([could not link with lapack: specify path])
338
  fi
Andreas Marek's avatar
Andreas Marek committed
339

340
  if test x"${with_mpi}" = x"yes"; then
341
    dnl test whether scalapack already contains blacs
342
    scalapack_libs="mpiscalapack scalapack scalapack-openmpi"
343 344 345 346 347
    old_LIBS="$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
348
	       
349 350 351 352 353
      AC_MSG_RESULT([${blacs_in_scalapack}])
      if test x"${blacs_in_scalapack}" = x"yes"; then
        break
      fi
    done
354

355 356
    if test x"${blacs_in_scalapack}" = x"no"; then
      LIBS="${old_LIBS}"
357

358 359
      dnl Test for stand-alone blacs
      AC_SEARCH_LIBS([bi_f77_init],[mpiblacsF77init],[],[],[-lmpiblacs])
360 361 362 363 364 365

      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
366
      AC_SEARCH_LIBS([blacs_gridinit],[mpiblacs blacs],[have_blacs=yes],[have_blacs=no])
Andreas Marek's avatar
Andreas Marek committed
367

368 369 370
      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
371
    fi
372

373
    AC_SEARCH_LIBS([pdtran],[$scalapack_libs],[have_scalapack=yes],[have_scalapack=no])
Andreas Marek's avatar
Andreas Marek committed
374

375 376 377
    if test x"${have_scalapack}" = x"no" ; then
      AC_MSG_ERROR([could not link with scalapack: specify path])
    fi
378 379 380 381
  fi

  dnl check whether we can link alltogehter
  AC_MSG_CHECKING([whether we can link a Fortran program with all blacs/scalapack])
382
  AC_LINK_IFELSE([AC_LANG_SOURCE([
383 384
    program dgemm_test

385 386
      integer , parameter:: M = 4, N = 3, K = 2
      real :: A(M,K), B(K,N), C(M,N)
387

388
      call dgemm('N','N',M,N,K,1.0,A,M,B,K,0.0,C,M)
389 390 391 392 393 394 395 396

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

397
   if test x"${can_link_with_blacs_scalapack}" = x"yes" ; then
398 399
     WITH_BLACS=1
   else
400
   AC_MSG_ERROR([We can neither link with MKL or another Scalpack. Please specify SCALAPACK_LDFLAGS and SCALAPACK_FCFLAGS!])
401 402 403
   fi
fi

404 405 406 407
dnl important: reset them again!
FCFLAGS=$save_FCFLAGS
LDFLAGS=$save_LDFLAGS

408

Andreas Marek's avatar
Andreas Marek committed
409 410 411 412
dnl check for intrinsic fortran function of 2003 standard
AC_MSG_CHECKING([whether we can use the intrinsic Fortran function "get_environment_variable"])


413
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
Andreas Marek's avatar
Andreas Marek committed
414 415 416 417 418 419 420 421 422
  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([${fortran_can_check_environment}])
423 424 425
if test x"${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
426

427

428 429
dnl check whether BAND_TO_FULL_BLOCKING is set
AC_MSG_CHECKING(whether BAND_TO_FLULL_BLOCKING is requested)
430
AC_ARG_ENABLE(band-to-full-blocking,[AS_HELP_STRING([--disable-band-to-full-blocking],
431
                                                    [build ELPA2 with blocking in band_to_full (default: enabled)])],
Andreas Marek's avatar
Andreas Marek committed
432 433 434 435 436 437 438
              [
               if test x"$enableval" = x"yes"; then
                 enable_band_to_full_blocking=yes
               else
                 enable_band_to_full_blocking=no
               fi
	       ],
439 440
	      [enable_band_to_full_blocking="yes"])
AC_MSG_RESULT([${enable_band_to_full_blocking}])
441

442 443
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
444
       AC_DEFINE([BAND_TO_FULL_BLOCKING], [1], [use blocking in trans_ev_band_to_full])
445 446
fi

447 448 449 450 451 452 453

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])

454

455
dnl setup nvcc flags and use them in later tests
456 457 458
user_sets_gpu_compute_capability="no"
AC_MSG_CHECKING(whether a GPU compute capability is specified)
AC_ARG_WITH([GPU-compute-capability],
459 460 461
            [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"])
462 463
AC_MSG_RESULT([${user_sets_gpu_compute_capability}])

464

465 466 467 468 469 470 471 472 473 474 475
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
476

477 478
dnl Test possibility of 'use mpi', if requested
if test x"${with_mpi}" = x"yes" ; then
479 480
  AC_ARG_ENABLE([mpi-module],
                AS_HELP_STRING([--disable-mpi-module],
481
                               [do not use the Fortran MPI module, get interfaces by 'include "mpif.h')]),
Andreas Marek's avatar
Andreas Marek committed
482 483 484 485 486 487 488
                [
                 if test x"$enableval" = x"yes"; then
                   enable_mpi_module=yes
                 else
                   enable_mpi_module=no
                 fi
		 ],
489 490
                [enable_mpi_module=yes])
  if test x"${enable_mpi_module}" = x"yes" ; then
491 492 493 494 495 496 497 498 499 500 501 502 503 504 505
    AC_MSG_CHECKING(whether Fortran mpi module can be used)
    AC_COMPILE_IFELSE([AC_LANG_SOURCE([
      program test_mpi_module
        use mpi
        real :: time
        time = MPI_WTime()
      end program
    ])],
      [can_use_fortran_mpi_module=yes],
      [can_use_fortran_mpi_module=no]
    )
    AC_MSG_RESULT([${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
506
      AC_MSG_ERROR([Could not compile a Fortran program with an 'use mpi' statement. You can try again with --disable-mpi-module])
507
    fi
508
  fi
Andreas Marek's avatar
Andreas Marek committed
509
fi
510
AC_LANG_POP([Fortran])
Andreas Marek's avatar
Andreas Marek committed
511

512 513
dnl Assemble the list of kernels to build
m4_pattern_forbid([elpa_m4])
Andreas Marek's avatar
Andreas Marek committed
514

515 516 517 518 519 520
m4_define(elpa_m4_generic_kernels, [
        real_generic
        real_generic_simple
        complex_generic
        complex_generic_simple
])
521

522 523 524 525
m4_define(elpa_m4_sse_assembly_kernels, [
        real_sse_assembly
        complex_sse_assembly
])
526

527 528 529 530 531 532 533
m4_define(elpa_m4_sse_kernels, [
        real_sse_block2
        real_sse_block4
        real_sse_block6
        complex_sse_block1
        complex_sse_block2
])
534

535 536 537 538 539 540
m4_define(elpa_m4_sparc64_kernels, [
        real_sparc64_block2
        real_sparc64_block4
        real_sparc64_block6
])

541 542 543 544 545 546
m4_define(elpa_m4_vsx_kernels, [
        real_vsx_block2
        real_vsx_block4
        real_vsx_block6
])

547 548 549 550 551 552 553
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
554

555 556 557 558 559 560 561
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
562

563 564 565 566 567 568 569
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
570

571 572 573 574
m4_define(elpa_m4_bgp_kernels, [
        real_bgp
        complex_bgp
])
Andreas Marek's avatar
Andreas Marek committed
575

576 577 578 579
m4_define(elpa_m4_bgq_kernels, [
        real_bgq
        complex_bgq
])
Andreas Marek's avatar
Andreas Marek committed
580

581
m4_define(elpa_m4_gpu_kernels, [
582 583
        real_gpu
        complex_gpu
584
])
585

586
m4_define(elpa_m4_kernel_types, [generic sparc64 vsx sse sse_assembly avx avx2 avx512 bgp bgq gpu])
587

588 589 590 591
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
592

593 594 595 596
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
597

598 599 600 601
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) ]))
602

603 604 605 606 607 608 609 610 611 612 613 614 615
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]
        ])
])
616

617 618
dnl Modify list of kernels with configure arguments
ELPA_SELECT_KERNELS([generic],[enable])
619
ELPA_SELECT_KERNELS([sparc64],[disable])
620
ELPA_SELECT_KERNELS([vsx],[disable])
621 622 623 624 625 626 627 628 629 630 631 632
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=""
])
633

634
if test x"${enable_bgp}" = x"yes" -o x"$enable_bgq" = x"yes"; then
635
        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, [
636 637 638 639 640 641 642 643 644 645 646 647
                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:]
648 649
                 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[_$withval"],[fixed_]elpa_m4_kind[_kernel=""])
650
        if test -n "$fixed_[]elpa_m4_kind[]_kernel" ; then
651
                found="no"
652 653 654
                m4_foreach_w([elpa_m4_otherkernel],m4_expand(elpa_m4_[]elpa_m4_kind[]_kernels),[
                        if test "$fixed_]elpa_m4_kind[_kernel" = "]elpa_m4_otherkernel[" ; then
                                use_[]elpa_m4_otherkernel[]=yes
655
                                found="yes"
656 657 658 659
                        else
                                use_[]elpa_m4_otherkernel[]=no
                        fi
                ])
660 661 662
                if test x"$found" = x"no" ; then
                        AC_MSG_ERROR([Invalid kernel "$fixed_]elpa_m4_kind[_kernel" specified for --with-fixed-]elpa_m4_kind[-kernel])
                fi
663 664 665 666
                default_[]elpa_m4_kind[]_kernel="$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
])
667

668 669 670 671 672 673 674
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
        ])
675 676
        use_real_gpu=yes
        use_complex_gpu=yes
677
fi
678

679

680 681 682 683 684 685 686 687 688 689 690 691 692 693 694
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
])
695
m4_foreach_w([elpa_m4_arch],[sparc64 vsx sse avx avx2 avx512],[
696 697 698 699
        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])
])
700

701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720
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
])
721

722

723 724 725 726 727 728
dnl the list of kernels is now assembled
dnl choosing a default kernel

m4_foreach_w([elpa_m4_kind],[real complex],[
        m4_foreach_w([elpa_m4_kernel],
                     m4_foreach_w([elpa_m4_cand_kernel],
729
                                  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,
730 731 732 733 734 735 736 737 738 739 740 741 742
                                  [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 | \
743
                                                                perl -pe 's/^[[^,]]*, *//; s/,.*//;'`
744 745
        AC_SUBST([ELPA_2STAGE_]m4_toupper(elpa_m4_kind)[_DEFAULT])
])
Andreas Marek's avatar
Andreas Marek committed
746

747 748 749 750 751 752 753
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 }
754
AC_LANG_PUSH([C])
755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776

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


777 778 779
if test x"${need_sparc64}" = x"yes"; then
  AC_MSG_CHECKING(whether we can compile SPARC64 with intrinsics in C)
  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
Andreas Marek's avatar
Andreas Marek committed
780 781
#include <fjmfunc.h>
#include <emmintrin.h>
782
int main(int argc, char **argv) {
Andreas Marek's avatar
Andreas Marek committed
783 784
  __m128d  tau1;
  __m128d h1 = _fjsp_neg_v2r8(tau1);
785 786 787 788 789 790 791 792 793 794 795 796
  return 0;
}
    ])],
    [can_compile_sparc64=yes],
    [can_compile_sparc64=no]
  )
  AC_MSG_RESULT([${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
797

798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815
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
816 817 818
fi


819 820
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
821

Andreas Marek's avatar
Andreas Marek committed
822
  $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
823

824 825 826 827 828 829 830 831 832 833
  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
834

835 836
  if test x"${want_single_precision}" = x"yes" ; then
    AC_MSG_CHECKING(whether single-precision SSE assembly kernels can be compiled)
837

Andreas Marek's avatar
Andreas Marek committed
838
    $CC $CFLAGS -c $srcdir/src/elpa2/kernels/asm_x86_64_single_precision.s -o conftest.o 2>&5
839

840 841 842 843 844 845 846 847 848 849 850
    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
851 852 853 854
fi



855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873
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])
874 875 876
fi


877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895
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])
896 897
fi

898

899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917
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
918 919

  if test x"$can_compile_avx512" = x"yes"; then
920
    AC_MSG_CHECKING([whether we compile for Xeon])
Andreas Marek's avatar
Andreas Marek committed
921
    AC_RUN_IFELSE([AC_LANG_SOURCE([
Andreas Marek's avatar
Andreas Marek committed
922 923 924
     #include <x86intrin.h>
     int main(int argc, char **argv){
     __m512d sign;
925
     __m512d h1_real;
Andreas Marek's avatar
Andreas Marek committed
926 927 928 929 930 931 932 933

     __m512d x1 = _mm512_xor_pd(h1_real, sign);
     return 0;
     }
     ])],
     [can_compile_avx512_xeon=yes],
     [can_compile_avx512_xeon=no]
    )
934 935 936
    AC_MSG_RESULT([${can_compile_avx512_xeon}])

    AC_MSG_CHECKING([whether we compile for Xeon PHI])
Andreas Marek's avatar
Andreas Marek committed
937
    AC_RUN_IFELSE([AC_LANG_SOURCE([
Andreas Marek's avatar
Andreas Marek committed
938 939 940 941
     #include <x86intrin.h>
     int main(int argc, char **argv){
     __m512d sign;
     __m512d h1;
Andreas Marek's avatar
Andreas Marek committed
942
     __m512d h2_real;
Andreas Marek's avatar
Andreas Marek committed
943

944
     __m512d x1 = (__m512d) _mm512_xor_epi64((__m512i) h2_real, (__m512i) sign);
Andreas Marek's avatar
Andreas Marek committed
945 946 947 948 949 950
     return 0;
     }
     ])],
     [can_compile_avx512_xeon_phi=yes],
     [can_compile_avx512_xeon_phi=no]
    )
951 952
    AC_MSG_RESULT([${can_compile_avx512_xeon_phi}])

953 954 955 956 957 958
    # 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
959
	  echo "Xeon PHI found ... disabling AVX512 Xeon"
960 961 962 963 964
          can_compile_avx512_xeon=no
        fi
      fi
    fi

Andreas Marek's avatar
Andreas Marek committed
965 966 967 968 969 970 971 972 973 974
    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
975
fi
976
AC_LANG_POP([C])
977 978


979 980 981 982 983 984 985
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)
986

987 988 989 990 991 992 993 994 995
    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
996 997
fi

Andreas Marek's avatar
Andreas Marek committed
998

999 1000 1001 1002 1003 1004 1005
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
1006

1007 1008 1009 1010 1011 1012 1013 1014 1015
    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
1016
fi
1017
AC_LANG_POP([Fortran])
1018

1019 1020 1021 1022 1023 1024 1025 1026
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)
1027

1028 1029 1030 1031 1032
  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
1033

1034 1035 1036 1037 1038 1039 1040 1041 1042 1043
  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])
1044 1045
fi

Andreas Marek's avatar
Andreas Marek committed
1046

1047 1048 1049 1050
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])
1051 1052 1053
    kernel_defined=1
  else
    kernel_defined=0
1054
  fi
1055 1056
  [ELPA_2STAGE_]m4_toupper(elpa_m4_kernel)[_COMPILED]=$kernel_defined
  AC_SUBST([ELPA_2STAGE_]m4_toupper(elpa_m4_kernel)[_COMPILED])
1057
])
Andreas Marek's avatar
Andreas Marek committed
1058 1059


1060 1061
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
1062
  AC_DEFINE([WITH_GPU_VERSION],[1],[enable GPU support])
1063
  AC_DEFINE([WITH_GPU_KERNEL],[1],[GPU kernel should be build])
1064 1065 1066 1067 1068
  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
1069
fi
1070 1071
AC_SUBST([ELPA_2STAGE_COMPLEX_GPU_COMPILED])
AC_SUBST([ELPA_2STAGE_REAL_GPU_COMPILED])
Andreas Marek's avatar
Andreas Marek committed
1072

1073 1074
LT_INIT

1075 1076 1077 1078 1079 1080
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
1081
AC_MSG_CHECKING(whether assumed size Fortran arrays should be used)
1082
AC_ARG_ENABLE([assumed-size],
1083
                AS_HELP_STRING([--disable-assumed-size],
1084 1085
                               [do NOT use assumed-size Fortran arrays]),
                               [if test x"$enableval" = x"yes"; then
Andreas Marek's avatar
Andreas Marek committed
1086
                                  USE_ASSUMED_SIZE=yes
1087 1088 1089
                                else
                                  USE_ASSUMED_SIZE=no
                                fi],
1090
              [USE_ASSUMED_SIZE=yes])
1091 1092 1093
AC_MSG_RESULT([${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
1094
  AC_DEFINE([USE_ASSUMED_SIZE],[1],[for performance reasons use assumed size Fortran arrays, even if not debuggable])
1095 1096
fi

Andreas Marek's avatar
Andreas Marek committed
1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107
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"$enableval" = x"yes"; then
			        enable_fortran2008_features=yes
		              else
			        enable_fortran2008_features=no
			      fi
			      ],
Andreas Marek's avatar
Andreas Marek committed
1108
              [enable_fortran2008_features=yes])
Andreas Marek's avatar
Andreas Marek committed
1109 1110 1111 1112 1113 1114
AC_MSG_RESULT([${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
1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150
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
1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173
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

1174 1175 1176
if test x"${want_single_precision}" = x"yes" ; then
  AC_DEFINE([WANT_SINGLE_PRECISION_REAL],[1],[build also single-precision for real calculation])
  AC_DEFINE([WANT_SINGLE_PRECISION_COMPLEX],[1],[build also single-precision for complex calculation])
1177
fi
1178 1179
AM_CONDITIONAL([WANT_SINGLE_PRECISION_REAL],[test x"$want_single_precision" = x"yes"])
AM_CONDITIONAL([WANT_SINGLE_PRECISION_COMPLEX],[test x"$want_single_precision" = x"yes"])
1180

1181
AC_SUBST([MPI_BINARY])
1182 1183 1184 1185
AC_SUBST([WITH_MKL])
AC_SUBST([WITH_BLACS])
AC_SUBST([FC_MODINC])
AC_SUBST([FC_MODOUT])
1186 1187 1188
AC_SUBST([OPENMP_CFLAGS])
AC_SUBST([OPENMP_FCFLAGS])
AC_SUBST([OPENMP_LDFLAGS])
1189
AC_SUBST([DOXYGEN_OUTPUT_DIR], [docs])
1190

1191
mkdir -p modules private_modules test_modules
1192

1193 1194 1195 1196 1197 1198 1199 1200 1201 1202

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

1203 1204 1205 1206 1207 1208 1209 1210 1211

# 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')
1212

1213 1214
if test x"${with_mpi}" = x"yes"; then
  if test x"${enable_openmp}" = x"yes"; then
1215
        SUFFIX="_openmp"
1216
  else
1217
        SUFFIX=""
1218 1219 1220
  fi
else
  if test x"${enable_openmp}" = x"yes"; then
1221
        SUFFIX="_onenode_openmp"
1222
  else
1223
        SUFFIX="_onenode"
1224
  fi
1225
fi
1226

1227 1228
AC_SUBST([SUFFIX])
AC_SUBST([PKG_CONFIG_FILE],[elpa${SUFFIX}-${PACKAGE_VERSION}.pc])
1229

1230 1231
AC_CONFIG_FILES([
  Makefile
1232
  Doxyfile
1233
  ${PKG_CONFIG_FILE}:elpa.pc.in
1234
  elpa/elpa_constants.h
1235
])
1236

1237 1238 1239 1240
m4_include([m4/ax_fc_check_define.m4])
AC_MSG_CHECKING([if workaround for broken preprocessor is needed])

need_manual_cpp=no
1241 1242
AX_FC_CHECK_DEFINE([__INTEL_COMPILER],[is_intel=yes],[])
AX_FC_CHECK_DEFINE([__PGI],[is_pgi=yes],[])
Lorenz Huedepohl's avatar
Lorenz Huedepohl committed
1243 1244
ACTUAL_FC="$FC"
AC_SUBST([ACTUAL_FC])
1245 1246 1247 1248 1249 1250 1251 1252

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

1253
if test x"$need_manual_cpp" = x"yes" ; then
1254 1255
        AC_MSG_RESULT([yes])
        FC="\$(top_srcdir)/manual_cpp $FC"
1256
else
1257
        AC_MSG_RESULT([no])
1258 1259
fi

1260 1261 1262 1263
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
1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276

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

1277

1278
AC_OUTPUT
1279

1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296
echo ""
echo "The following ELPA2 kernels will be build:"
echo ""
m4_foreach_w([elpa_m4_kind],[real complex],[
        m4_foreach_w([elpa_m4_kernel],m4_expand(elpa_m4_[]elpa_m4_kind[]_kernels),[
                if test x"$use_[]elpa_m4_kernel" = x"yes" ; then
                        echo -n "  elpa_m4_kernel"
                        if test "$fixed_]elpa_m4_kind[_kernel" = "]elpa_m4_kernel[" ; then
                                echo -n " (selected as fixed kernel)"
                        fi
                        if test "$default_]elpa_m4_kind[_kernel" = "]elpa_m4_kernel[" ; then
                                echo -n " (default)"
                        fi
                        echo ""
                fi
        ])
])
1297

1298 1299 1300 1301 1302 1303 1304
#echo " "
#echo "***********************************************************************"
#echo "*  This is a the first release candidate of ELPA 2017.11.001.rc1      *"
#echo "*  There might be still some changes until the final release of       *"
#echo "*  ELPA 2017.11.001                                                   *"
#echo "***********************************************************************"
#echo " "
Andreas Marek's avatar
Andreas Marek committed
1305 1306 1307 1308 1309 1310 1311 1312 1313

if test x"$enable_kcomputer" = x"yes" ; then
  echo " "
  echo "Important message:"
  echo "On K-computer (at the moment) the automatic create of the generated"
  echo "headers does not work."
  echo "call: make -f ../generated_headers.am generated-headers top_srcdir=.."
  echo "BEFORE triggering the build with make!"
else
1314
  make -f $srcdir/generated_headers.am generated-headers top_srcdir="$srcdir" CPP="$CPP"
Andreas Marek's avatar
Andreas Marek committed
1315
fi