configure.ac 62.8 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)
#
30
AC_SUBST([ELPA_SO_VERSION], [15:0:0])
31

32 33 34 35 36 37
# AC_DEFINE_SUBST(NAME, VALUE, DESCRIPTION)
# -----------------------------------------
AC_DEFUN([AC_DEFINE_SUBST], [
AC_DEFINE([$1], [$2], [$3])
AC_SUBST([$1], ['$2'])
])
38 39 40

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

42
AC_DEFINE_SUBST(CURRENT_API_VERSION, 20191110, "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 46
AC_DEFINE([CURRENT_AUTOTUNE_VERSION], [20190524], [Current ELPA autotune version])
AC_DEFINE_SUBST(CURRENT_AUTOTUNE_VERSION, 20190524, "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

53 54
enable_legacy=no

Andreas Marek's avatar
Andreas Marek committed
55 56 57 58 59 60 61 62 63 64 65 66 67
AC_MSG_CHECKING(whether in C interface the error argument should be optional)
AC_ARG_ENABLE([optional-argument-in-C-API],
              AS_HELP_STRING([--enable-optional-argument-in-C-API],
                             [do not build C API with error argument as optional, default no]),
              [
	       if test x"$enableval" = x"yes"; then
	         optional_c_error_argument=yes
	       else
	         optional_c_error_argument=no
	       fi
	       ],
              [optional_c_error_argument=no])
AC_MSG_RESULT([${optional_c_error_argument}])
Andreas Marek's avatar
Andreas Marek committed
68
AM_CONDITIONAL([OPTIONAL_C_ERROR_ARGUMENT],[test x"$optional_c_error_argument" = x"yes"])
Andreas Marek's avatar
Andreas Marek committed
69 70 71 72
if test x"${optional_c_error_argument}" = x"yes"; then
        AC_DEFINE([OPTIONAL_C_ERROR_ARGUMENT], [1], [enable error argument in C-API to be optional])
fi

73 74 75 76 77

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

78

79
dnl OpenMP
80
m4_include([m4/ax_elpa_openmp.m4])
81 82
AC_MSG_CHECKING(whether --enable-openmp is specified)
AC_ARG_ENABLE([openmp],
83 84
              AS_HELP_STRING([--enable-openmp],
                             [use OpenMP threading, default no.]),
Andreas Marek's avatar
Andreas Marek committed
85 86 87 88 89 90 91
              [
	       if test x"$enableval" = x"yes"; then
	         enable_openmp=yes
	       else
	         enable_openmp=no
	       fi
	       ],
92
              [enable_openmp=no])
93 94 95
AC_MSG_RESULT([${enable_openmp}])
AM_CONDITIONAL([WITH_OPENMP],[test x"$enable_openmp" = x"yes"])
if test x"${enable_openmp}" = x"yes"; then
96
        AC_DEFINE([WITH_OPENMP], [1], [use OpenMP threading])
97 98
fi

99

100 101
dnl mpi
AC_ARG_WITH(mpi, [AS_HELP_STRING([--with-mpi=[[yes|no]]], [compile with MPI. Default: yes])],,[with_mpi=yes])
102
AM_CONDITIONAL([WITH_MPI],[test x"$with_mpi" = x"yes"])
103
if test x"${with_mpi}" = x"yes"; then
104
  AC_DEFINE([WITH_MPI], [1], [use MPI])
105 106
fi

107 108 109 110 111 112

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
113 114 115 116 117 118 119
              [
	       if test x"$enableval" = x"yes"; then
	         enable_scalapack_tests=yes
	       else
	         enable_scalapack_tests=no
	       fi
	       ],
120 121 122 123 124 125 126 127 128 129 130 131
              [enable_scalapack_tests="no"])
AC_MSG_RESULT([$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
132
AC_LANG_PUSH([C])
133

134 135 136 137 138 139
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
140

141
if test x"${enable_openmp}" = x"yes"; then
142 143 144 145 146
  AX_ELPA_OPENMP
  if test "$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"
147
fi
148

Andreas Marek's avatar
Andreas Marek committed
149 150 151
c11_standard=no
AX_CHECK_COMPILE_FLAG([-std=gnu11], [
  c11_standard=yes
152
], [
Andreas Marek's avatar
Andreas Marek committed
153 154
  echo "C compiler cannot compile -std=gnu11 code"
  echo "testing -std=c11.."
155
])
Andreas Marek's avatar
Andreas Marek committed
156
if test x"$c11_standard" = x"yes"; then
Andreas Marek's avatar
Andreas Marek committed
157 158 159
  CFLAGS+=" -std=gnu11"
fi

Andreas Marek's avatar
Andreas Marek committed
160
if test x"$c11_standard" = x"no"; then
Andreas Marek's avatar
Andreas Marek committed
161 162 163 164 165 166
  AX_CHECK_COMPILE_FLAG([-std=c11], [
    c11_standard=yes
  ], [
    echo "C compiler cannot compile C11 code"
    exit -1
  ])
Andreas Marek's avatar
Andreas Marek committed
167
  if test x"$c11_standard" = x"yes"; then
Andreas Marek's avatar
Andreas Marek committed
168 169 170
    CFLAGS+=" -std=c11"
  fi
fi
171

172 173
AX_EXT

Andreas Marek's avatar
Andreas Marek committed
174 175 176 177 178
dnl heterogenous-cluster-support
AC_MSG_CHECKING(whether heterogenous-cluster-support should be enabled)
AC_ARG_ENABLE([heterogenous-cluster-support],
              AS_HELP_STRING([--heterogenous-cluster-support],
                             [allow ELPA to automatically switch to a kernel supported on all CPUs of a cluster (only works for Intel CPUs at the moment), default no. Activate only if necessary has a performance penalty! This feature is exerpimental!]),
179 180
              [
	       if test x"$enableval" = x"yes"; then
Andreas Marek's avatar
Andreas Marek committed
181
	         enable_heterogenous_cluster_support=yes
182
	       else
Andreas Marek's avatar
Andreas Marek committed
183
	         enable_heterogenous_cluster_support=no
184 185
	       fi
	       ],
Andreas Marek's avatar
Andreas Marek committed
186 187 188 189
              [enable_heterogenous_cluster_support="no"])
AC_MSG_RESULT([$enable_heterogenous_cluster_support])
if test x"${enable_heterogenous_cluster_support}" = x"yes"; then
  AC_DEFINE([HAVE_HETEROGENOUS_CLUSTER_SUPPORT], [1], [automatically support clusters with different Intel CPUs])
190
fi
Andreas Marek's avatar
Andreas Marek committed
191
AM_CONDITIONAL([HAVE_HETEROGENOUS_CLUSTER_SUPPORT],[test x"$enable_heterogenous_cluster_support" = x"yes"])
192

Andreas Marek's avatar
Andreas Marek committed
193 194 195 196 197
dnl 64bit integer support for BLACS/LAPACK/SCALAPACK support
dnl first long int
AC_CHECK_SIZEOF([long int])
size_of_long_int="${ac_cv_sizeof_long_int}"

198
dnl then 64bit blas
Andreas Marek's avatar
WIP  
Andreas Marek committed
199
AC_MSG_CHECKING(whether 64bit integers should be used for math libraries (BLAS/LAPACK/SCALAPACK))
200 201
AC_ARG_ENABLE([64bit-integer-math-support],
              AS_HELP_STRING([--64bit-integer-math-support],
Andreas Marek's avatar
WIP  
Andreas Marek committed
202 203 204
                             [allows to link against the 64bit integer versions of the math libraries BLAS, LAPACK, and SCALAPACK]),
              [
	       if test x"$enableval" = x"yes"; then
205
	         enable_64bit_integer_math_support=yes
Andreas Marek's avatar
WIP  
Andreas Marek committed
206
	       else
207
	         enable_64bit_integer_math_support=no
Andreas Marek's avatar
WIP  
Andreas Marek committed
208 209
	       fi
	       ],
210 211 212
              [enable_64bit_integer_math_support="no"])
AC_MSG_RESULT([$enable_64bit_integer_math_support])
if test x"${enable_64bit_integer_math_support}" = x"yes"; then
213 214 215 216
  dnl at least INTEL MPI does _NOT_ support 64BIT integer mode  for C thus disable C tests in this Case
  if test x"${enable_c_tests}" = x"yes"; then
     AC_MSG_ERROR([You cannot both define 64bit integer support and C tests. Reconfigure!])
  fi
Andreas Marek's avatar
Andreas Marek committed
217 218 219 220 221 222 223
  dnl check whether long int is the correct data-type in C
  if test x"${size_of_long_int}" = x"8"; then
    echo "Found C data-type \"long int\" with 8 bytes"
  else
    AC_MSG_ERROR([The C data-type "long int" is only ${size_of_long_int} bytes; Needed is 8 bytes])
  fi

224
  AC_DEFINE([HAVE_64BIT_INTEGER_MATH_SUPPORT], [1], [allow to link against the 64bit integer versions of math libraries])
Andreas Marek's avatar
WIP  
Andreas Marek committed
225
fi
226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246
AM_CONDITIONAL([HAVE_64BIT_INTEGER_MATH_SUPPORT],[test x"$enable_64bit_integer_math_support" = x"yes"])

dnl then 64bit blas
AC_MSG_CHECKING(whether 64bit integers should be used for the MPI library)
AC_ARG_ENABLE([64bit-integer-mpi-support],
              AS_HELP_STRING([--64bit-integer-mpi-support],
                             [allows to link against the 64bit integer versions of the MPI library]),
              [
	       if test x"$enableval" = x"yes"; then
	         enable_64bit_integer_mpi_support=yes
	       else
	         enable_64bit_integer_mpi_support=no
	       fi
	       ],
              [enable_64bit_integer_mpi_support="no"])
AC_MSG_RESULT([$enable_64bit_integer_mpi_support])
if test x"${enable_64bit_integer_mpi_support}" = x"yes"; then
  AC_DEFINE([HAVE_64BIT_INTEGER_MPI_SUPPORT], [1], [allow to link against the 64bit integer versions of the MPI library])
fi
AM_CONDITIONAL([HAVE_64BIT_INTEGER_MPI_SUPPORT],[test x"$enable_64bit_integer_mpi_support" = x"yes"])

Andreas Marek's avatar
WIP  
Andreas Marek committed
247 248


249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271
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])

272
AC_PROG_INSTALL
273 274
AM_PROG_AR
AM_PROG_AS
275
AC_PROG_CC_C99
276
AM_PROG_CC_C_O
277
AC_LANG_POP([C])
Andreas Marek's avatar
Andreas Marek committed
278 279

# Fortran
280
AC_LANG_PUSH([Fortran])
Andreas Marek's avatar
Andreas Marek committed
281
m4_include([m4/ax_prog_fc_mpi.m4])
282 283 284 285 286 287
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
288

289
AC_FC_SRCEXT([F90])
290 291 292 293 294
AC_FC_FREEFORM
AC_FC_MODULE_FLAG
AC_FC_MODULE_OUTPUT_FLAG
AC_FC_LIBRARY_LDFLAGS

295

296
if test x"${enable_openmp}" = x"yes"; then
297 298 299 300 301
  AX_ELPA_OPENMP
  if test "$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"
302 303
fi

304 305
dnl check which MPI binray invokes a MPI job
if test x"$with_mpi" = x"yes"; then
Andreas Marek's avatar
Andreas Marek committed
306
  AC_CHECK_PROGS([MPI_BINARY], [mpiexec.hydra mpiexec mpirun poe runjob srun aprun], [no])
307
  if test x"$MPI_BINARY" = x"no"; then
Andreas Marek's avatar
Andreas Marek committed
308
    AC_MSG_ERROR([Could not find either of the MPI binaries: mpiexec.hydra, mpiexec, mpirun, poe, runjob, srun, aprun])
309 310 311
  fi
fi

312 313 314
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)
315
AC_ARG_ENABLE([redirect],
316 317
              [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
318 319 320 321 322 323 324
              [
               if test x"$enableval" = x"yes"; then
                 enable_redirect=yes
               else
                 enable_redirect=no
               fi
	       ],
325
              [enable_redirect=no])
326 327
AC_MSG_RESULT([${enable_redirect}])

328 329 330 331 332 333 334 335 336 337
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}])


338 339
dnl redirect
if test x"${enable_redirect}" = x"yes"; then
340 341
  AC_DEFINE([HAVE_REDIRECT], [1], [Redirect stdout and stderr of test programs per MPI tasks to a file])
fi
342 343 344
AM_CONDITIONAL([HAVE_REDIRECT],[test x"$enable_redirect" = x"yes"])

dnl build with ftimings support
345

Andreas Marek's avatar
Andreas Marek committed
346
AC_ARG_ENABLE([timings],
347 348
              [AS_HELP_STRING([--disable-timings],
                              [more detailed timing, default yes])],
Andreas Marek's avatar
Andreas Marek committed
349 350 351 352 353 354 355
              [
               if test x"$enableval" = x"yes"; then
                 enable_timings=yes
               else
                 enable_timings=no
               fi
	       ],
356
              [enable_timings=yes])
357 358 359 360

if test x"${enable_timings}" = x"yes"; then
  AC_DEFINE([HAVE_DETAILED_TIMINGS], [1], [Enable more timing])
fi
361
AM_CONDITIONAL([HAVE_DETAILED_TIMINGS], [test x"$enable_timings" = x"yes"])
362 363

dnl PAPI for ftimings
364
AC_LANG_PUSH([C])
365
AC_ARG_WITH([papi],
366 367
            [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
368 369 370 371 372 373 374
            [
               if test x"$enableval" = x"yes"; then
                 with_papi=yes
               else
                 with_papi=no
               fi
	     ],
375
            [with_papi="no"])
376 377
if test x"${enable_timings}" = x"yes"; then
  if test x"$with_papi" = x"yes" ; then
378
    AC_SEARCH_LIBS([PAPI_library_init], [papi], [papi_found=yes], [papi_found=no])
379 380
    if test x"$papi_found" = x"no" ; then
      AC_MSG_ERROR(["Could not find usable PAPI installation, please install or adjust CFLAGS, LDFLAGS"])
381 382 383 384
    fi
    AC_DEFINE([HAVE_LIBPAPI], [1], [Use the PAPI library])
  fi
fi
385
AC_LANG_POP([C])
386

Pavel Kus's avatar
Pavel Kus committed
387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431
dnl Likwid
AC_LANG_PUSH([Fortran])
AC_ARG_WITH([likwid],
            [AS_HELP_STRING([--with-likwid=[[yes|no(default)|PATH]]],
                            [Use Likwid to measure performance in some parts of the library])],
            [with_likwid="$withval"],
            [with_likwid="no"])

if test x"$with_likwid" != x"no" ; then
  if test -d $with_likwid/lib ; then
    LDFLAGS="-L$with_likwid/lib $LDFLAGS"
  fi
  if test -d $with_likwid/lib64 ; then
    LDFLAGS="-L$with_likwid/lib64 $LDFLAGS"
  fi
  if test -d $with_likwid/include ; then
    FCFLAGS="-I$with_likwid/include $FCFLAGS"
  fi
  AC_SEARCH_LIBS([likwid_markerInit], [likwid], [liblikwid_found="yes"], [liblikwid_found="no"])
  if test x"$liblikwid_found" = x"no" ; then
    AC_MSG_ERROR([Could not find a usable likwid library, please adjust LDFLAGS])
  fi
  AC_MSG_CHECKING([whether we can use the likwid module in a Fortran program])
  AC_COMPILE_IFELSE([
       program foo
       use likwid

       implicit none

       call likwid_markerInit()
       call likwid_markerThreadInit()

       call likwid_markerStartRegion("foobar")
       call likwid_markerStopRegion("foobar")

       call likwid_markerClose()
       end
    ],
    [AC_MSG_RESULT([yes])],
    [AC_MSG_RESULT([no])
     AC_MSG_ERROR([Could not compile a Fortran program using the likwid module, adjust FCFLAGS])])
  AC_DEFINE([HAVE_LIKWID], [1], [Use likwid])
fi
AC_LANG_POP([Fortran])

432 433 434
save_FCFLAGS=$FCFLAGS
save_LDFLAGS=$LDFLAGS

435 436 437
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])

438 439
FCFLAGS="$FCFLAGS $SCALAPACK_FCFLAGS"
LDFLAGS="$LDFLAGS $SCALAPACK_LDFLAGS"
440

441
dnl check whether fortran error_unit is defined
442
AC_MSG_CHECKING([whether Fortran module iso_fortran_env is available])
443
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
444
  program test_error_unit
445
    use iso_fortran_env, only : error_unit
446 447 448 449 450 451 452 453
    implicit none

    write(error_unit,*) "error_unit is defined"
  end program
])],
  [can_use_iso_fortran_env=yes],
  [can_use_iso_fortran_env=no]
)
454
AC_MSG_RESULT([${can_use_iso_fortran_env}])
455 456 457 458
if test x"${can_use_iso_fortran_env}" = x"yes" ; then
 AC_DEFINE([HAVE_ISO_FORTRAN_ENV],[1],[can use module iso_fortran_env])
fi

459

460 461
dnl check whether one can link with specified MKL (desired method)
AC_MSG_CHECKING([whether we can compile a Fortran program using MKL])
462
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
463
  program test_mkl
464
    use mkl_service
465 466 467 468 469 470 471 472 473 474 475 476
    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"$can_compile_with_mkl" = x"yes" ; then
  AC_MSG_CHECKING([whether we can link a Fortran program with MKL])
477
  AC_LINK_IFELSE([AC_LANG_SOURCE([
478
    program test_mkl
479
      use mkl_service
480 481 482 483 484
      character*198 :: string
      call mkl_get_version_string(string)
      write(*,'(a)') string
    end program
  ])],
Andreas Marek's avatar
Andreas Marek committed
485 486
    [have_mkl=yes],
    [have_mkl=no]
487
  )
Andreas Marek's avatar
Andreas Marek committed
488
  AC_MSG_RESULT([${have_mkl}])
489 490 491
fi

dnl if not mkl, check all the necessary individually
492
if test x"${have_mkl}" = x"yes" ; then
493 494 495 496
  WITH_MKL=1
else

  dnl first check blas
497
  AC_SEARCH_LIBS([dgemm],[openblas satlas blas],[have_blas=yes],[have_blas=no])
Andreas Marek's avatar
Andreas Marek committed
498 499
  AC_MSG_CHECKING([whether we can link a program with a blas lib])
  AC_MSG_RESULT([${have_blas}])
500

501
  if test x"${have_blas}" = x"no" ; then
502
    AC_MSG_ERROR([could not link with blas: specify path])
503
  fi
504
  dnl now lapack
Andreas Marek's avatar
Andreas Marek committed
505 506 507
  AC_SEARCH_LIBS([dlarrv],[lapack],[have_lapack=yes],[have_lapack=no])
  AC_MSG_CHECKING([whether we can link a program with a lapack lib])
  AC_MSG_RESULT([${have_lapack}])
508

509
  if test x"${have_lapack}" = x"no" ; then
510
    AC_MSG_ERROR([could not link with lapack: specify path])
511
  fi
Andreas Marek's avatar
Andreas Marek committed
512

513
  if test x"${with_mpi}" = x"yes"; then
514
    dnl test whether scalapack already contains blacs
515
    scalapack_libs="mpiscalapack scalapack scalapack-openmpi"
516 517 518 519 520
    old_LIBS="$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
521
	       
522 523 524 525 526
      AC_MSG_RESULT([${blacs_in_scalapack}])
      if test x"${blacs_in_scalapack}" = x"yes"; then
        break
      fi
    done
527

528 529
    if test x"${blacs_in_scalapack}" = x"no"; then
      LIBS="${old_LIBS}"
530

531 532
      dnl Test for stand-alone blacs
      AC_SEARCH_LIBS([bi_f77_init],[mpiblacsF77init],[],[],[-lmpiblacs])
533 534 535 536 537 538

      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
539
      AC_SEARCH_LIBS([blacs_gridinit],[mpiblacs blacs],[have_blacs=yes],[have_blacs=no])
Andreas Marek's avatar
Andreas Marek committed
540

541 542 543
      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
544
    fi
545

546
    AC_SEARCH_LIBS([pdtran],[$scalapack_libs],[have_scalapack=yes],[have_scalapack=no])
Andreas Marek's avatar
Andreas Marek committed
547

548 549 550
    if test x"${have_scalapack}" = x"no" ; then
      AC_MSG_ERROR([could not link with scalapack: specify path])
    fi
551 552 553 554
  fi

  dnl check whether we can link alltogehter
  AC_MSG_CHECKING([whether we can link a Fortran program with all blacs/scalapack])
555
  AC_LINK_IFELSE([AC_LANG_SOURCE([
556 557
    program dgemm_test

558 559
      integer , parameter:: M = 4, N = 3, K = 2
      real :: A(M,K), B(K,N), C(M,N)
560

561
      call dgemm('N','N',M,N,K,1.0,A,M,B,K,0.0,C,M)
562 563 564 565 566 567 568 569

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

570
   if test x"${can_link_with_blacs_scalapack}" = x"yes" ; then
571 572
     WITH_BLACS=1
   else
573
   AC_MSG_ERROR([We can neither link with MKL or another Scalpack. Please specify SCALAPACK_LDFLAGS and SCALAPACK_FCFLAGS!])
574 575 576
   fi
fi

577 578 579 580
dnl important: reset them again!
FCFLAGS=$save_FCFLAGS
LDFLAGS=$save_LDFLAGS

581

Andreas Marek's avatar
Andreas Marek committed
582 583 584 585
dnl check for intrinsic fortran function of 2003 standard
AC_MSG_CHECKING([whether we can use the intrinsic Fortran function "get_environment_variable"])


586
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
Andreas Marek's avatar
Andreas Marek committed
587 588 589 590 591 592 593 594 595
  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([${fortran_can_check_environment}])
596 597 598
if test x"${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
599

600

601 602
dnl check whether BAND_TO_FULL_BLOCKING is set
AC_MSG_CHECKING(whether BAND_TO_FLULL_BLOCKING is requested)
603
AC_ARG_ENABLE(band-to-full-blocking,[AS_HELP_STRING([--disable-band-to-full-blocking],
604
                                                    [build ELPA2 with blocking in band_to_full (default: enabled)])],
Andreas Marek's avatar
Andreas Marek committed
605 606 607 608 609 610 611
              [
               if test x"$enableval" = x"yes"; then
                 enable_band_to_full_blocking=yes
               else
                 enable_band_to_full_blocking=no
               fi
	       ],
612 613
	      [enable_band_to_full_blocking="yes"])
AC_MSG_RESULT([${enable_band_to_full_blocking}])
614

615 616
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
617
       AC_DEFINE([BAND_TO_FULL_BLOCKING], [1], [use blocking in trans_ev_band_to_full])
618 619
fi

620 621 622 623 624 625 626

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])

627

628
dnl setup nvcc flags and use them in later tests
629 630 631
user_sets_gpu_compute_capability="no"
AC_MSG_CHECKING(whether a GPU compute capability is specified)
AC_ARG_WITH([GPU-compute-capability],
632 633 634
            [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"])
635 636
AC_MSG_RESULT([${user_sets_gpu_compute_capability}])

637

638 639 640 641 642 643 644 645 646 647 648
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
649

650 651
dnl Test possibility of 'use mpi', if requested
if test x"${with_mpi}" = x"yes" ; then
652 653
  AC_ARG_ENABLE([mpi-module],
                AS_HELP_STRING([--disable-mpi-module],
Pavel Kus's avatar
Pavel Kus committed
654
                               [do not use the Fortran MPI module, get interfaces by 'include "mpif.h']),
Andreas Marek's avatar
Andreas Marek committed
655 656 657 658 659 660 661
                [
                 if test x"$enableval" = x"yes"; then
                   enable_mpi_module=yes
                 else
                   enable_mpi_module=no
                 fi
		 ],
662 663
                [enable_mpi_module=yes])
  if test x"${enable_mpi_module}" = x"yes" ; then
664 665 666 667 668 669 670 671 672 673 674 675 676 677 678
    AC_MSG_CHECKING(whether Fortran mpi module can be used)
    AC_COMPILE_IFELSE([AC_LANG_SOURCE([
      program test_mpi_module
        use mpi
        real :: time
        time = MPI_WTime()
      end program
    ])],
      [can_use_fortran_mpi_module=yes],
      [can_use_fortran_mpi_module=no]
    )
    AC_MSG_RESULT([${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
679
      AC_MSG_ERROR([Could not compile a Fortran program with an 'use mpi' statement. You can try again with --disable-mpi-module])
680
    fi
681
  fi
Andreas Marek's avatar
Andreas Marek committed
682
fi
683
AC_LANG_POP([Fortran])
Andreas Marek's avatar
Andreas Marek committed
684

685 686
dnl Assemble the list of kernels to build
m4_pattern_forbid([elpa_m4])
Andreas Marek's avatar
Andreas Marek committed
687

688 689 690
m4_define(elpa_m4_generic_kernels, [
        real_generic
        real_generic_simple
Andreas Marek's avatar
Andreas Marek committed
691
        real_generic_simple_block4
692
        real_generic_simple_block6
693 694 695
        complex_generic
        complex_generic_simple
])
696

697 698 699 700
m4_define(elpa_m4_sse_assembly_kernels, [
        real_sse_assembly
        complex_sse_assembly
])
701

702 703 704 705 706 707 708
m4_define(elpa_m4_sse_kernels, [
        real_sse_block2
        real_sse_block4
        real_sse_block6
        complex_sse_block1
        complex_sse_block2
])
709

710 711 712 713 714 715
m4_define(elpa_m4_sparc64_kernels, [
        real_sparc64_block2
        real_sparc64_block4
        real_sparc64_block6
])

716 717 718 719 720 721
m4_define(elpa_m4_neon_arch64_kernels, [
        real_neon_arch64_block2
        real_neon_arch64_block4
        real_neon_arch64_block6
])

722 723 724 725 726 727
m4_define(elpa_m4_vsx_kernels, [
        real_vsx_block2
        real_vsx_block4
        real_vsx_block6
])

728 729 730 731 732 733 734
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
735

736 737 738 739 740 741 742
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
743

744 745 746 747 748 749 750
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
751

752 753 754 755
m4_define(elpa_m4_bgp_kernels, [
        real_bgp
        complex_bgp
])
Andreas Marek's avatar
Andreas Marek committed
756

757 758 759 760
m4_define(elpa_m4_bgq_kernels, [
        real_bgq
        complex_bgq
])
Andreas Marek's avatar
Andreas Marek committed
761

762 763 764 765
#m4_define(elpa_m4_gpu_kernels, [
#        real_gpu
#        complex_gpu
#])
766

767
m4_define(elpa_m4_kernel_types, [generic sparc64 neon_arch64 vsx sse sse_assembly avx avx2 avx512 bgp bgq])
768

769 770 771 772
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
773

774 775 776 777
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
778

779 780 781 782
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) ]))
783

784 785 786 787 788 789 790 791 792 793 794 795 796
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]
        ])
])
797

798 799
dnl Modify list of kernels with configure arguments
ELPA_SELECT_KERNELS([generic],[enable])
800
ELPA_SELECT_KERNELS([sparc64],[disable])
801
ELPA_SELECT_KERNELS([neon_arch64],[disable])
802
ELPA_SELECT_KERNELS([vsx],[disable])
803 804 805 806
ELPA_SELECT_KERNELS([sse],[enable])
ELPA_SELECT_KERNELS([sse_assembly],[enable])
ELPA_SELECT_KERNELS([avx],[enable])
ELPA_SELECT_KERNELS([avx2],[enable])
807
ELPA_SELECT_KERNELS([avx512],[enable])
808
#ELPA_SELECT_KERNELS([gpu],[disable])
809 810 811 812 813 814
ELPA_SELECT_KERNELS([bgp],[disable])
ELPA_SELECT_KERNELS([bgq],[disable])

m4_foreach_w([elpa_m4_kind],[real complex],[
        default_[]elpa_m4_kind[]_kernel=""
])
815

816
if test x"${enable_bgp}" = x"yes" -o x"$enable_bgq" = x"yes"; then
817
        m4_foreach_w([elpa_m4_kernel], elpa_m4_sparc64_kernels elpa_m4_neon_arch64_kernels elpa_m4_vsx_kernels elpa_m4_sse_kernels elpa_m4_avx_kernels elpa_m4_avx2_kernels elpa_m4_avx512_kernels, [
818 819 820 821 822 823 824 825 826 827 828 829
                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:]
830 831
                 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[_$withval"],[fixed_]elpa_m4_kind[_kernel=""])
832
        if test -n "$fixed_[]elpa_m4_kind[]_kernel" ; then
833
                found="no"
834 835 836
                m4_foreach_w([elpa_m4_otherkernel],m4_expand(elpa_m4_[]elpa_m4_kind[]_kernels),[
                        if test "$fixed_]elpa_m4_kind[_kernel" = "]elpa_m4_otherkernel[" ; then
                                use_[]elpa_m4_otherkernel[]=yes
837
                                found="yes"
838 839 840 841
                        else
                                use_[]elpa_m4_otherkernel[]=no
                        fi
                ])
842 843 844
                if test x"$found" = x"no" ; then
                        AC_MSG_ERROR([Invalid kernel "$fixed_]elpa_m4_kind[_kernel" specified for --with-fixed-]elpa_m4_kind[-kernel])
                fi
845 846 847 848
                default_[]elpa_m4_kind[]_kernel="$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
])
849

850 851 852 853 854 855 856 857 858 859
#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
#        ])
#        use_real_gpu=yes
#        use_complex_gpu=yes
#fi
860

861

862 863 864 865 866 867 868 869 870 871 872 873 874 875 876
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
])
877
m4_foreach_w([elpa_m4_arch],[sparc64 neon_arch64 vsx sse avx avx2 avx512],[
878 879 880 881
        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])
])
882

883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902
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
])
903

904

905 906 907
dnl the list of kernels is now assembled
dnl choosing a default kernel

908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931
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
])



932 933 934
m4_foreach_w([elpa_m4_kind],[real complex],[
        m4_foreach_w([elpa_m4_kernel],
                     m4_foreach_w([elpa_m4_cand_kernel],
935
                                  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_neon_arch64_kernels elpa_m4_vsx_kernels elpa_m4_generic_kernels,
936 937 938 939 940 941 942 943 944 945 946 947 948
                                  [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 | \
949
                                                                perl -pe 's/^[[^,]]*, *//; s/,.*//;'`
950 951
        AC_SUBST([ELPA_2STAGE_]m4_toupper(elpa_m4_kind)[_DEFAULT])
])
Andreas Marek's avatar
Andreas Marek committed
952

953 954 955 956 957 958 959
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 }
960
AC_LANG_PUSH([C])
961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981

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

982 983 984
if test x"${need_sparc64}" = x"yes"; then
  AC_MSG_CHECKING(whether we can compile SPARC64 with intrinsics in C)
  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
Andreas Marek's avatar
Andreas Marek committed
985 986
#include <fjmfunc.h>
#include <emmintrin.h>
987
int main(int argc, char **argv) {
Andreas Marek's avatar
Andreas Marek committed
988 989
  __m128d  tau1;
  __m128d h1 = _fjsp_neg_v2r8(tau1);
990 991 992 993 994 995 996 997 998 999 1000 1001
  return 0;
}
    ])],
    [can_compile_sparc64=yes],
    [can_compile_sparc64=no]
  )
  AC_MSG_RESULT([${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
1002

1003 1004 1005 1006 1007 1008
if test x"${need_neon_arch64}" = x"yes"; then
  AC_MSG_CHECKING(whether we can compile NEON ARCH64 with intrinsics in C)
  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#include <arm_neon.h>
int main(int argc, char **argv) {
  __Float64x2_t  x1, x2, x3, x4;
Andreas Marek's avatar
Andreas Marek committed
1009
  x4 = vfmaq_f64(x1, x2, x3);
1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023
  return 0;
}
    ])],
    [can_compile_neon_arch64=yes],
    [can_compile_neon_arch64=no]
  )
  AC_MSG_RESULT([${can_compile_neon_arch64}])
  if test x"$can_compile_neon_arch64" != x"yes"; then
    AC_MSG_ERROR([Could not compile test program, try with --disable-neon_arch64, or adjust the C compiler or CFLAGS])
  fi
  AC_DEFINE([HAVE_NEON_ARCH64_SSE],[1],[NEON_ARCH64 intrinsics are supported on this CPU])
fi


1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041
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
1042 1043 1044
fi


1045 1046
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
1047

Andreas Marek's avatar
Andreas Marek committed
1048
  $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
1049

1050 1051 1052 1053 1054 1055 1056 1057
  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
1058
    AC_MSG_ERROR([Could not compile test program, try with --disable-sse-assembly, or adjust the C compiler or CFLAGS. Possibly (some of) the flags " $SIMD_FLAGS " solve this issue])
1059
  fi
1060

1061 1062
  if test x"${want_single_precision}" = x"yes" ; then
    AC_MSG_CHECKING(whether single-precision SSE assembly kernels can be compiled)
1063

Andreas Marek's avatar
Andreas Marek committed
1064
    $CC $CFLAGS -c $srcdir/src/elpa2/kernels/asm_x86_64_single_precision.s -o conftest.o 2>&5
1065

1066 1067 1068 1069 1070 1071 1072 1073
    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
1074
      AC_MSG_ERROR([Could not compile test program, try with --disable-sse-assembly, or adjust the C compiler or CFLAGS. Possibly (some of) the flags " $SIMD_FLAGS " solve this issue])
1075 1076
    fi
  fi
Andreas Marek's avatar
Andreas Marek committed
1077 1078 1079 1080
fi



1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096
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
1097
    AC_MSG_ERROR([Could not compile a test program with AVX, try with --disable-avx, or adjust the C compiler or CFLAGS. Possibly (some of) the flags " $SIMD_FLAGS " solve this issue])
1098 1099
  fi
  AC_DEFINE([HAVE_AVX],[1],[AVX is supported on this CPU])
1100 1101 1102
fi


1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118
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
1119
    AC_MSG_ERROR([Could not compile a test program with AVX2, try with --disable-avx2, or adjust the C compiler or CFLAGS.  Possibly (some of) the flags " $SIMD_FLAGS " solve this issue])
1120 1121
  fi
  AC_DEFINE([HAVE_AVX2],[1],[AVX2 is supported on this CPU])
1122 1123
fi

1124

1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140
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
1141
    AC_MSG_ERROR([Could not compile a test program with AVX512, adjust the C compiler or CFLAGS. Possibly (some of) the flags " $SIMD_FLAGS " solve this issue])
1142 1143
  fi
  AC_DEFINE([HAVE_AVX512],[1],[AVX512 is supported on this CPU])
Andreas Marek's avatar
Andreas Marek committed
1144 1145

  if test x"$can_compile_avx512" = x"yes"; then
1146
    AC_MSG_CHECKING([whether we compile for Xeon])
1147
    AC_COMPILE_IFELSE([AC_LANG_SOURCE([
Andreas Marek's avatar
Andreas Marek committed
1148 1149 1150
     #include <x86intrin.h>
     int main(int argc, char **argv){
     __m512d sign;
1151
     __m512d h1_real;
Andreas Marek's avatar
Andreas Marek committed
1152 1153 1154 1155 1156 1157 1158 1159

     __m512d x1 = _mm512_xor_pd(h1_real, sign);
     return 0;
     }
     ])],
     [can_compile_avx512_xeon=yes],
     [can_compile_avx512_xeon=no]
    )
1160 1161 1162
    AC_MSG_RESULT([${can_compile_avx512_xeon}])

    AC_MSG_CHECKING([whether we compile for Xeon PHI])
1163
    AC_COMPILE_IFELSE([AC_LANG_SOURCE([
Andreas Marek's avatar
Andreas Marek committed
1164 1165 1166 1167
     #include <x86intrin.h>
     int main(int argc, char **argv){
     __m512d sign;
     __m512d h1;
Andreas Marek's avatar
Andreas Marek committed
1168
     __m512d h2_real;
Andreas Marek's avatar
Andreas Marek committed
1169

1170
     __m512d x1 = (__m512d) _mm512_xor_epi64((__m512i) h2_real, (__m512i) sign);
Andreas Marek's avatar
Andreas Marek committed
1171 1172 1173 1174 1175 1176
     return 0;
     }
     ])],
     [can_compile_avx512_xeon_phi=yes],
     [can_compile_avx512_xeon_phi=no]
    )
1177 1178
    AC_MSG_RESULT([${can_compile_avx512_xeon_phi}])

1179 1180 1181 1182 1183 1184
    # 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
1185
	  echo "Xeon PHI found ... disabling AVX512 Xeon"
1186 1187 1188 1189 1190
          can_compile_avx512_xeon=no
        fi
      fi
    fi

Andreas Marek's avatar
Andreas Marek committed
1191 1192 1193 1194 1195 1196 1197 1198 1199 1200
    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
1201
fi
1202
AC_LANG_POP([C])
1203 1204


1205 1206 1207 1208 1209 1210 1211
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)
1212

1213 1214 1215 1216 1217 1218 1219 1220 1221
    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
1222 1223
fi

Andreas Marek's avatar
Andreas Marek committed
1224

1225 1226 1227 1228 1229 1230 1231
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
1232

1233 1234 1235 1236 1237 1238 1239 1240 1241
    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
1242
fi
1243
AC_LANG_POP([Fortran])
1244

1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262

AC_MSG_CHECKING(whether GPU version should be used)
AC_ARG_ENABLE([gpu],
                AS_HELP_STRING([--enable-gpu],
                               [do use GPU version]),
                               [if test x"$enableval" = x"yes"; then
                                  use_gpu=yes
                                else
                                  use_gpu=no
                                fi],
              [use_gpu=no])
AC_MSG_RESULT([${use_gpu}])
if test x"${use_gpu}" = x"yes" ; then
  need_gpu=yes
  use_real_gpu=yes
  use_complex_gpu=yes
fi

1263 1264 1265 1266 1267 1268 1269 1270
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)
1271

1272 1273 1274 1275 1276
  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
1277

1278 1279 1280 1281 1282 1283 1284 1285 1286 1287
  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])
1288 1289
fi

1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304
AC_MSG_CHECKING(whether GPU memory debugging should be enabled)
AC_ARG_ENABLE([gpu-memory-debug],
                AS_HELP_STRING([--enable-gpu-memory-debug],
                               [Output information on GPU memory to be processed by utils/memory/check_memory.py]),
                               [if test x"$enableval" = x"yes"; then
                                  enable_gpu_memory_debug=yes
                                else
                                  enable_gpu_memory_debug=no
                                fi],
              [enable_gpu_memory_debug=no])
AC_MSG_RESULT([${enable_gpu_memory_debug}])
if test x"${enable_gpu_memory_debug}" = x"yes" ; then
  AC_DEFINE([DEBUG_CUDA],[1],[enable CUDA debugging])
fi

Andreas Marek's avatar
Andreas Marek committed
1305

1306 1307 1308 1309
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])
1310 1311 1312
    kernel_defined=1
  else
    kernel_defined=0
1313
  fi
1314 1315
  [ELPA_2STAGE_]m4_toupper(elpa_m4_kernel)[_COMPILED]=$kernel_defined
  AC_SUBST([ELPA_2STAGE_]m4_toupper(elpa_m4_kernel)[_COMPILED])
1316
])
Andreas Marek's avatar
Andreas Marek committed
1317

1318 1319
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
1320
  AC_DEFINE([WITH_GPU_VERSION],[1],[enable GPU support])
1321
  #AC_DEFINE([WITH_GPU_KERNEL],[1],[GPU kernel should be build])
1322 1323
  ELPA_2STAGE_COMPLEX_GPU_COMPILED=1
  ELPA_2STAGE_REAL_GPU_COMPILED=1
1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346

  AC_MSG_CHECKING(whether --enable-nvtx is specified)
  AC_ARG_ENABLE([nvtx],
                AS_HELP_STRING([--enable-nvtx],
                               [build and install nvtx wrapper for profiling th GPU version, default no.]),
                [
                 if test x"$enableval" = x"yes"; then
                   enable_nvtx=yes
                 else
                   enable_nvtx=no
                 fi
                 ],
                [enable_nvtx=no])
  AC_MSG_RESULT([${enable_nvtx}])
  if test x"${enable_nvtx}" = x"yes"; then
    AC_DEFINE([WITH_NVTX],[1],[enable NVTX support])
    AC_LANG_PUSH([C])
    AC_SEARCH_LIBS([nvtxRangePop],[nvToolsExt],[have_nvtoolsext=yes],[have_nvtoolsext=no])
    if test x"${have_nvtoolsext}" = x"no"; then
      AC_MSG_ERROR([Could not link nvToolsExt; try to set the cuda-path or disable GPU support ])
    fi
    AC_LANG_POP([C])
  fi
1347 1348 1349
else
  ELPA_2STAGE_COMPLEX_GPU_COMPILED=0
  ELPA_2STAGE_REAL_GPU_COMPILED=0
Andreas Marek's avatar
Andreas Marek committed
1350
fi
1351 1352
AC_SUBST([ELPA_2STAGE_COMPLEX_GPU_COMPILED])
AC_SUBST([ELPA_2STAGE_REAL_GPU_COMPILED])
Andreas Marek's avatar
Andreas Marek committed
1353

1354 1355
LT_INIT

1356 1357 1358 1359 1360 1361
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
1362
AC_MSG_CHECKING(whether assumed size Fortran arrays should be used)
1363
AC_ARG_ENABLE([assumed-size],
1364
                AS_HELP_STRING([--disable-assumed-size],
1365 1366
                               [do NOT use assumed-size Fortran arrays]),
                               [if test x"$enableval" = x"yes"; then
Andreas Marek's avatar
Andreas Marek committed
1367
                                  USE_ASSUMED_SIZE=yes
1368 1369 1370
                                else
                                  USE_ASSUMED_SIZE=no
                                fi],
1371
              [USE_ASSUMED_SIZE=yes])
1372 1373 1374
AC_MSG_RESULT([${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
1375
  AC_DEFINE([USE_ASSUMED_SIZE],[1],[for performance reasons use assumed size Fortran arrays, even if not debuggable])
1376 1377
fi

Andreas Marek's avatar
Andreas Marek committed
1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388
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"$enableval" = x"yes"; then
			        enable_fortran2008_features=yes
		              else
			        enable_fortran2008_features=no
			      fi
			      ],
Andreas Marek's avatar
Andreas Marek committed
1389
              [enable_fortran2008_features=yes])
Andreas Marek's avatar
Andreas Marek committed
1390 1391 1392 1393 1394 1395
AC_MSG_RESULT([${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
1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431
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
1432 1433 1434 1435
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.]),
Andreas Marek's avatar
Andreas Marek committed
1436
			     [if test x"$enableval" = x"yes"; then
Andreas Marek's avatar
Andreas Marek committed
1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454
			        enable_kcomputer=yes
		              else
				enable_kcomputer=no
			      fi],
              [enable_kcomputer=no])
AC_MSG_RESULT([${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

Andreas Marek's avatar
Andreas Marek committed
1455 1456 1457 1458
AC_MSG_CHECKING(whether we build for NEC SX-Auroa)
AC_ARG_ENABLE([SX-Aurora],
              AS_HELP_STRING([--enable-SX-Aurora],
                             [enable builds on SX-Aurora, default no.]),
Andreas Marek's avatar
Andreas Marek committed
1459
			     [if test x"$enableval" = x"yes"; then
Andreas Marek's avatar
Andreas Marek committed
1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477
			        enable_sxaurora=yes
		              else
				enable_sxaurora=no
			      fi],
              [enable_kcomputer=no])
AC_MSG_RESULT([${enable_sxaurora}])
AM_CONDITIONAL([BUILD_KCOMPUTER],[test x"$enable_sxaurora" = x"yes"])
if test x"${enable_sxaurora}" = x"yes"; then
 AC_DEFINE([BUILD_SXAURORA], [1], [build for SX-Aurora])
 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 SX-Aurora you have to switch off Fortran 2008 features!)
  fi
fi

1478 1479 1480
if test x"${want_single_precision}" = x"yes" ; then
  AC_DEFINE([WANT_SINGLE_PRECISION_REAL],[1],[build also single-precision for real calculation])
  AC_DEFINE([WANT_SINGLE_PRECISION_COMPLEX],[1],[build also single-precision for complex calculation])
1481
fi
1482 1483
AM_CONDITIONAL([WANT_SINGLE_PRECISION_REAL],[test x"$want_single_precision" = x"yes"])
AM_CONDITIONAL([WANT_SINGLE_PRECISION_COMPLEX],[test x"$want_single_precision" = x"yes"])
1484

1485
#always define SKEWSYMMETRIC for the moment
1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499

AC_MSG_CHECKING(whether we should enable skew-symmetric support)
AC_ARG_ENABLE([skew-symmetric-support],
              AS_HELP_STRING([--enable-skew-symmetric-support],
                             [enable support for real valued skew-symmetric matrices]),
			     [if test x"$enableval" = x"yes"; then
			        enable_skewsymmetric=yes
		              else
				enable_skewsymmetric=no
			      fi],
              [enable_skewsymmetric=no])
AC_MSG_RESULT([${enable_skewsymmetric}])
AM_CONDITIONAL([HAVE_SKEWSYMMETRIC],[test x"$enable_skewsymmetric" = x"yes"])
if test x"${enable_skewsymmetric}" = x"yes"; then
1500
  AC_DEFINE([HAVE_SKEWSYMMETRIC],[1],[build for skewsyemmtric case])
1501
fi
1502

1503
AC_SUBST([MPI_BINARY])
1504 1505 1506 1507
AC_SUBST([WITH_MKL])
AC_SUBST([WITH_BLACS])
AC_SUBST([FC_MODINC])
AC_SUBST([FC_MODOUT])
1508 1509 1510
AC_SUBST([OPENMP_CFLAGS])
AC_SUBST([OPENMP_FCFLAGS])
AC_SUBST([OPENMP_LDFLAGS])
1511
AC_SUBST([DOXYGEN_OUTPUT_DIR], [docs])
1512

1513
mkdir -p modules private_modules test_modules
1514