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FFT double and single precision gives good performance now in multithreaded code.

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paboyle
2016-08-24 15:05:00 +01:00
parent 88be3b39bb
commit ff6da364e8
6 changed files with 298 additions and 492 deletions
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47
configure.ac
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@ -10,8 +10,19 @@ m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
AC_LANG(C++)
CXXFLAGS="-O3 $CXXFLAGS"
AC_PROG_CXX
############ openmp ###############
AC_OPENMP
ac_openmp=no
if test "${OPENMP_CXXFLAGS}X" != "X"; then
ac_openmp=yes
AM_CXXFLAGS="$OPENMP_CXXFLAGS $AM_CXXFLAGS"
AM_LDFLAGS="$OPENMP_CXXFLAGS $AM_LDFLAGS"
fi
############ libtool ###############
LT_INIT
############### Checks for header files
@ -29,7 +40,7 @@ AC_TYPE_SIZE_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T
############### Options
############### GMP and MPFR #################
AC_ARG_WITH([gmp],
[AS_HELP_STRING([--with-gmp=prefix],
[try this for a non-standard install prefix of the GMP library])],
@ -40,6 +51,8 @@ AC_ARG_WITH([mpfr],
[try this for a non-standard install prefix of the MPFR library])],
[AM_CXXFLAGS="-I$with_mpfr/include $AM_CXXFLAGS"]
[AM_LDFLAGS="-L$with_mpfr/lib $AM_LDFLAGS"])
################## lapack ####################
AC_ARG_ENABLE([lapack],
[AC_HELP_STRING([--enable-lapack=yes|no|prefix], [enable LAPACK])],
[ac_LAPACK=${enable_lapack}],[ac_LAPACK=no])
@ -55,14 +68,27 @@ case ${ac_LAPACK} in
AC_DEFINE([USE_LAPACK],[1],[use LAPACK])
esac
AC_CHECK_LIB([fftw3],[fft_init_threads],
################## FFTW3 ####################
AC_ARG_WITH([fftw],
[AS_HELP_STRING([--with-fftw=prefix],
[try this for a non-standard install prefix of the FFTW3 library])],
[AM_CXXFLAGS="-I$with_fftw/include $AM_CXXFLAGS"]
[AM_LDFLAGS="-L$with_fftw/lib $AM_LDFLAGS"])
#
# What about the MKL library replacement for fftw3 ? How do we know if fftw_execute
# can be found in MKL?
#
AC_CHECK_LIB([fftw3],[fftw_execute],
[AC_DEFINE([HAVE_FFTW],[1],[Define to 1 if you have the `FFTW' library (-lfftw3).])] [ac_fftw=yes],
[ac_fftw=no])
case ${ac_fftw} in
no)
echo WARNING libfftw3 not found FFT routines will not work
;;
yes)
AM_LDFLAGS="-lfftw3 $AM_LDFLAGS"
AM_LDFLAGS="$AM_LDFLAGS -lfftw3 -lfftw3f"
esac
@ -304,19 +330,18 @@ Summary of configuration for $PACKAGE v$VERSION
- compiler version : ${ax_cv_gxx_version}
----- BUILD OPTIONS -----------------------------------
- SIMD : ${ac_SIMD}
- communications type : ${ac_COMMS}
- default precision : ${ac_PRECISION}
- Threading : ${ac_openmp}
- Communications type : ${ac_COMMS}
- Default precision : ${ac_PRECISION}
- RNG choice : ${ac_RNG}
- GMP : `if test "x$have_gmp" = xtrue; then echo yes; else echo no; fi`
- LAPACK : ${ac_LAPACK}
- FFTW : ${ac_fftw}
- build DOXYGEN documentation : `if test "x$enable_doc" = xyes; then echo yes; else echo no; fi`
- graphs and diagrams : `if test "x$enable_dot" = xyes; then echo yes; else echo no; fi`
----- BUILD FLAGS -------------------------------------
- CXXFLAGS:
`echo ${AM_CXXFLAGS} ${CXXFLAGS} | sed 's/ -/\n\t-/g' | sed 's/^-/\t-/g'`
- LDFLAGS:
`echo ${AM_LDFLAGS} ${LDFLAGS} | sed 's/ -/\n\t-/g' | sed 's/^-/\t-/g'`
- LIBS:
`echo ${LIBS} | sed 's/ -/\n\t-/g' | sed 's/^-/\t-/g'`
- CXXFLAGS: "${AM_CXXFLAGS} ${CXXFLAGS}"
- LDFLAGS: "${AM_LDFLAGS} ${LDFLAGS}"
- LIBS: "${LIBS} "
-------------------------------------------------------
"