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fftw 3.3: enable AVX instruction set for SIMD speedup #19002

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fftw 3.3: enable AVX instruction set for SIMD speedup #19002

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298b031
fftw 3.3: enable AVX instruction set for SIMD speedup
Apr 6, 2013
f72d92d
enable gfortran graphite support for auto-vectorization in -O3
Apr 6, 2013
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13 changes: 7 additions & 6 deletions Library/Formula/fftw.rb
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Expand Up @@ -6,6 +6,7 @@ class Fftw < Formula
sha1 '11487180928d05746d431ebe7a176b52fe205cf9'

option "with-fortran", "Enable Fortran bindings"
option "without-avx", "Disable AVX instruction set for SIMD speedup"

def install
args = ["--enable-shared",
Expand All @@ -14,25 +15,25 @@ def install
"--enable-threads",
"--disable-dependency-tracking"]

simd_args = ["--enable-sse2"]
simd_args << "--enable-avx" unless build.include? "without-avx"
if build.include? "with-fortran"
ENV.fortran
else
args << "--disable-fortran" unless which 'gfortran'
end

# single precision
# enable-sse only works with single
system "./configure", "--enable-single",
"--enable-sse",
*args
# enable-sse2 works for both single and double precisions
system "./configure", "--enable-single", *(args + simd_args)
system "make install"

# clean up so we can compile the double precision variant
system "make clean"

# double precision
# enable-sse2 only works with double precision (default)
system "./configure", "--enable-sse2", *args
# enable-sse2 works for both single and double precisions
system "./configure", *(args + simd_args)
system "make install"

# clean up so we can compile the long-double precision variant
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4 changes: 4 additions & 0 deletions Library/Formula/gfortran.rb
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Expand Up @@ -20,6 +20,8 @@ class Gfortran < Formula
depends_on 'gmp'
depends_on 'libmpc'
depends_on 'mpfr'
depends_on 'isl'
depends_on 'cloog'

# http://gcc.gnu.org/install/test.html
depends_on 'dejagnu' if build.include? 'check'
Expand Down Expand Up @@ -54,6 +56,8 @@ def install
"--with-gmp=#{Formula.factory('gmp').opt_prefix}",
"--with-mpfr=#{Formula.factory('mpfr').opt_prefix}",
"--with-mpc=#{Formula.factory('libmpc').opt_prefix}",
"--with-isl=#{Formula.factory('isl').opt_prefix}",
"--with-cloog=#{Formula.factory('cloog').opt_prefix}",
# ...we build the stage 1 gcc with clang (which is know to fail checks)
"--enable-checking=release",
"--disable-stage1-checking",
Expand Down