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# Copyright 2013-2018 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
from spack import *
import glob
import os
import sys
class Verrou(AutotoolsPackage):
"""A floating-point error checker.
Verrou helps you look for floating-point round-off errors in programs. It
implements a stochastic floating-point arithmetic based on random rounding:
all floating-point operations are perturbed by randomly switching rounding
modes. This can be seen as an asynchronous variant of the CESTAC method, or
a subset of Monte Carlo Arithmetic, performing only output randomization
through random rounding.
"""
homepage = "https://github.com/edf-hpc/verrou"
url = "https://github.com/edf-hpc/verrou/archive/v2.0.0.tar.gz"
git = "https://github.com/edf-hpc/verrou.git"
version('develop', branch='master')
version('2.0.0', '388d493df3f253c9b049ce0ceae55fd6')
version('1.1.0', '9752d776fb534890e5e29f9721ee6125')
resource(name='valgrind-3.13.0',
url='https://sourceware.org/pub/valgrind/valgrind-3.13.0.tar.bz2',
sha256='d76680ef03f00cd5e970bbdcd4e57fb1f6df7d2e2c071635ef2be74790190c3b',
when='@1.1.0:')
variant('fma', default=True,
description='Activates fused multiply-add support for Verrou')
depends_on('autoconf', type='build')
depends_on('automake', type='build')
depends_on('libtool', type='build')
depends_on('m4', type='build')
def patch(self):
# We start with the verrou source tree and a "valgrind-x.y.z" subdir.
# But we actually need a valgrind source tree with a "verrou" subdir.
# First, let's locate the valgrind sources...
valgrind_dirs = glob.glob('valgrind-*')
assert len(valgrind_dirs) == 1
valgrind_dir = valgrind_dirs[0]
# ...then we can flip the directory organization around
verrou_files = os.listdir('.')
verrou_files.remove(valgrind_dir)
os.mkdir('verrou')
for name in verrou_files:
os.rename(name, os.path.join('verrou', name))
for name in os.listdir(valgrind_dir):
os.rename(os.path.join(valgrind_dir, name), name)
os.rmdir(valgrind_dir)
# Once this is done, we can patch valgrind
which('patch')('-p0', '--input=verrou/valgrind.diff')
# Autogenerated perl path may be too long, need to fix this here
# because these files are used during the build.
for link_tool_in in glob.glob('coregrind/link_tool_exe_*.in'):
filter_file('^#! @PERL@',
'#! /usr/bin/env perl',
link_tool_in)
def autoreconf(self, spec, prefix):
# Needed because we patched valgrind
which("bash")("autogen.sh")
def configure_args(self):
spec = self.spec
options = [
'--enable-only64bit',
'--{0}able-verrou-fma'.format('en' if '+fma' in spec else 'dis')
]
if sys.platform == 'darwin':
options.append('--build=amd64-darwin')
return options
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