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tamaas/site_scons/detect.py
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detect.py
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# -*- coding: utf-8 -*-
# @file
# @section LICENSE
#
# Copyright (©) 2016-19 EPFL (École Polytechnique Fédérale de Lausanne),
# Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
import SCons
from os.path import join, abspath, exists, isdir, basename
from SCons.Script import Configure
# ------------------------------------------------------------------------------
def _get_path(env, ext, module_var):
path = ""
if module_var in env and env[module_var] != "":
root = abspath(env[module_var])
if not exists(root) or not isdir(root):
raise RuntimeError("{} is set to a non-existing path '{}'".format(
module_var, root))
path = join(root, ext)
if not exists(path) or not isdir(path):
raise RuntimeError("{} does not contain '{}' directory".format(
module_var, ext))
return [path]
# ------------------------------------------------------------------------------
def FindFFTW(env, components=[], precision='double', module_var='FFTW_ROOT'):
"""Find FFTW3 and set relevant environment variables"""
if not env.get('should_configure', True):
return
fftw_vars = {}
fftw_vars['CPPPATH'] = _get_path(env, 'include', module_var)
fftw_vars['LIBPATH'] = _get_path(env, 'lib', module_var)
# Setting up FFTW
wishes = ['main'] + components
fftw_name = "fftw3{}"
# Components
lib_names = {'main': fftw_name,
'thread': fftw_name + '_threads',
'omp': fftw_name + '_omp'}
inc_names = ['fftw3.h']
# Checking list of wishes
try:
libs = [lib_names[i].format("") for i in wishes]
except KeyError:
raise SCons.Errors.StopError(
'Incompatible FFTW wishlist {0}'.format(wishes))
fftw_vars['LIBS'] = libs
# Add long precision libraries
if precision == 'long double':
fftw_vars['LIBS'] += [lib_names[i].format("l") for i in wishes]
conf_env = env.Clone(**fftw_vars)
conf = Configure(conf_env)
if not conf.CheckLibWithHeader(libs, inc_names, 'c++'):
raise SCons.Errors.StopError(
'Failed to find libraries {0} or '
'headers {1}.'.format(str([lib_names[i].format("") for i in wishes]),
str(inc_names)))
conf_env = conf.Finish()
# Update modified variables
env.AppendUnique(**fftw_vars)
# ------------------------------------------------------------------------------
def FindBoost(env, headers=['boost/version.hpp'], module_var='BOOST_ROOT'):
"""Find Boost and set relevant environment variables"""
if not env.get('should_configure', True):
return
boost_vars = {}
boost_vars['CPPPATH'] = _get_path(env, 'include', module_var)
conf_env = env.Clone(**boost_vars)
conf = Configure(conf_env)
if not conf.CheckCXXHeader(headers):
raise SCons.Errors.StopError(
'Failed to find Boost headers {}'.format(headers))
conf_env = conf.Finish()
# Update modified variables
env.AppendUnique(**boost_vars)
# ------------------------------------------------------------------------------
def FindThrust(env, backend='omp', module_var='THRUST_ROOT'):
"""Find Thrust and set relevant environment variables"""
if not env.get('should_configure', True):
return
if backend not in ('omp', 'cuda', 'tbb'):
raise SCons.Errors.StopError(
'Unknown thrust backend "{}"'.format(backend))
thrust_vars = {}
thrust_vars['CPPPATH'] = _get_path(env, 'include', module_var)
if basename(env['CXX']) == "clang++":
thrust_vars['CXXFLAGS'] = ["-Wno-unused-local-typedef"]
thrust_vars['CPPDEFINES'] = [
"THRUST_DEVICE_SYSTEM=THRUST_DEVICE_SYSTEM_{}".format(backend.upper())
]
if backend == 'cuda':
thrust_vars['CPPDEFINES'].append("USE_CUDA")
conf_env = env.Clone(**thrust_vars)
conf = Configure(conf_env)
if not conf.CheckCXXHeader('thrust/version.h'):
raise SCons.Errors.StopError(
'Failed to find Thrust')
conf_env = conf.Finish()
# Update modified variables
env.AppendUnique(**thrust_vars)
# ------------------------------------------------------------------------------
def FindCuda(env, module_var="CUDA_ROOT"):
"""Detect cuda on clusters"""
if not env.get('should_configure', True):
return
if 'CUDA_ROOT' in env:
env['CUDA_TOOLKIT_PATH'] = _get_path(env, '', module_var)
else:
env['CUDA_TOOLKIT_PATH'] = '/opt/cuda'
env['CUDA_COMPONENTS'] = ['cufft']
env['CUDA_ARCH_FLAG'] = '-arch=sm_60'
colors = env['COLOR_DICT']
if not env['verbose']:
env['NVCCCOMSTR'] = env['SHCXXCOMSTR']
env['SHLINKCOMSTR'] = \
u'{0}[Linking (cuda)] {1}$TARGET{2}'.format(colors['purple'],
colors['blue'],
colors['end'])
env.AppendUnique(CXXFLAGS=[
"-expt-extended-lambda", # experimental lambda support
"-expt-relaxed-constexpr", # experimental constexpr
])
if env['build_type'] == 'debug':
env.AppendUnique(CXXFLAGS="-G")
env.Tool('nvcc')
# ------------------------------------------------------------------------------
def FindGTest(env):
"""A tool to configure GoogleTest"""
if not env.get('should_configure', True):
return
conf = Configure(env)
if not conf.CheckCXXHeader('gtest/gtest.h'):
raise SCons.Errors.StopError(
'Failed to find GoogleTest header\n' +
"Run 'git submodule update --init --recursive " +
"third-party/googletest'")
env = conf.Finish()
# ------------------------------------------------------------------------------
def FindExpolit(env):
"""A tool to configure Expolit"""
if not env.get('should_configure', True):
return
expolit_vars = {"CPPPATH": "#/third-party/expolit/include"}
conf_env = env.Clone(**expolit_vars)
conf = Configure(conf_env)
if not conf.CheckCXXHeader('expolit/expolit'):
raise SCons.Errors.StopError(
'Failed to find Expolit header\n' +
"Run 'git submodule update --init " +
"third-party/expolit'")
conf_env = conf.Finish()
env.AppendUnique(**expolit_vars)
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