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from spack import *
import os
import glob
class Tbb(Package):
"""Widely used C++ template library for task parallelism.
Intel Threading Building Blocks (Intel TBB) lets you easily write parallel
C++ programs that take full advantage of multicore performance, that are
portable and composable, and that have future-proof scalability.
"""
homepage = "http://www.threadingbuildingblocks.org/"
# Only version-specific URL's work for TBB
version('4.4.3', '80707e277f69d9b20eeebdd7a5f5331137868ce1', url='https://www.threadingbuildingblocks.org/sites/default/files/software_releases/source/tbb44_20160128oss_src_0.tgz')
def coerce_to_spack(self,tbb_build_subdir):
for compiler in ["icc","gcc","clang"]:
fs = glob.glob(join_path(tbb_build_subdir,"*.%s.inc" % compiler ))
for f in fs:
lines = open(f).readlines()
of = open(f,"w")
for l in lines:
if l.strip().startswith("CPLUS ="):
of.write("# coerced to spack\n")
of.write("CPLUS = $(CXX)\n")
elif l.strip().startswith("CPLUS ="):
of.write("# coerced to spack\n")
of.write("CONLY = $(CC)\n")
else:
of.write(l);
def install(self, spec, prefix):
#
# we need to follow TBB's compiler selection logic to get the proper build + link flags
# but we still need to use spack's compiler wrappers
# to accomplish this, we do two things:
#
# * Look at the spack spec to determine which compiler we should pass to tbb's Makefile
#
# * patch tbb's build system to use the compiler wrappers (CC, CXX) for
# icc, gcc, clang
# (see coerce_to_spack())
#
self.coerce_to_spack("build")
if spec.satisfies('%clang'):
tbb_compiler = "clang"
elif spec.satisfies('%intel'):
tbb_compiler = "icc"
else:
tbb_compiler = "gcc"
mkdirp(prefix)
mkdirp(prefix.lib)
#
# tbb does not have a configure script or make install target
# we simply call make, and try to put the pieces together
#
make("compiler=%s" %(tbb_compiler))
# install headers to {prefix}/include
install_tree('include',prefix.include)
# install libs to {prefix}/lib
tbb_lib_names = ["libtbb",
"libtbbmalloc",
"libtbbmalloc_proxy"]
for lib_name in tbb_lib_names:
# install release libs
fs = glob.glob(join_path("build","*release",lib_name + ".*"))
for f in fs:
install(f, prefix.lib)
# install debug libs if they exist
fs = glob.glob(join_path("build","*debug",lib_name + "_debug.*"))
for f in fs:
install(f, prefix.lib)
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