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# Copyright 2013-2024 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.package import *
class GpuBurn(MakefilePackage, CudaPackage):
"""Multi-GPU CUDA stress test."""
homepage = "http://wili.cc/blog/gpu-burn.html"
url = "http://wili.cc/blog/entries/gpu-burn/gpu_burn-1.0.tar.gz"
git = "https://github.com/wilicc/gpu-burn"
version("master", branch="master")
version("1.1", sha256="9876dbf7ab17b3072e9bc657034ab39bdedb219478f57c4e93314c78ae2d6376")
version("1.0", sha256="d55994f0bee8dabf021966dbe574ef52be1e43386faeee91318dd4ebb36aa74a")
# This package uses CudaPackage to pick up the cuda_arch variant. A side
# effect is that it also picks up the cuda variant, but cuda is required
# for gpu-burn so is not really a variant.
variant("cuda", default=True, description="Use CUDA; must be true")
conflicts("~cuda", msg="gpu-burn requires cuda")
conflicts("cuda_arch=none", msg="must select a CUDA architecture")
def edit(self, spec, prefix):
# update cuda architecture if necessary
if "+cuda" in self.spec:
cuda_arch = self.spec.variants["cuda_arch"].value
archflag = " ".join(CudaPackage.cuda_flags(cuda_arch))
with open("Makefile", "w") as fh:
fh.write("drv:\n")
fh.write("\tnvcc {0} -fatbin " "compare.cu -o compare.ptx\n".format(archflag))
fh.write("\t{0} -O3 -c gpu_burn-drv.cpp\n".format(spack_cxx))
fh.write(
"\t{0} -o gpu_burn gpu_burn-drv.o -O3 -lcuda "
"-lcublas -lcudart -o gpu_burn\n".format(spack_cxx)
)
filter_file(
"compare.ptx",
join_path(prefix.share, "compare.ptx"),
"gpu_burn-drv.cpp",
string=True,
)
def install(self, spec, prefix):
mkdir(prefix.bin)
mkdir(prefix.share)
install("gpu_burn", prefix.bin)
install("compare.ptx", prefix.share)
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