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# Copyright 2013-2022 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', '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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