bd8c73ef18
- Override the cuda_arch variant setup, with multi=False to ensure one value is selected - Use a conflicts statement rather than InstallError
57 lines
2.1 KiB
Python
57 lines
2.1 KiB
Python
# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
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# Spack Project Developers. See the top-level COPYRIGHT file for details.
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#
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# SPDX-License-Identifier: (Apache-2.0 OR MIT)
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from spack import *
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class GpuBurn(MakefilePackage, CudaPackage):
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"""Multi-GPU CUDA stress test. Note that the file pointed to by COMPARE_PTX
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needs to be copied or linked to the current working directory before
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running gpu_burn."""
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homepage = "http://wili.cc/blog/gpu-burn.html"
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url = "http://wili.cc/blog/entries/gpu-burn/gpu_burn-1.0.tar.gz"
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version('1.0', sha256='d55994f0bee8dabf021966dbe574ef52be1e43386faeee91318dd4ebb36aa74a')
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patch('Makefile.patch')
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# This package uses CudaPackage to pick up the cuda_arch variant. A side
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# effect is that it also picks up the cuda variant, but cuda is required
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# for gpu-burn so is not really a variant.
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variant('cuda', 'True', description='Use CUDA; must be true')
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conflicts('~cuda', msg='gpu-burn requires cuda')
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conflicts('cuda_arch=none', msg='must select a CUDA architecture')
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cuda_arch_values = CudaPackage.cuda_arch_values
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variant(
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'cuda_arch',
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description='CUDA architecture',
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default='none',
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values=cuda_arch_values,
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multi=False
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)
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def edit(self, spec, prefix):
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# update cuda architecture if necessary
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if '+cuda' in self.spec:
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cuda_arch = self.spec.variants['cuda_arch'].value
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archflag = '-arch=compute_{0}'.format(cuda_arch)
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filter_file('-arch=compute_30', archflag,
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'Makefile', string=True)
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def install(self, spec, prefix):
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mkdir(prefix.bin)
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mkdir(prefix.share)
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install('gpu_burn', prefix.bin)
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install('compare.ptx', prefix.share)
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# The gpu_burn program looks for the compare.ptx file in the current
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# working directory. Create an environment variable that can be pointed to
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# so that it can be copied or linked.
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def setup_run_environment(self, env):
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env.set('COMPARE_PTX', join_path(self.prefix.share, 'compare.ptx'))
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