mirror of
https://github.com/ARM-software/workload-automation.git
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94 lines
3.5 KiB
Python
94 lines
3.5 KiB
Python
# Copyright 2012-2015 ARM Limited
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# pylint: disable=attribute-defined-outside-init
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import os
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import re
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from wlauto import Workload, Parameter, Executable
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stream_results_txt = 'stream_results.txt'
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system_array_regex = re.compile(r'^This system uses (\d)')
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regex_map = {
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"array_size": (re.compile(r'^Array size = (\d+)'), "elements"),
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"total_threads_requested": (re.compile(r'^Number of Threads requested = (\d+)'), "threads"),
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"total_thread_count": (re.compile(r'^Number of Threads counted = (\d+)'), "threads")
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}
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regex_map2 = {
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"memory_per_array": re.compile(r'^Memory per array = (\d*.\d*) (\w+)'),
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"total_memory_required": re.compile(r'^Total memory required = (\d*.\d*) (\w+)')
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}
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class Stream(Workload):
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name = 'stream'
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description = """
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Measures memory bandwidth.
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The original source code be found on:
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https://www.cs.virginia.edu/stream/FTP/Code/
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"""
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parameters = [
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# Workload parameters go here e.g.
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Parameter('threads', kind=int, default=0,
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description='The number of threads to execute if OpenMP is enabled')
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]
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def initialize(self, context):
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Stream.stream_noomp_binary = context.resolver.get(Executable(self, self.device.abi, 'stream_noomp'))
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Stream.stream_omp_binary = context.resolver.get(Executable(self, self.device.abi, 'stream_omp'))
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Stream.stream_default = self.device.install(Stream.stream_noomp_binary)
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Stream.stream_optional = self.device.install(Stream.stream_omp_binary)
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def setup(self, context):
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self.results = os.path.join(self.device.working_directory, stream_results_txt)
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self.timeout = 50
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if self.threads:
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self.command = 'OMP_NUM_THREADS={} {} > {}'.format(self.threads, self.stream_optional, self.results)
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else:
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self.command = '{} > {}'.format(self.stream_default, self.results)
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def run(self, context):
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self.output = self.device.execute(self.command, timeout=self.timeout)
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def update_result(self, context):
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self.device.pull(self.results, context.output_directory)
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outfile = os.path.join(context.output_directory, stream_results_txt)
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with open(outfile, 'r') as stream_file:
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for line in stream_file:
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match = system_array_regex.search(line)
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if match:
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context.result.add_metric('bytes_per_array_element', int(match.group(1)), 'bytes')
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for label, (regex, units) in regex_map.iteritems():
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match = regex.search(line)
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if match:
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context.result.add_metric(label, float(match.group(1)), units)
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for label, regex in regex_map2.iteritems():
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match = regex.search(line)
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if match:
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context.result.add_metric(label, float(match.group(1)), match.group(2))
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def finalize(self, context):
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self.device.uninstall(self.stream_default)
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self.device.uninstall(self.stream_optional)
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