| # Copyright (c) 2021 The Regents of the University of California |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer; |
| # redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution; |
| # neither the name of the copyright holders nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| |
| from ...utils.override import overrides |
| from m5.objects import Addr |
| |
| from ..boards.mem_mode import MemMode |
| |
| from .gups_generator_core import GUPSGeneratorCore |
| |
| from .abstract_processor import AbstractProcessor |
| from ..boards.abstract_board import AbstractBoard |
| |
| |
| class GUPSGeneratorPAR(AbstractProcessor): |
| def __init__( |
| self, |
| num_cores: int, |
| start_addr: Addr, |
| mem_size: str, |
| update_limit: int = 0, |
| ): |
| """The GUPSGeneratorPAR class |
| This class defines the interface for multi core GUPSGenerator, this |
| generator could be used in place of a processor. In terms of |
| benchmarking this generator implements the parallel (3rd) |
| variant of the GUPS benchmark as specified by HPCC website. |
| |
| :param start_addr: The start address for allocating the update table. |
| :param mem_size: The size of memory to allocate for the update table. |
| Should be a power of 2. |
| :param update_limit: The number of updates to do before terminating |
| simulation. Pass zero to run the benchmark to completion (The amount of |
| time it takes to simulate depends on ) |
| """ |
| super().__init__( |
| cores=self._create_cores( |
| num_cores=num_cores, |
| start_addr=start_addr, |
| mem_size=mem_size, |
| update_limit=update_limit, |
| ) |
| ) |
| |
| def _create_cores( |
| self, |
| num_cores: int, |
| start_addr: Addr, |
| mem_size: str, |
| update_limit: int, |
| ): |
| """ |
| Helper function to create cores. |
| """ |
| return [ |
| GUPSGeneratorCore( |
| start_addr=start_addr, |
| mem_size=mem_size, |
| update_limit=update_limit / num_cores, |
| ) |
| for i in range(num_cores) |
| ] |
| |
| @overrides(AbstractProcessor) |
| def incorporate_processor(self, board: AbstractBoard) -> None: |
| board.set_mem_mode(MemMode.TIMING) |
| |
| def start_traffic(self): |
| # This function should be implemented so that GUPSGeneratorPAR could be |
| # used in the same scripts that use LinearGenerator, RandomGenerator, |
| # and ComplexGenrator |
| pass |