Derek Christ
e89a9e22f5
The latest version of DRAMSys required several API changes which were applied in this commit. Also, the README for the usage of DRAMSys has been updated. The updated version fixes a bug in DRAMSys that caused some full-system simulations to loop endlessly. GitHub Issue: https://github.com/gem5/gem5/issues/1452
64 lines
2.6 KiB
Python
64 lines
2.6 KiB
Python
# Copyright (c) 2023 The Regents of the University of California
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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"""
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This script is used for running a traffic generator connected to the
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DRAMSys simulator.
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**Important Note**: DRAMSys must be compiled into the gem5 binary to use the
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DRRAMSys simulator. Please consult 'ext/dramsys/README' on how to compile
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correctly. If this is not done correctly this script will run with error.
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"""
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from gem5.components.boards.test_board import TestBoard
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from gem5.components.memory.dramsys import DRAMSysMem
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from gem5.components.processors.linear_generator import LinearGenerator
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from gem5.simulate.simulator import Simulator
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memory = DRAMSysMem(
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configuration="ext/dramsys/DRAMSys/configs/ddr4-example.json",
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size="4GiB",
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)
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generator = LinearGenerator(
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duration="250us",
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rate="40GiB/s",
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num_cores=1,
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max_addr=memory.get_size(),
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)
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board = TestBoard(
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clk_freq="3GHz", generator=generator, memory=memory, cache_hierarchy=None
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)
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simulator = Simulator(board=board)
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simulator.run()
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print(
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"Exiting @ tick {} because {}.".format(
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simulator.get_current_tick(), simulator.get_last_exit_event_cause()
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)
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)
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