tests/gem5/gpu/test_gpu_ruby_random.py

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from testlib import *

"""
This file contains random tests for the Ruby GPU protocols.
"""

# This test will first run the GPU protocol random tester -- it should take
# about 30 seconds to run and provides good coverage for the coherence
# protocol.
#
# Input choices (some are default and thus implicit):
# - use small cache size to encourage races
# - use small system size to encourage races since more requests per CU (and
#   faster sim)
# - use small address range to encourage more races
# - use small episode length to encourage more races
# - 50K tests runs in ~30 seconds with reasonably good coverage
# - num-dmas = 0 because VIPER doesn't support partial cache line writes, which
#   DMAs need
gem5_verify_config(
    name="ruby-gpu-random-test-perCheckin",
    fixtures=(),
    verifiers=(),
    config=joinpath(
        config.base_dir,
        "configs",
        "example",
        "ruby_gpu_random_test.py",
    ),
    config_args=[
        "--test-length",
        "50000",
        "--num-dmas",
        "0",
    ],
    valid_isas=(constants.vega_x86_tag,),
    valid_hosts=constants.supported_hosts,
    length=constants.quick_tag,
)


# This test will run the GPU protocol random tester in nightly -- it should
# take about 30 minutes to run and provides good coverage for the coherence
# protocol.
#
# Input choices (some are default and thus implicit):
#  - use small cache size to encourage races
#  - use small system size to encourage races since more requests per CU (and
#    faster sim)
#  - use small address range to encourage more races
#  - use small episode length to encourage more races
#  - 5M tests runs in ~30 minutes with reasonably good coverage
#  - num-dmas = 0 because VIPER doesn't support partial cache line writes,
#    which DMAs need
gem5_verify_config(
    name="ruby-gpu-random-test-nightly",
    fixtures=(),
    verifiers=(),
    config=joinpath(
        config.base_dir,
        "configs",
        "example",
        "ruby_gpu_random_test.py",
    ),
    config_args=[
        "--test-length",
        "5000000",
        "--num-dmas",
        "0",
    ],
    valid_isas=(constants.vega_x86_tag,),
    valid_hosts=constants.supported_hosts,
    length=constants.long_tag,
)