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tests,configs,mem-ruby: Handle num DMAs in GPU Ruby tester

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Currently the GPU Ruby tester does not support requests returned
as aliased.  To get around this, the GPU Ruby tester needs
numDMAs to be 0.  To enable this, change the default value to allow
us to identify when a user wants more DMAs.

Change-Id: I0a31f66c831f0379544c15bd7364f185e1edb1b2
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/57535
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Matthew Poremba <matthew.poremba@amd.com>
This commit is contained in:
Matt Sinclair
2022-03-13 19:29:38 -05:00
parent 48ed8407c9
commit 9f6800e530
1 changed files with 12 additions and 7 deletions
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19
configs/example/ruby_gpu_random_test.py
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@@ -79,7 +79,7 @@ parser.add_argument("--random-seed", type=int, default=0,
help="Random seed number. Default value (i.e., 0) means \
using runtime-specific value")
parser.add_argument("--log-file", type=str, default="gpu-ruby-test.log")
parser.add_argument("--num-dmas", type=int, default=0,
parser.add_argument("--num-dmas", type=int, default=None,
help="The number of DMA engines to use in tester config.")
args = parser.parse_args()
@@ -108,7 +108,7 @@ if (args.system_size == "small"):
args.wf_size = 1
args.wavefronts_per_cu = 1
args.num_cpus = 1
args.num_dmas = 1
n_DMAs = 1
args.cu_per_sqc = 1
args.cu_per_scalar_cache = 1
args.num_compute_units = 1
@@ -117,7 +117,7 @@ elif (args.system_size == "medium"):
args.wf_size = 16
args.wavefronts_per_cu = 4
args.num_cpus = 4
args.num_dmas = 2
n_DMAs = 2
args.cu_per_sqc = 4
args.cu_per_scalar_cache = 4
args.num_compute_units = 4
@@ -126,11 +126,19 @@ elif (args.system_size == "large"):
args.wf_size = 32
args.wavefronts_per_cu = 4
args.num_cpus = 4
args.num_dmas = 4
n_DMAs = 4
args.cu_per_sqc = 4
args.cu_per_scalar_cache = 4
args.num_compute_units = 8
# Number of DMA engines
if not(args.num_dmas is None):
n_DMAs = args.num_dmas
# currently the tester does not support requests returned as
# aliased, thus we need num_dmas to be 0 for it
if not(args.num_dmas == 0):
print("WARNING: num_dmas != 0 not supported with VIPER")
#
# Set address range - 2 options
# level 0: small
@@ -173,9 +181,6 @@ tester_deadlock_threshold = 1e9
# For now we're testing only GPU protocol, so we force num_cpus to be 0
args.num_cpus = 0
# Number of DMA engines
n_DMAs = args.num_dmas
# Number of CUs
n_CUs = args.num_compute_units