Hello
So I thought the reason why my previous command line options were not being
parsed in the latest version of gem5 (21..2.1.0) could be because the CHI.py
and CHI_config.py files were not being compiled when generating the executable
gem5.opt binary.
So I tried the following command:
rm -rf build/ARM
scons -j4 build/ARM/gem5.opt --default=ARM PROTOCOL=CHI
The above command terminates with:
Building in /home/j00533938/gitlab/gem5-21.2.1.0/gem5/build/ARM
Using saved variables file
/home/j00533938/gitlab/gem5-21.2.1.0/gem5/build/variables/ARM
scons: *** Invalid value for option PROTOCOL: CHI. Valid values are:
['GPU_VIPER', 'GPU_VIPER_Baseline', 'GPU_VIPER_Region', 'GPU_RfO',
'MOESI_AMD_Base', 'MESI_Two_Level', 'MESI_Three_Level', 'MI_example',
'MOESI_CMP_directory', 'MOESI_CMP_token', 'MOESI_hammer', 'Garnet_standalone',
'None', 'MSI']
Thus it looks like CHI is not supported in this latest version of gem5 ??
So looking in build_opts/ARM we have:
j00533938@lhrpbig100002:~/gitlab/gem5-21.2.1.0/gem5/build_opts$ more ARM
TARGET_ISA = 'arm'
CPU_MODELS = 'AtomicSimpleCPU,TimingSimpleCPU,O3CPU,MinorCPU'
PROTOCOL = 'MOESI_CMP_directory'
Is CHI protocol not supported in the latest gem5 release?
Tks in advance
JO
From: Javed Osmany
Sent: 02 March 2022 15:00
To: gem5 users mailing list <gem5-users@gem5.org>
Cc: Javed Osmany <javed.osm...@huawei.com>
Subject: CHI
Hello
I am using the latest version of gem5 (21.2.1.0).
Previously, when using gem5 version 21.0.0.0, in the function "def
define_options(parser)" (in CHI.py), I added some command line options as such:
def define_options(parser):
parser.add_option("--chi-config", action="store", type="string",
default=None,
help="NoC config. parameters and bindings. "
"Required for CustomMesh topology")
## Add command line options specifically for the [Big, Middle, Little]
## Cluster.
parser.add_option("--verbose", action="store", type="string",
default="false",
help="Disable/Enable verbose printing for debugging")
parser.add_option("--num-clusters", action="store", type="string",
default=0,
help="Number of Clusters in the system")
I was then able to specify the options when running as:
./build/ARM/gem5.opt
--outdir=m5out_parsec_blackscoles_1_clust_little_4_cpu_all_shared_l2
configs/example/se_kiri
n_custom.py --ruby --topology=Pt2Pt --cpu-type=DerivO3CPU --num-cpus=4
--num-dirs=1 --num-l3caches=1 --verbose=true --num-clusters=0 .....
This then worked okay. The new command line options I added was recognised okay.
Now with gem5 21.2.1.0, I have added the same options to the
define_options(parser) function (in CHI.py) as such:
def define_options(parser):
parser.add_argument("--chi-config", action="store", type=str,
default=None,
help="NoC config. parameters and bindings. "
"Required for CustomMesh topology")
## Add command line options specifically for the [Big, Middle, Little]
## Cluster.
parser.add_option("--verbose", action="store", type="string",
default="false",
help="Disable/Enable verbose printing for debugging")
parser.add_option("--num-clusters", action="store", type="string",
default=0,
help="Number of Clusters in the system")
:
:
But the following command does not work anymore:
./build/ARM/gem5.opt
--outdir=m5out_parsec_blackscoles_1_clust_little_4_cpu_all_shared_l2
configs/example/se_kiri
n_custom.py --ruby --topology=Pt2Pt --cpu-type=DerivO3CPU --num-cpus=4
--num-dirs=1 --num-l3caches=1 --verbose=true --num-clusters=0
The error message being:
command line: ./build/ARM/gem5.opt
--outdir=m5out_parsec_blackscoles_1_clust_little_4_cpu_all_shared_l2
configs/example/se_kirin_custom.py --ruby --topology=Pt2Pt
--cpu-type=DerivO3CPU --num-cpus=4 --num-dirs=1 --num-l3caches=1 --verbose=true
--num-clusters=0
Usage: se_kirin_custom.py [options]
se_kirin_custom.py: error: no such option: --verbose
Any pointers why the new command line options I had previously specified are
now not working?
Tks in advance
JO
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