pepc-cpu-hotplug - Man Page

-h

Show a short help message and exit.

-q

Be quiet.

-d

Print debugging information.

--version

Print version and exit.

-H HOSTNAME, --host HOSTNAME

Name of the host to run the command on.

-U USERNAME, --username USERNAME

Name of the user to use for logging into the remote host over SSH. The default user name is 'root'.

-K PRIVKEY, --priv-key PRIVKEY

Path to the private SSH key that should be used for logging into the remote host. By default the key is automatically found from standard paths like '$HOME/.ssh'.

-T TIMEOUT, --timeout TIMEOUT

SSH connection timeout in seconds, default is 8.

-D DATASET, --dataset DATASET

This option is for debugging and testing purposes only, it defines the dataset that will be used to emulate a host for running the command on. This option is typically used when running 'pepc' from the source directory, which includes datasets for many different systems.

The argument can be the dataset path, 'all' to specify all available dataset or name in which case the following locations will be searched for.

1. './tests/data', in the directory of the running program
2. '$PEPC_DATA_PATH/tests/data'
3. '$HOME/.local/share/pepc/tests/data'
4. '/usr/local/share/pepc/tests/data'
5. '/usr/share/pepc/tests/data'

--force-color

Force coloring of the text output.

List all online and offline CPUs.

Bring CPUs online.

--cpus CPUS

List of CPUs to online. The list can include individual CPU numbers and CPU number ranges. For example,'1-4,7,8,10-12' would mean CPUs 1 to 4, CPUs 7, 8, and 10 to 12. Use the special keyword 'all' to specify all CPUs.

Bring CPUs offline.

--cpus CPUS

List of CPUs to offline. The list can include individual CPU numbers and CPU number ranges. For example,'1-4,7,8,10-12' would mean CPUs 1 to 4, CPUs 7, 8, and 10 to 12. Use the special keyword 'all' to specify all CPUs.

--cores CORES

List of cores to offline. The list can include individual core numbers and core number ranges. For example, '1-4,7,8,10-12' would mean cores 1 to 4, cores 7, 8, and 10 to 12. Use the special keyword 'all' to specify all cores. This option has to be accompanied by '--package' option, because core numbers are per-package.

--packages PACKAGES

List of packages to offline. The list can include individual package numbers and package number ranges. For example, '0,2-4' would mean package 0 and packages 2 to 4. Use the special keyword 'all' to specify all packages.

--core-siblings CORE_SIBLINGS

List of core sibling indices to offline. The list can include individual core sibling indices or index ranges. For example, core x includes CPUs 3 and 4, '0' would mean CPU 3 and '1' would mean CPU 4. This option can only be used to reference online CPUs, because Linux does not provide topology information for offline CPUs. In the previous example if CPU 3 was offline, then '0' would mean CPU 4.