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Add NVML support for persistence mode, locking clocks.

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Locking clocks is currently only implemented for Volta+ devices.

Example usage:

my_bench -d [0,1,3] --persistence-mode 1 --lock-gpu-clocks base

See the cli_help.md docs for more info.
This commit is contained in:
Allison Vacanti
2021-10-21 01:01:16 -04:00
parent d0c90ff920
commit b948e79cab
18 changed files with 656 additions and 19 deletions
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29
docs/cli_help.md
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@@ -12,6 +12,33 @@
* `--version`
* Print information about the version of NVBench used to build the executable.
# Device Modification
* `--persistence-mode <state>`, `--pm <state>`
* Sets persistence mode for one or more GPU devices.
* Applies to the devices described by the most recent `--devices` option,
or all devices if `--devices` is not specified.
* This option requires root / admin permissions.
* This option is only supported on Linux.
* This call must precede all other device modification options, if any.
* Note that persistence mode is deprecated and will be removed at some point
in favor of the new persistence daemon. See the following link for more
details: https://docs.nvidia.com/deploy/driver-persistence/index.html
* Valid values for `state` are:
* `0`: Disable persistence mode.
* `1`: Enable persistence mode.
* `--lock-gpu-clocks <rate>`, `--lgc <rate>`
* Lock GPU clocks for one or more devices to a particular rate.
* Applies to the devices described by the most recent `--devices` option,
or all devices if `--devices` is not specified.
* This option requires root / admin permissions.
* This option is only supported in Volta+ (sm_70+) devices.
* Valid values for `rate` are:
* `reset`, `unlock`, `none`: Unlock the GPU clocks.
* `base`, `tdp`: Lock clocks to base frequency (best for stable results).
* `max`, `maximum`: Lock clocks to max frequency (best for fastest results).
# Output
* `--csv <filename/stream>`
@@ -51,7 +78,7 @@
* `--devices <device ids>`, `--device <device ids>`, `-d <device ids>`
* Limit execution to one or more devices.
* `<device ids>` is a single id, or a comma separated list.
* `<device ids>` is a single id, a comma separated list, or the string "all".
* Device ids can be obtained from `--list`.
* Applies to the most recent `--benchmark`, or all benchmarks if specified
before any `--benchmark` arguments.