NAME¶
pmdanvidia - nvidia gpu metrics domain agent (PMDA)
SYNOPSIS¶
$PCP_PMDAS_DIR/nvidia/pmdanvidia [
-d domain] [
-l
logfile]
DESCRIPTION¶
pmdanvidia is a Performance Metrics Domain Agent (PMDA) which extracts
performance metrics describing the metrics available on NVIDIA GPU cards via
the NVML library.
The
nvidia PMDA exports metrics that measure gpu activity, memory
utilization, fan speed, etc on NVIDIA Tesla and Quadro cards. Metrics are
unlikely to be available for consumer class cards.
A brief description of the
pmdanvidia command line options follows:
- -d
- It is absolutely crucial that the performance metrics domain number
specified here is unique and consistent. That is, domain should be
different for every PMDA on the one host, and the same domain
number should be used for the same PMDA on all hosts.
- -l
- Location of the log file. By default, a log file named nvidia.log
is written in the current directory of pmcd(1) when
pmdanvidia is started, i.e. $PCP_LOG_DIR/pmcd. If the log
file cannot be created or is not writable, output is written to the
standard error instead.
INSTALLATION¶
The
nvidia PMDA is not installed and available by default. If you want to
undo the installation, do the following as root:
# cd $PCP_PMDAS_DIR/nvidia
# ./Remove
If you want to establish access to the names, help text and values for the
nvidia performance metrics once more, after removal, do the following as root:
# cd $PCP_PMDAS_DIR/nvidia
# ./Install
pmdanvidia is launched by
pmcd(1) and should never be executed
directly. The Install and Remove scripts notify
pmcd(1) when the agent
is installed or removed.
FILES¶
- $PCP_PMCDCONF_PATH
- command line options used to launch pmdanvidia
- $PCP_PMDAS_DIR/nvidia/help
- default help text file for the nvidia metrics
- $PCP_PMDAS_DIR/nvidia/Install
- installation script for the pmdanvidia agent
- $PCP_PMDAS_DIR/nvidia/Remove
- undo installation script for the pmdanvidia agent
- $PCP_LOG_DIR/pmcd/nvidia.log
- default log file for error messages and other information from
pmdanvidia
PCP ENVIRONMENT¶
Environment variables with the prefix
PCP_ are used to parameterize the
file and directory names used by PCP. On each installation, the file
/etc/pcp.conf contains the local values for these variables. The
$PCP_CONF variable may be used to specify an alternative configuration
file, as described in
pcp.conf(5).
SEE ALSO¶
PCPIntro(1),
pmcd(1),
pcp.conf(5) and
pcp.env(5).