    Landing processors and its name may depend upon the NodeFeatures plugin
    configured in Slurm. For example, on Cray systems NodeFeatures should be configured
    to "knl_cray" and its configuration file will be read from "knl_cray.conf".
    The file will always be located in the same directory as the \fBslurm.conf\fR.
    This file is optional.
    .LP
    Parameter names are case insensitive.
    Any text following a "#" in the configuration file is treated
    as a comment through the end of that line.
    Changes to the configuration file take effect upon restart of
    Slurm daemons, daemon receipt of the SIGHUP signal, or execution
    of the command "scontrol reconfigure" unless otherwise noted.
    .LP
    The overall configuration parameters available include:

    .TP
    \fBAllowMCDRAM\fR
    Specify the MCDRAM modes which jobs are allowed to use.
    This may be a subset of MCDRAM modes supported by the node.
    If not specified, all MCDRAM modes supported by the node are available for use.
    The comma separated list of allowed MCDRAM modes may include any of the modes
    listed below.
    .IP
    .RS
    .TP 17
    \fBcache\fR
    All of MCDRAM to be used as cache.
    .IP

    .TP
    \fBequal\fR
    MCDRAM to be used partly as cache and partly combined with primary memory.
    .IP

    .TP
    \fBflat\fR
    MCDRAM to be combined with primary memory into a "flat" memory space.
    .RE
    .IP

    .TP
    \fBAllowNUMA\fR
    Specify the NUMA modes which jobs are allowed to use.
    This may be a subset of NUMA modes supported by the node.
    If not specified, all NUMA modes supported by the node are available for use.
    The comma separated list of allowed NUMA modes may include any of the modes
    listed below.
    Note that Slurm can only support homogeneous nodes
    (e.g. the same number of cores per NUMA node).
    KNL scn4 and quad modes are not homogeneous, but each NUMA mode will have
    either 16 or 18 cores.
    This will result in Slurm using the lower core count and finding a total of
    .TP
    \fBsnc4\fR
    Sub\-NUMA cluster 4
    .IP

    .TP
    \fBhemi\fR
    Hemisphere
    .IP

    .TP
    \fBquad\fR
    Quadrant
    .RE
    .IP

    .TP
    \fBAllowUserBoot\fR
    A comma\-delimited list of users allowed to modify a node's MCDRAM or NUMA state.
    If not specified then any user can change a node's state and reboot it.
    .IP

    .TP
    \fBBootTime\fR
    Estimated time to reboot a node in seconds.
    Used as a basis for optimizing scheduling decisions.
    The default value is 300 seconds (5 minutes) for the "knl_generic" plugin
    and 2700 seconds (45 minutes) for the "knl_cray" plugin.
    .IP

    .TP
    \fBCapmcPath\fR
    Fully qualified path to the \fBcapmc\fR program.
    The default value is "/opt/cray/capmc/default/bin/capmc".
    This parameter is used only by the "knl_cray" plugin.
    .IP

    .TP
    \fBCapmcPollFreq\fR
    Time interval between when the \fBcapmc\fR program should poll for node state
    changes, in seconds.
    The default value is 45 seconds.
    This parameter is used only by the "knl_cray" plugin.
    .IP

    .TP
    \fBCapmcRetries\fR
    Number of times to retry failed operations of the \fBcapmc\fR program.
    Default value is 4.
    .IP

    .TP
    .TP
    \fBDefaultMCDRAM\fR
    Specify the default MCDRAM modes for job's which do not specify a value.
    This is only used when a node is booted and the job which has been allocated
    the node does not specify a desired MCDRAM mode.
    The value can include one of the possible values identified with the
    \fBAllowMCDRAM\fR configuration parameter above.
    The default value is "cache".
    .IP

    .TP
    \fBDefaultNUMA\fR
    Specify the default NUMA modes for job's which do not specify a value.
    This is only used when a node is booted and the job which has been allocated
    the node does not specify a desired NUMA mode.
    The value can include one of the possible values identified with the
    \fBAllowNUMA\fR configuration parameter above.
    The default value is "a2a".
    .IP

    .TP
    \fBForce\fR
    If set to a non\-zero value then load the node_features/generic plugin even
    on non\-KNL nodes.
    Used primarily for testing purposes.
    .IP

    .TP
    \fBLogFile\fR
    Fully qualified path to a log file.
    The default value is SlurmctldLogFile from the slurm.conf configuration file.
    This is option is used only by the campc_suspend and campc_resume programs
    (which power down and reboot nodes in the appropriate configuration).
    .IP

    .TP
    \fBMcPath\fR
    Fully qualified path to memory controller device file directory.
    Children of this directory with names of the form "mc#/csrow#/ue_count"
    (i.e. the count of unrecoverable memory errors) will be monitored for non\-zero
    values.
    If such errors are detected, the node will be set to a DOWN state and the
    slurmd daemon will shutdown.
    The default value is "/sys/devices/system/edac/mc".
    See also \fBUmeCheckInterval\fR.
    .IP

    .TP
    \fBNumaCpuBind\fR
    Contains pairs of NUMA modes and the CpuBind mode to set a node to for that mode.
    Any compute node found with or set to the specified NUMA mode will have that
    node's CpuBind field set to the configured value.
    This parameter is used only by the "knl_generic" plugin.
    .IP

    .TP
    \fBSyscfgTimeout\fR
    Timeout for \fBsyscfg\fR program in milliseconds.
    Default value is 1000 milliseconds.
    For Dell KNL systems, experience has shown that a higher value of 10000
    milliseconds is more appropriate.
    .IP

    .TP
    \fBSystemType\fR
    Used to distinguish the flavor of knl we are dealing with.
    Possible options are "Dell" and "Intel".
    The default value is "Intel".
    This parameter is used only by the "knl_generic" plugin.
    .IP

    .TP
    \fBUmeCheckInterval\fR
    Interval, in microseconds, between checks for Uncorrectable Memory Errors (UME).
    If such errors are detected, the node will be set to a DOWN state and the
    slurmd daemon will shutdown.
    The default value is 0 (disabled).
    See also \fBMcPath\fR.
    .IP

    .TP
    \fBValidateMode\fR
    If set to 1 then validate, but do not modify the node's configured MCDRAM and
    NUMA modes from the slurm.conf file. If the actual modes do not match configured
    values the node will be set to a DOWN state. Every KNL nodes MCDRAM and NUMA
    states must both be listed in the slurm.conf file.
    This parameter is used only by the "knl_cray" plugin.
    .IP

    .SH "EXAMPLE"
    .nf
    ###################################################################
    # knl_cray.conf
    # Slurm configuration file for Intel Knights Landing on Cray system
    ###################################################################
    CapmcPath=/opt/cray/capmc/default/bin/capmc
    CapmcTimeout=6000
    DefaultMCDRAM=flat
    DefaultNUMA=a2a
    NumaCpuBind=a2a=core;snc2=thread;snc4=thread
    LogFile=/var/tmp/slurm_node_feature.log
    SyscfgPath=/usr/sbin/syscfg
    .fi

    details.

    .SH "SEE ALSO"
    .LP
    \fBslurm.conf\fR(5)