sinfo man page

sinfo — view information about Slurm nodes and partitions.

Synopsis

sinfo [Options...]

Description

sinfo is used to view partition and node information for a system running Slurm.

Options

-a, --all

Display information about all partitions. This causes information to be displayed about partitions that are configured as hidden and partitions that are unavailable to user's group.

-b, --bgl

Display information about bglblocks (on Blue Gene systems only).

-d, --dead

If set only report state information for non-responding (dead) nodes.

-e, --exact

If set, do not group node information on multiple nodes unless their configurations to be reported are identical. Otherwise cpu count, memory size, and disk space for nodes will be listed with the minimum value followed by a "+" for nodes with the same partition and state (e.g., "250+").

-h, --noheader

Do not print a header on the output.

--help

Print a message describing all sinfo options.

--hide

Do not display information about hidden partitions. By default, partitions that are configured as hidden or are not available to the user's group will not be displayed (i.e. this is the default behavior).

-i <seconds>, --iterate=<seconds>

Print the state on a periodic basis. Sleep for the indicated number of seconds between reports. By default, prints a time stamp with the header.

-l, --long

Print more detailed information. This is ignored if the --format option is specified.

-M, --clusters=<string>

Clusters to issue commands to.  Multiple cluster names may be comma separated. A value of of 'all' will query to run on all clusters. Note that the SlurmDBD must be up for this option to work properly.

-n <nodes>, --nodes=<nodes>

Print information only about the specified node(s). Multiple nodes may be comma separated or expressed using a node range expression. For example "linux[00-07]" would indicate eight nodes, "linux00" through "linux07." Performance of the command can be measurably improved for systems with large numbers of nodes when a single node name is specified.

--noconvert

Don't convert units from their original type (e.g. 2048M won't be converted to 2G).

-N, --Node

Print information in a node-oriented format with one line per node. The default is to print information in a partition-oriented format. This is ignored if the --format option is specified.

-o <output_format>, --format=<output_format>

Specify the information to be displayed using an sinfo format string. Format strings transparently used by sinfo when running with various options are

default

"%#P %.5a %.10l %.6D %.6t %N"

--summarize

"%#P %.5a %.10l %.16F  %N"

--long

"%#P %.5a %.10l %.10s %.4r %.8h %.10g %.6D %.11T %N"

--Node

"%#N %.6D %#P %6t"

--long --Node

"%#N %.6D %#P %.11T %.4c %.8z %.6m %.8d %.6w %.8f %20E"

--list-reasons

"%20E %9u %19H %N"

--long --list-reasons

"%20E %12U %19H %6t %N"

In the above format strings, the use of "#" represents the maximum length of any partition name or node list to be printed. A pass is made over the records to be printed to establish the size in order to align the sinfo output, then a second pass is made over the records to print them. Note that the literal character "#" itself is not a valid field length specification, but is only used to document this behaviour.

The field specifications available include:

%all

Print all fields available for this data type with a vertical bar separating each field.

%a

State/availability of a partition

%A

Number of nodes by state in the format "allocated/idle". Do not use this with a node state option ("%t" or "%T") or the different node states will be placed on separate lines.

%b

Features currently active on the nodes, also see %f

%B

The max number of CPUs per node available to jobs in the partition.

%c

Number of CPUs per node

%C

Number of CPUs by state in the format "allocated/idle/other/total". Do not use this with a node state option ("%t" or "%T") or the different node states will be placed on separate lines.

%d

Size of temporary disk space per node in megabytes

%D

Number of nodes

%e

Free memory of a node

%E

The reason a node is unavailable (down, drained, or draining states).

%f

Features available the nodes, also see %b

%F

Number of nodes by state in the format "allocated/idle/other/total".  Note the use of this format option with a node state format option ("%t" or "%T") will result in the different node states being be reported on separate lines.

%g

Groups which may use the nodes

%G

Generic resources (gres) associated with the nodes

%h

Jobs may oversubscribe compute resources (i.e. CPUs), "yes", "no", "exclusive" or "force"

%H

Print the timestamp of the reason a node is unavailable.

%I

Partition job priority weighting factor.

%l

Maximum time for any job in the format "days-hours:minutes:seconds"

%L

Default time for any job in the format "days-hours:minutes:seconds"

%m

Size of memory per node in megabytes

%M

PreemptionMode

%n

List of node hostnames

%N

List of node names

%o

List of node communication addresses

%O

CPU load of a node

%p

Partition scheduling tier priority.

%P

Partition name followed by "*" for the default partition, also see %R

%r

Only user root may initiate jobs, "yes" or "no"

%R

Partition name, also see %P

%s

Maximum job size in nodes

%S

Allowed allocating nodes

%t

State of nodes, compact form

%T

State of nodes, extended form

%u

Print the user name of who set the reason a node is unavailable.

%U

Print the user name and uid of who set the reason a node is unavailable.

%v

Print the version of the running slurmd daemon.

%w

Scheduling weight of the nodes

%X

Number of sockets per node

%Y

Number of cores per socket

%Z

Number of threads per core

%z

Extended processor information: number of sockets, cores, threads (S:C:T) per node

%.<*>

right justification of the field

%<Number><*>

size of field

-O <output_format>, --Format=<output_format>

Specify the information to be displayed. Also see the -o <output_format>, --format=<output_format> option described below (which supports greater flexibility in formatting, but does not support access to all fields because we ran out of letters). Requests a comma separated list of job information to be displayed.

The format of each field is "type[:[.]size]"

size

is the minimum field size. If no size is specified, 20 characters will be allocated to print the information.

.

indicates the output should be right justified and size must be specified. By default, output is left justified.

Valid type specifications include:

all

Print all fields available in the -o format for this data type with a vertical bar separating each field.

allocmem

Prints the amount of allocated memory on a node.

allocnodes

Allowed allocating nodes.

available

State/availability of a partition.

cpus

Number of CPUs per node.

cpusload

CPU load of a node.

freemem

Free memory of a node.

cpusstate

Number of CPUs by state in the format "allocated/idle/other/total". Do not use this with a node state option ("%t" or "%T") or the different node states will be placed on separate lines.

cores

Number of cores per socket.

defaulttime

Default time for any job in the format "days-hours:minutes:seconds".

disk

Size of temporary disk space per node in megabytes.

features

Features available on the nodes. Also see features_act.

features_act

Features currently active on the nodes. Also see features.

groups

Groups which may use the nodes.

gres

Generic resources (gres) associated with the nodes.

maxcpuspernode

The max number of CPUs per node available to jobs in the partition.

memory

Size of memory per node in megabytes.

nodes

Number of nodes.

nodeaddr

List of node communication addresses.

nodeai

Number of nodes by state in the format "allocated/idle". Do not use this with a node state option ("%t" or "%T") or the different node states will be placed on separate lines.

nodeaiot

Number of nodes by state in the format "allocated/idle/other/total".  Do not use this with a node state option ("%t" or "%T") or the different node states will be placed on separate lines.

nodehost

List of node hostnames.

nodelist

List of node names.

oversubscribe

Jobs may oversubscribe compute resources (i.e. CPUs), "yes", "no", "exclusive" or "force".

partition

Partition name followed by "*" for the default partition, also see %R.

partitionname

Partition name, also see %P.

port

Node TCP port.

preemptmode

PreemptionMode.

priorityjobfactor

Partition factor used by priority/multifactor plugin in calculating job priority.

prioritytier or priority

Partition scheduling tier priority.

reason

The reason a node is unavailable (down, drained, or draining states).

root

Only user root may initiate jobs, "yes" or "no".

size

Maximum job size in nodes.

statecompact

State of nodes, compact form.

statelong

State of nodes, extended form.

sockets

Number of sockets per node.

socketcorethread

Extended processor information: number of sockets, cores, threads (S:C:T) per node.

time

Maximum time for any job in the format "days-hours:minutes:seconds".

timestamp

Print the timestamp of the reason a node is unavailable.

threads

Number of threads per core.

user

Print the user name of who set the reason a node is unavailable.

userlong

Print the user name and uid of who set the reason a node is unavailable.

version

Print the version of the running slurmd daemon.

weight

Scheduling weight of the nodes.

-p <partition>, --partition=<partition>

Print information only about the specified partition(s). Multiple partitions are separated by commas.

-r, --responding

If set only report state information for responding nodes.

-R, --list-reasons

List reasons nodes are in the down, drained, fail or failing state. When nodes are in these states Slurm supports optional inclusion of a "reason" string by an administrator. This option will display the first 35 characters of the reason field and list of nodes with that reason for all nodes that are, by default, down, drained, draining or failing. This option may be used with other node filtering options (e.g. -r, -d, -t, -n), however, combinations of these options that result in a list of nodes that are not down or drained or failing will not produce any output. When used with -l the output additionally includes the current node state.

-s, --summarize

List only a partition state summary with no node state details. This is ignored if the --format option is specified.

-S <sort_list>, --sort=<sort_list>

Specification of the order in which records should be reported. This uses the same field specification as the <output_format>. Multiple sorts may be performed by listing multiple sort fields separated by commas.  The field specifications may be preceded by "+" or "-" for ascending (default) and descending order respectively.  The partition field specification, "P", may be preceded by a "#" to report partitions in the same order that they appear in Slurm's  configuration file, slurm.conf. For example, a sort value of "+P,-m" requests that records be printed in order of increasing partition name and within a partition by decreasing memory size.  The default value of sort is "#P,-t" (partitions ordered as configured then decreasing node state).  If the --Node option is selected, the default sort value is "N" (increasing node name).

-t <states> , --states=<states>

List nodes only having the given state(s).  Multiple states may be comma separated and the comparison is case insensitive. Possible values include (case insensitive): ALLOC, ALLOCATED, COMP, COMPLETING, DOWN, DRAIN (for node in DRAINING or DRAINED states), DRAINED, DRAINING, ERR, ERROR, FAIL, FUTURE, FUTR, IDLE, MAINT, MIX, MIXED, NO_RESPOND, NPC, PERFCTRS, POWER_DOWN, POWER_UP, RESV, RESERVED, UNK, and UNKNOWN. By default nodes in the specified state are reported whether they are responding or not. The --dead and --responding options may be used to filtering nodes by the responding flag.

-T, --reservation

Only display information about Slurm reservations.

--usage

Print a brief message listing the sinfo options.

-v, --verbose

Provide detailed event logging through program execution.

-V, --version

Print version information and exit.

Output Field Descriptions

AVAIL

Partition state: up or down.

CPUS

Count of CPUs (processors) on each node.

S:C:T

Count of sockets (S), cores (C), and threads (T) on these nodes.

SOCKETS

Count of sockets on these nodes.

CORES

Count of cores on these nodes.

THREADS

Count of threads on these nodes.

GROUPS

Resource allocations in this partition are restricted to the named groups.  all indicates that all groups may use this partition.

JOB_SIZE

Minimum and maximum node count that can be allocated to any user job.  A single number indicates the minimum and maximum node count are the same.  infinite is used to identify partitions without a maximum node count.

TIMELIMIT

Maximum time limit for any user job in days-hours:minutes:seconds.  infinite is used to identify partitions without a job time limit.

MEMORY

Size of real memory in megabytes on these nodes.

NODELIST or BP_LIST (BlueGene systems only)

Names of nodes associated with this configuration/partition.

NODES

Count of nodes with this particular configuration.

NODES(A/I)

Count of nodes with this particular configuration by node state in the form "available/idle".

NODES(A/I/O/T)

Count of nodes with this particular configuration by node state in the form "available/idle/other/total".

PARTITION

Name of a partition.  Note that the suffix "*" identifies the default partition.

PORT

Local TCP port used by slurmd on the node.

ROOT

Is the ability to allocate resources in this partition restricted to user root, yes or no.

OVERSUBSCRIBE

Will jobs allocated resources in this partition oversubscribe those compute resources (i.e. CPUs). no indicates resources are never oversubscribed. exclusive indicates whole nodes are dedicated to jobs (equivalent to srun --exclusive option, may be used even with select/cons_res managing individual processors). force indicates resources are always available to be oversubscribed. yes indicates resource may be oversubscribed or not per job's resource allocation.

STATE

State of the nodes. Possible states include: allocated, completing, down, drained, draining, fail, failing, future, idle, maint, mixed, perfctrs, power_down, power_up, reserved, and unknown plus Their abbreviated forms: alloc, comp, down, drain, drng, fail, failg, futr, idle, maint, mix, npc, pow_dn, pow_up, resv, and unk respectively. Note that the suffix "*" identifies nodes that are presently not responding.

TMP_DISK

Size of temporary disk space in megabytes on these nodes.

Node State Codes

Node state codes are shortened as required for the field size. These node states may be followed by a special character to identify state flags associated with the node. The following node sufficies and states are used:

*

The node is presently not responding and will not be allocated any new work.  If the node remains non-responsive, it will be placed in the DOWN state (except in the case of COMPLETING, DRAINED, DRAINING, FAIL, FAILING nodes).

~

The node is presently in a power saving mode (typically running at reduced frequency).

#

The node is presently being powered up or configured.

$

The node is currently in a reservation with a flag value of "maintenance".

@

The node is pending reboot.

ALLOCATED

The node has been allocated to one or more jobs.

ALLOCATED+

The node is allocated to one or more active jobs plus one or more jobs are in the process of COMPLETING.

COMPLETING

All jobs associated with this node are in the process of COMPLETING.  This node state will be removed when all of the job's processes have terminated and the Slurm epilog program (if any) has terminated. See the Epilog parameter description in the slurm.conf man page for more information.

DOWN

The node is unavailable for use. Slurm can automatically place nodes in this state if some failure occurs. System administrators may also explicitly place nodes in this state. If a node resumes normal operation, Slurm can automatically return it to service. See the ReturnToService and SlurmdTimeout parameter descriptions in the slurm.conf(5) man page for more information.

DRAINED

The node is unavailable for use per system administrator request.  See the update node command in the scontrol(1) man page or the slurm.conf(5) man page for more information.

DRAINING

The node is currently executing a job, but will not be allocated to additional jobs. The node state will be changed to state DRAINED when the last job on it completes. Nodes enter this state per system administrator request. See the update node command in the scontrol(1) man page or the slurm.conf(5) man page for more information.

ERROR

The node is currently in an error state and not capable of running any jobs. Slurm can automatically place nodes in this state if some failure occurs. System administrators may also explicitly place nodes in this state. If a node resumes normal operation, Slurm can automatically return it to service. See the ReturnToService and SlurmdTimeout parameter descriptions in the slurm.conf(5) man page for more information.

FAIL

The node is expected to fail soon and is unavailable for use per system administrator request. See the update node command in the scontrol(1) man page or the slurm.conf(5) man page for more information.

FAILING

The node is currently executing a job, but is expected to fail soon and is unavailable for use per system administrator request. See the update node command in the scontrol(1) man page or the slurm.conf(5) man page for more information.

FUTURE

The node is currently not fully configured, but expected to be available at some point in the indefinite future for use.

IDLE

The node is not allocated to any jobs and is available for use.

MAINT

The node is currently in a reservation with a flag value of "maintainence".

REBOOT

The node is currently scheduled to be rebooted.

MIXED

The node has some of its CPUs ALLOCATED while others are IDLE.

PERFCTRS (NPC)

Network Performance Counters associated with this node are in use, rendering this node as not usable for any other jobs

POWER_DOWN

The node is currently powered down and not capable of running any jobs.

POWER_UP

The node is currently in the process of being powered up.

RESERVED

The node is in an advanced reservation and not generally available.

UNKNOWN

The Slurm controller has just started and the node's state has not yet been determined.

Environment Variables

Some sinfo options may be set via environment variables. These environment variables, along with their corresponding options, are listed below. (Note: Commandline options will always override these settings.)

SINFO_ALL

-a, --all

SINFO_FORMAT

-o <output_format>, --format=<output_format>

SINFO_PARTITION

-p <partition>, --partition=<partition>

SINFO_SORT

-S <sort>, --sort=<sort>

SLURM_CLUSTERS

Same as --clusters

SLURM_CONF

The location of the Slurm configuration file.

SLURM_TIME_FORMAT

Specify the format used to report time stamps. A value of standard, the default value, generates output in the form "year-month-dateThour:minute:second". A value of relative returns only "hour:minute:second" if the current day. For other dates in the current year it prints the "hour:minute" preceded by "Tomorr" (tomorrow), "Ystday" (yesterday), the name of the day for the coming week (e.g. "Mon", "Tue", etc.), otherwise the date (e.g. "25 Apr"). For other years it returns a date month and year without a time (e.g. "6 Jun 2012"). All of the time stamps use a 24 hour format.

A valid strftime() format can also be specified. For example, a value of "%a %T" will report the day of the week and a time stamp (e.g. "Mon 12:34:56").

Examples

Report basic node and partition configurations:

> sinfo
PARTITION AVAIL TIMELIMIT NODES STATE  NODELIST
batch     up     infinite     2 alloc  adev[8-9]
batch     up     infinite     6 idle   adev[10-15]
debug*    up        30:00     8 idle   adev[0-7]

Report partition summary information:

> sinfo -s
PARTITION AVAIL TIMELIMIT NODES(A/I/O/T) NODELIST
batch     up     infinite 2/6/0/8        adev[8-15]
debug*    up        30:00 0/8/0/8        adev[0-7]

Report more complete information about the partition debug:

> sinfo --long --partition=debug
PARTITION AVAIL TIMELIMIT JOB_SIZE ROOT OVERSUBS GROUPS NODES STATE NODELIST
debug*    up        30:00        8 no   no       all        8 idle  dev[0-7]

Report only those nodes that are in state DRAINED:

> sinfo --states=drained
PARTITION AVAIL NODES TIMELIMIT STATE  NODELIST
debug*    up        2     30:00 drain  adev[6-7]

Report node-oriented information with details and exact matches:

> sinfo -Nel
NODELIST    NODES PARTITION STATE  CPUS MEMORY TMP_DISK WEIGHT FEATURES REASON
adev[0-1]       2 debug*    idle      2   3448    38536     16 (null)   (null)
adev[2,4-7]     5 debug*    idle      2   3384    38536     16 (null)   (null)
adev3           1 debug*    idle      2   3394    38536     16 (null)   (null)
adev[8-9]       2 batch     allocated 2    246    82306     16 (null)   (null)
adev[10-15]     6 batch     idle      2    246    82306     16 (null)   (null)

Report only down, drained and draining nodes and their reason field:

> sinfo -R
REASON                              NODELIST
Memory errors                       dev[0,5]
Not Responding                      dev8

Copying

Copyright (C) 2002-2007 The Regents of the University of California. Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
Copyright (C) 2008-2009 Lawrence Livermore National Security.
Copyright (C) 2010-2016 SchedMD LLC.

This file is part of Slurm, a resource management program. For details, see <https://slurm.schedmd.com/>.

Slurm is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

Slurm is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

See Also

scontrol(1), smap(1), squeue(1), slurm_load_ctl_conf (3), slurm_load_jobs (3), slurm_load_node (3), slurm_load_partitions (3), slurm_reconfigure (3), slurm_shutdown (3), slurm_update_job (3), slurm_update_node (3), slurm_update_partition (3), slurm.conf(5)

Referenced By

salloc(1), sattach(1), sbatch(1), scontrol(1), sdiag(1), sinfod(8), slurm(1), slurm_free_partition_info(3), slurm_load_reservations(3), smap(1), squeue(1), sshallsinfo(1), strigger(1), sview(1).

Slurm Commands November 2016