Option(s) define multiple jobs in a co\-scheduled heterogeneous job.
For more details about heterogeneous jobs see the document
.br
https://slurm.schedmd.com/heterogeneous_jobs.html

.SH "DESCRIPTION"
sbatch submits a batch script to Slurm. The batch script may be given to
sbatch through a file name on the command line, or if no file name is specified,
sbatch will read in a script from standard input. The batch script may contain
options preceded with "#SBATCH" before any executable commands in the script.
sbatch will stop processing further #SBATCH directives once the first
non\-comment non\-whitespace line has been reached in the script.

sbatch exits immediately after the script is successfully transferred to the
Slurm controller and assigned a Slurm job ID. The batch script is not
necessarily granted resources immediately, it may sit in the queue of pending
jobs for some time before its required resources become available.

By default both standard output and standard error are directed to a file of
the name "slurm\-%j.out", where the "%j" is replaced with the job allocation
number. The file will be generated on the first node of the job allocation.
Other than the batch script itself, Slurm does no movement of user files.

When the job allocation is finally granted for the batch script, Slurm
runs a single copy of the batch script on the first node in the set of
allocated nodes.

The following document describes the influence of various options on the
allocation of cpus to jobs and tasks.
.br
https://slurm.schedmd.com/cpu_management.html

.SH "RETURN VALUE"
sbatch will return 0 on success or error code on failure.

.SH "SCRIPT PATH RESOLUTION"

The batch script is resolved in the following order:
.br

1. If script starts with ".", then path is constructed as:
current working directory / script
.br
2. If script starts with a "/", then path is considered absolute.
.br
3. If script is in current working directory.
.br
4. If script can be resolved through PATH. See \fBpath_resolution\fR(7).
.br
.P
Current working directory is the calling process working directory unless the
.TP
\fB\-\-acctg\-freq\fR=<\fIdatatype\fR>=<\fIinterval\fR>[,<\fIdatatype\fR>=<\fIinterval\fR>...]
Define the job accounting and profiling sampling intervals in seconds.
This can be used to override the \fIJobAcctGatherFrequency\fR parameter in
the slurm.conf file. <\fIdatatype\fR>=<\fIinterval\fR> specifies the task
sampling interval for the jobacct_gather plugin or a
sampling interval for a profiling type by the
acct_gather_profile plugin. Multiple
comma\-separated <\fIdatatype\fR>=<\fIinterval\fR> pairs
may be specified. Supported \fIdatatype\fR values are:
.IP
.RS
.TP 12
\fBtask\fR
Sampling interval for the jobacct_gather plugins and for task
profiling by the acct_gather_profile plugin.
.br
\fBNOTE\fR: This frequency is used to monitor memory usage. If memory limits
are enforced, the highest frequency a user can request is what is configured
in the slurm.conf file. It can not be disabled.
.IP

.TP
\fBenergy\fR
Sampling interval for energy profiling using the
acct_gather_energy plugin.
.IP

.TP
\fBnetwork\fR
Sampling interval for infiniband profiling using the
acct_gather_interconnect plugin.
.IP

.TP
\fBfilesystem\fR
Sampling interval for filesystem profiling using the
acct_gather_filesystem plugin.
.IP

.LP
The default value for the task sampling interval is 30 seconds.
The default value for all other intervals is 0.
An interval of 0 disables sampling of the specified type.
If the task sampling interval is 0, accounting
information is collected only at job termination (reducing Slurm
interference with the job).
.br
Smaller (non\-zero) values have a greater impact upon job performance,
but a value of 30 seconds is not likely to be noticeable for
applications having less than 10,000 tasks.
.RE
running tasks from this job array to 4.
The minimum index value is 0.
the maximum value is one less than the configuration parameter MaxArraySize.
\fBNOTE\fR: Currently, federated job arrays only run on the local cluster.
.IP

.TP
\fB\-\-batch\fR=<\fIlist\fR>
Nodes can have \fBfeatures\fR assigned to them by the Slurm administrator.
Users can specify which of these \fBfeatures\fR are required by their batch
script using this options.
For example a job's allocation may include both Intel Haswell and KNL nodes
with features "haswell" and "knl" respectively.
On such a configuration the batch script would normally benefit by executing
on a faster Haswell node.
This would be specified using the option "\-\-batch=haswell".
The specification can include AND and OR operators using the ampersand and
vertical bar separators. For example:
"\-\-batch=haswell|broadwell" or "\-\-batch=haswell|big_memory".
The \-\-batch argument must be a subset of the job's
\fB\-\-constraint\fR=<\fIlist\fR> argument (i.e. the job can not request only
KNL nodes, but require the script to execute on a Haswell node).
If the request can not be satisfied from the resources allocated to the job,
the batch script will execute on the first node of the job allocation.
.IP

.TP
\fB\-\-bb\fR=<\fIspec\fR>
Burst buffer specification. The form of the specification is system dependent.
Also see \fB\-\-bbf\fR.
When the \fB\-\-bb\fR option is used, Slurm parses this option and creates a
temporary burst buffer script file that is used internally by the burst buffer
plugins. See Slurm's burst buffer guide for more information and examples:
.br
https://slurm.schedmd.com/burst_buffer.html
.IP

.TP
\fB\-\-bbf\fR=<\fIfile_name\fR>
Path of file containing burst buffer specification.
The form of the specification is system dependent.
These burst buffer directives will be inserted into the submitted batch script.
See Slurm's burst buffer guide for more information and examples:
.br
https://slurm.schedmd.com/burst_buffer.html
.IP

.TP
\fB\-b\fR, \fB\-\-begin\fR=<\fItime\fR>
Submit the batch script to the Slurm controller immediately, like normal, but
tell the controller to defer the allocation of the job until the specified time.

job tomorrow with the keyword \fItomorrow\fR.
The value may be changed after job submission using the
\fBscontrol\fR command.
For example:
.IP
.nf
   \-\-begin=16:00
   \-\-begin=now+1hour
   \-\-begin=now+60           (seconds by default)
   \-\-begin=2010\-01\-20T12:34:00
.fi

.RS
.PP
Notes on date/time specifications:
 \- Although the 'seconds' field of the HH:MM:SS time specification is
allowed by the code, note that the poll time of the Slurm scheduler
is not precise enough to guarantee dispatch of the job on the exact
second. The job will be eligible to start on the next poll
following the specified time. The exact poll interval depends on the
Slurm scheduler (e.g., 60 seconds with the default sched/builtin).
 \- If no time (HH:MM:SS) is specified, the default is (00:00:00).
 \- If a date is specified without a year (e.g., MM/DD) then the current
year is assumed, unless the combination of MM/DD and HH:MM:SS has
already passed for that year, in which case the next year is used.
.RE
.IP

.TP
\fB\-D\fR, \fB\-\-chdir\fR=<\fIdirectory\fR>
Set the working directory of the batch script to \fIdirectory\fR before
it is executed. The path can be specified as full path or relative path
to the directory where the command is executed.
.IP

.TP
\fB\-\-cluster\-constraint\fR=[!]<\fIlist\fR>
Specifies features that a federated cluster must have to have a sibling job
submitted to it. Slurm will attempt to submit a sibling job to a cluster if it
has at least one of the specified features. If the "!" option is included, Slurm
will attempt to submit a sibling job to a cluster that has none of the specified
features.
.IP

.TP
\fB\-M\fR, \fB\-\-clusters\fR=<\fIstring\fR>
Clusters to issue commands to. Multiple cluster names may be comma separated.
The job will be submitted to the one cluster providing the earliest expected
job initiation time. The default value is the current cluster. A value of
\(aq\fIall\fR' will query to run on all clusters. Note the
\fB\-\-export\fR option to control environment variables exported
between clusters.
see \fB\-\-prefer\fR for more information.
Only nodes having features matching the job constraints will be used to
satisfy the request.
Multiple constraints may be specified with AND, OR, matching OR,
resource counts, etc. (some operators are not supported on all system types).

\fBNOTE\fR: Changeable features are features defined by a NodeFeatures plugin.

Supported \fB\-\-constraint\fR options include:
.IP
.PD 1
.RS
.TP
\fBSingle Name\fR
Only nodes which have the specified feature will be used.
For example, \fB\-\-constraint="intel"\fR
.IP

.TP
\fBNode Count\fR
A request can specify the number of nodes needed with some feature
by appending an asterisk and count after the feature name.
For example, \fB\-\-nodes=16 \-\-constraint="graphics*4"\fR
indicates that the job requires 16 nodes and that at least four of those
nodes must have the feature "graphics."
If requesting more than one feature and using node counts, the request
must have square brackets surrounding it.

\fBNOTE\fR: This option is not supported by the helpers NodeFeatures plugin.
Heterogeneous jobs can be used instead.
.IP

.TP
\fBAND\fR
Only nodes with all of specified features will be used.
The ampersand is used for an AND operator.
For example, \fB\-\-constraint="intel&gpu"\fR
.IP

.TP
\fBOR\fR
Only nodes with at least one of specified features will be used.
The vertical bar is used for an OR operator. If changeable features are not
requested, nodes in the allocation can have different features. For example,
\fBsalloc -N2 \-\-constraint="intel|amd"\fR can result in a job allocation
where one node has the intel feature and the other node has the amd feature.
However, if the expression contains a changeable feature, then all OR operators
are automatically treated as Matching OR so that all nodes in the job
allocation have the same set of features. For example,
\fBsalloc -N2 \-\-constraint="foo|bar&baz"\fR
The job is allocated two nodes where both nodes have foo, or bar and baz (one
or both nodes could have foo, bar, and baz). The helpers NodeFeatures plugin
.IP

.TP
\fBMultiple Counts\fR
Specific counts of multiple resources may be specified by using the AND
operator and enclosing the options within square brackets.
For example, \fB\-\-constraint="[rack1*2&rack2*4]"\fR might
be used to specify that two nodes must be allocated from nodes with the feature
of "rack1" and four nodes must be allocated from nodes with the feature
"rack2".

\fBNOTE\fR: This construct does not support multiple Intel KNL NUMA or MCDRAM
modes. For example, while \fB\-\-constraint="[(knl&quad)*2&(knl&hemi)*4]"\fR is
not supported, \fB\-\-constraint="[haswell*2&(knl&hemi)*4]"\fR is supported.
Specification of multiple KNL modes requires the use of a heterogeneous job.

\fBNOTE\fR: This option is not supported by the helpers NodeFeatures plugin.

\fBNOTE\fR: Multiple Counts can cause jobs to be allocated with a non-optimal
network layout.
.IP

.TP
\fBBrackets\fR
Brackets can be used to indicate that you are looking for a set of nodes with
the different requirements contained within the brackets. For example,
\fB\-\-constraint="[(rack1|rack2)*1&(rack3)*2]"\fR will get you one node with
either the "rack1" or "rack2" features and two nodes with the "rack3" feature.
If requesting more than one feature and using node counts, the request
must have square brackets surrounding it.

\fBNOTE\fR: Brackets are only reserved for \fBMultiple Counts\fR and
\fBMatching OR\fR syntax.
AND operators require a count for each feature inside square brackets
(i.e. "[quad*2&hemi*1]"). Slurm will only allow a single set of bracketed
constraints per job.

\fBNOTE\fR: Square brackets are not supported by the helpers NodeFeatures
plugin. Matching OR can be requested without square brackets by using the
vertical bar character with at least one changeable feature.
.IP

.TP
\fBParentheses\fR
Parentheses can be used to group like node features together. For example,
\fB\-\-constraint="[(knl&snc4&flat)*4&haswell*1]"\fR might be used to specify
that four nodes with the features "knl", "snc4" and "flat" plus one node with
the feature "haswell" are required.
Parentheses can also be used to group operations. Without parentheses, node
features are parsed strictly from left to right.
For example,
\fB\-\-constraint="foo&bar|baz"\fR requests nodes with foo and bar, or baz.
.TP
\fB\-\-container-id\fR=<\fIcontainer_id\fR>
Unique name for OCI container.
.IP

.TP
\fB\-\-contiguous\fR
If set, then the allocated nodes must form a contiguous set.

\fBNOTE\fR: If the SelectType is cons_tres this option won't be honored
with the \fBtopology/tree\fR or \fBtopology/3d_torus\fR
plugins, both of which can modify the node ordering.
.IP

.TP
\fB\-S\fR, \fB\-\-core\-spec\fR=<\fInum\fR>
Count of Specialized Cores per node reserved by the job for system operations
and not used by the application.
If AllowSpecResourcesUsage is enabled a job can override the CoreSpecCount of
all its allocated nodes with this option.
The overridden Specialized Cores will still be reserved for system processes.
The job will get an implicit \fB--exclusive\fR allocation for the rest of
the Cores on the nodes, resulting in the job's processes being able to use (and
being charged for) all the Cores on the nodes except for the overridden
Specialized Cores.
This option can not be used with the \fB\-\-thread\-spec\fR option.

\fBNOTE\fR: Explicitly setting a job's specialized core value implicitly sets
the --exclusive option.
.IP

.TP
\fB\-\-cores\-per\-socket\fR=<\fIcores\fR>
Restrict node selection to nodes with at least the specified number of
cores per socket. See additional information under \fB\-B\fR option
above when task/affinity plugin is enabled.
.br
\fBNOTE\fR: This option may implicitly set the number of tasks (if \fB\-n\fR
was not specified) as one task per requested thread.
.IP

.TP
\fB\-\-cpu\-freq\fR=<\fIp1\fR>[\-\fIp2\fR][:\fIp3\fR]

Request that job steps initiated by srun commands inside this sbatch script
be run at some requested frequency if possible, on the CPUs selected
for the step on the compute node(s).

\fBp1\fR can be [#### | low | medium | high | highm1] which will set the
frequency scaling_speed to the corresponding value, and set the frequency
scaling_governor to UserSpace. See below for definition of the values.


If \fBp3\fR is UserSpace, the frequency scaling_speed, scaling_max_freq and
scaling_min_freq will be statically set to the value defined by \fBp1\fR.

Any requested frequency below the minimum available frequency will be rounded
to the minimum available frequency. In the same way, any requested frequency
above the maximum available frequency will be rounded to the maximum available
frequency.

The \fBCpuFreqDef\fR parameter in slurm.conf will be used to set the governor
in absence of \fBp3\fR. If there's no \fBCpuFreqDef\fR, the default governor
will be to use the system current governor set in each cpu. Specifying a
range without \fBCpuFreqDef\fR or a specific governor is therefore not allowed.

Acceptable values at present include:
.IP
.RS
.TP 14
\fB####\fR
frequency in kilohertz
.IP

.TP
\fBLow\fR
the lowest available frequency
.IP

.TP
\fBHigh\fR
the highest available frequency
.IP

.TP
\fBHighM1\fR
(high minus one) will select the next highest available frequency
.IP

.TP
\fBMedium\fR
attempts to set a frequency in the middle of the available range
.IP

.TP
\fBConservative\fR
attempts to use the Conservative CPU governor
.IP

.TP
\fBOnDemand\fR
attempts to use the OnDemand CPU governor (the default value)
.IP

.RE

The following informational environment variable is set in the job
step when \fB\-\-cpu\-freq\fR option is requested.
.nf
        SLURM_CPU_FREQ_REQ
.fi

This environment variable can also be used to supply the value for the
CPU frequency request if it is set when the 'srun' command is issued.
The \fB\-\-cpu\-freq\fR on the command line will override the
environment variable value. The form on the environment variable is
the same as the command line.
See the \fBENVIRONMENT VARIABLES\fR
section for a description of the SLURM_CPU_FREQ_REQ variable.

\fBNOTE\fR: This parameter is treated as a request, not a requirement.
If the job step's node does not support setting the CPU frequency, or
the requested value is outside the bounds of the legal frequencies, an
error is logged, but the job step is allowed to continue.

\fBNOTE\fR: Setting the frequency for just the CPUs of the job step
implies that the tasks are confined to those CPUs. If task
confinement (i.e. the task/affinity TaskPlugin is enabled, or the task/cgroup
TaskPlugin is enabled with "ConstrainCores=yes" set in cgroup.conf) is not
configured, this parameter is ignored.

\fBNOTE\fR: When the step completes, the frequency and governor of each
selected CPU is reset to the previous values.

\fBNOTE\fR: When submitting jobs with the \fB\-\-cpu\-freq\fR option
with linuxproc as the ProctrackType can cause jobs to run too quickly before
Accounting is able to poll for job information. As a result not all of
accounting information will be present.
.RE
.IP

.TP
\fB\-\-cpus\-per\-gpu\fR=<\fIncpus\fR>
Request that \fIncpus\fR processors be allocated per allocated GPU.
Steps inheriting this value will imply \-\-exact.
Not compatible with the \fB\-\-cpus\-per\-task\fR option.
.IP

.TP
\fB\-c\fR, \fB\-\-cpus\-per\-task\fR=<\fIncpus\fR>
Advise the Slurm controller that ensuing job steps will require \fIncpus\fR
number of processors per task. Without this option, the controller will
just try to allocate one processor per task.

For instance,
consider an application that has 4 tasks, each requiring 3 processors. If our

Valid time formats are:
.br
HH:MM[:SS] [AM|PM]
.br
MMDD[YY] or MM/DD[/YY] or MM.DD[.YY]
.br
MM/DD[/YY]\-HH:MM[:SS]
.br
YYYY\-MM\-DD[THH:MM[:SS]]]
.br
now[+\fIcount\fR[seconds(default)|minutes|hours|days|weeks]]
.IP

.TP
\fB\-\-delay\-boot\fR=<\fIminutes\fR>
Do not reboot nodes in order to satisfied this job's feature specification if
the job has been eligible to run for less than this time period.
If the job has waited for less than the specified period, it will use only
nodes which already have the specified features.
The argument is in units of minutes.
A default value may be set by a system administrator using the \fBdelay_boot\fR
option of the \fBSchedulerParameters\fR configuration parameter in the
slurm.conf file, otherwise the default value is zero (no delay).
.IP

.TP
\fB\-d\fR, \fB\-\-dependency\fR=<\fIdependency_list\fR>
Defer the start of this job until the specified dependencies have been
satisfied.
<\fIdependency_list\fR> is of the form
<\fItype:job_id[:job_id][,type:job_id[:job_id]]\fR> or
<\fItype:job_id[:job_id][?type:job_id[:job_id]]\fR>.
All dependencies must be satisfied if the "," separator is used.
Any dependency may be satisfied if the "?" separator is used.
Only one separator may be used. For instance:
.nf
-d afterok:20:21,afterany:23
.fi
.IP
means that the job can run only after a 0 return code of jobs 20 and 21
AND the completion of job 23. However:
.nf
-d afterok:20:21?afterany:23
.fi
means that any of the conditions (afterok:20 OR afterok:21 OR afterany:23)
will be enough to release the job.
Many jobs can share the same dependency and these jobs may even belong to
different users. The value may be changed after job submission using the
scontrol command.
Dependencies on remote jobs are allowed in a federation.
Once a job dependency fails due to the termination state of a preceding job,
\fBafterany:job_id[:jobid...]\fR
This job can begin execution after the specified jobs have terminated.
This is the default dependency type.
.IP

.TP
\fBafterburstbuffer:job_id[:jobid...]\fR
This job can begin execution after the specified jobs have terminated and
any associated burst buffer stage out operations have completed.
.IP

.TP
\fBaftercorr:job_id[:jobid...]\fR
A task of this job array can begin execution after the corresponding task ID
in the specified job has completed successfully (ran to completion with an
exit code of zero).
.IP

.TP
\fBafternotok:job_id[:jobid...]\fR
This job can begin execution after the specified jobs have terminated
in some failed state (non\-zero exit code, node failure, timed out, etc).
This job must be submitted while the specified job is still active or within
\fBMinJobAge\fR seconds after the specified job has ended.
.IP

.TP
\fBafterok:job_id[:jobid...]\fR
This job can begin execution after the specified jobs have successfully
executed (ran to completion with an exit code of zero).
This job must be submitted while the specified job is still active or within
\fBMinJobAge\fR seconds after the specified job has ended.
.IP

.TP
\fBsingleton\fR
This job can begin execution after any previously launched jobs
sharing the same job name and user have terminated.
In other words, only one job by that name and owned by that user can be running
or suspended at any point in time.
In a federation, a singleton dependency must be fulfilled on all clusters
unless DependencyParameters=disable_remote_singleton is used in slurm.conf.
.RE
.IP

.TP
\fB\-m\fR, \fB\-\-distribution\fR={*|block|cyclic|arbitrary|plane=<\fIsize\fR>}[:{*|block|cyclic|fcyclic}[:{*|block|cyclic|fcyclic}]][,{Pack|NoPack}]

Specify alternate distribution methods for remote processes.
For job allocation, this sets environment variables that will be used by
subsequent srun requests and also affects which cores will be selected for
job allocation.
allocated to each socket and node may be different. Refer to
https://slurm.schedmd.com/mc_support.html
for more information on resource allocation, distribution of tasks to
nodes, and binding of tasks to CPUs.
.RS
First distribution method (distribution of tasks across nodes):

.TP
.B *
Use the default method for distributing tasks to nodes (block).
.IP

.TP
.B block
The block distribution method will distribute tasks to a node such
that consecutive tasks share a node. For example, consider an
allocation of three nodes each with two cpus. A four\-task block
distribution request will distribute those tasks to the nodes with
tasks one and two on the first node, task three on the second node,
and task four on the third node. Block distribution is the default
behavior if the number of tasks exceeds the number of allocated nodes.
.IP

.TP
.B cyclic
The cyclic distribution method will distribute tasks to a node such
that consecutive tasks are distributed over consecutive nodes (in a
round\-robin fashion). For example, consider an allocation of three
nodes each with two cpus. A four\-task cyclic distribution request
will distribute those tasks to the nodes with tasks one and four on
the first node, task two on the second node, and task three on the
third node.
Note that when SelectType is select/cons_tres, the same number of CPUs
may not be allocated on each node. Task distribution will be
round\-robin among all the nodes with CPUs yet to be assigned to tasks.
Cyclic distribution is the default behavior if the number
of tasks is no larger than the number of allocated nodes.
.IP

.TP
.B plane
The tasks are distributed in blocks of size <\fIsize\fR>. The size must be given
or SLURM_DIST_PLANESIZE must be set. The number of tasks
distributed to each node is the same as for cyclic distribution, but the
taskids assigned to each node depend on the plane size. Additional distribution
specifications cannot be combined with this option.
For more details (including examples and diagrams), please see
https://slurm.schedmd.com/mc_support.html and
https://slurm.schedmd.com/dist_plane.html
.IP

.TP
.br
\fBNOTE\fR: If the number of tasks is given and a list of requested nodes is
also given, the number of nodes used from that list will be reduced to match
that of the number of tasks if the number of nodes in the list is greater than
the number of tasks.
.IP

.LP
Second distribution method (distribution of CPUs across sockets for binding):

.TP
.B *
Use the default method for distributing CPUs across sockets (cyclic).
.IP

.TP
.B block
The block distribution method will distribute allocated CPUs
consecutively from the same socket for binding to tasks, before using
the next consecutive socket.
.IP

.TP
.B cyclic
The cyclic distribution method will distribute allocated CPUs for
binding to a given task consecutively from the same socket, and
from the next consecutive socket for the next task, in a
round\-robin fashion across sockets.
Tasks requiring more than one CPU will have all of those CPUs allocated on a
single socket if possible.
.br
\fBNOTE\fR: In nodes with hyper-threading enabled, a task not requesting full
cores may be distributed across sockets. This can be avoided by specifying
\fB\-\-ntasks\-per\-core=1\fR, which forces tasks to allocate full cores.
.IP

.TP
.B fcyclic
The fcyclic distribution method will distribute allocated CPUs
for binding to tasks from consecutive sockets in a
round\-robin fashion across the sockets.
Tasks requiring more than one CPU will have each CPUs allocated in a cyclic
fashion across sockets.
.IP

.LP
Third distribution method (distribution of CPUs across cores for binding):

.TP
.B *
Use the default method for distributing CPUs across cores
(inherited from second distribution method).
round\-robin fashion across cores.
.IP

.TP
.B fcyclic
The fcyclic distribution method will distribute allocated CPUs
for binding to tasks from consecutive cores in a
round\-robin fashion across the cores.
.IP

.LP
Optional control for task distribution over nodes:

.TP
.B Pack
Rather than evenly distributing a job step's tasks evenly across its allocated
nodes, pack them as tightly as possible on the nodes.
This only applies when the "block" task distribution method is used.
.IP

.TP
.B NoPack
Rather than packing a job step's tasks as tightly as possible on the nodes,
distribute them evenly.
This user option will supersede the SelectTypeParameters CR_Pack_Nodes
configuration parameter.
.RE
.IP

.TP
\fB\-e\fR, \fB\-\-error\fR=<\fIfilename_pattern\fR>
Instruct Slurm to connect the batch script's standard error directly to the
file name specified in the "\fIfilename pattern\fR".
By default both standard output and standard error are directed to the same file.
For job arrays, the default file name is "slurm\-%A_%a.out", "%A" is replaced
by the job ID and "%a" with the array index.
For other jobs, the default file name is "slurm\-%j.out", where the "%j" is
replaced by the job ID.
See the \fBfilename pattern\fR section below for filename specification options.
.IP

.TP
\fB\-x\fR, \fB\-\-exclude\fR=<\fInode_name_list\fR>
Explicitly exclude certain nodes from the resources granted to the job.
.IP

.TP
\fB\-\-exclusive\fR[={user|mcs}]
The job allocation can not share nodes with other running jobs (or just other
users with the "=user" option or with the "=mcs" option).
If user/mcs are not specified (i.e. the job allocation can not share nodes with
other running jobs), the job is allocated all CPUs and GRES on all nodes in the
Identify which environment variables from the submission environment are
propagated to the launched application. Note that SLURM_* variables are
always propagated.
.IP
.RS
.TP 10
\fB\-\-export\fR=ALL
Default mode if \fB\-\-export\fR is not specified. All of the user's environment
will be loaded (either from the caller's environment or from a clean environment
if \fI\-\-get\-user\-env\fR is specified).
.IP

.TP
\fB\-\-export\fR=NIL
Only SLURM_* and SPANK option variables from the user environment will be
defined. User must use absolute path to the binary to be executed that will
define the environment.
User can not specify explicit environment variables with "NIL".

Unlike NONE, NIL will not automatically create a user's environment using the
\fI\-\-get\-user\-env\fR mechanism.
.IP

.TP
\fB\-\-export\fR=NONE
Only SLURM_* and SPANK option variables from the user environment will be
defined. User must use absolute path to the binary to be executed that will
define the environment.
User can not specify explicit environment variables with "NONE".
However, Slurm will then implicitly attempt to load the user's environment on
the node where the script is being executed, as if \fI\-\-get\-user\-env\fR was
specified.

This option is particularly important for jobs that are submitted on one cluster
and execute on a different cluster (e.g. with different paths).
To avoid steps inheriting environment export settings (e.g. "NONE") from
sbatch command, the environment variable SLURM_EXPORT_ENV should be set to
"ALL" in the job script.
.IP

.TP
\fB\-\-export\fR=[\fIALL\fR,]<\fIenvironment_variables\fR>
Exports all SLURM_* and SPANK option environment variables along with explicitly
defined variables. Multiple environment variable names should be comma
separated.
Environment variable names may be specified to propagate the current
value (e.g. "\-\-export=EDITOR") or specific values may be exported
(e.g. "\-\-export=EDITOR=/bin/emacs"). If "ALL" is specified, then all user
environment variables will be loaded and will take precedence over any
explicitly given environment variables.
.IP
.RS 5
.RE
.RE
.IP

.TP
\fB\-\-export\-file\fR={<\fIfilename\fR>|<\fIfd\fR>}
If a number between 3 and OPEN_MAX is specified as the argument to
this option, a readable file descriptor will be assumed (STDIN and
STDOUT are not supported as valid arguments). Otherwise a filename is
assumed. Export environment variables defined in <\fIfilename\fR> or
read from <\fIfd\fR> to the job's execution environment. The
content is one or more environment variable definitions of the form
NAME=value, each separated by a null character. This allows the use
of special characters in environment definitions.
.IP

.TP
\fB\-\-extra\fR=<\fIstring\fR>
An arbitrary string enclosed in single or double quotes if using spaces or some
special characters.

If \fBSchedulerParameters=extra_constraints\fR is enabled, this string is used
for node filtering based on the \fIExtra\fR field in each node.
.IP

.TP
\fB\-B\fR, \fB\-\-extra\-node\-info\fR=<\fIsockets\fR>[:\fIcores\fR[:\fIthreads\fR]]
Restrict node selection to nodes with at least the specified number of
sockets, cores per socket and/or threads per core.
.br
\fBNOTE\fR: These options do not specify the resource allocation size.
Each value specified is considered a minimum.
An asterisk (*) can be used as a placeholder indicating that all available
resources of that type are to be utilized. Values can also be specified as
min\-max. The individual levels can also be specified in separate options if
desired:
.nf
    \fB\-\-sockets\-per\-node\fR=<\fIsockets\fR>
    \fB\-\-cores\-per\-socket\fR=<\fIcores\fR>
    \fB\-\-threads\-per\-core\fR=<\fIthreads\fR>
.fi
If task/affinity plugin is enabled, then specifying an allocation in this
manner also results in subsequently launched tasks being bound to threads
if the \fB\-B\fR option specifies a thread count, otherwise an option of
\fIcores\fR if a core count is specified, otherwise an option of \fIsockets\fR.
If SelectType is configured to select/cons_tres, it must have a parameter of
CR_Core, CR_Core_Memory, CR_Socket, or CR_Socket_Memory for this option
to be honored.
If not specified, the scontrol show job will display 'ReqS:C:T=*:*:*'. This
option applies to job allocations.
.br
\fBNOTE\fR: This option is mutually exclusive with \fB\-\-hint\fR,
login environment. Clear any environment variables before calling sbatch
that you do not want propagated to the spawned program.
The optional \fItimeout\fR value is in seconds. Default value is 8 seconds.
The optional \fImode\fR value control the "su" options.
With a \fImode\fR value of "S", "su" is executed without the "\-" option.
With a \fImode\fR value of "L", "su" is executed with the "\-" option,
replicating the login environment.
If \fImode\fR not specified, the mode established at Slurm build time
is used.
Example of use include "\-\-get\-user\-env", "\-\-get\-user\-env=10"
"\-\-get\-user\-env=10L", and "\-\-get\-user\-env=S".
.IP

.TP
\fB\-\-gid\fR=<\fIgroup\fR>
If \fBsbatch\fR is run as root, and the \fB\-\-gid\fR option is used,
submit the job with \fIgroup\fR's group access permissions. \fIgroup\fR
may be the group name or the numerical group ID.
.IP

.TP
\fB\-\-gpu\-bind\fR=[verbose,]<\fItype\fR>
Equivalent to \-\-tres\-bind=gres/gpu:[verbose,]<\fItype\fR>
See \fB\-\-tres\-bind\fR for all options and documentation.
.IP

.TP
\fB\-\-gpu\-freq\fR=[<\fItype\fR]=\fIvalue\fR>[,<\fItype\fR=\fIvalue\fR>][,verbose]
Request that GPUs allocated to the job are configured with specific frequency
values.
This option can be used to independently configure the GPU and its memory
frequencies.
After the job is completed, the frequencies of all affected GPUs will be reset
to the highest possible values.
In some cases, system power caps may override the requested values.
The field \fItype\fR can be "memory".
If \fItype\fR is not specified, the GPU frequency is implied.
The \fIvalue\fR field can either be "low", "medium", "high", "highm1" or
a numeric value in megahertz (MHz).
If the specified numeric value is not possible, a value as close as
possible will be used. See below for definition of the values.
The \fIverbose\fR option causes current GPU frequency information to be logged.
Examples of use include "\-\-gpu\-freq=medium,memory=high" and
"\-\-gpu\-freq=450".

Supported \fIvalue\fR definitions:
.IP
.RS
.TP 10
\fBlow\fR
the lowest available frequency.
.IP
.RE
.IP

.TP
\fB\-G\fR, \fB\-\-gpus\fR=[\fItype\fR:]<\fInumber\fR>
Specify the total number of GPUs required for the job.
An optional GPU type specification can be supplied.
For example "\-\-gpus=volta:3".
See also the \fB\-\-gpus\-per\-node\fR, \fB\-\-gpus\-per\-socket\fR and
\fB\-\-gpus\-per\-task\fR options.
.br
\fBNOTE\fR: The allocation has to contain at least one GPU per node.
.IP

.TP
\fB\-\-gpus\-per\-node\fR=[\fItype\fR:]<\fInumber\fR>
Specify the number of GPUs required for the job on each node included in
the job's resource allocation.
An optional GPU type specification can be supplied.
For example "\-\-gpus\-per\-node=volta:3".
Multiple options can be requested in a comma separated list, for example:
"\-\-gpus\-per\-node=volta:3,kepler:1".
See also the \fB\-\-gpus\fR, \fB\-\-gpus\-per\-socket\fR and
\fB\-\-gpus\-per\-task\fR options.
.IP

.TP
\fB\-\-gpus\-per\-socket\fR=[\fItype\fR:]<\fInumber\fR>
Specify the number of GPUs required for the job on each socket included in
the job's resource allocation.
An optional GPU type specification can be supplied.
For example "\-\-gpus\-per\-socket=volta:3".
Multiple options can be requested in a comma separated list, for example:
"\-\-gpus\-per\-socket=volta:3,kepler:1".
Requires job to specify a sockets per node count ( \-\-sockets\-per\-node).
See also the \fB\-\-gpus\fR, \fB\-\-gpus\-per\-node\fR and
\fB\-\-gpus\-per\-task\fR options.
.IP

.TP
\fB\-\-gpus\-per\-task\fR=[\fItype\fR:]<\fInumber\fR>
Specify the number of GPUs required for the job on each task to be spawned
in the job's resource allocation.
An optional GPU type specification can be supplied.
For example "\-\-gpus\-per\-task=volta:1". Multiple options can be
requested in a comma separated list, for example:
"\-\-gpus\-per\-task=volta:3,kepler:1". See also the \fB\-\-gpus\fR,
\fB\-\-gpus\-per\-socket\fR and \fB\-\-gpus\-per\-node\fR options.
This option requires an explicit task count, e.g. \-n, \-\-ntasks or "\-\-gpus=X
\-\-gpus\-per\-task=Y" rather than an ambiguous range of nodes with \-N, \-\-nodes.
This option will implicitly set \-\-tres\-bind=gres/gpu:per_task:<gpus_per_task>,
but that can be overridden with an explicit \-\-tres\-bind=gres/gpu
"g" or "G" (multiple of 1024 x 1024 x 1024),
"t" or "T" (multiple of 1024 x 1024 x 1024 x 1024),
"p" or "P" (multiple of 1024 x 1024 x 1024 x 1024 x 1024).
The specified resources will be allocated to the job on each node.
The available generic consumable resources is configurable by the system
administrator.
A list of available generic consumable resources will be printed and the
command will exit if the option argument is "help".
Examples of use include "\-\-gres=gpu:2", "\-\-gres=gpu:kepler:2", and
"\-\-gres=help".
.IP

.TP
\fB\-\-gres\-flags\fR=<\fItype\fR>
Specify generic resource task binding options.
.IP
.RS

.TP
.B multiple\-tasks\-per\-sharing
Negate \fBone\-task\-per\-sharing\fR. This is useful if it is set by default in
\fBSelectTypeParameters\fR.
.IP

.TP
.B disable\-binding
Negate \fBenforce\-binding\fR. This is useful if it is set by default in
\fBSelectTypeParameters\fR.
.IP

.TP
.B enforce\-binding
The only CPUs available to the job will be those bound to the selected
GRES (i.e. the CPUs identified in the gres.conf file will be strictly
enforced). This option may result in delayed initiation of a job.
For example a job requiring two GPUs and one CPU will be delayed until both
GPUs on a single socket are available rather than using GPUs bound to separate
sockets, however, the application performance may be improved due to improved
communication speed.
Requires the node to be configured with more than one socket and resource
filtering will be performed on a per\-socket basis.
.br
\fBNOTE\fR: This option can be set by default in \fBSelectTypeParameters\fR.
.br
\fBNOTE\fR: This option is specific to \fBSelectType=cons_tres\fR.
.IP

.TP
.B one\-task\-per\-sharing
Do not allow different tasks in to be allocated shared gres from the same
sharing gres.
.br
.IP

.TP
\fB\-\-hint\fR=<\fItype\fR>
Bind tasks according to application hints.
.br
\fBNOTE\fR: This option implies specific values for certain related options,
which prevents its use with any user\-specified values for
\fB\-\-ntasks\-per\-core\fR, \fB\-\-threads\-per\-core\fR or \fB\-B\fR.
These conflicting options will override \fB\-\-hint\fR when specified as
command line arguments. If a conflicting option is specified as an environment
variable, \-\-hint as a command line argument will take precedence.
.IP
.RS
.TP
.B compute_bound
Select settings for compute bound applications:
use all cores in each socket, one thread per core.
.IP

.TP
.B memory_bound
Select settings for memory bound applications:
use only one core in each socket, one thread per core.
.IP

.TP
.B multithread
Use extra threads with in\-core multi\-threading
which can benefit communication intensive applications.
Only supported with the task/affinity plugin.
.IP

.TP
.B nomultithread
Don't use extra threads with in\-core multi\-threading;
restricts tasks to one thread per core.
Only supported with the task/affinity plugin.
.IP

.TP
.B help
show this help message
.RE
.IP

.TP
\fB\-H, \-\-hold\fR
Specify the job is to be submitted in a held state (priority of zero).
A held job can now be released using scontrol to reset its priority
(e.g. "\fIscontrol release <job_id>\fR").
.IP
described below in the \fBfilename pattern\fR section.
.IP

.TP
\fB\-J\fR, \fB\-\-job\-name\fR=<\fIjobname\fR>
Specify a name for the job allocation. The specified name will appear along with
the job id number when querying running jobs on the system. The default
is the name of the batch script, or just "sbatch" if the script is
read on sbatch's standard input.
.IP

.TP
\fB\-\-kill\-on\-invalid\-dep\fR=<yes|no>
If a job has an invalid dependency and it can never run this parameter tells
Slurm to terminate it or not. A terminated job state will be JOB_CANCELLED.
If this option is not specified the system wide behavior applies.
By default the job stays pending with reason DependencyNeverSatisfied or if the
kill_invalid_depend is specified in slurm.conf the job is terminated.
.IP

.TP
\fB\-L\fR, \fB\-\-licenses\fR=<\fIlicense\fR>[@\fIdb\fR][:\fIcount\fR][,\fIlicense\fR[@\fIdb\fR][:\fIcount\fR]...]
Specification of licenses (or other resources available on all
nodes of the cluster) which must be allocated to this job.
License names can be followed by a colon and count
(the default count is one).
Multiple license names should be comma separated (e.g.
"\-\-licenses=foo:4,bar").
To submit jobs using remote licenses, those served by the slurmdbd, specify
the name of the server providing the licenses.
For example "\-\-license=nastran@slurmdb:12".

\fBNOTE\fR: When submitting heterogeneous jobs, license requests
may only be made on the first component job.
For example "sbatch \-L ansys:2 : script.sh".
.IP

.TP
\fB\-\-mail\-type\fR=<\fItype\fR>
Notify user by email when certain event types occur.
Valid \fItype\fR values are NONE, BEGIN, END, FAIL, REQUEUE, ALL (equivalent to
BEGIN, END, FAIL, INVALID_DEPEND, REQUEUE, and STAGE_OUT), INVALID_DEPEND
(dependency never satisfied), STAGE_OUT (burst buffer stage out and teardown
completed), TIME_LIMIT, TIME_LIMIT_90 (reached 90 percent of time limit),
TIME_LIMIT_80 (reached 80 percent of time limit), TIME_LIMIT_50 (reached 50
percent of time limit) and ARRAY_TASKS (send emails for each array task).
Multiple \fItype\fR values may be specified in a comma separated list.
NONE will suppress all event notifications, ignoring any other values specified.
By default no email notifications are sent.
The user to be notified is indicated with \fB\-\-mail\-user\fR.

Unless the ARRAY_TASKS option is specified, mail notifications on job BEGIN,
\fB\-\-mcs\-label\fR=<\fImcs\fR>
Used only when the mcs/group plugin is enabled.
This parameter is a group among the groups of the user.
Default value is calculated by the Plugin mcs if it's enabled.
.IP

.TP
\fB\-\-mem\fR=<\fIsize\fR>[\fIunits\fR]
Specify the real memory required per node.
Default units are megabytes.
Different units can be specified using the suffix [K|M|G|T].
Default value is \fBDefMemPerNode\fR and the maximum value is
\fBMaxMemPerNode\fR. If configured, both parameters can be
seen using the \fBscontrol show config\fR command.
This parameter would generally be used if whole nodes
are allocated to jobs (\fBSelectType=select/linear\fR).
Also see \fB\-\-mem\-per\-cpu\fR and \fB\-\-mem\-per\-gpu\fR.
The \fB\-\-mem\fR, \fB\-\-mem\-per\-cpu\fR and \fB\-\-mem\-per\-gpu\fR
options are mutually exclusive. If \fB\-\-mem\fR, \fB\-\-mem\-per\-cpu\fR or
\fB\-\-mem\-per\-gpu\fR are specified as command line arguments, then they will
take precedence over the environment.

\fBNOTE\fR: A memory size specification of zero is treated as a special case and
grants the job access to all of the memory on each node.

\fBNOTE\fR: Memory requests will not be strictly enforced unless Slurm is
configured to use an enforcement mechanism. See \fBConstrainRAMSpace\fR in
the \fBcgroup.conf\fR(5) man page and \fBOverMemoryKill\fR in the
\fBslurm.conf\fR(5) man page for more details.
.IP

.TP
\fB\-\-mem\-bind\fR=[{quiet|verbose},]<\fItype\fR>
Bind tasks to memory. Used only when the task/affinity plugin is enabled
and the NUMA memory functions are available.
\fBNote that the resolution of CPU and memory binding
may differ on some architectures.\fR For example, CPU binding may be performed
at the level of the cores within a processor while memory binding will
be performed at the level of nodes, where the definition of "nodes"
may differ from system to system.
By default no memory binding is performed; any task using any CPU can use
any memory. This option is typically used to ensure that each task is bound to
the memory closest to its assigned CPU. \fBThe use of any type other than
"none" or "local" is not recommended.\fR

\fBNOTE\fR: To have Slurm always report on the selected memory binding for
all commands executed in a shell, you can enable verbose mode by
setting the SLURM_MEM_BIND environment variable value to "verbose".

The following informational environment variables are set when
\fB\-\-mem\-bind\fR is in use:
.IP
.TP
.B help
show this help message
.IP

.TP
.B local
Use memory local to the processor in use
.IP

.TP
.B map_mem:<list>
Bind by setting memory masks on tasks (or ranks) as specified where <list> is
fR(5) man page for a full list of flags. The environment
variable takes precedence over the setting in the slurm.conf.
.IP

.TP
\fBSLURM_EXIT_ERROR\fR
Specifies the exit code generated when a Slurm error occurs
(e.g. invalid options).
This can be used by a script to distinguish application exit codes from
various Slurm error conditions.
.IP

.TP
\fBSLURM_STEP_KILLED_MSG_NODE_ID\fR=ID
If set, only the specified node will log when the job or step are killed
by a signal.
.IP

.TP
\fBSLURM_UMASK\fR
If defined, Slurm will use the defined \fIumask\fR to set permissions when
creating the output/error files for the job.
.IP

.SH "OUTPUT ENVIRONMENT VARIABLES"
.PP
The Slurm controller will set the following variables in the environment of
the batch script.

.TP
\fBSBATCH_MEM_BIND\fR
Set to value of the \fB\-\-mem\-bind\fR option.
.IP

.TP
\fBSBATCH_MEM_BIND_LIST\fR
Set to bit mask used for memory binding.
.IP

.TP
\fBSBATCH_MEM_BIND_PREFER\fR
Set to "prefer" if the \fB\-\-mem\-bind\fR option includes the prefer option.
.IP

.TP
\fBSBATCH_MEM_BIND_TYPE\fR
Set to the memory binding type specified with the \fB\-\-mem\-bind\fR option.

.TP
\fBSLURM_ARRAY_JOB_ID\fR
Job array's master job ID number.
.IP

.TP
\fBSLURM_ARRAY_TASK_COUNT\fR
Total number of tasks in a job array.
.IP

.TP
\fBSLURM_ARRAY_TASK_ID\fR
Job array ID (index) number.
.IP

.TP
\fBSLURM_ARRAY_TASK_MAX\fR
Job array's maximum ID (index) number.
.IP

.TP
\fBSLURM_ARRAY_TASK_MIN\fR
Job array's minimum ID (index) number.
.IP

.TP
\fBSLURM_ARRAY_TASK_STEP\fR
Job array's index step size.
.IP

.TP
\fBSLURM_CLUSTER_NAME\fR
Name of the cluster on which the job is executing.
.IP

.TP
\fBSLURM_CPUS_ON_NODE\fR
Number of CPUs allocated to the batch step.
\fBNOTE\fR: The \fBselect/linear\fR plugin allocates entire nodes to
jobs, so the value indicates the total count of CPUs on the node.
For the \fBcons/tres\fR plugin, this number
indicates the number of CPUs on this node allocated to the step.
.IP

.TP
\fBSLURM_CPUS_PER_GPU\fR
Number of CPUs requested per allocated GPU.
Only set if the \fB\-\-cpus\-per\-gpu\fR option is specified.
.IP

.TP
OCI id for job.
Only set if \fB\-\-container-id\fR is specified.
.IP

.TP
\fBSLURM_DIST_PLANESIZE\fR
Plane distribution size. Only set for plane distributions.
See \fB\-m, \-\-distribution\fR.
.IP

.TP
\fBSLURM_DISTRIBUTION\fR
Same as \fB\-m, \-\-distribution\fR
.IP

.TP
\fBSLURM_EXPORT_ENV\fR
Same as \fB\-\-export\fR.
.IP

.TP
\fBSLURM_GPU_BIND\fR
Requested binding of tasks to GPU.
Only set if the \fB\-\-gpu\-bind\fR option is specified.
.IP

.TP
\fBSLURM_GPU_FREQ\fR
Requested GPU frequency.
Only set if the \fB\-\-gpu\-freq\fR option is specified.
.IP

.TP
\fBSLURM_GPUS\fR
Number of GPUs requested.
Only set if the \fB\-G, \-\-gpus\fR option is specified.
.IP

.TP
\fBSLURM_GPUS_ON_NODE\fR
Number of GPUs allocated to the batch step.
.IP

.TP
\fBSLURM_GPUS_PER_NODE\fR
Requested GPU count per allocated node.
Only set if the \fB\-\-gpus\-per\-node\fR option is specified.
.IP

.TP
\fBSLURM_GPUS_PER_SOCKET\fR
Requested GPU count per allocated socket.
within the job (Abaqus and Ansys have been known to have problems when
it is set \- consult the appropriate documentation for 3rd party software).
.IP

.TP
\fBSLURM_HET_SIZE\fR
Set to count of components in heterogeneous job.
.IP

.TP
\fBSLURM_JOB_ACCOUNT\fR
Account name associated of the job allocation.
.IP

.TP
\fBSLURM_JOB_CPUS_PER_NODE\fR
Count of CPUs available to the job on the nodes in the allocation, using the
format \fICPU_count\fR[(x\fInumber_of_nodes\fR)][,\fICPU_count\fR
[(x\fInumber_of_nodes\fR)] ...].
For example: SLURM_JOB_CPUS_PER_NODE='72(x2),36' indicates that on the
first and second nodes (as listed by SLURM_JOB_NODELIST) the allocation
has 72 CPUs, while the third node has 36 CPUs.
\fBNOTE\fR: The \fBselect/linear\fR plugin allocates entire nodes to jobs, so
the value indicates the total count of CPUs on allocated nodes. The
\fBselect/cons_tres\fR plugin allocates individual
CPUs to jobs, so this number indicates the number of CPUs allocated to the job.
.IP

.TP
\fBSLURM_JOB_DEPENDENCY\fR
Set to value of the \fB\-\-dependency\fR option.
.IP

.TP
\fBSLURM_JOB_END_TIME\fR
The UNIX timestamp for a job's projected end time.
.IP

.TP
\fBSLURM_JOB_GPUS\fR
The global GPU IDs of the GPUs allocated to this job. The GPU IDs are not
relative to any device cgroup, even if devices are constrained with task/cgroup.
Only set in batch and interactive jobs.
.IP

.TP
\fBSLURM_JOB_ID\fR
The ID of the job allocation.
.IP

.TP
\fBSLURM_JOB_NAME\fR
\fBSLURM_JOB_PARTITION\fR
Name of the partition in which the job is running.
.IP

.TP
\fBSLURM_JOB_QOS\fR
Quality Of Service (QOS) of the job allocation.
.IP

.TP
\fBSLURM_JOB_RESERVATION\fR
Advanced reservation containing the job allocation, if any.
.IP

.TP
\fBSLURM_JOB_START_TIME\fR
The UNIX timestamp for a job's start time.
.IP

.TP
\fBSLURM_JOBID\fR
The ID of the job allocation. See \fBSLURM_JOB_ID\fR. Included for backwards
compatibility.
.IP

.TP
\fBSLURM_LOCALID\fR
Node local task ID for the process within a job.
.IP

.TP
\fBSLURM_MEM_PER_CPU\fR
Same as \fB\-\-mem\-per\-cpu\fR
.IP

.TP
\fBSLURM_MEM_PER_GPU\fR
Requested memory per allocated GPU.
Only set if the \fB\-\-mem\-per\-gpu\fR option is specified.
.IP

.TP
\fBSLURM_MEM_PER_NODE\fR
Same as \fB\-\-mem\fR
.IP

.TP
\fBSLURM_NNODES\fR
Total number of nodes in the job's resource allocation. See
\fBSLURM_JOB_NUM_NODES\fR. Included for backwards compatibility.
.IP

the \fB\-\-ntasks\-per\-node\fR or \fB\-\-ntasks\-per\-gpu\fR options are
specified, set to the number of tasks in the job.
See \fBSLURM_NTASKS\fR. Included for backwards compatibility.
.IP

.TP
\fBSLURM_NTASKS\fR
Set to value of the \fB\-\-ntasks\fR option, if specified. Or, if either of
the \fB\-\-ntasks\-per\-node\fR or \fB\-\-ntasks\-per\-gpu\fR options are
specified, set to the number of tasks in the job.
.IP

.TP
\fBSLURM_NTASKS_PER_CORE\fR
Number of tasks requested per core.
Only set if the \fB\-\-ntasks\-per\-core\fR option is specified.

.IP

.TP
\fBSLURM_NTASKS_PER_GPU\fR
Number of tasks requested per GPU.
Only set if the \fB\-\-ntasks\-per\-gpu\fR option is specified.
.IP

.TP
\fBSLURM_NTASKS_PER_NODE\fR
Number of tasks requested per node.
Only set if the \fB\-\-ntasks\-per\-node\fR option is specified.
.IP

.TP
\fBSLURM_NTASKS_PER_SOCKET\fR
Number of tasks requested per socket.
Only set if the \fB\-\-ntasks\-per\-socket\fR option is specified.
.IP

.TP
\fBSLURM_OVERCOMMIT\fR
Set to \fB1\fR if \fB\-\-overcommit\fR was specified.
.IP

.TP
\fBSLURM_PRIO_PROCESS\fR
The scheduling priority (nice value) at the time of job submission.
This value is propagated to the spawned processes.
.IP

.TP
\fBSLURM_PROCID\fR
The MPI rank (or relative process ID) of the current process
.IP
\fBSLURM_SHARDS_ON_NODE\fR
Number of GPU Shards available to the step on this node.
.IP

.TP
\fBSLURM_SUBMIT_DIR\fR
The directory from which \fBsbatch\fR was invoked.
.IP

.TP
\fBSLURM_SUBMIT_HOST\fR
The hostname of the computer from which \fBsbatch\fR was invoked.
.IP

.TP
\fBSLURM_TASK_PID\fR
The process ID of the task being started.
.IP

.TP
\fBSLURM_TASKS_PER_NODE\fR
Number of tasks to be initiated on each node. Values are
comma separated and in the same order as SLURM_JOB_NODELIST.
If two or more consecutive nodes are to have the same task
count, that count is followed by "(x#)" where "#" is the
repetition count. For example, "SLURM_TASKS_PER_NODE=2(x3),1"
indicates that the first three nodes will each execute two
tasks and the fourth node will execute one task.
.IP

.TP
\fBSLURM_THREADS_PER_CORE\fR
This is only set if \fB\-\-threads\-per\-core\fR or
\fBSBATCH_THREADS_PER_CORE\fR were specified. The value will be set to the
value specified by \fB\-\-threads\-per\-core\fR or
\fBSBATCH_THREADS_PER_CORE\fR. This is used by subsequent srun calls within the
job allocation.
.IP

.TP
\fBSLURM_TOPOLOGY_ADDR\fR
This is set only if the system has the topology/tree plugin
configured. The value will be set to the names network switches
which may be involved in the job's communications from the
system's top level switch down to the leaf switch and ending with
node name. A period is used to separate each hardware component name.
.IP

.TP
\fBSLURM_TOPOLOGY_ADDR_PATTERN\fR
This is set only if the system has the topology/tree plugin
configured. The value will be set component types listed in
Name of the node running the job script.
.IP

.SH "EXAMPLES"

.TP
Specify a batch script by filename on the command line. \
The batch script specifies a 1 minute time limit for the job.
.IP
.nf
$ cat myscript
#!/bin/sh
#SBATCH \-\-time=1
srun hostname |sort

$ sbatch \-N4 myscript
salloc: Granted job allocation 65537

$ cat slurm\-65537.out
host1
host2
host3
host4
.fi

.TP
Pass a batch script to sbatch on standard input:
.IP
.nf
$ sbatch \-N4 <<EOF
> #!/bin/sh
> srun hostname |sort
> EOF
sbatch: Submitted batch job 65541

$ cat slurm\-65541.out
host1
host2
host3
host4
.fi

.TP
To create a heterogeneous job with 3 components, each allocating a unique set \
of nodes:
.IP
.nf
$ sbatch \-w node[2\-3] : \-w node4 : \-w node[5\-7] work.bash
Submitted batch job 34987
.fi

.SH "COPYING"
.LP
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.

.SH "SEE ALSO"
.LP
\fBsinfo\fR(1), \fBsattach\fR(1), \fBsalloc\fR(1), \fBsqueue\fR(1), \fBscancel\fR(1), \fBscontrol\fR(1),
\fBslurm.conf\fR(5), \fBsched_setaffinity\fR (2), \fBnuma\fR (3)