# Custom Slurm settings for AWS PCS clusters The following custom Slurm settings are supported at the cluster level: + [AccountingStorageEnforce](https://slurm.schedmd.com/slurm.conf.html#OPT_AccountingStorageEnforce) + [AccountingStorageTRES](https://slurm.schedmd.com/slurm.conf.html#OPT_AccountingStorageTRES) + [AccountingStoreFlags](https://slurm.schedmd.com/slurm.conf.html#OPT_AccountingStoreFlags) + [AuthAltParameters](https://slurm.schedmd.com/slurm.conf.html#OPT_AuthAltParameters) + [CliFilterParameters](https://slurm.schedmd.com/slurm.conf.html#OPT_CliFilterParameters) **Note** For more information on CLI Filters in AWS PCS, see [Configure Slurm CLI Filter Plugins on an AWS PCS cluster](slurm-cli-filter-plugins-configure.md). + [CliFilterPlugins](https://slurm.schedmd.com/slurm.conf.html#OPT_CliFilterPlugins) **Note** For more information on CLI Filters in AWS PCS, see [Configure Slurm CLI Filter Plugins on an AWS PCS cluster](slurm-cli-filter-plugins-configure.md). + [CommunicationParameters](https://slurm.schedmd.com/slurm.conf.html#OPT_CommunicationParameters) **Important** AWS PCS disables the HTTP endpoint by default. To enable it, specify `enable_http`. + [DefMemPerCPU](https://slurm.schedmd.com/slurm.conf.html#OPT_DefMemPerCPU) + [Epilog](https://slurm.schedmd.com/slurm.conf.html#OPT_Epilog_1) + [EnforcePartLimits](https://slurm.schedmd.com/slurm.conf.html#OPT_EnforcePartLimits) + [FairShareDampeningFactor](https://slurm.schedmd.com/slurm.conf.html#OPT_FairShareDampeningFactor) + [FirstJobId](https://slurm.schedmd.com/slurm.conf.html#OPT_FirstJobId) + [HealthCheckInterval](https://slurm.schedmd.com/slurm.conf.html#OPT_HealthCheckInterval) + [HealthCheckNodeState](https://slurm.schedmd.com/slurm.conf.html#OPT_HealthCheckNodeState) **Note** AWS PCS supports the `REBOOT_ONLY` value, which runs the `HealthCheckProgram` only after a node reboot, on Slurm version 26.05 and later. `REBOOT_ONLY` is mutually exclusive with any other value. + [HealthCheckProgram](https://slurm.schedmd.com/slurm.conf.html#OPT_HealthCheckProgram) + [JobRequeue](https://slurm.schedmd.com/slurm.conf.html#OPT_JobRequeue) + [LaunchParameters](https://slurm.schedmd.com/slurm.conf.html#OPT_LaunchParameters) + [Licenses](https://slurm.schedmd.com/slurm.conf.html#OPT_Licenses) + [MetricsType](https://slurm.schedmd.com/slurm.conf.html#OPT_MetricsType) **Note** For more information on Metrics in AWS PCS, see [Slurm metrics in AWS PCS](slurm-metrics.md). + [MinJobAge](https://slurm.schedmd.com/slurm.conf.html#OPT_MinJobAge) **Note** AWS PCS supports a minimum value of 5 seconds for `MinJobAge`. + [OverTimeLimit](https://slurm.schedmd.com/slurm.conf.html#OPT_OverTimeLimit) + [PreemptExemptTime](https://slurm.schedmd.com/slurm.conf.html#OPT_PreemptExemptTime) + [PreemptMode](https://slurm.schedmd.com/slurm.conf.html#OPT_PreemptMode) + [PreemptParameters](https://slurm.schedmd.com/slurm.conf.html#OPT_PreemptParameters) + [PreemptType](https://slurm.schedmd.com/slurm.conf.html#OPT_PreemptType) + [PriorityCalcPeriod](https://slurm.schedmd.com/slurm.conf.html#OPT_PriorityCalcPeriod) + [PriorityDecayHalfLife](https://slurm.schedmd.com/slurm.conf.html#OPT_PriorityDecayHalfLife) + [PriorityFavorSmall](https://slurm.schedmd.com/slurm.conf.html#OPT_PriorityFavorSmall) + [PriorityFlags](https://slurm.schedmd.com/slurm.conf.html#OPT_PriorityFlags) + [PriorityMaxAge](https://slurm.schedmd.com/slurm.conf.html#OPT_PriorityMaxAge) + [PriorityUsageResetPeriod](https://slurm.schedmd.com/slurm.conf.html#OPT_PriorityUsageResetPeriod) + [PriorityWeightAge](https://slurm.schedmd.com/slurm.conf.html#OPT_PriorityWeightAge) + [PriorityWeightAssoc](https://slurm.schedmd.com/slurm.conf.html#OPT_PriorityWeightAssoc) + [PriorityWeightFairshare](https://slurm.schedmd.com/slurm.conf.html#OPT_PriorityWeightFairshare) + [PriorityWeightJobSize](https://slurm.schedmd.com/slurm.conf.html#OPT_PriorityWeightJobSize) + [PriorityWeightPartition](https://slurm.schedmd.com/slurm.conf.html#OPT_PriorityWeightPartition) + [PriorityWeightQOS](https://slurm.schedmd.com/slurm.conf.html#OPT_PriorityWeightQOS) + [PriorityWeightTRES](https://slurm.schedmd.com/slurm.conf.html#OPT_PriorityWeightTRES) + [PrivateData](https://slurm.schedmd.com/slurm.conf.html#OPT_PrivateData) + [Prolog](https://slurm.schedmd.com/slurm.conf.html#OPT_Prolog_1) + [PrologFlags](https://slurm.schedmd.com/slurm.conf.html#OPT_PrologFlags) **Note** To use `X11` forwarding (that is, when you enable the `X11` flag on PrologFlags), the xauth utility must be installed on the compute node group AMI (the worker AMI). Without it, `X11` forwarding does not work. On Amazon Linux, xauth is provided by the `xorg-x11-xauth` package. To install it, use the system package manager, for example `sudo yum install xorg-x11-xauth`. + [RequeueExit](https://slurm.schedmd.com/slurm.conf.html#OPT_RequeueExit) + [RequeueExitHold](https://slurm.schedmd.com/slurm.conf.html#OPT_RequeueExitHold) + [SchedulerParameters](https://slurm.schedmd.com/slurm.conf.html#OPT_SchedulerParameters) + [SelectTypeParameters](https://slurm.schedmd.com/slurm.conf.html#OPT_SelectTypeParameters) **Note** AWS PCS supports the `CR_Socket` and `CR_Socket_Memory` values on Slurm version 25.11 and later. + [SlurmctldParameters](https://slurm.schedmd.com/slurm.conf.html#OPT_SlurmctldParameters) **Note** AWS PCS supports the `enable_stepmgr` value. It requires `PrologFlags` to be unset or to include `Contain`. + [SrunPortRange](https://slurm.schedmd.com/slurm.conf.html#OPT_SrunPortRange) + [TaskEpilog](https://slurm.schedmd.com/slurm.conf.html#OPT_TaskEpilog) + [TaskPluginParam](https://slurm.schedmd.com/slurm.conf.html#OPT_TaskPluginParam) + [TaskProlog](https://slurm.schedmd.com/slurm.conf.html#OPT_TaskProlog) + [TrackWCKey](https://slurm.schedmd.com/slurm.conf.html#OPT_TrackWCKey) + [UnkillableStepProgram](https://slurm.schedmd.com/slurm.conf.html#OPT_UnkillableStepProgram) + [UnkillableStepTimeout](https://slurm.schedmd.com/slurm.conf.html#OPT_UnkillableStepTimeout)