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scrun(1) Slurm Commands scrun(1) NAME scrun - an OCI runtime proxy for Slurm. SYNOPSIS Create Operation scrun [GLOBAL OPTIONS...] create [CREATE OPTIONS] <container-id> Prepares a new container with container-id in current working directory. Start Operation scrun [GLOBAL OPTIONS...] start <container-id> Request to start and run container in job. Query State Operation scrun [GLOBAL OPTIONS...] state <container-id> Output OCI defined JSON state of container. Kill Operation scrun [GLOBAL OPTIONS...] kill <container-id> [signal] Send signal (default: SIGTERM) to container. Delete Operation scrun [GLOBAL OPTIONS...] delete [DELETE OPTIONS] <container-id> Release any resources held by container locally and remotely. Perform OCI runtime operations against container-id per: https://github.com/opencontainers/runtime-spec/blob/main/runtime.md scrun attempts to mimic the commandline behavior as closely as possible to crun and runc in order to maintain in place replacement compatibil- ity with DOCKER and podman. All commandline arguments for crun and runc will be accepted for compatibility but may be ignored depending on their applicability. DESCRIPTION scrun is an OCI runtime proxy for Slurm. It acts as a common interface to DOCKER or podman to allow container operations to be executed under Slurm as jobs. scrun will accept all commands as an OCI compliant run- time but will proxy the container and all STDIO to Slurm for scheduling and execution. The containers will be executed remotely on Slurm com- pute nodes according to settings in oci.conf(5). scrun requires all containers to be OCI image compliant per: https://github.com/opencontainers/image-spec/blob/main/spec.md RETURN VALUE On successful operation, scrun will return 0. For any other condition scrun will return any non-zero number to denote a error. GLOBAL OPTIONS --cgroup-manager Ignored. --debug Activate debug level logging. -f <slurm_conf_path> Use specified slurm.conf for configuration. Default: sysconfdir from configure during compilation --usage Show quick help on how to call scrun --log-format=<json|text> Optional select format for logging. May be "json" or "text". Default: text --root=<root_path> Path to spool directory to communication sockets and temporary directories and files. This should be a tmpfs and should be cleared on reboot. Default: /run/user/{user_id}/scrun/ --rootless Ignored. All scrun commands are always rootless. --systemd-cgroup Ignored. -v Increase logging verbosity. Multiple -v's increase verbosity. -V, --version Print version information and exit. CREATE OPTIONS -b <bundle_path>, --bundle=<bundle_path> Path to the root of the bundle directory. Default: caller's working directory --console-socket=<console_socket_path> Optional path to an AF_UNIX socket which will receive a file de- scriptor referencing the master end of the console's pseudoter- minal. Default: ignored --no-pivot Ignored. --no-new-keyring Ignored. --pid-file=<pid_file_path> Specify the file to lock and populate with process ID. Default: ignored --preserve-fds Ignored. DELETE OPTIONS --force Ignored. All delete requests are forced and will kill any run- ning jobs. INPUT ENVIRONMENT VARIABLES SCRUN_DEBUG=<quiet|fatal|error|info|verbose|debug|debug2|debug3|de- bug4|debug5> Set logging level. SCRUN_STDERR_DEBUG=<quiet|fatal|error|info|verbose|debug|debug2|de- bug3|debug4|debug5> Set logging level for standard error output only. SCRUN_SYSLOG_DEBUG=<quiet|fatal|error|info|verbose|debug|debug2|de- bug3|debug4|debug5> Set logging level for syslogging only. SCRUN_FILE_DEBUG=<quiet|fatal|error|info|verbose|debug|debug2|de- bug3|debug4|debug5> Set logging level for log file only. JOB INPUT ENVIRONMENT VARIABLES SCRUN_ACCOUNT See SLURM_ACCOUNT from srun(1). SCRUN_ACCTG_FREQ See SLURM_ACCTG_FREQ from srun(1). SCRUN_BURST_BUFFER See SLURM_BURST_BUFFER from srun(1). SCRUN_CLUSTER_CONSTRAINT See SLURM_CLUSTER_CONSTRAINT from srun(1). SCRUN_CLUSTERS See SLURM_CLUSTERS from srun(1). SCRUN_CONSTRAINT See SLURM_CONSTRAINT from srun(1). SLURM_CORE_SPEC See SLURM_ACCOUNT from srun(1). SCRUN_CPU_BIND See SLURM_CPU_BIND from srun(1). SCRUN_CPU_FREQ_REQ See SLURM_CPU_FREQ_REQ from srun(1). SCRUN_CPUS_PER_GPU See SLURM_CPUS_PER_GPU from srun(1). SCRUN_CPUS_PER_TASK See SRUN_CPUS_PER_TASK from srun(1). SCRUN_DELAY_BOOT See SLURM_DELAY_BOOT from srun(1). SCRUN_DEPENDENCY See SLURM_DEPENDENCY from srun(1). SCRUN_DISTRIBUTION See SLURM_DISTRIBUTION from srun(1). SCRUN_EPILOG See SLURM_EPILOG from srun(1). SCRUN_EXACT See SLURM_EXACT from srun(1). SCRUN_EXCLUSIVE See SLURM_EXCLUSIVE from srun(1). SCRUN_GPU_BIND See SLURM_GPU_BIND from srun(1). SCRUN_GPU_FREQ See SLURM_GPU_FREQ from srun(1). SCRUN_GPUS See SLURM_GPUS from srun(1). SCRUN_GPUS_PER_NODE See SLURM_GPUS_PER_NODE from srun(1). SCRUN_GPUS_PER_SOCKET See SLURM_GPUS_PER_SOCKET from salloc(1). SCRUN_GPUS_PER_TASK See SLURM_GPUS_PER_TASK from srun(1). SCRUN_GRES_FLAGS See SLURM_GRES_FLAGS from srun(1). SCRUN_GRES See SLURM_GRES from srun(1). SCRUN_HINT See SLURM_HIST from srun(1). SCRUN_JOB_NAME See SLURM_JOB_NAME from srun(1). SCRUN_JOB_NODELIST See SLURM_JOB_NODELIST from srun(1). SCRUN_JOB_NUM_NODES See SLURM_JOB_NUM_NODES from srun(1). SCRUN_LABELIO See SLURM_LABELIO from srun(1). SCRUN_MEM_BIND See SLURM_MEM_BIND from srun(1). SCRUN_MEM_PER_CPU See SLURM_MEM_PER_CPU from srun(1). SCRUN_MEM_PER_GPU See SLURM_MEM_PER_GPU from srun(1). SCRUN_MEM_PER_NODE See SLURM_MEM_PER_NODE from srun(1). SCRUN_MPI_TYPE See SLURM_MPI_TYPE from srun(1). SCRUN_NCORES_PER_SOCKET See SLURM_NCORES_PER_SOCKET from srun(1). SCRUN_NETWORK See SLURM_NETWORK from srun(1). SCRUN_NSOCKETS_PER_NODE See SLURM_NSOCKETS_PER_NODE from srun(1). SCRUN_NTASKS See SLURM_NTASKS from srun(1). SCRUN_NTASKS_PER_CORE See SLURM_NTASKS_PER_CORE from srun(1). SCRUN_NTASKS_PER_GPU See SLURM_NTASKS_PER_GPU from srun(1). SCRUN_NTASKS_PER_NODE See SLURM_NTASKS_PER_NODE from srun(1). SCRUN_NTASKS_PER_TRES See SLURM_NTASKS_PER_TRES from srun(1). SCRUN_OPEN_MODE See SLURM_MODE from srun(1). SCRUN_OVERCOMMIT See SLURM_OVERCOMMIT from srun(1). SCRUN_OVERLAP See SLURM_OVERLAP from srun(1). SCRUN_PARTITION See SLURM_PARTITION from srun(1). SCRUN_POWER See SLURM_POWER from srun(1). SCRUN_PROFILE See SLURM_PROFILE from srun(1). SCRUN_PROLOG See SLURM_PROLOG from srun(1). SCRUN_QOS See SLURM_QOS from srun(1). SCRUN_REMOTE_CWD See SLURM_REMOTE_CWD from srun(1). SCRUN_REQ_SWITCH See SLURM_REQ_SWITCH from srun(1). SCRUN_RESERVATION See SLURM_RESERVATION from srun(1). SCRUN_SIGNAL See SLURM_SIGNAL from srun(1). SCRUN_SLURMD_DEBUG See SLURMD_DEBUG from srun(1). SCRUN_SPREAD_JOB See SLURM_SPREAD_JOB from srun(1). SCRUN_TASK_EPILOG See SLURM_TASK_EPILOG from srun(1). SCRUN_TASK_PROLOG See SLURM_TASK_PROLOG from srun(1). SCRUN_THREAD_SPEC See SLURM_THREAD_SPEC from srun(1). SCRUN_THREADS_PER_CORE See SLURM_THREADS_PER_CORE from srun(1). SCRUN_THREADS See SLURM_THREADS from srun(1). SCRUN_TIMELIMIT See SLURM_TIMELIMIT from srun(1). SCRUN_TRES_BIND Same as --tres-bind SCRUN_TRES_PER_TASK See SLURM_TRES_PER_TASK from srun(1). SCRUN_UNBUFFEREDIO See SLURM_UNBUFFEREDIO from srun(1). SCRUN_USE_MIN_NODES See SLURM_USE_MIN_NODES from srun(1). SCRUN_WAIT4SWITCH See SLURM_WAIT4SWITCH from srun(1). SCRUN_WCKEY See SLURM_WCKEY from srun(1). SCRUN_WORKING_DIR See SLURM_WORKING_DIR from srun(1). OUTPUT ENVIRONMENT VARIABLES SCRUN_OCI_VERSION Advertised version of OCI compliance of container. SCRUN_CONTAINER_ID Value based as container_id during create operation. SCRUN_PID PID of process used to monitor and control container on alloca- tion node. SCRUN_BUNDLE Path to container bundle directory. SCRUN_SUBMISSION_BUNDLE Path to container bundle directory before modification by Lua script. SCRUN_ANNOTATION_* List of annotations from container's config.json. SCRUN_PID_FILE Path to pid file that is locked and populated with PID of scrun. SCRUN_SOCKET Path to control socket for scrun. SCRUN_SPOOL_DIR Path to workspace for all temporary files for current container. Purged by deletion operation. SCRUN_SUBMISSION_CONFIG_FILE Path to container's config.json file at time of submission. SCRUN_USER Name of user that called create operation. SCRUN_USER_ID Numeric ID of user that called create operation. SCRUN_GROUP Name of user's primary group that called create operation. SCRUN_GROUP_ID Numeric ID of user primary group that called create operation. SCRUN_ROOT See --root. SCRUN_ROOTFS_PATH Path to container's root directory. SCRUN_SUBMISSION_ROOTFS_PATH Path to container's root directory at submission time. SCRUN_LOG_FILE Path to scrun's log file during create operation. SCRUN_LOG_FORMAT Log format type during create operation. JOB OUTPUT ENVIRONMENT VARIABLES SLURM_*_HET_GROUP_# For a heterogeneous job allocation, the environment variables are set separately for each component. SLURM_CLUSTER_NAME Name of the cluster on which the job is executing. SLURM_CONTAINER OCI Bundle for job. SLURM_CONTAINER_ID OCI id for job. SLURM_CPUS_PER_GPU Number of CPUs requested per allocated GPU. SLURM_CPUS_PER_TASK Number of CPUs requested per task. SLURM_DIST_PLANESIZE Plane distribution size. Only set for plane distributions. SLURM_DISTRIBUTION Distribution type for the allocated jobs. SLURM_GPU_BIND Requested binding of tasks to GPU. SLURM_GPU_FREQ Requested GPU frequency. SLURM_GPUS Number of GPUs requested. SLURM_GPUS_PER_NODE Requested GPU count per allocated node. SLURM_GPUS_PER_SOCKET Requested GPU count per allocated socket. SLURM_GPUS_PER_TASK Requested GPU count per allocated task. SLURM_HET_SIZE Set to count of components in heterogeneous job. SLURM_JOB_ACCOUNT Account name associated of the job allocation. SLURM_JOB_CPUS_PER_NODE Count of CPUs available to the job on the nodes in the alloca- tion, using the format CPU_count[(xnumber_of_nodes)][,CPU_count [(xnumber_of_nodes)] ...]. 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 alloca- tion has 72 CPUs, while the third node has 36 CPUs. NOTE: The select/linear plugin allocates entire nodes to jobs, so the value indicates the total count of CPUs on allocated nodes. The select/cons_tres plugin allocates individual CPUs to jobs, so this number indicates the number of CPUs allocated to the job. SLURM_JOB_END_TIME The UNIX timestamp for a job's projected end time. SLURM_JOB_GPUS 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. SLURM_JOB_ID The ID of the job allocation. SLURM_JOB_NODELIST List of nodes allocated to the job. SLURM_JOB_NUM_NODES Total number of nodes in the job allocation. SLURM_JOB_PARTITION Name of the partition in which the job is running. SLURM_JOB_QOS Quality Of Service (QOS) of the job allocation. SLURM_JOB_RESERVATION Advanced reservation containing the job allocation, if any. SLURM_JOB_START_TIME UNIX timestamp for a job's start time. SLURM_MEM_BIND Bind tasks to memory. SLURM_MEM_BIND_LIST Set to bit mask used for memory binding. SLURM_MEM_BIND_PREFER Set to "prefer" if the SLURM_MEM_BIND option includes the prefer option. SLURM_MEM_BIND_TYPE Set to the memory binding type specified with the SLURM_MEM_BIND option. Possible values are "none", "rank", "map_mem:", "mask_mem:" and "local". SLURM_MEM_BIND_VERBOSE Set to "verbose" if the SLURM_MEM_BIND option includes the ver- bose option. Set to "quiet" otherwise. SLURM_MEM_PER_CPU Minimum memory required per usable allocated CPU. SLURM_MEM_PER_GPU Requested memory per allocated GPU. SLURM_MEM_PER_NODE Specify the real memory required per node. SLURM_NTASKS Specify the number of tasks to run. SLURM_NTASKS_PER_CORE Request the maximum ntasks be invoked on each core. SLURM_NTASKS_PER_GPU Request that there are ntasks tasks invoked for every GPU. SLURM_NTASKS_PER_NODE Request that ntasks be invoked on each node. SLURM_NTASKS_PER_SOCKET Request the maximum ntasks be invoked on each socket. SLURM_OVERCOMMIT Overcommit resources. SLURM_PROFILE Enables detailed data collection by the acct_gather_profile plu- gin. SLURM_SHARDS_ON_NODE Number of GPU Shards available to the step on this node. SLURM_SUBMIT_HOST The hostname of the computer from which scrun was invoked. SLURM_TASKS_PER_NODE 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. SLURM_THREADS_PER_CORE This is only set if --threads-per-core or SCRUN_THREADS_PER_CORE were specified. The value will be set to the value specified by --threads-per-core or SCRUN_THREADS_PER_CORE. This is used by subsequent srun calls within the job allocation. SLURM_TRES_PER_TASK Set to the value of --tres-per-task. If --cpus-per-task or --gpus-per-task is specified, it is also set in SLURM_TRES_PER_TASK as if it were specified in --tres-per-task. SCRUN.LUA /etc/slurm/scrun.lua must be present on any node where scrun will be invoked. scrun.lua must be a compliant lua script. Required functions The following functions must be defined. • function slurm_scrun_stage_in(id, bundle, spool_dir, config_file, job_id, user_id, group_id, job_env) Called right after job allocation to stage container into job node(s). Must return SLURM.success or job will be cancelled. It is required that function will prepare the container for execu- tion on job node(s) as required to run as configured in oci.conf(1). The function may block as long as required until container has been fully prepared (up to the job's max wall time). id Container ID bundle OCI bundle path spool_dir Temporary working directory for container config_file Path to config.json for container job_id jobid of job allocation user_id Resolved numeric user id of job allocation. It is generally expected that the lua script will be executed inside of a user namespace running under the root(0) user. group_id Resolved numeric group id of job allocation. It is generally expected that the lua script will be executed inside of a user namespace running under the root(0) group. job_env Table with each entry of Key=Value or Value of each environ- ment variable of the job. • function slurm_scrun_stage_out(id, bundle, orig_bundle, root_path, orig_root_path, spool_dir, config_file, jobid, user_id, group_id) Called right after container step completes to stage out files from job nodes. Must return SLURM.success or job will be can- celled. It is required that function will pull back any changes and cleanup the container on job node(s). The function may block as long as required until container has been fully pre- pared (up to the job's max wall time). id Container ID bundle OCI bundle path orig_bundle Originally submitted OCI bundle path before modification by set_bundle_path(). root_path Path to directory root of container contents. orig_root_path Original path to directory root of container contents before modification by set_root_path(). spool_dir Temporary working directory for container config_file Path to config.json for container job_id jobid of job allocation user_id Resolved numeric user id of job allocation. It is generally expected that the lua script will be executed inside of a user namespace running under the root(0) user. group_id Resolved numeric group id of job allocation. It is generally expected that the lua script will be executed inside of a user namespace running under the root(0) group. Provided functions The following functions are provided for any Lua function to call as needed. • slurm.set_bundle_path(PATH) Called to notify scrun to use PATH as new OCI container bundle path. Depending on the filesystem layout, cloning the container bundle may be required to allow execution on job nodes. • slurm.set_root_path(PATH) Called to notify scrun to use PATH as new container root filesystem path. Depending on the filesystem layout, cloning the container bundle may be required to allow execution on job nodes. Script must also update #/root/path in config.json when changing root path. • STATUS,OUTPUT = slurm.remote_command(SCRIPT) Run SCRIPT in new job step on all job nodes. Returns numeric job status as STATUS and job stdio as OUTPUT. Blocks until SCRIPT exits. • STATUS,OUTPUT = slurm.allocator_command(SCRIPT) Run SCRIPT as forked child process of scrun. Returns numeric job status as STATUS and job stdio as OUTPUT. Blocks until SCRIPT exits. • slurm.log(MSG, LEVEL) Log MSG at log LEVEL. Valid range of values for LEVEL is [0, 4]. • slurm.error(MSG) Log error MSG. • slurm.log_error(MSG) Log error MSG. • slurm.log_info(MSG) Log MSG at log level INFO. • slurm.log_verbose(MSG) Log MSG at log level VERBOSE. • slurm.log_verbose(MSG) Log MSG at log level VERBOSE. • slurm.log_debug(MSG) Log MSG at log level DEBUG. • slurm.log_debug2(MSG) Log MSG at log level DEBUG2. • slurm.log_debug3(MSG) Log MSG at log level DEBUG3. • slurm.log_debug4(MSG) Log MSG at log level DEBUG4. • MINUTES = slurm.time_str2mins(TIME_STRING) Parse TIME_STRING into number of minutes as MINUTES. Valid for- mats: • days-[hours[:minutes[:seconds]]] • hours:minutes:seconds • minutes[:seconds] • -1 • INFINITE • UNLIMITED Example scrun.lua scripts Full Container staging example using rsync: This full example will stage a container as given by docker or podman. The container's config.json is modified to remove un- wanted functions that may cause the container run to under crun or runc. The script uses rsync to move the container to a shared filesystem under the scratch_path variable. NOTE: Support for JSON in liblua must generally be installed be- fore Slurm is compiled. scrun.lua's syntax and ability to load JSON support should be tested by directly calling the script us- ing lua outside of Slurm. local json = require 'json' local open = io.open local scratch_path = "/run/user/" local function read_file(path) local file = open(path, "rb") if not file then return nil end local content = file:read "*all" file:close() return content end local function write_file(path, contents) local file = open(path, "wb") if not file then return nil end file:write(contents) file:close() return end function slurm_scrun_stage_in(id, bundle, spool_dir, config_file, job_id, user_id, group_id, job_env) slurm.log_debug(string.format("stage_in(%s, %s, %s, %s, %d, %d, %d)", id, bundle, spool_dir, config_file, job_id, user_id, group_id)) local status, output, user, rc local config = json.decode(read_file(config_file)) local src_rootfs = config["root"]["path"] rc, user = slurm.allocator_command(string.format("id -un %d", user_id)) user = string.gsub(user, "%s+", "") local root = scratch_path..math.floor(user_id).."/slurm/scrun/" local dst_bundle = root.."/"..id.."/" local dst_config = root.."/"..id.."/config.json" local dst_rootfs = root.."/"..id.."/rootfs/" if string.sub(src_rootfs, 1, 1) ~= "/" then -- always use absolute path src_rootfs = string.format("%s/%s", bundle, src_rootfs) end status, output = slurm.allocator_command("mkdir -p "..dst_rootfs) if (status ~= 0) then slurm.log_info(string.format("mkdir(%s) failed %u: %s", dst_rootfs, status, output)) return slurm.ERROR end status, output = slurm.allocator_command(string.format("/usr/bin/env rsync --exclude sys --exclude proc --numeric-ids --delete-after --ignore-errors --stats -a -- %s/ %s/", src_rootfs, dst_rootfs)) if (status ~= 0) then -- rsync can fail due to permissions which may not matter slurm.log_info(string.format("WARNING: rsync failed: %s", output)) end slurm.set_bundle_path(dst_bundle) slurm.set_root_path(dst_rootfs) config["root"]["path"] = dst_rootfs -- Always force user namespace support in container or runc will reject local process_user_id = 0 local process_group_id = 0 if ((config["process"] ~= nil) and (config["process"]["user"] ~= nil)) then -- resolve out user in the container if (config["process"]["user"]["uid"] ~= nil) then process_user_id=config["process"]["user"]["uid"] else process_user_id=0 end -- resolve out group in the container if (config["process"]["user"]["gid"] ~= nil) then process_group_id=config["process"]["user"]["gid"] else process_group_id=0 end -- purge additionalGids as they are not supported in rootless if (config["process"]["user"]["additionalGids"] ~= nil) then config["process"]["user"]["additionalGids"] = nil end end if (config["linux"] ~= nil) then -- force user namespace to always be defined for rootless mode local found = false if (config["linux"]["namespaces"] == nil) then config["linux"]["namespaces"] = {} else for _, namespace in ipairs(config["linux"]["namespaces"]) do if (namespace["type"] == "user") then found=true break end end end if (found == false) then table.insert(config["linux"]["namespaces"], {type= "user"}) end -- Provide default user map as root if one not provided if (true or config["linux"]["uidMappings"] == nil) then config["linux"]["uidMappings"] = {{containerID=process_user_id, hostID=math.floor(user_id), size=1}} end -- Provide default group map as root if one not provided -- mappings fail with build??? if (true or config["linux"]["gidMappings"] == nil) then config["linux"]["gidMappings"] = {{containerID=process_group_id, hostID=math.floor(group_id), size=1}} end -- disable trying to use a specific cgroup config["linux"]["cgroupsPath"] = nil end if (config["mounts"] ~= nil) then -- Find and remove any user/group settings in mounts for _, mount in ipairs(config["mounts"]) do local opts = {} if (mount["options"] ~= nil) then for _, opt in ipairs(mount["options"]) do if ((string.sub(opt, 1, 4) ~= "gid=") and (string.sub(opt, 1, 4) ~= "uid=")) then table.insert(opts, opt) end end end if (opts ~= nil and #opts > 0) then mount["options"] = opts else mount["options"] = nil end end -- Remove all bind mounts by copying files into rootfs local mounts = {} for i, mount in ipairs(config["mounts"]) do if ((mount["type"] ~= nil) and (mount["type"] == "bind") and (string.sub(mount["source"], 1, 4) ~= "/sys") and (string.sub(mount["source"], 1, 5) ~= "/proc")) then status, output = slurm.allocator_command(string.format("/usr/bin/env rsync --numeric-ids --ignore-errors --stats -a -- %s %s", mount["source"], dst_rootfs..mount["destination"])) if (status ~= 0) then -- rsync can fail due to permissions which may not matter slurm.log_info("rsync failed") end else table.insert(mounts, mount) end end config["mounts"] = mounts end -- Force version to one compatible with older runc/crun at risk of new features silently failing config["ociVersion"] = "1.0.0" -- Merge in Job environment into container -- this is optional! if (config["process"]["env"] == nil) then config["process"]["env"] = {} end for _, env in ipairs(job_env) do table.insert(config["process"]["env"], env) end -- Remove all prestart hooks to squash any networking attempts if ((config["hooks"] ~= nil) and (config["hooks"]["prestart"] ~= nil)) then config["hooks"]["prestart"] = nil end -- Remove all rlimits if ((config["process"] ~= nil) and (config["process"]["rlimits"] ~= nil)) then config["process"]["rlimits"] = nil end write_file(dst_config, json.encode(config)) slurm.log_info("created: "..dst_config) return slurm.SUCCESS end function slurm_scrun_stage_out(id, bundle, orig_bundle, root_path, orig_root_path, spool_dir, config_file, jobid, user_id, group_id) if (root_path == nil) then root_path = "" end slurm.log_debug(string.format("stage_out(%s, %s, %s, %s, %s, %s, %s, %d, %d, %d)", id, bundle, orig_bundle, root_path, orig_root_path, spool_dir, config_file, jobid, user_id, group_id)) if (bundle == orig_bundle) then slurm.log_info(string.format("skipping stage_out as bundle=orig_bundle=%s", bundle)) return slurm.SUCCESS end status, output = slurm.allocator_command(string.format("/usr/bin/env rsync --numeric-ids --delete-after --ignore-errors --stats -a -- %s/ %s/", root_path, orig_root_path)) if (status ~= 0) then -- rsync can fail due to permissions which may not matter slurm.log_info("rsync failed") else -- cleanup temporary after they have been synced backed to source slurm.allocator_command(string.format("/usr/bin/rm --preserve-root=all --one-file-system -dr -- %s", bundle)) end return slurm.SUCCESS end slurm.log_info("initialized scrun.lua") return slurm.SUCCESS SIGNALS SIGINT Attempt to gracefully cancel any related jobs (if any) and cleanup. SIGCHLD Wait for all children, cleanup anchor and gracefully shutdown. COPYING Copyright (C) 2023 SchedMD LLC. This file is part of Slurm, a resource management program. For de- tails, 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 op- tion) 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 slurm(1), oci.conf(5), srun(1), crun, runc, DOCKER and podman Slurm 25.11 Slurm Commands scrun(1)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | GLOBAL OPTIONS | CREATE OPTIONS | DELETE OPTIONS | INPUT ENVIRONMENT VARIABLES | JOB INPUT ENVIRONMENT VARIABLES | OUTPUT ENVIRONMENT VARIABLES | JOB OUTPUT ENVIRONMENT VARIABLES | SCRUN.LUA | SIGNALS | COPYING | SEE ALSO
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