HP XC System 3.x Software specs

•Use the bjobs command to monitor job status in LSF-HPC.

•Use the bqueues command to list the configured job queues in LSF-HPC.

How LSF-HPC and SLURM Launch and Manage a Job

This section describes what happens in the HP XC system when a job is submitted to LSF-HPC. Figure 9-1illustrates this process. Use the numbered steps in the text and depicted in the illustration as an aid to understanding the process.

Consider the HP XC system configuration shown in Figure 9-1, in which lsfhost.localdomain is the virtual IP name assigned to the LSF execution host, node n16 is the login node, and nodes n[1-10]are compute nodes in the lsf partition. All nodes contain two cores, providing 20 cores for use by LSF-HPC jobs.

Figure 9-1 How LSF-HPC and SLURM Launch and Manage a Job

User

1

N16

N166

Login node

$ bsub-n4 -ext ”SLURM[nodes-4]” -o output.out./myscript

2

lsfhost.localdomain

LSF Execution Host

job_starter.sh

$srun -nl myscript

4	3

SLURM_JOBID=53

SLURM_NPROCS=4

N2

6

hostname Compute Node

n2

7

	N1	5	Compute Node			N3
			Compute Node
			myscript		6
			myscript		6
$	hostname		$ hostname		hostname
	n1		$ srun hostname	srun	hostname	Compute Node
			$ mpirun -srun ./hellompi		n3
					n3

67

hostname

N4

n16

7hostname Compute Node n4

7

1.A user logs in to login node n16.

2.The user executes the following LSF bsub command on login node n16:

$ bsub -n4 -ext "SLURM[nodes=4]" -o output.out ./myscript

Using LSF-HPC 73

Image 73

HP XC System 3.x Software manual How LSF-HPC and Slurm Launch and Manage a Job

Contents

HP XC System Software Users Guide Page Table of Contents Developing Applications Configuring Your Environment with ModulefilesSubmitting Jobs Using Slurm Tuning ApplicationsUsing LSF Debugging Applications Examples Advanced TopicsGlossary 109 Index 115 List of Figures Page Determining the Node Platform List of TablesPage Submitting a Job Script List of ExamplesPage Intended Audience About This DocumentDocument Organization This document is organized as follows HP XC Information For More Information $ man lsfcommandnameSupplementary Information Manpages Related Information$ man discover $ man 8 discover $ man -k keyword Related MPI Web Sites Related Linux Web SitesRelated Compiler Web Sites Additional Publications HP Encourages Your Comments Typographic ConventionsEnvironment Variable User input System Architecture Overview of the User EnvironmentHP XC System Software Operating System Storage and I/O Node Specialization SAN Storage File SystemLocal Storage File System Layout System Interconnect Network Determining System Configuration InformationNetwork Address Translation NAT User Environment CommandsModules Run-Time Environment Application Development EnvironmentParallel Applications Serial Applications Standard LSF Load Sharing Facility LSF-HPCHow LSF-HPC and Slurm Interact Components, Tools, Compilers, Libraries, and Debuggers Mpirun command LVS Login Routing Using the SystemUsing the Secure Shell to Log Logging In to the System Getting Information About Queues IntroductionGetting Information About Resources Performing Other Common User Tasks $ man sinfo Getting System Help and Information Overview of Modules Configuring Your Environment with Modulefiles Supplied Modulefiles Viewing Available Modulefiles Modulefiles Automatically Loaded on the SystemViewing Loaded Modulefiles Loading a Modulefile Unloading a Modulefile Automatically Loading a Modulefile at LoginModulefile Conflicts Loading a Modulefile for the Current Session Viewing Modulefile-Specific Help Creating a Modulefile$ module load modules $ man modulefile $ module help totalviewPage Application Development Environment Overview Developing ApplicationsCompilers Interrupting a Job Examining Nodes and Partitions Before Running JobsMPI Compiler Partition Avail Timelimit Nodes State Nodelist Developing Serial Applications Setting Debugging OptionsSerial Application Build Environment Building Serial Applications Parallel Application Build Environment Developing Parallel ApplicationsModulefiles OpenMP Quadrics Shmem PthreadsMPI Library Intel Fortran and C/C++Compilers Building Parallel Applications Designing Libraries for the CP4000 Platform Developing LibrariesExamples of Compiling and Linking HP-MPI Applications Linkcommand 64-bit -L/opt/mypackage/lib/x8664 -lmystuff Linkcommand 32-bit -L/opt/mypackage/lib/i686 -lmystuffTo build a 64-bit application, you might enter Overview of Job Submission Submitting JobsExtSLURMslurm-arguments Submitting a Serial Job Using LSF-HPC Submitting a Serial Job Using Standard LSFSubmitting a Serial Job with the LSF bsub Command $ bsub hostname Submitting a Serial Job Through Slurm only $ bsub -n4 -I srun hostname Submitting a Non-MPI Parallel JobBsub -nnum-procsbsub-optionsmpijob Mpirun mpirun--options-srunsrun-optionsmpi-jobname $ bsub -n4 -I mpirun -srun ./helloworld Submitting a Batch Job or Job ScriptBsub -nnum-procs bsub-optionsscript-name Srun hostname mpirun -srun hellompi $ cat myscript.sh #!/bin/sh$ bsub -I -n4 Myscript.sh $ bsub -n4 -ext SLURMnodes=4 -I ./myscript.sh $ bsub -n4 -I ./myscript.sh Running Preexecution Programs$ cat ./envscript.sh #!/bin/sh name=`hostname` Opt/hptc/bin/srun Mypreexec Debugging Serial Applications Debugging ApplicationsDebugging Parallel Applications TotalView Using TotalView with Slurm Setting Up TotalViewSSH and TotalView Module load mpimodule load totalview Setting TotalView Preferences Using TotalView with LSF-HPCDebugging an Application Debugging Running Applications Sourcefile initfdte.f was not found, using assembler modeDirectories in File ⇒ Search Path $ mpirun -srun -n2 Psimple Exiting TotalView $ scancel --user username$ squeue Page Using the Intel Trace Collector and Intel Trace Analyzer Tuning ApplicationsBuilding a Program Intel Trace Collector and HP-MPI Visualizing Data Intel Trace Analyzer and HP-MPI Running a Program Intel Trace Collector and HP-MPILibs Cldflags Using the Intel Trace Collector and Intel Trace Analyzer Page Launching Jobs with the srun Command Using SlurmSrun Squeue Scancel Sinfo Scontrol Introduction to Slurm Using the srun Command with HP-MPI Monitoring Jobs with the squeue CommandUsing the srun Command with LSF-HPC Srun Roles and Modes Getting System Information with the sinfo Command Terminating Jobs with the scancel CommandJob Accounting Security Fault Tolerance# chmod a+r /hptccluster/slurm/job/jobacct.log Using Standard LSF on an HP XC System Using LSFUsing LSF-HPC Overview of LSF-HPC Introduction to LSF-HPC in the HP XC Environment Hostname Differences Between LSF-HPC and Standard LSFResources Hostname Status JL/U MAX Njobs RUN Ssusp Ususp RSV $ ssh n15 lshosts Job TerminologyUnknown Unknown SLURMnodelist =nodelist if specified HP XCCompute Node Resource Support $ bsub -n 10 -ext SLURMnodes=10 -I srun hostname $ bsub -n 10 -I srun hostname$ bsub -n 10 -ext SLURMnodes=10exclude=n16 -I srun hostname $ bsub -n 10 -ext SLURMconstraint=dualcore -I srun hostname $ bsub -n4 -ext SLURMnodes=4 -o output.out ./myscript How LSF-HPC and Slurm Launch and Manage a Job #!/bin/sh hostname srun hostname Mpirun -srun ./hellompi Job Startup and Job Control Determining Available LSF-HPC System Resources Determining the LSF Execution HostGetting the Status of LSF-HPC Getting Information About LSF Execution Host Node Examining LSF-HPC System Queues Getting Host Load InformationGetting Information About the lsf Partition SLINUX6 $ sinfo -p lsf Summary of the LSF bsub Command Format$ sinfo -p lsf -lNe For information about running scripts LSF-SLURM External SchedulerBsub -n num-procs-ext SLURMslurm-arguments \ Bsub-options srun srun-optionsjobname job-options Starting on lsfhost.localdomain n6 Submitting a Job from a Non-HP XC HostWaiting for dispatch ... Starting on lsfhost.localdomain n1 Type=SLINUX64 Getting Job Allocation Information Getting Information About JobsSlurmid=slurmjobidncpus=slurmnprocsslurmalloc=nodelist $ bjobs -l $ bhist -l Examining the Status of a JobTime stamp $ bjobs $ bhist Viewing the Historical Information for a JobSummary of time in seconds spent Various States Jobid User Jobname Pend Psusp RUN Ususp Ssusp Unkwn Total Translating Slurm and LSF-HPC JOBIDs $ bsub -I -n4 -ext SLURMnodes=4 /bin/bash Working Interactively Within an LSF-HPC Allocation$ bjobs -l 124 grep slurm $ srun --jobid=150 hostname Alternatively, you can use the following $ unset Slurmjobid$ export SLURMJOBID=150 $ export SLURMNPROCS=4 $ unset Slurmjobid $ unset Slurmnprocs LSF-HPC Equivalents of Slurm srun Options Job 125 is submitted to the default queue normal$ srun --jobid=250 uptime $ bsub -n4 -ext SLURMnodes=4 -o %J.out sleep Bsub -iinputfile Mpi=mpitype Quit-on-interrupt Page Enabling Remote Execution with OpenSSH Advanced TopicsRunning an X Terminal Session from a Remote Node Determining IP Address of Your Local Machine Running an X terminal Session Using LSF-HPC Running an X terminal Session Using SlurmLogging in to HP XC System $ bsub -n4 -Ip srun -n1 xterm -display Using the GNU Parallel Make Capability$ srun -n4 hostname n46 $ srun -n2 hostname n46 $ cd subdir srun -n1 -N1 $MAKE -j4 $ make PREFIX=’srun -n1 -N1 MAKEJ=-j4 Example Procedure Performance Considerations Local Disks on Compute NodesModified Makefile is invoked as follows $ make PREFIX=srun -n1 -N1 MAKEJ=-j4 Shared File View Communication Between NodesPrivate File View Fp = fopen myfile, a+Page Building and Running a Serial Application Appendix a ExamplesLaunching a Serial Interactive Shell Through LSF-HPC Examine the LSF execution host information Running LSF-HPC Jobs with a Slurm Allocation Request Example 2. Four cores on Two Specific Nodes Launching a Parallel Interactive Shell Through LSF-HPCR15s r1m r15m It tmp swp mem LoadSched LoadStop SLURMnodes=2 $ hostname n16 $ srun hostname n5 $ bjobs Examine the the running jobs information124 Lsfad Examine the the finished jobs information Submitting a Simple Job Script with LSF-HPCShow the environment Display the script Submitting an Interactive Job with LSF-HPC Run some commands from the pseudo-terminalSubmit the job Show the job allocation Exit the pseudo-terminal Submitting an HP-MPI Job with LSF-HPCView the interactive jobs View the finished jobs View the finished job View the running jobLsfhost.localdomai States by date and time Using a Resource Requirements String in an LSF-HPC Command$ bsub -n 8 -R ALPHA5 SLINUX64 \ -ext SLURMnodes=4-4 myjob 108 Glossary First-come See Fcfs First-served Global storage To the queueAs local storage Are not appropriate for replication Login requests and directs them to a node with a login role Single commandLinux Virtual See LVS Server Load file LSF master host Remotely. PXE booting is configured at the Bios level Network See NIS Information ServicesNotably to install and remove software packages Slurm backup Ssh Power available per unit of spaceSymmetric See SMP Multiprocessing 114 Index Index PGI Utilities, 63 Slurm commands