HP XC System 3.x Software 9 Using LSF, 8 Using SLURM, 7 Tuning Applications, 6 Debugging Applications

Running Preexecution Programs...............................................................................................................	51
6 Debugging Applications
Debugging Serial Applications...............................................................................................................	53
Debugging Parallel Applications.............................................................................................................	53
Debugging with TotalView................................................................................................................	53
SSH and TotalView.....................................................................................................................	54
Setting Up TotalView...................................................................................................................	54
Using TotalView with SLURM........................................................................................................	54
Using TotalView with LSF-HPC......................................................................................................	55
Setting TotalView Preferences.......................................................................................................	55
Debugging an Application..........................................................................................................	55
Debugging Running Applications..................................................................................................	56
Exiting TotalView........................................................................................................................	57
7 Tuning Applications
Using the Intel Trace Collector and Intel Trace Analyzer..............................................................................	59
Building a Program — Intel Trace Collector and HP-MPI........................................................................	59
Running a Program – Intel Trace Collector and HP-MPI..........................................................................	60
Visualizing Data – Intel Trace Analyzer and HP-MPI..............................................................................	60
8 Using SLURM
Introduction to SLURM............................................................................................................................	63
SLURM Utilities.....................................................................................................................................	63
Launching Jobs with the srun Command...................................................................................................	63
The srun Roles and Modes................................................................................................................	64
The srun Roles............................................................................................................................	64
The srun Modes..........................................................................................................................	64
Using the srun Command with HP-MPI................................................................................................	64
Using the srun Command with LSF-HPC...............................................................................................	64
Monitoring Jobs with the squeue Command..............................................................................................	64
Terminating Jobs with the scancel Command............................................................................................	65
Getting System Information with the sinfo Command..................................................................................	65
Job Accounting.....................................................................................................................................	65
Fault Tolerance.....................................................................................................................................	66
Security...............................................................................................................................................	66
9 Using LSF
Using Standard LSF on an HP XC System.................................................................................................	67
Using LSF-HPC......................................................................................................................................	67
Introduction to LSF-HPC in the HP XC Environment................................................................................	68
Overview of LSF-HPC..................................................................................................................	68
Differences Between LSF-HPC and Standard LSF..............................................................................	69
Job Terminology.........................................................................................................................	70
HP XCCompute Node Resource Support........................................................................................	71
Notes on LSF-HPC.......................................................................................................................	72
How LSF-HPC and SLURM Launch and Manage a Job.....................................................................	73
Notes About Using LSF-HPC in the HP XC Environment....................................................................	74
Job Startup and Job Control....................................................................................................	74
Preemption...........................................................................................................................	75
Determining the LSF Execution Host....................................................................................................	75
Determining Available LSF-HPC System Resources.................................................................................	75
Getting the Status of LSF-HPC.......................................................................................................	75
Getting Information About LSF Execution Host Node.......................................................................	75
Getting Host Load Information......................................................................................................	76
Examining LSF-HPC System Queues...............................................................................................	76

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