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8 Tuning Applications
This chapter discusses how to tune applications in the HP XC environment.
8.1 Using the Intel Trace Collector and Intel Trace Analyzer
This section describes how to use the Intel Trace Collector (ITC) and Intel Trace Analyzer (ITA)
with HP-MPI on an HP XC system. The Intel Trace Collector/Analyzer were formerly known as
VampirTrace and Vampir, respectively. This section addresses the following topics:
• “Building a Program — Intel Trace Collector and HP-MPI” (page 75)
• “Running a Program – Intel Trace Collector and HP-MPI” (page 76)
• “Using the Intel Trace Collector and Intel Trace Analyzer” (page 75)
• “Visualizing Data – Intel Trace Analyzer and HP-MPI” (page 79)
The following Intel Trace Collector/Analyzer documentation is available on the HP XC system
after Intel Trace Collector/Analyzer is installed:
• Intel Trace Collector Users Guide — located on the HP XC system at:
<install-path-name>/ITC/doc/Intel_Trace_Collector_Users_Guide.pdf.
• Intel Trace Analyzer Users Guide — located on the HP XC system at:
<install-path-name>/ITA/doc/Intel_Trace_Analyzer_Users_Guide.pdf
8.1.1 Building a Program — Intel Trace Collector and HP-MPI
HP-MPI is MPICH compatible if you use the HP-MPI MPICH scripts which are located at: /opt/
hpmpi/bin. The HP-MPI MPICH scripts are:
• mpicc is replaced by mpicc.mpich
• mpif77 is replaced by mpif77.mpich
• mpirun is replaced by mpirun.mpich
In summary, mpixx becomes mpixx.mpich.
For further information, see the Intel Trace Collector Users Guide. This document is located on the
HP XC system at the following location:
<install-path-name>/ITC/doc/Intel_Trace_Collector_Users_Guide.pdf.
8.1 Using the Intel Trace Collector and Intel Trace Analyzer 75
- HP XC System Software 1
- XC User Guide 1
- Table of Contents 3
- 4 Table of Contents 4
- Table of Contents 5 5
- 6 Table of Contents 6
- Table of Contents 7 7
- List of Figures 8
- List of Tables 9
- List of Examples 10
- About This Document 11
- Related Information 13
- Linux Web Sites 15
- Manpages 16
- HP Encourages Your Comments 17
- 1.1 System Architecture 19
- 1.1.4 Node Specialization 20
- 1.1.5 Storage and I/O 21
- 1.1.6 File System 21
- File System Layout 22
- 1.3 User Environment 23
- 1.3.3 Commands 24
- 1.4.1 Parallel Applications 24
- 1.5 Run-Time Environment 25
- 1.5.5 HP-MPI 26
- 2 Using the System 29
- 2.2.1 Introduction 30
- 2.2.5 Launching Jobs 31
- 2.2.8 Resuming Suspended Jobs 31
- 32 Using the System 32
- 3.1 Overview of Modules 33
- 3.2 Supplied Modulefiles 34
- 3.6 Loading a Modulefile 36
- 3.7 Unloading a Modulefile 37
- 3.9 Modulefile Conflicts 37
- 3.10 Creating a Modulefile 38
- 4 Developing Applications 39
- 4.2 Compilers 40
- 4.4 Interrupting a Job 41
- 4.5 Setting Debugging Options 41
- 42 Developing Applications 42
- 4.7.1.1 Modulefiles 43
- 4.7.1.2 HP-MPI 43
- 4.7.1.3 OpenMP 43
- 4.7.1.4 Pthreads 43
- 4.7.1.5 Quadrics SHMEM 43
- 44 Developing Applications 44
- $ module load mpi 45
- 4.8 Developing Libraries 46
- 4.8 Developing Libraries 47 47
- 48 Developing Applications 48
- 5 Submitting Jobs 49
- 50 Submitting Jobs 50
- 5.3 Submitting a Parallel Job 51
- 52 Submitting Jobs 52
- 56 Submitting Jobs 56
- 58 Submitting Jobs 58
- 60 Submitting Jobs 60
- -R "type=SLINUX64" 61
- 6 Debugging Applications 63
- 6.2.1.1 SSH and TotalView 64
- 6.2.1.2 Setting Up TotalView 64
- 66 Debugging Applications 66
- 6.2.1.8 Exiting TotalView 67
- 7 Monitoring Node Activity 69
- 70 Monitoring Node Activity 70
- 72 Monitoring Node Activity 72
- 8 Tuning Applications 75
- 76 Tuning Applications 76
- 8.2.1 Installation Kit 77
- Running a Program 78
- 9 Using SLURM 81
- 9.3.1.1 The srun Roles 82
- 9.3.1.2 The srun Modes 82
- 9.7 Job Accounting 84
- 9.8 Fault Tolerance 84
- 9.9 Security 84
- 10 Using LSF 85
- $ squeue --jobs $SLURM_JOBID 86
- 10.4 Job Terminology 89
- 90 Using LSF 90
- 10.6 Submitting Jobs 91
- DescriptionExit Code 92
- Success0 92
- 92 Using LSF 92
- SLURM_JOBID=53 93
- SLURM_NPROCS=4 93
- $ sinfo -p lsf -lNe 96
- 96 Using LSF 96
- $ bjobs 24 98
- 98 Using LSF 98
- 102 Using LSF 102
- $ unset SLURM_JOBID 103
- $ unset SLURM_NPROCS 103
- $ srun --jobid=250 uptime 103
- 11 Advanced Topics 107
- 108 Advanced Topics 108
- 110 Advanced Topics 110
- 11.3.1 Example Procedure 1 111
- 11.3.2 Example Procedure 2 111
- 11.3.3 Example Procedure 3 112
- 11.5.1 Shared File View 113
- 11.5.2 Private File View 113
- % srun -A options 114
- % ./wrapper 114
- % bsub -I options... wrapper 114
- A Examples 115
- Submit the job: 116
- View the job: 116
- 118 Examples 118
- Exit from the shell: 119
- Show the environment: 119
- Display the script: 119
- Run the job: 120
- Show the job allocation: 120
- Show the SLURM job ID: 121
- Exit the pseudo-terminal: 121
- View the interactive jobs: 121
- View the finished jobs: 121
- View the node state: 122
- View the running job: 122
- View the finished job: 123
- Glossary 125
- 126 Glossary 126
- 128 Glossary 128
- 130 Glossary 130
- 132 Index 132
- 134 Index 134
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