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Noté. / 5. Basé sur avis des utilisateurs
6 – MPI Sample Applications
OSU Latency
6-2 D000006-000 Rev A
Q
For all but the mandel and tachyon demos, when MPI applications are run with the
scripts provided, the results of the run will be logged to a file in
/opt/iba/src/mpi_apps/logs. The file name will include the date and time
of the run for uniqueness.
6.1
OSU Latency
This is a simple benchmark of end-to-end latency for various MPI message sizes.
The values reported are one-direction latency.
A script is provided to run this application that will execute an assortment of sizes:
1. cd /opt/iba/src/mpi_apps
2. ./run_lat
This will run assorted latencies from 0 to 256 bytes. To run a different set of message
sizes an optional argument specifying the maximum message size can be provided.
This benchmark will only use the first two nodes listed in mpi_hosts.
During this benchmark the /opt/iba/src/mpi_apps/mpi.param.pallas
config file is used.
6.2
OSU Latency2
This is a simple performance test of end-to-end latency for various MPI message
sizes. The values reported are one-direction latency.
A script is provided to run this application, which will execute an assortment of sizes:
1. cd /opt/iba/src/mpi_apps
2. ./run_lat2
This will run assorted latencies from 0-to-4Megabytes.
This benchmark will only use the first two nodes listed in mpi_hosts.
During this benchmark the /opt/iba/src/mpi_apps/mpi.param.pallas
config file is used.
6.3
OSU Bandwidth
This is a simple benchmark of maximum unidirectional bandwidth.
A script is provided to run this application which will execute an assortment of sizes:
1. cd /opt/iba/src/mpi_apps
2. ./run_bw
- Fast Fabric 1
- Users Guide 1
- Fast Fabric Users Guide 2
- Page ii D000006-000 Rev. A 2
- D000006-000 Rev. A Page iii 3
- Section 1 Introduction 5
- Section 3 Getting Started 5
- Page vi D000006-000 Rev. A 6
- D000006-000 Rev. A Page vii 7
- Page viii D000006-000 Rev. A 8
- Introduction 9
- Technical Support 10
- Availability 10
- Contact Information 10
- Fast Fabric Overview 11
- Fast Fabric Architecture 12
- How Fast Fabric Works 13
- 2 – Fast Fabric Overview 14
- 2-4 D000006-000 Rev A 14
- Getting Started 15
- Set Up the Fabric 16
- Using Fast Fabric 18
- 3 – Getting Started 20
- 3-6 D000006-000 Rev A 20
- 3-8 D000006-000 Rev A 22
- Chassis1 22
- Chassis2 22
- 3-12 D000006-000 Rev A 26
- [/etc/sysconfig/iba/ibnodes]: 26
- 3-14 D000006-000 Rev A 28
- D000006-000 Rev A 3-15 29
- D000006-000 Rev A 3-17 31
- Running HPL 34
- Upgrading IB software 35
- D000006-000 Rev A 3-23 37
- 3-24 D000006-000 Rev A 38
- Fast Fabric TUI Menu 39
- Host Setup via Fast Fabric 41
- Verify RSH/RCP Configured 42
- Setup Password-less SSH/SCP 43
- Copy /etc/hosts to all hosts 43
- Show uname -a for all hosts 43
- Configure IPoIB IP Address 44
- Reboot Hosts 44
- Refresh SSH Known Hosts 44
- Rebuild MPI Library and Tools 44
- Run a command on all hosts 45
- Copy a file to all hosts 45
- View ibtest result files 45
- Host Admin via Fast Fabric 46
- Summary of Fabric Components 47
- Show Status of Host IB Ports 47
- Verify Hosts see each other 47
- Verify Hosts ping via IPoIB 47
- Check MPI Performance 48
- Update Chassis Firmware 50
- Reboot Chassis 51
- Run a command on all chassis 51
- View ibtest results files 51
- Update Switch Firmware 52
- Reboot Switch 53
- 4 – Fast Fabric TUI Menu 54
- 4-16 D000006-000 Rev A 54
- Common Tool Options 55
- -n or -I 56
- Selection of Hosts 57
- Host List File Format 58
- Explicit host names 58
- Selection of Chassis 58
- Chassis List File Format 60
- Explicit Chassis names 60
- Selection of Switches 61
- Switch List File Format 62
- Explicit Switch names 63
- Port List File Format 64
- Explicit ports 65
- 5-14 D000006-000 Rev A 68
- D000006-000 Rev A 5-15 69
- D000006-000 Rev A 5-17 71
- 5-18 D000006-000 Rev A 72
- File Management Tools 73
- D000006-000 Rev A 5-21 75
- Fabric_info 79
- 5-28 D000006-000 Rev A 82
- D000006-000 Rev A 5-29 83
- 5-30 D000006-000 Rev A 84
- D000006-000 Rev A 5-31 85
- Basics of Using iba_report 87
- D000006-000 Rev A 5-39 93
- Topology Verification 94
- Focused Reports 94
- Advanced Focus 95
- Focus Examples: 96
- Scriptable output 96
- 5.4.3.4.1 97
- Sample Output 98
- 5.4.3.5.2 100
- D000006-000 Rev A 5-47 101
- Fabric Analysis Tools 102
- 5-48 D000006-000 Rev A 102
- D000006-000 Rev A 5-49 103
- 5-50 D000006-000 Rev A 104
- D000006-000 Rev A 5-51 105
- 5-52 D000006-000 Rev A 106
- D000006-000 Rev A 5-53 107
- 5-54 D000006-000 Rev A 108
- D000006-000 Rev A 5-55 109
- D000006-000 Rev A 5-57 111
- (-o) are permitted: 112
- Table 5-1. Input Combinations 112
- 5-62 D000006-000 Rev A 116
- D000006-000 Rev A 5-63 117
- 5-64 D000006-000 Rev A 118
- D000006-000 Rev A 5-65 119
- 5-66 D000006-000 Rev A 120
- D000006-000 Rev A 5-67 121
- Usage Model 123
- Common Operations and Options 124
- D000006-000 Rev A 5-71 125
- D000006-000 Rev A 5-73 127
- 5-74 D000006-000 Rev A 128
- D000006-000 Rev A 5-75 129
- D000006-000 Rev A 5-77 131
- 5-78 D000006-000 Rev A 132
- D000006-000 Rev A 5-79 133
- 5-80 D000006-000 Rev A 134
- D000006-000 Rev A 5-81 135
- hostsm_analysis 135
- 5-82 D000006-000 Rev A 136
- D000006-000 Rev A 5-83 137
- 'esmchassis'] 137
- 5-84 D000006-000 Rev A 138
- D000006-000 Rev A 5-85 139
- Manual and Automated Usage 141
- 5-88 D000006-000 Rev A 142
- MPI Sample Applications 143
- OSU Latency 144
- OSU Latency2 144
- OSU Bandwidth 144
- OSU Bandwidth2 145
- OSU Bidirectional Bandwidth 145
- 6 – MPI Sample Applications 146
- 6-4 D000006-000 Rev A 146
- ./config_hpl 146
- ./run_hpl 16 146
- D000006-000 Rev A 6-5 147
- ./run_pmb 4 147
- 6-6 D000006-000 Rev A 148
- Setup The Fabric 149
- A-2 D000006-000 Rev A 150
- D000006-000 Rev A A-3 151
- A-4 D000006-000 Rev A 152
- Appendix B 153
- D000006-000 Rev A B-7 159
- Host List Files 161
- Chassis List Files 161
- Switch List Files 163
- Port List Files 164
- D000006-000 Rev A B-13 165
- B-14 D000006-000 Rev A 166
- Appendix C 167
- C-2 D000006-000 Rev A 168
- Multi-Subnet Fabrics 169
- D – Multi-Subnet Fabrics 170
- Primarily Independent Subnets 170
- D-2 D000006-000 Rev A 170
- Overlapping Subnets 171
- D-4 D000006-000 Rev A 172
- D000006-000 Rev A D-5 173
- D-6 D000006-000 Rev A 174
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