QLogic OFED+ Host Software User Guide, Rev. B

More documents

Recommendations

Info

F–Troubleshooting OpenFabrics and InfiniPath Issues MPI Job Failures Due to Initialization Problems If one or more nodes do not have the interconnect in a usable state, messages similar to the following appear when the MPI program is started: userinit: userinit ioctl failed: Network is down [1]: device init failed userinit: userinit ioctl failed: Fatal Error in keypriv.c(520): device init failed These messages may indicate that a cable is not connected, the switch is down, SM is not running, or that a hardware error occurred. OpenFabrics and InfiniPath Issues The following sections cover issues related to OpenFabrics (including Subnet Managers) and InfiniPath. Stop Infinipath Services Before Stopping/Restarting InfiniPath The following Infinipath services must be stopped before stopping/starting/restarting InfiniPath: • <strong>QLogic</strong> Fabric Manager • OpenSM • <strong>QLogic</strong> MPI • VNIC • SRP Here is a sample command and the corresponding error messages: # /etc/init.d/openibd stop Unloading infiniband modules: sdp cm umad uverbs ipoib sa ipath mad coreFATAL:Module ib_umad is in use. Unloading infinipath modules FATAL: Module ib_qib is in use. [FAILED] F-6 D000046-005 B
F–Troubleshooting OpenFabrics and InfiniPath Issues Manual Shutdown or Restart May Hang if NFS in Use If you are using NFS over IPoIB and use the manual /etc/init.d/openibd stop (or restart) command, the shutdown process may silently hang on the fuser command contained within the script. This is because fuser cannot traverse down the tree from the mount point once the mount point has disappeared. To remedy this problem, the fuser process itself needs to be killed. Run the following command either as a root user or as the user who is running the fuser process: # kill -9 fuser The shutdown will continue. This problem is not seen if the system is rebooted or if the filesystem has already been unmounted before stopping infinipath. Load and Configure IPoIB Before Loading SDP SDP generates Connection Refused errors if it is loaded before IPoIB has been loaded and configured. To solve the problem, load and configure IPoIB first. Set $IBPATH for OpenFabrics Scripts The environment variable $IBPATH must be set to /usr/bin. If this has not been set, or if you have it set to a location other than the installed location, you may see error messages similar to the following when running some OpenFabrics scripts: /usr/bin/ibhosts: line 30: /usr/local/bin/ibnetdiscover: No such file or directory For the OpenFabrics commands supplied with this InfiniPath release, set the variable (if it has not been set already) to /usr/bin, as follows: $ export IBPATH=/usr/bin SDP Module Not Loading If the settings for debug level and the zero copy threshold from InfiniPath release 2.0 are present in the release 2.2 /etc/modprobe.conf file (RHEL) or /etc/modprobe.conf.local (SLES) file, the SDP module may not load: options ib_sdp sdp_debug_level=4 sdp_zcopy_thrsh_src_default=10000000 To solve the problem, remove this line. D000046-005 B F-7
Page 1 and 2:
QLogic OFED+ Host Software User Gui
Page 3 and 4:
Table of Contents 1 Introduction Ho
Page 5 and 6:
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Preface The QLogic OFED+ Host Softw
Page 17 and 18:
Preface Technical Support Technical
Page 19 and 20:
1 Introduction How this Guide is Or
Page 21 and 22:
1-Introduction Interoperability QLo
Page 23 and 24:
2 Step-by-Step Cluster Setup and MP
Page 25 and 26:
3 TrueScale Cluster Setup and Admin
Page 27 and 28:
3-TrueScale Cluster Setup and Admin
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
4 Running QLogic MPI on QLogic Adap
Page 65 and 66:
4-Running QLogic MPI on QLogic Adap
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
5 Using Other MPIs Introduction Thi
Page 93 and 94:
5-Using Other MPIs Open MPI Open MP
Page 95 and 96:
5-Using Other MPIs MVAPICH Further
Page 97 and 98:
5-Using Other MPIs Managing Open MP
Page 99 and 100:
5-Using Other MPIs Platform (Scali)
Page 101 and 102:
5-Using Other MPIs Intel MPI Intel
Page 103 and 104:
5-Using Other MPIs Intel MPI When u
Page 105 and 106:
5-Using Other MPIs Improving Perfor
Page 107 and 108:
6 Performance Scaled Messaging Intr
Page 109 and 110:
6-Performance Scaled Messaging Usin
Page 111 and 112:
7 Dispersive Routing Infiniband use
Page 113 and 114:
7-Dispersive Routing • Static_Des
Page 115 and 116:
8 gPXE gPXE Setup gPXE is an open s
Page 117 and 118:
8-gPXE Preparing the DHCP Server in
Page 119 and 120:
8-gPXE Netbooting Over InfiniBand P
Page 121 and 122:
8-gPXE Netbooting Over InfiniBand W
Page 123 and 124:
8-gPXE Netbooting Over InfiniBand #
Page 125 and 126:
8-gPXE Netbooting Over InfiniBand #
Page 127 and 128:
8-gPXE Netbooting Over InfiniBand T
Page 129 and 130:
8-gPXE HTTP Boot Setup 5. Create an
Page 131 and 132:
A mpirun Options Summary This secti
Page 133 and 134:
A-mpirun Options Summary Quiescence
Page 135 and 136:
A-mpirun Options Summary Tuning Opt
Page 137 and 138:
A-mpirun Options Summary Format Opt
Page 139 and 140:
B Benchmark Programs Several MPI pe
Page 141 and 142:
B-Benchmark Programs Benchmark 2: M
Page 143 and 144:
B-Benchmark Programs Benchmark 4: M
Page 145 and 146:
C VirtualNIC Interface Configuratio
Page 147 and 148: C-VirtualNIC Interface Configuratio
Page 161 and 162: D SRP Configuration SRP Configurati
Page 163 and 164: D-SRP Configuration QLogic SRP Conf
Page 185 and 186: D-SRP Configuration OFED SRP Config
Page 187 and 188: E Integration with a Batch Queuing
Page 189 and 190: E-Integration with a Batch Queuing
Page 191 and 192: E-Integration with a Batch Queuing
Page 193 and 194: F Troubleshooting This appendix des
Page 195 and 196: F-Troubleshooting Kernel and Initia
Page 197: F-Troubleshooting Kernel and Initia
Page 201 and 202: F-Troubleshooting Performance Issue
Page 203 and 204: F-Troubleshooting QLogic MPI Troubl
Page 225 and 226: G ULP Troubleshooting Troubleshooti
Page 227 and 228: G-ULP Troubleshooting Troubleshooti
Page 241 and 242: H Write Combining Introduction Writ
Page 243 and 244: H-Write Combining MTRR Mapping and
Page 245 and 246: I Useful Programs and Files The mos
Page 247 and 248: I-Useful Programs and Files Summary
Page 249 and 250:
I-Useful Programs and Files Summary
Page 251 and 252:
Page 253 and 254:
Page 255 and 256:
Page 257 and 258:
Page 259 and 260:
Page 261 and 262:
I-Useful Programs and Files Common
Page 263 and 264:
Page 265 and 266:
Page 267 and 268:
Page 269 and 270:
J Recommended Reading Reference mat
Page 272:
Corporate Headquarters QLogic Corpo
show all

QLogic OFED+ Host Software User Guide, Rev. B

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?