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Mellanox OFED Stack for Linux User’s Manual 5 8.7 8.8 8.9 Chapter 9 75 76 76 OpenSM – Subnet Manager 77 9.1 9.2 77 77 77 81 82 82 82 82 82 85 85 85 87 88 88 89 89 90 91 92 92 92 93 93 94 95 95 95 98 99 99 100 100 100 100 100 102 102 102 103 104 9.3 9.4 9.5 9.6 9.7 Chapter 10 RDS SRP OpenSM Features Overview opensm Description 9.2.1 Syntax 9.2.2 Environment Variables 9.2.3 Signaling 9.2.4 Running opensm 9.2.4.1 Running OpenSM As Daemon osmtest Description 9.3.1 Syntax 9.3.2 Running osmtest Partitions 9.4.1 File Format Routing Algorithms 9.5.1 Effect of Topology Changes 9.5.2 Min Hop Algorithm 9.5.3 Purpose of UPDN Algorithm 9.5.3.1 UPDN Algorithm Usage 9.5.4 Fat-tree Routing Algorithm 9.5.5 LASH Routing Algorithm 9.5.6 DOR Routing Algorithm 9.5.7 Routing References 9.5.8 Modular Routine Engine Quality of Service Management in OpenSM 9.6.1 Overview 9.6.2 Advanced QoS Policy File 9.6.3 Simple QoS Policy Definition 9.6.4 Policy File Syntax Guidelines 9.6.5 Examples of Advanced Policy File 9.6.6 Simple QoS Policy - Details and Examples 9.6.6.1 IPoIB 9.6.6.2 SDP 9.6.6.3 RDS 9.6.6.4 iSER 9.6.6.5 SRP 9.6.6.6 MPI 9.6.7 SL2VL Mapping and VL Arbitration 9.6.8 Deployment Example QoS Configuration Examples 9.7.1 Typical HPC Example: MPI and Lustre 9.7.2 EDC SOA (2-tier): IPoIB and SRP 9.7.3 EDC (3-tier): IPoIB, RDS, SRP Diagnostic Utilities 107 10.1 Overview 10.2 Utilities Usage 10.2.1 Common Configuration, Interface and Addressing 10.2.2 IB Interface Definition 10.2.3 Addressing 10.3 ibdiagnet - IB Net Diagnostic 10.3.1 SYNOPSYS 10.3.2 Output Files 10.3.3 ERROR CODES 10.4 ibdiagpath - IB diagnostic path 10.4.1 SYNOPSYS Mellanox Technologies 107 107 107 107 108 108 108 110 110 111 111 Rev 1.20