IBM pSeries manual Mpprintenv Mpstatistics

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5.10 MP_PRINTENV

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5.11 MP_STATISTICS

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5.12 Dropped switch packets

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5.12.1 Packets dropped because of a software problem on an endpoint ....

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5.12.2 Packets dropped in the ML0 interface

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5.12.3 Packets dropped because of a hardware problem on an endpoint...

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5.12.4 Packets dropped in the switch hardware

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5.13 MP_INFOLEVEL

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5.14 LAPI_DEBUG_COMM_TIMEOUT

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5.15 LAPI_DEBUG_PERF

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5.16 AIX 5L trace for daemon activity

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6.0 Conclusions and summary

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7.0 Additional reading

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7.1

HPS documentation

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7.2

MPI documentation

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7.3

AIX 5L performance guides

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7.4

IBM Redbooks

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7.5 POWER4

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pshpstuningguidewp040105.doc

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Contents IBM ~pSeries High Performance Switch Contents Mpprintenv Mpstatistics Introduction Mppollinginterval Tunables and settings for switch softwareMPI tunables for Parallel Environment MpeagerlimitMemoryaffinity Mprexmitbufsize and MprexmitbufcntMptaskaffinity MpcssinterruptMPI-IO Chgsni command Tunables and settings for AIX 5L IP tunablesFile cache Svmon and vmstat commands Vsid Esid Type Description LPage Inuse Pin Pgsp Virtual SvmonPin Pgsp Virtual VmstatLarge page sizing Pshpstuningguidewp040105.doc Large pages and IP support Memory affinity for a single LparAmount of memory available Debug settings in the AIX 5L kernel Daemon configurationRsct daemons LoadLeveler daemons Reducing the number of daemons runningReducing logging Settings for AIX 5L threads Placement of POE managers and LoadLeveler schedulerAIX 5L mail, spool, and sync daemons Iptrclvl setting Debug settings and data collection toolsLsattr tuning Driverdebug settingAffinity LPARs Small Real Mode Address Region on HMC GUIDeconfigured L3 cache Service focal pointErrpt command HMC error loggingMultiple versions of MPI libraries Mpprintenv Memoryaffinity MpstatisticsDropped switch packets Nddipacketsmsw 0x00000000 Nddipacketslsw Packets dropped in the ML0 interface Packets dropped because of a hardware problem on an endpoint Mpinfolevel Packets dropped in the switch hardwareLapidebugperf LapidebugcommtimeoutHPS documentation AIX 5L trace for daemon activityConclusions and summary Additional readingIBM Redbooks POWER4MPI documentation AIX 5L performance guidesPshpstuningguidewp040105.doc