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Synergy Architecture and Daemon Management in Distributed and Parallel Processing

This lecture focuses on the Synergy architecture for distributed and parallel processing, detailing static and dynamic daemons such as pmd, cid, tsh, and fah. Learn about the Language Injection Library (libsng.a), runtime components like prun, and the Configuration Specification Language (CSL) and Distributed Application Controller (DAC). The session covers failure detection, application creation steps, debugging techniques, and tools for managing host systems in a clustered environment. Explore future research directions in stateless processing and fault-tolerant clusters.

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Synergy Architecture and Daemon Management in Distributed and Parallel Processing

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  1. CIS669 Distributed and Parallel Processing Spring 2002 Dr. Yuan Shi Lecture 4

  2. Synergy Architecture • Static Daemons: pmd + cid • Dynamic daemons: tsh + fah • Language Injection Library: libsng.a • Runtime components: prun + prun x -debug + pcheck • CSL compiler (Configuration Spec. Lang.) • DAC(Distributed Application Controller) • Cds –f (check daemons) • Other Tools • Host management: shosts, chosts, addhost, delhost, dhosts • Failure detection: fdd • Daemon check: cds

  3. Parallel Processing Environment • Cluster(s) of networked computers • ~/.sng_hosts holds all known and/or useable machines. • SNG_PATH points to synergy root on the compiling host. • /synergy/bin in local command search path. • A real ~/bin directory on each host. • Pmd/cid started on each host.

  4. Application Creation Process Step 1 Step 2 Step 3 ap1.c apps.csl %prun/pcheck ap2.c tsh conf cc/gcc cid cid cid fah cid dac libsng.a ~/bin/ap1…

  5. Debugging %prun matrix -debug == Checking Processor Pool: ++ Benchmark (218) ++ (ackbar.yoda.temple.edu) ready. ++ Benchmark (218) ++ (tauntaun.yoda.temple.edu) ready. == Done. Conf Default node (rancor-hps.tc.cornell.edu) == CONFiguring: (matrix.csl) ++ Application Console: (rancor.yoda.temple.edu) ++ Default directory (/usr/users/shi/synergy/apps/ssc/matrix) ++ Debugging mode ON. ++ Automatic program assignment: (worker)->(ackbar.yoda.temple.edu) ++ Automatic slave generation: (worker1)->(tauntaun.yoda.temple.edu) ++ Automatic program assignment: (master)->(ackbar.yoda.temple.edu) ++ Automatic object assignment: (problem)->(ackbar.yoda.temple.edu) pred(1) succ(6) ++ Automatic object assignment: (result)->(ackbar.yoda.temple.edu) pred(6) succ(1) == Done. == Staring distributed objects. sng_prun. file_name(matrix.objs.prcd) ConnectCid: cid_host(246544283) port(26012) ConnectCid: cid_host(246544283) port(26012) ****** (matrix.objs.prcd) verified, all components executable. ConnectCid: cid_host(246544283) port(26012) ****** (matrix.objs.prcd) started. Fault Tolerance activated ::: ret(0) FDD failed to start. == Done. ++ Entering Synergy Debugging Session ... Use .dbx to start debugging each program. Please keep .ini file along with each program. ++ Type matrix.end to terminate the debugging session.

  6. Applications • Computing intense applications • IO intense applications

  7. Future Research • Stateless processing • Distributed stateless processing (transaction) • Fault tolerant cluster research

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