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C programming language MPI numerical integration program timing code segments gettimeofday function MPI, manual timing [See MPI, code timing with] time system call C shell, time command C++ programming language MPI numerical integration problem C3 (Cluster Command and Control) 2nd commands cexec cget ckill clist cname cnum cpush cpushimage crm cshutdown options installing ckillnode script configuration file, creating dependencies pushimage command OSCAR and Python and Rocks and cable management cache consistency catchpoints CD-ROM based clusters centralized multiprocessors ch_nt MPICH ch_p4 MPICH ch_p4mpd MPICH ch_shmem MPICH checkergcc cLAN clients automating setup [See cloning] clog CLOG log file format clog2slog utility cloning automating installations documenting g4u 2nd Kickstart 2nd SystemImager 2nd definition files, distribution and synchronization rsync Clumon Cluster Command and Control software package [See C3] cluster hardware [See hardware] cluster head cluster kits 2nd distributions OSCAR [See OSCAR] Rocks [See Rocks] cluster nodes, cloning [See cloning] cluster of workstations (COW) cluster planning access control architecture CD-ROM based clusters cluster kits [See cluster kits] clusters versus grids control design steps mission determining scheduling security shared versus dedicated clusters software control and management software programming software system software user base cluster-fork command ClusterKnoppix ClusterNFS clusters 2nd 3rd benchmarking Beowulf clusters 2nd ÒBig MacÓ cluster clients, automating setup [See cloning] commodity clusters distributed computing and filesystems, selecting [See parallel filesystems] limitations management software [See management software] multicomputers network design and NOW cluster planning [See cluster planning] POP programming software [See programming software] proprietary clusters scheduling software [See scheduling software] single system image clustering software structure types Coda
code optimization
gcc and -O compiler flag profiling and color commodity clusters commodity, off-the-shelf (COTS) computers communication versus concurrency communicators (MPI) 2nd compilers debugging and computational grid computers 2nd [See also clusters] centralized multiprocessors COTS computers improving performance memory bandwidth multicomputer architecture multiple processors pipelining processor array architecture RISC architecture superscalar architecture von Neumann bottleneck von Neumann computer Condor roll (Rocks) 2nd constellations control and management software control decomposition COTS (commodit, off-the-shelf) computers COW (cluster of workstations) cpi.c program example cpilog.c program example
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