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The Zero-Force MPI Toolkit – Toward Tractable Toolkits for HPC

The Zero-Force MPI Toolkit – Toward Tractable Toolkits for HPC. Magdalena Slawinska Dawid Kurzyniec Jaroslaw Slawinski Vaidy Sunderam Emory University. The Zero-Force MPI Toolkit – Toward tractable toolkits for HPC. Goals New approach to resource sharing

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The Zero-Force MPI Toolkit – Toward Tractable Toolkits for HPC

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  1. The Zero-Force MPI Toolkit –Toward Tractable Toolkits for HPC Magdalena Slawinska Dawid Kurzyniec Jaroslaw Slawinski Vaidy Sunderam Emory University

  2. The Zero-Force MPI Toolkit –Toward tractable toolkits for HPC Goals • New approach to resource sharing • Aggregation and virtualization resourcesat the client side • Automating tasks • MPI environment configuration • Uploading and compiling computational applications • Staging input data / result collection

  3. Client side Local FS Provider side The Zero-Force MPI Toolkit –Toward tractable toolkits for HPC Architecture • Client side: Interactive console • Unified and coherent interface • Resource virtualization • Mediators – “service-drivers” • Provider side: Access daemons • E.g., sshd, ftpd • Prototype implementation • FT-MPI • Java • JSch (SSH2 implementation)

  4. The Zero-Force MPI Toolkit –Toward tractable toolkits for HPC ZF-MPI console Add computational resource to DVM • Upload FT-MPI • Install • Decompress sources • Launch FT-MPI daemons DVM assembly Synchronize data, source files across DVM nodes Data sync Compile and build Invoke standard shell commands Application launch Run MPI programs

  5. The Zero-Force MPI Toolkit –Toward tractable toolkits for HPC Set ZF-MPI VM: login user “joe” on hosts and install FT-MPI Set FT-MPI Name Service on host “compute” Create FT-MPI VM with all hosts Copy NPBsource code to all hosts in ZF-MPI VM Change directory in ZF-MPI VM Build NPB on ZF-MPI VM Move executables to properFT-MPI VM directory Execute FT-MPI application (BT benchmark) Get result from log file StopFT-MPI VM zf-mpi> add ft_mpi joe@{lab6a,lab6b,lab6c,lab6d,compute} zf-mpi> ft_mpi setNS compute zf-mpi> ft_mpi add lab6a,lab6b,lab6c,lab6d,compute zf-mpi> sync ~/NPB3.2.1/NPB3.2-MPI ~/zf-mpi/ zf-mpi> cd ~/zf-mpi/NPB3.2-MPI zf-mpi> make bt NPROCS=4 CLASS=B zf-mpi> mv bin/bt.B.4 $HARNESS_BIN_DIR/$HARNESS_ARCH/ zf-mpi> ft_mpi ftmpirun compute -np 4 -o bt.B.4 > log zf-mpi> cat log | grep "Time in seconds" zf-mpi> ft_mpi console haltall

  6. The Zero-Force MPI Toolkit –Toward tractable toolkits for HPC Experimental evaluation • NAS Parallel Benchmarks 3.2 for MPI • Linux/i86 • Pentium 4 (2.4-2.8 GHz), 1 GB RAM • Linux Mandriva 2006 (kernel 2.6.12-12) • Solaris (non-GNU-based UNIX) • Sun Blade 2500, UltraSPARC-III, 1280 MHz • 1 MB cache memory per processor, 2 GB RAM • Connected directly to 100 Mbit HP network switches • SunOS 5.10 • Homogeneous cluster: class A, up to 16 processes • Heterogeneous cluster: class B, 8, 9 processes

  7. BT FT LU IS MG The Zero-Force MPI Toolkit –Toward tractable toolkits for HPC

  8. SP EP CG Class B The Zero-Force MPI Toolkit –Toward tractable toolkits for HPC

  9. Local FS The Zero-Force MPI Toolkit –Toward tractable toolkits for HPC Summary ZF-MPI • Implements the new resource sharing model • Demonstrates feasibility of the run-not-install approach • Significantly reduces efforts such as deployment and execution • Does not affect performance of MPI applications

  10. Contacts • Magdalena Slawinska • Emory University • magg@mathcs.emory.edu • Jaroslaw Slawinski • Emory University • jaross@mathcs.emory.edu • Vaidy Sunderam • Emory University • vss@mathcs.emory.edu 10 Slawinska_ZF- MPI_SC07

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