RZG Visualisation Infrastructure
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1 Visualisation of Large Data Sets on Supercomputers RZG Visualisation Infrastructure Markus Rampp Computing Centre (RZG) of the Max-Planck-Society and IPP LRZ/RZG Course on Visualisation of Large Data Sets on Supercomputers LRZ Garching, Feb 23, 2011 LRZ/RZG Visualisation Course, Feb 23, 2011: RZG Visualisation Infrastructure (slide 1)
2 Overview The team Klaus Reuter: Visualisation Elena Erastova: HiWi student for visualisation support Markus Rampp: Coordination of HPC & visualisation application support Topics introduction hardware: the new remote visualisation cluster at RZG software: overview of supported applications training & application support LRZ/RZG Visualisation Course, Feb 23, 2011: RZG Visualisation Infrastructure (slide 2)
3 Visualisation support for the Max-Planck-Society Mission of RZG: main targets: interactive, remote data exploration & analysis, presentation,... support for adaptation and instrumentation of simulation codes guidance for selection, adoption and usage of analysis & visualisation software central software and hardware infrastructure for remote visualisation dedicated support for individual (particularly demanding) visualisation projects Main conceptual challenges: broad range of disciplines in MPG: Plasmaphysics, Astrophysics,..., comp. Biology many different scientific contexts variety of simulation codes: home-grown, commercial, open-source, third-party,... non-standardized, heterogeneous data structures and formats legacy analysis pipelines,... massive datasets from HPC simulations: (massive: amount of raw data, memory requirements, complexity) multidimensional (3D + time), multi-variate data unusual grids: meshless data, special curvilinear coordinates,... LRZ/RZG Visualisation Course, Feb 23, 2011: RZG Visualisation Infrastructure (slide 3)
4 Visualisation hardware Focus of procurement (installation Sep 2010): enable our (geographically dispersed) scientific users to perform complex visualisation tasks without special technical prerequisites (software, hardware) remote visualisation via WAN, LAN (no VR, AR,... LRZ) Hardware overview (Hewlett Packard) 5 standard visualisation nodes each equipped with: 2 Intel quadcore CPUs: 8 cores, 144 GB RAM 2 NVidia FX 5800 graphics cards 1 high-end visualisation node: 4 Intel hexacore CPUs, 24 cores, 256 GB RAM 2 NVidia FX 5800 graphics cards 1 login node: viz00.rzg.mpg.de dedicated disk system (GPFS, 30 TB) GPFS filesystem /ptmp of HPC systems mounted 2 graphics workplaces (active stereo) in RZG offices Software stack (HP, open source) SLES 11 (RZG standard cluster setup) VizStack middleware (GPUs, X-servers,... ) Web-based reservation system (HP) LRZ/RZG Visualisation Course, Feb 23, 2011: RZG Visualisation Infrastructure (slide 4)
5 Hardware LRZ/RZG Visualisation Course, Feb 23, 2011: RZG Visualisation Infrastructure (slide 5)
6 Hardware Graphics workplace (with active stereo) remote stereo rendering (not a graphics workstation!) 120 Hz display (rhs.) with shutter glasses + control monitor (lhs.) LRZ/RZG Visualisation Course, Feb 23, 2011: RZG Visualisation Infrastructure (slide 6)
7 User interface VizStack Reservation System (VSRT) authentication with RZG Kerberos main menu for starting visualisation sessions reservation management calendar VNC passwords client software documentation LRZ/RZG Visualisation Course, Feb 23, 2011: RZG Visualisation Infrastructure (slide 7)
8 User interface VizStack Reservation System (VSRT) reservation calendar: green: my reservations red: other users LRZ/RZG Visualisation Course, Feb 23, 2011: RZG Visualisation Infrastructure (slide 8)
9 User interface VizStack Reservation System (VSRT) start session immediately (provided resources are available) or based on an existing reservation start remote visualisation application with a few clicks each session is mapped to (at least) 1 GPU additional nodes (+GPUs) can be added/reserved note: sessions cannot be extended beyond selected expiration date (work in progress) LRZ/RZG Visualisation Course, Feb 23, 2011: RZG Visualisation Infrastructure (slide 9)
10 User interface VizStack Reservation System (VSRT) start task, e.g.: vncviewer -via gate.rzg.mpg.de viz04:1 LRZ/RZG Visualisation Course, Feb 23, 2011: RZG Visualisation Infrastructure (slide 10)
11 User interface Remote desktop (via TurboVNC) a standard Gnome desktop in a separate window desktop icons for main applications preconfigured according to session properties (number of GPUs, CPUs) LRZ/RZG Visualisation Course, Feb 23, 2011: RZG Visualisation Infrastructure (slide 11)
12 Visualisation software Software for interactive data visualisation and analysis VisIt Paraview VAPOR Voreen IDL Avizo (formerly Amira) Libraries and Tools SILO: a library for reading and writing a wide variety of scientific data to binary files (cf. VisIt). VTK NCAR Graphics Grace (Xmgrace) gnuplot GNU R Special-purpose Software Splotch: a (non-interactive), shared-memory-parallel ray tracer for SPH data. Blender: an open source, cross platform suite of tools for 3D creation. POV-Ray: a freeware multi-platform ray-tracing package. VMD (Visual Molecular Dynamics): a molecular graphics software. LRZ/RZG Visualisation Course, Feb 23, 2011: RZG Visualisation Infrastructure (slide 12)
13 Application support Documentation Training courses ( K. Reuter: Scientific Visualisation Services at RZG, Seventh GOTiT High Level Course, Garching, Oct 19, 2010 M. Rampp: Introduction to VisIt, LRZ course on Visualisation of Large Data Sets on Supercomputers, Jun 29, 2010 M. Rampp: Visualisation Support at RZG, MPA Garching, Jan 14, 2009 Project support dedicated support for visualisation projects at different levels: from basic first level support to comprehensive visualisation and analysis tasks requires (considerable) scientific insight several completed and ongoing projects, in close collab. with the users/scientists: ntificdata/projects contact: LRZ/RZG Visualisation Course, Feb 23, 2011: RZG Visualisation Infrastructure (slide 13)
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