remote visualization - twin cities - university of minnesota

© 2011 Regents of the University of Minnesota. All rights reserved.

Remote Visualization

Ravi Chityala Mike Knox

Nancy Rowe

© 2011 Regents of the University of Minnesota. All rights reserved.

Remote visualization •  Motivation: Large data

–  Limited local storage –  Lengthy data transfer time –  Slow local graphics system

•  Data rendered where calculated •  Challenges:Bandwidth

–  1280 x 1024 pixels of 24 bits at 30 frames a second = 118 MBps

•  Latency of network and GPU

© 2011 Regents of the University of Minnesota. All rights reserved.

What is remote visualization at MSI?

•  Available on Jay and Koronis •  Several ways to access •  Experimental

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Systems Jay •  Nvidia Quadro FX5800 •  64G memory Koronis (SGI Altix UV Constellation); NIH

graphics[2-4] •  Nvidia Quadro FX5800 •  48G memory

graphics1 •  Nvidia Quadro FX1800 •  256G memory

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Access to Systems Jay •  Reservation •  qsub -I -q jay •  www.msi.umn.edu/hardware/itasca/jay.html

Koronis   NIH   www.msi.umn.edu/hardware/koronis

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Systems System Location of

temporary storage

Single Read/Write speed

Aggregate Read/Write speed

Jay /lustre ~400MB/s ~400MB/s

~10GB/s ~13.5GB/s

Koronis /scratch ~1.5GB/s ~1.5GB/s

~4 - 14GB/s ~7- 16GB/s (highly variable)

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Ways to access •  KVM •  Teradici •  VirtualGL •  Client/Server

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KVM •  Keyboard, Video and Mouse •  Directly runs software •  Installed in SDVL 575

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Teradici card •  PCoIP •  Host rendering •  Just sends pixels •  Installed in SDVL 575

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VirtualGL (VGL) •  Open source •  OpenGL •  Linux server •  Requires local client – Linux, Windows, Mac

•  Images rendered on remote computer •  2D graphics done locally •  Applications not vendor supported

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Software •  Avizo •  Ensight •  Custom software

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Avizo •  General purpose visualizer •  VGL •  Scripting

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Ensight •  Engineering data •  VGL •  Client/Server

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VirtualGL Installation •  Browse to the download page:

–  http://www.virtualgl.org/Downloads/VirtualGL

•  Pick an appropriate installation package –  Architecture: i386 / amd64 –  OS: .exe / .rpm / .deb / .dmg

•  Follow the OS specific installation instructions: –  http://virtualgl.svn.sourceforge.net/viewvc/virtualgl/vgl/trunk/doc/index.html#hd004

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Jay

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Login to Jay

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Copy files from project space to Lustre

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Starting Avizo

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Avizo

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File open

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File Open

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Data read mode

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Data read complete

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Ortho-slice

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Iso-surface

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Starting Ensight

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Ensight

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Koronis and Graphics[1-4]

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Login to Koronis

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Login to Graphics1

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Copy file from project space to scratch

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Starting Avizo

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Starting Ensight

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•  Ravi Chityala chityala@msi.umn.edu •  Mike Knox mikeknox@lcse.umn.edu •  Nancy Rowe rowe@msi.umn.edu

•  MSI Help help@msi.umn.edu

Contact Information

The University of Minnesota is an equal opportunity educator and employer. This PowerPoint is available in alternative formats upon request. Direct requests to Minnesota Supercomputing Institute, 599 Walter library, 117 Pleasant St. SE,

Minneapolis, Minnesota, 55455, 612-624-0528.