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CAD and Visualization Laboratory

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The '''CAD and Visualization Laboratory''' or '''CVL''' is a computer lab running mainly [[w:CentOS|CentOS]] machines maintained by the [[Bradley Department of Electrical and Computer Engineering]]. It is located in 432 [[Whittemore Hall]]. Access is through a keypad, the number to which can be obtained through official channels from ECE systems administrator [http://search.vt.edu/search/person.html?person=1181337 Branden McKagen]. Disk quotas are enforced when home folders become unreasonably large, unless you have a good reason to need the space. The lab contains nine workstations (most with CentOS, a Core 2 Duo, 4 GB of memory, and dual monitors), a printer, and a microscope. The CVL cluster is available via ssh to account holders on <code>cvl.ece.vt.edu</code> and has MPI, MATLAB, Cadence, and [https://computing.ece.vt.edu/wiki/Software_Packages_and_Programs other software ] installed.
Printer: <code>socketVirginia Tech users with a PID can obtain a central authentication account for all CVL machines using the [https://172computing.16ece.12vt.1<edu/code> (only accessible from machines behind the CVL router)accounts/ automated account creation tool].
Driver== Physical Resources in the CVL ==The lab in 432 Whittemore Hall contains: * <strike>9 workstations (formerly <code>cvlwsXX.ece.vt.edu</code>), most of which have CentOS, Core 2 Duo, 4 GB memory, and dual monitors</strike>* 8 new workstations (cvlwsXX), with CentOS 6, dual quad-core Xeons, 16 GB memory, dual monitors, and dual NVIDIA graphics cards* A printer available at <code>socket://172.16.12.1</code> (only accessible from machines behind the CVL router). This uses the Dell M5210 Foomatic/Postscriptdriver, which is available in <code>/software/Dell_5210n.ppd</code> on CVL machines. It's currently broken.* A microscope* A large-format Epson 9800 printer for research groups to print posters and CAD drawings (located offsite, follow [https://computing.ece.vt.edu/wiki/Document_Printing_(Posters,_CAD_drawings,_photographs) the posted instructions] for usage).
== Compute Clusters ==
* <strike>15</strike> 14-node old cluster (also known as "the CVL cluster" or "ghetto-cluster")
** Each has Intel(R) Pentium(R) D CPU 3.00GHz CPUs, 8 GBytes RAM, 1 Gbit/sec ethernet
** Remote access available through ssh to <code>cvl.ece.vt.edu</code>. Individual nodes are <code>cvlXX.ece.vt.edu</code>
** MPI is installed, qsub can be used to parallelize things
** X11 is also installed, so <code>ssh -X cvl.ece.vt.edu</code> can be used to remotely run GUI applications.
* <strike>32</strike> 31-node blade cluster (the new cluster, or the Beast cluster)
** 16 nodes with 2x Quad-Core AMD Opteron(tm) Processor 2350 2GHz, 20 GBytes RAM, 1 Gbit/sec ethernet (<code>cluster[01-16]</code>)
** 16 nodes with 2x Quad-Core (8 threads) Intel(R) Xeon Processor E5620 2.40 GHz, 24 GBytes RAM, 1Gbit/sec ethernet (<code>cluster[17-32]</code>)
** This cluster does not have global IPv4 addresses, so you must ssh into other machines first to access this.
* Both clusters use a shared file storage system and central authentication, so home directories will persist between nodes.
* [https://computing.ece.vt.edu/wiki/Software_Packages_and_Programs Lots of software] is installed on the CVL machines.
 
For larger jobs, the [http://www.arc.vt.edu Advanced Research Computing] machines may be more appropriate.
 
== Colocated Servers ==
The CVL is also home to the following:
* <code>prometheus.ece.vt.edu</code>, an off-the-shelf parallel computing cluster
* VTLUUG servers, including <code>wood</code> (a VM host) and <code>sunway</code> (a 19-node Pentium 4 cluster)
* <code>godel</code>, a research machine with a massive amount of cores
* A LAMP server
 
== CVL Power ==
The CVL currently has 15 20A circuits and can provide a total of 100A triple-phase 220V power fed from panel LV4G (the transformer is rated for less than that though).
* Near-side wall (with window into hallway)
** Circuit 8: Used for workstations
** Circuit 10: Used for workstations and the CVL printer
** Circuit 12: Used for workstations
* Left-side wall (with non-functional door into hallway)
** Circuit 1: Unused
** Circuit 3: Used for Poweredge 2900s (bottom PSU) and workstations
** Circuit 5: Used for workstations
* Far-side wall (has window into power lab)
** Circuit 7
*** CVL powerstrip #6 - CVL nodes <strike>5,</strike> 6, 7, 8
*** VTLUUG powerstrip S1 - <code>wood</code>, <code>mirror</code>, <code>mirror2</code>, <code>temp88191</code>
** Circuit 9
*** Prometheus PDU
**** Prometheus nodes 3-4
**** VTLUUG powerstrip C2 - Sunway nodes 1-4
*** VTLUUG powerstrip C1 - Sunway nodes 12-17, 48-port switch
*** CVL powerstrip #8 - CVL 9, 10, 11, 12
** Circuit 11:
*** Prometheus head-node powerstrip
*** CVL powerstrip #16 - CVL nodes 13, 14, 15
*** CVL switch
*** CVL powerstrip #6 - CVL 1, 2, 3, 4, other CVL switch
* Right-side wall
** Circuit 2
*** VTLUUG powerstrip S2 - <code>temp88191</code>, <code>tardis</code>, 8-port switch
*** VTLUUG Rack 1 PDU - monitor, KVM switch, akhaten
** Circuit 4: Used for workstations
** Circuit 6
*** VTLUUG powerstrip C3 - Sunway 5-11
* Floor
** Circuit 14: Prometheus nodes 1-2
** Circuit 16: Stuff on middle desk - Poweredge 2900s, RAID boxes, Powerconnect 5524, etc
** Circuit 18: ???
* Circuits 15, 17, and 19 are not connected to outlets
 
== External Links ==
* [http://computing.ece.vt.edu/wiki/CVL Description of the CVL]
* [https://computing.ece.vt.edu/~jkh/Sessionaccounts/ Automated account creation]* [https://computing.ece.vt.edu/wiki/Software_Packages_and_Programs Installed software] 
[[Category:Computer laboratories]][[Category:Laboratorieslabs]][[Category:ECE LaboratoriesLabs]]
[[Category:Electrical and Computer Engineering]]
[[Category:Campus computing resources]]
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