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Mac OS X build instructions Prerequisites on Mac OS X. 10.10.x (Yosemite) or later running on Intel hardware (PowerPC hardware is not supported nor is building an X11 variant). The 'rr' designation dates from before VirtualGL was called 'VirtualGL' (i.e. Before it became an open source project), and it is no longer relevant. The symlinks that VirtualGL previously installed for Chromium (the long-obsolete parallel rendering package, not the web browser) are no longer included in this release. Jun 24, 2020.
Overview
While the majority of interactive graphical applications that run on the SCC perform well using VNC, there are a class of complex interactive visualization applications that require additional software called VirtualGL in order to perform adequately on users’ workstations or desktops. These include OpenGL applications that require full 3D hardware acceleration like those utilized by the Functional MRI analysis community (e.g. freesurfer).
Research Computing has set aside a limited number of shared nodes that utilize VirtualGL to support these complex visualization applications on the SCC. To successfully run an interactive graphics job that requires VirtualGL, the user has to be on the BU Network. If you are located outside of the campus network please see the Working Remotely section to gain access to qvgl nodes. The process to start a graphics session (job) is very similar to starting a VNC session.
It is important to note that the VirtualGL offering is a limited resource and should only be used for applications that require complex OpenGL 3D hardware acceleration. Most applications such as MATLAB, RStudio, QGIS, and others do not require this and will function well using the typical VNC session that we offer on the SCC.
Table of Contents
VNC password setup
The first time you use vncserver or start an interactive graphics job, you have to establish your VNC password. This VNC password must be different from your Kerberos password and, if you have one, your local SCF Linux password. To set your VNC password, execute the following command:
Start Interactive Graphics Job
To start an Interactive Graphics Job execute the following command (on any SCC login node):
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This command accepts many batch job options including project name, time limit, email options, etc. It also accepts vncserver flags including the geometry flag to set the VNC screen resolution. The general usage of the command is:
For example:
If the job starts successfully, you should see the output that will provide you with the information about setting up tunneling and running the VNC session:
Configure SSH tunnel
Linux and Mac users can execute the
ssh
command provided in the qvgl script output. This should be entered in your local machine’s terminal window, e.g.You will be asked to enter your Kerberos or local SCF password.
Windows users can execute the same command in their MobaXterm or Cygwin local terminal window or follow these steps to set up tunneling using putty.
Connect with VNC Client – PC
If you do not have the VNC viewer built into your system, download it from www.realvnc.com. When you install it, select only the VNC Viewer (you do not need to install VNC server on your local machine). Start the VNC Viewer and when a dialog window appears, enter:
where
XXXX
is the number you selected while configuring SSH tunneling (7070 in the example above). You will be prompted to enter your password. Use your VNC (not Kerberos) password. Note ify notes 1 43.Connect with VNC Client – MAC
Recent versions of Mac OSX have a VNC client built into the operating system. To connect on a Mac, click on the desktop then press the key combo ⌘-K. In the Connect to Server window that opens, enter the following into the Server Address box, using the port number selected earlier in place of the
XXXX
:You will be prompted to enter your password. Use your VNC (not Kerberos) password.
Running Graphics Application
Open a terminal Window (In the menu Applications -> System Tools -> Terminal; Or press right mouse button and select “Open in terminal”).
Start graphics application using VirtualGL engine
vglrun
(Load modules first, if needed):.
Terminating Interactive Graphics Job
Focuswriter themes. To terminate your Interactive Graphics session close your VNC window, exit the tunneling session and delete your job:
.
Working Remotely
When working remotely (not on the BU network) and want to use
qvgl
, you need to set up an ssh tunnel
to the login node while port forwarding to the compute node.In the above example, the qvgl job has been scheduled to scc-v01 on port 5901. These values will be used to create the ssh tunnel new terminal connected to your local machine:
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TigerVNC was originally based on the (never-released) VNC 4 branch ofTightVNC. More informationregarding the motivation for creating this project can be found in theprojectannouncement.
The latest release of TigerVNC can be downloaded from ourGitHub releasepage. Besides the source code we also provide self-contained binariesfor 64-bit and 32-bit Linux, installers for 64-bit and 32-bit Windows anda universal binary for Intel-based Macs. We also try to provide packagesfor various distributions when we easily can.
Pre-release builds of the experimental next-generation code can befound here.
TigerVNC is also provided with many distributions, such asFedora,OpenSUSE,FreeBSD,Arch Linux,Red Hat Enterprise Linux andSUSE Linux Enterprise.
The project has three mailing lists:
Moderated announcement list for new releases and other important news.
Support and general discussion list for users of TigerVNC. Please use this list for bug reports.
Discussion list for TigerVNC developers. This list can be used for patch submissions and other development ideas.
The man pages for the different programs are available here in HTML form: Rhinoceros 5 4 – versatile 3d modeler free.
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This documentation is for the Unix programs but is mostly relevant forthe equivalent Windows programs as well.
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If there is an issue you'd really like to get fixed, or if you're aprogrammer that could use some extra cash, head over toBountysourcefor information on how to trade bugs and features for the almighty buck.You can also make a general donation, which we (the TigerVNC admins)can distribute as bounties on existing issues.
A community maintained version of the VNC/RFB specification is maintained by the rfbproto project.
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Assorted documentation about TigerVNC and development can be found inthe developmentsection of the wiki.