UMIACS - User contributions [en]

Matlab

2017-03-08T22:01:01Z

Yufeih:

UMIACS has [[Matlab]] licenses that cover Linux, Windows and Mac. To access them you have to be using a university owned computer. If you would like to run Matlab on a machine that is not University-owned, you can check the pricing through OIT/SLIC [http://www.oit.umd.edu/units/slic/products/mathworks/matlab.html here]

==Linux==
Below are the different versions of Matlab across our supported linux workstations and servers. The one in bold is our latest version. RHEL5 is no longer supported as of R2013b, and 32-bit Linux distributions are no longer supported as of R2012b. For more information, please see [http://www.mathworks.com/support/sysreq/roadmap.html this page].

[[Modules | Modules]] is the preferred way to interact with Matlab and the page will provide information on adding Matlab into your environment and using it.

===RHEL5===
* /opt/matlab-r2007b
* /opt/matlab-r2008a
* /opt/matlab-r2008b
* /opt/matlab-r2009b
* /opt/matlab-r2010a
* /opt/matlab-r2010b
* /opt/matlab-r2011a
* /opt/matlab-r2011b
* /opt/matlab-r2012a
* /opt/matlab-r2012b
* '''/opt/matlab-r2013a'''

===RHEL6,7/Ubuntu===

* /opt/common/matlab-r2007b
* /opt/common/matlab-r2008a
* /opt/common/matlab-r2008b
* /opt/common/matlab-r2009b
* /opt/common/matlab-r2010a
* /opt/common/matlab-r2010b
* /opt/common/matlab-r2011a
* /opt/common/matlab-r2011b
* /opt/common/matlab-r2012a
* /opt/common/matlab-r2012b
* /opt/common/matlab-r2013a
* /opt/common/matlab-r2013b
* /opt/common/matlab-r2014a
* /opt/common/matlab-r2014b
* '''/opt/common/matlab-r2015a'''

==Windows==
Below are the different locations of Matlab available for university-owned machines running Windows. The one in bold is the latest version we have available:

* Matlab r2007a
* Matlab r2007b
* Matlab r2008a
* Matlab r2008b
* Matlab r2009a
* Matlab r2009b
* Matlab r2010a
* Matlab r2010b
* Matlab r2011a
* Matlab r2011b
* Matlab r2012a
* Matlab r2012b
* Matlab r2013a
* Matlab r2013b
* Matlab r2014a
* Matlab r2014b
* Matlab r2015a
* '''Matlab r2016a'''

==macOS==
Below are the different locations of Matlab available for university-owned machines running macOS. We expect that all versions should run on macOS 10.8 and newer. The one in bold is the latest version we have available:

* Matlab r2008a
* Matlab r2008b
* Matlab r2009b
* Matlab r2010a
* Matlab r2010b
* Matlab r2011b
* Matlab r2012a
* Matlab r2012b
* Matlab r2013a (macOS 10.8+)
* '''Matlab r2013b''' (macOS 10.8+)

==License Troubleshooting==

Campus has a limited number of seats for Matlab itself, as well as the various toolboxes. When calling functions in a toolbox, Matlab will automatically check out a license, making it temporarily unavailable to other users. Sometimes it's necessary to check the number of toolbox licenses available.

===Windows License Troubleshooting===
On Windows machines, the necessary command is as follows. Please note that you may need to adjust the path to reflect the available Matlab versions and the installation path. Additionally, this assumes that you are using a 64-bit version. "win64" needs to be adjusted to "win32" on a 32-bit installation:
$MATLAB_PATH\etc\win64\lmutil lmstat -c "$MATLAB_PATH\licenses\network.lic" -f $TOOLBOX_SHORTNAME

As an example, here is how to query Matlab r2012b on a 64-bit Windows 7 host for the Aerospace Blockset Toolbox:
"C:\Program Files\matlab\r2012b\etc\win64\lmutil.exe" lmstat -c "C:\Program Files\matlab\r2012b\licenses\network.lic" -f Aerospace_Blockset

===Unix License Troubleshooting===
On Unix machines, the necessary command is as follows. Please note that you may need to adjust the path to reflect the available Matlab versions and the installation path. Additionally, this assumes that you are using a 64-bit version. "glnxa64" needs to adjusted to "glnx86" on a 32-bit installation::
$MATLAB_PATH/bin/glnxa64/lmutil lmstat -c $MATLAB_PATH/licenses/network.lic -f $TOOLBOX_SHORTNAME

As an example, here is how to query Matlab r2010b on our 64-bit RHEL6/RHEL7 hosts for the Parallel Computing Toolbox:
/opt/common/matlab-r2015a/bin/glnxa64/lmutil lmstat -c /opt/matlab-r2010b/licenses/network.lic -f Distrib_Computing_Toolbox

===Toolbox Shortnames===
The toolbox names themselves don't always work with this command; Rather, Matlab has a set of shortnames which can be passed to the lmstat command. The following are all the valid shortnames:

Aerospace_Blockset
Aerospace_Toolbox
Bioinformatics_Toolbox
Communication_Blocks
Communication_Toolbox
Compiler
Control_Toolbox
Curve_Fitting_Toolbox
Data_Acq_Toolbox
Database_Toolbox
Datafeed_Toolbox
Distrib_Computing_Toolbox
Econometrics_Toolbox
Excel_Link
Fin_Derivatives_Toolbox
Financial_Toolbox
Fixed_Income_Toolbox
Fixed_Point_Toolbox
GADS_Toolbox
Identification_Toolbox
Image_Acquisition_Toolbox
Image_Toolbox
Instr_Control_Toolbox
MAP_Toolbox
MATLAB
MATLAB_Builder_for_Java
MATLAB_Coder
MATLAB_Excel_Builder
MATLAB_Report_Gen
MPC_Toolbox
Neural_Network_Toolbox
Optimization_Toolbox
PDE_Toolbox
Real-Time_Workshop
Robust_Toolbox
Signal_Blocks
Signal_Toolbox
SimMechanics
Simscape
SIMULINK
Simulink_Control_Design
Stateflow
Stateflow_Coder
Statistics_Toolbox
Symbolic_Toolbox
Video_and_Image_Blockset
Virtual_Reality_Toolbox
Wavelet_Toolbox

If you are having problems, feel free to contact [[HelpDesk | UMIACS Staff]], however please note that the Matlab license servers are hosted by campus' Division of Information Technology.

==Matlab Customizations==

You can tweak your Matlab experience using a file "startup.m". If this file is present in the current working directory where you launch Matlab, it will be executed. You can perform a variety of tasks using this file. These include (but are not limited to) customizing the window environment, setting variables for later use, and enabling use of 3rd party toolboxes. Alternatively, you can use the userpath env variable to set a path other than the current working directory for startup and 3rd party toolbox locations. Please see the following links for more information:

* [http://www.mathworks.com/help/matlab/ref/matlabrc.html Mathworks: Startup.m]
* [http://www.mathworks.com/help/matlab/matlab_env/startup-folder-for-the-matlab-program.html#bs6j57e-5 Mathworks: Userpath function]

Network/Troubleshooting

2017-01-24T15:14:19Z

Yufeih:

Occasionally network related issues may arrise. The following outlines basic troubleshooting methods.

==Check Network Connection==
*Check that the ethernet cable is plugged in or that you are connected to a wireless network.
*Check that you have an IP address.
**On Windows: type 'ipconfig /all' into the command prompt
**Linux/UNIX based hosts: type 'ifconfig' into a terminal
==PING==
PING is a network utility that sends ICMP packets to a specified host to test network connectivity.
*Open up a command prompt. Type 'ping' followed by the hostname or ip address of the host you want to test connectivity too
bash$ ping google.com
PING google.com (74.125.228.34) 56(84) bytes of data.
64 bytes from iad23s06-in-f2.1e100.net (74.125.228.34): icmp_seq=1 ttl=52 time=4.52 ms
64 bytes from iad23s06-in-f2.1e100.net (74.125.228.34): icmp_seq=2 ttl=52 time=4.17 ms
64 bytes from iad23s06-in-f2.1e100.net (74.125.228.34): icmp_seq=3 ttl=52 time=4.41 ms
64 bytes from iad23s06-in-f2.1e100.net (74.125.228.34): icmp_seq=4 ttl=52 time=4.04 ms
*Linux/UNIXS may want to add the '-c' flag followed by a number to specify how many times to ping the destination host.
==Trace Route==
The traceroute tool utilizes the IP protocol to track the route one's packets take through a network. Traceroute is useful when trying to figure out why a host is unreachable because it shows where the connection failed.
*Windows:
**In a command prompt type "tracert" followed by the hostname or IP of the destination host you want to test the route too.
C:\>tracert google.com
Tracing route to google.com [74.125.228.38]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms gw-486.umiacs.umd.edu [192.168.86.1]
2 <1 ms <1 ms <1 ms umfirewall00.umiacs.umd.edu [128.8.120.17]
3 13 ms <1 ms <1 ms avw1hub-gw.umiacs.umd.edu [128.8.120.1]
4 1 ms <1 ms <1 ms vlan8.css-priv-r1.net.umd.edu [128.8.6.129]
5 <1 ms <1 ms <1 ms gi6-1.css-core-r1.net.umd.edu [128.8.0.117]
6 <1 ms <1 ms <1 ms gi3-2.css-fw-r1.net.umd.edu [128.8.0.82]
7 1 ms 2 ms 2 ms 128.8.0.226
8 2 ms 2 ms 2 ms 107-0-84-29-static.hfc.comcastbusiness.net [107.0.84.29]
9 3 ms 2 ms 2 ms xe-3-1-2-0-ar04.capitolhghts.md.bad.comcast.net [68.85.114.113]
10 5 ms 6 ms 4 ms pos-5-7-0-0-cr01.ashburn.va.ibone.comcast.net [68.86.90.85]
11 4 ms 4 ms 5 ms pos-0-2-0-0-pe01.ashburn.va.ibone.comcast.net [68.86.86.70]
12 4 ms 6 ms 4 ms 75.149.231.62
13 42 ms 4 ms 4 ms 209.85.252.80
14 5 ms 5 ms 5 ms 72.14.238.175
15 4 ms 4 ms 5 ms iad23s06-in-f6.1e100.net [74.125.228.38]
Trace complete.
*Linux/UNIX:
**In a terminal type 'traceroute' followed by the hostname or ip address of the host you want to test the route too.
bash$ traceroute google.com
traceroute: Warning: google.com has multiple addresses; using 74.125.228.72
traceroute to google.com (74.125.228.72), 64 hops max, 52 byte packets
1 10.109.160.1 (10.109.160.1) 1.329 ms 1.086 ms 1.232 ms
2 129-2-129-129.wireless.umd.edu (129.2.129.129) 2.780 ms 1.924 ms 2.127 ms
3 te1-6.css-core-r1.net.umd.edu (128.8.0.121) 2.514 ms 2.293 ms 1.863 ms
4 gi3-2.css-fw-r1.net.umd.edu (128.8.0.82) 2.429 ms 2.548 ms 2.284 ms
5 128.8.0.226 (128.8.0.226) 3.838 ms 3.465 ms 3.635 ms
6 107-0-84-29-static.hfc.comcastbusiness.net (107.0.84.29) 3.941 ms 3.445 ms 3.303 ms
7 xe-3-1-2-0-ar04.capitolhghts.md.bad.comcast.net (68.85.114.113) 3.522 ms 4.333 ms 3.441 ms
8 pos-5-1-0-0-cr01.ashburn.va.ibone.comcast.net (68.86.90.241) 7.269 ms
pos-4-12-0-0-cr01.newyork.ny.ibone.comcast.net (68.86.90.173) 9.025 ms 7.192 ms
9 pos-0-4-0-0-pe01.ashburn.va.ibone.comcast.net (68.86.86.146) 5.236 ms 5.636 ms 6.229 ms
10 75.149.231.62 (75.149.231.62) 5.186 ms 5.113 ms 6.725 ms
11 209.85.252.46 (209.85.252.46) 6.836 ms 6.352 ms 78.371 ms
12 72.14.238.247 (72.14.238.247) 7.823 ms 7.616 ms 8.331 ms
13 iad23s07-in-f8.1e100.net (74.125.228.72) 10.798 ms 13.383 ms 7.540 ms
==Other Things to consider==
*Is your IP address statically set?
**In order for networking to function properly a machine must have a unique IP address on its network. In many cases IP address are assigned automatically via the DHCP protocol, but it is also possible to statically set an IP address. If your machine happens to have a statically set IP address that conflicts with that of another host, networking issues may arrise.
*Are you behind a firewall?
**Some establishments use firewalls to restrict certain types of traffic both in and out of their networks. If you are having trouble accessing a specific service, this might be the case. To get around this you can connect to the VPN, or use SSH tunneling.
*Other useful commands:
**dig -performs DNS lookups and displays the answers that are returned from the name server(s) that were queried
**host -simple utility for performing DNS loookups
**netstat (linux/UNIX) -shows network status
**route print (Windows) -shows network routing tables.

==Change your default DNS server==
Please see [[ Network/Troubleshooting/DNS | DNS ]] to change your default DNS server

Network/Troubleshooting/DNS

2017-01-24T15:13:48Z

Yufeih: Yufeih moved page PublicDNS to Network/Troubleshooting/DNS

We have experienced in the past a number of issues with home internet providers not correctly handling DNS resolution for UMIACS hostnames that can seem to be affecting connectivity to UMIACS.

In the face of this, here are a few last-resort options for bypassing problematic DNS services...

===[http://en.wikipedia.org/wiki/Google_Public_DNS Google DNS]===

IP Addresses:
* 8.8.8.8
* 8.8.4.4

===[http://en.wikipedia.org/wiki/OpenDNS OpenDNS]===

IP Addresses:
* 208.67.222.222
* 208.67.220.220
* 208.67.222.220
* 208.67.220.222

==How to change your default DNS servers==
* '''Windows Vista/7/8/10:''' Under Control Panel > Network and Internet > Network and Sharing Center
::# Click "Change adapter settings" on the left.
::# Right click on the network adapter you're using, choose "Properties" from the context menu.
::# Select "Internet Protocol Version 4 (TCP/IPv4)" and click on the "Properties" button.
::# If not selected, choose "Use the following DNS server addresses:"
::# Enter the public DNS addresses you desire to use.
::# click OK, and close the remaining windows

* '''macOS:''' System Preferences > Network > Advanced > DNS

* '''Linux:''' edit your /etc/resolv.conf file and change the ip addresses after "nameserver" to any of those listed above.

==Manual Lookup==
If you are having problems getting to UMIACS hosts you can use our name servers to resolve those specific host names then connect using the IP addresses you lookup. Our name servers are 128.8.120.19, 128.8.120.50, and 128.8.132.75 to use this information to get the ip address of the host somehost.umiacs.umd.edu you would use the command "nslookup somehost.umiacs.umd.edu 128.8.120.19", from a linux, windows, or mac command prompt.

Network/Troubleshooting/DNS

2017-01-24T15:10:40Z

Yufeih:

FileTransferProtocol

2016-12-13T17:17:07Z

Yufeih:

UMIACS provides FTP services for transferring data to and from external collaborators. Since the FTP protocol is conducted entirely in plaintext, external users login to the service as anonymous, and internal users can access the file directories internally. Users will never authenticate over FTP with their UMIACS account. Please see [[SFTP]] for more information on a secure file transfer protocol.

==Getting data from Collaborators==

Collaborators can drop data for users into their FTP incoming file system, located from the FTP service at

<pre>ftp://ftp.umiacs.umd.edu/incoming/<username>/</pre>

FTP logins can write to this space to upload data, but cannot list the files they have placed there. Users can then access the data in their ftpincoming space from

* '''/fs/ftp/incoming/<username>''' from supported unix machines. Click [[ FTP/macOS/Finder | here ]] to see a visual guide.
* '''\\umiacs-webftp\ftp-umiacs\incoming\<username>''' - from supported windows machines. Click [[ FTP/Windows/Explorer | here ]] to see a visual guide.

/fs is an automounted file system. This means it will mount other file systems on demand. Although the ftp directory may not be visible to an ls command while in fs, one can still cd into ftp.

Please move your data as soon as possible after it is left for you - files older than 15 days are subject to deletion as necessary.

==Publishing data sets via FTP==
{{Note|'''This part of our FTP service is deprecated in favor of the UMIACS Object Store. Please see [[OBJbox]].'''}}

Users can place data to be externally accessible in their public FTP space, which is located from the FTP service as

<pre>ftp://ftp.umiacs.umd.edu/pub/<username>/</pre>

To upload data to your public site, you can upload data to,

* '''/fs/ftp/pub/<username>''' from supported unix machines
* '''\\umiacs-webftp\ftp-umiacs\pub\<username>''' - from supported windows machines

==Effects of tmpwatch==
There is a configuration of tmpwatch[http://linux.die.net/man/8/tmpwatch] in place on our FTP service that will remove any files, regardless of owner or permissions, from any /fs/ftp/incoming/ directory that have not been accessed in 30 days.

FileTransferProtocol

2016-12-13T17:15:58Z

Yufeih:

UMIACS provides FTP services for transferring data to and from external collaborators. Since the FTP protocol is conducted entirely in plaintext, external users login to the service as anonymous, and internal users can access the file directories internally. Users will never authenticate over FTP with their UMIACS account. Please see [[SFTP]] for more information on a secure file transfer protocol.

==Getting data from Collaborators==

Collaborators can drop data for users into their FTP incoming file system, located from the FTP service at

<pre>ftp://ftp.umiacs.umd.edu/incoming/<username>/</pre>

FTP logins can write to this space to upload data, but cannot list the files they have placed there. Users can then access the data in their ftpincoming space from

* '''/fs/ftp/incoming/<username>''' from supported unix machines
* '''\\umiacs-webftp\ftp-umiacs\incoming\<username>''' - from supported windows machines. Click [[ FTP/Windows/Explorer | here ]] to see a visual guide.

/fs is an automounted file system. This means it will mount other file systems on demand. Although the ftp directory may not be visible to an ls command while in fs, one can still cd into ftp.

Please move your data as soon as possible after it is left for you - files older than 15 days are subject to deletion as necessary.

==Publishing data sets via FTP==
{{Note|'''This part of our FTP service is deprecated in favor of the UMIACS Object Store. Please see [[OBJbox]].'''}}

Users can place data to be externally accessible in their public FTP space, which is located from the FTP service as

<pre>ftp://ftp.umiacs.umd.edu/pub/<username>/</pre>

To upload data to your public site, you can upload data to,

* '''/fs/ftp/pub/<username>''' from supported unix machines
* '''\\umiacs-webftp\ftp-umiacs\pub\<username>''' - from supported windows machines

==Effects of tmpwatch==
There is a configuration of tmpwatch[http://linux.die.net/man/8/tmpwatch] in place on our FTP service that will remove any files, regardless of owner or permissions, from any /fs/ftp/incoming/ directory that have not been accessed in 30 days.

2016-06-07T17:01:19Z

Yufeih: Access FTP incoming folders on windows explorer

Access FTP incoming folders on windows explorer

File:Windows-Search for windows explorer.png

2016-06-07T16:56:05Z

Yufeih: Windows - Search for Windows Explorer

Windows - Search for Windows Explorer

File:Icon.png

2016-06-07T16:51:36Z

Yufeih: Windows - FIle Explorer icon

Windows - FIle Explorer icon