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You are here: CLASSE Wiki>Computing Web>CLASSENewUsersGuide2014 (04 Feb 2023, WernerSun)Edit Attach
A Guide to CLASSE Computing Services
- Log In
- Reading Email and Scheduling Meetings
- Printing
- File Storage
- Turning Off Computers: Please Don't!
- Bring Your Own Device (BYOD)
- Services for External Users
- Running Programs
- Available, not fully supported programming/scripting environments
- Connecting to the Network
- CLASSE CAD/Illustration standards
- Plotting/Graphing
- Editing Documents
- Time Accounting and WBS numbers
- Collaborative Communication
- Responsible Use
- Contact Us
Log InWhen you obtained your CLASSE computing account, you were provided a userid and you set your own password. You can use them to login on any CLASSE managed computer, including your desktop computer if one was provided. Some lists of CLASSE computers are available athttps://wiki.classe.cornell.edu/Computing/WhichComputer Changing PasswordsYou can change your CLASSE password at any time. Use the Web page https://www.classe.cornell.edu/pwm/CLASSE managed computers: Your initial login MUST take place while connected to a CLASSE network Reocmmended: log OUT immediately after initial login to make sure you can log in when not connected to a CLASSE network. Instructions are available at https://wiki.classe.cornell.edu/Computing/UserAccountsAndPasswords and at https://wiki.classe.cornell.edu/Computing/FirstWindowsLogon |
Reading Email and Scheduling MeetingsAll Laboratory staff and faculty have accounts in Cornell's Exchange service, which is provided by Microsoft's cloud-based Office 365. It processes email associated with your Cornell email address and is used to schedule meetings. Note: Please report Office 365 email problems, including long delays in mail delivery, to the CIT help desk at 255-5500 or itservicedesk@cornell.edu If you don't report it, they can't know there's something wrong.Outlook Web AppOutlook Web App (OWA) is Microsoft's Web-based email reader and meeting scheduler athttp://outlook.cornell.edu/ Login to OWA by providing the userid your-NetID@cornell.edu (the suffix @cornell.edu is required) and the password associated with your Cornell NetID. For more information, see http://www.it.cornell.edu/cms/services/owa15/index.cfm OutlookThe full Outlook application provides somewhat different features from OWA. Outlook is installed as part of Microsoft Office on CLASSE-managed Windows and Macintosh computers. For more information, seehttp://www.it.cornell.edu/services/guides/facstaff_email/choose.cfm Outlook (along with many other Windows applications) is available to Linux (and other) computers by using WinAPP, the CLASSE Windows "Terminal Server". For details, see https://wiki.classe.cornell.edu/Computing/AccessingWinApp Microsoft Office is available to the Cornell community to use on personally owned computers for a nominal fee. See http://www.it.cornell.edu/services/software_licensing/available/ms_office.cfm#ms_hup |
Web BrowsingThe supported web browser at CLASSE is Vivaldi. Cornell and CLASSE web-based services sometimes do not work well with other browsers. Support for other browsers will be provided only on a "best effort" basis. |
PrintingTo print to a CLASSE printer, you must be on a CLASSE network. If your computer is connected to RedRover, eduroam or any other non-CLASSE network, please first connect to the CLASSE VPN by following the instructions at ClasseVPN. Please see PrintingAtCLASSE for printing instructions. CLASSE provides a large number of printers with a variety of capabilities. A black-and-white printer is easily available near every office. A large format color printer is available in each of the research buildings. See PrinterList to find the printer nearest you. Please do not attempt to fix printer problems on your own. It's too easy to mess them up and cause problems for everyone who needs to use them. Instead, please contact a member of the computer group or a designated printer support person.Set default printerMake sure you have configured your default printer to be one that's nearby. If your default printer is wrong, it'll print somewhere else. You might not want that to happen. In some cases it can be quite embarrassing.A4 vs 8.5" x 11" vs 11" x 17"Be careful to specify the correct paper size. U.S. printers are designed for paper which is 8.5" x 11". Most European documents are formatted for "A" size, which is larger. Trying to print A-sized documents usually will cause the printer to seem to hang, since it is waiting for someone to load the correct paper size. Similarly, only a few CLASSE printers can handle "Tabloid" documents which are sized 11"x17". |
File StorageDon't keep important files on the local computer you sit in front of! It's vital that you use CLASSE's backed-up file services. Seehttps://wiki.classe.cornell.edu/Computing/DataStewardship Your Linux home disk, user disk, scratch disk and project disk space are all on CLASSE file servers and are available using Samba.
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Turning Off Computers: Please Don't!Saving energy is great, but please do not turn off your CLASSE managed desktop computer. Doing so prevents software and anti-virus updates which usually happen during off-hours. However, turning off just the display is OK: it saves energy and does not prevent updates.In particular, notebook and laptop computers should be left powered on and connected to the network Monday evenings. If updates cannot be performed then, then the updates will happen as soon as the computer is turned on and connected to the network. This can make the computer almost unusable for a long time, just when you need it the most. |
Bring Your Own Device (BYOD)The CLASSE IT group is allowed to provide only a limited amount of support for computers not owned by CLASSE. A brief list of some non-CLASSE support services is available athttps://wiki.classe.cornell.edu/Computing/OutsideSupport Personally owned devices usually can access CLASSE resources from home or when connected to Cornell's RedRover or eduroam networks. See the Remote Access section. |
Services for External UsersExternal users may be issued a CLASSE computer account, which provides access to most CLASSE computer services, such as printing and centralized file storage. However, there are some limitations to the resources that can be accessed by external users. Please contact the CLASSE IT group for assistance if you find that you need additional access. For information on CLASSE IT support for user-managed or personally-owned computers, see above. |
Running ProgramsLinuxCLASSE encourages using Scientific Linux because this centralized computing resource is easy to access remotely, is highly available, provides more computing power, and is more supportable. For a list of Available Packages, Recommended Software, more Documentation and other useful information, see Linux Support Many computational resources are provided by CLASSE's Linux Compute Farm. It contains hundreds of CPU cores which can run jobs in batch or interactively, The farm is managed using the Grid Engine queuing system. Seehttps://wiki.classe.cornell.edu/Computing/GridEngine qsubqsub is the Linux command used to schedule batch jobs on the Linux Compute Farm. See https://wiki.classe.cornell.edu/Computing/GridEngine#Submitting_a_job_script qrshqrsh is the Linux command used to initiate an interactive session on the Linux Compute Farm. It's often used to run software like Matlab. See https://wiki.classe.cornell.edu/Computing/GridEngine#Interactive_Jobs WindowsWhile Linux is the preferred operating system at CLASSE, Windows may be required when connecting to hardware, using an app with no Linux version installed (e.g. Inventor, LabVIEW), or running a very graphics-intensive application. A list of the software provided on all CLASSE Windows 7 computers is available athttps://wiki.classe.cornell.edu/Computing/StandardSoftware#Windows_7 Quite a few additional products have been licensed and can be provided with little or no additional charge. A few can be easily installed by anyone. See https://wiki.classe.cornell.edu/Computing/SelectedSelfServiceSoftware Please contact the CLASSE IT group for information about additional software products. WinAPPThe CLASSE computer called "WinAPP" provides access to a variety of Windows applications so they can be used from Linux, MacOS and Windows. Seehttps://wiki.classe.cornell.edu/Computing/AccessingWinApp MacintoshA list of the software provided for CLASSE Macintosh computers is available at Macintosh CLASSE-Standard Software |
Available, not fully supported programming/scripting environments
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Connecting to the NetworkA large variety of networks are provided in CLASSE buidings. Plugging a computer into just any network jack is unlikely to work. If you're using a desktop computer provided to you by the Laboratory, it is already connected to the network. Please contact the CLASSE IT group if you have to move your computer, whether to a different room or to a new location in your office. Special arrangements must be made for connecting data acquisition equipment. Please contact the CLASSE IT group when you are considering obtaining networked data acquisition equipment so we can help plan for it.RedRover and eduroam (Cornell wireless)Wireless network access is provided by Cornell University. Please contact the CIT Service Desk with any problems. We recommend using these networks, in order of preference:
Virtual Private Network (CLASSE VPN)If your computer isn't connected directly to a CLASSE network, you might need to start the CLASSE VPN to access some CLASSE services. The Campus wireless networks are considered external to the Lab and thus might require use of the VPN. For details, seehttps://wiki.classe.cornell.edu/Computing/ClasseVPN |
CLASSE CAD/Illustration standardsCLASSE has a EngineeringDesignDrafting/Illustration Department to assist in the production of computer aided design and technical illustrations. Autodesk Inventor Professional (3D) and AutoCAD (2D) are the applications used by the EngineeringDesignDrafting/Illustration Department in the design, creation, modification, analysis, or optimization of physical components; drawings produced by Autodesk Inventor Professional or AutoCAD are stored in a Vault database. Adobe Creative Suite is used to do other graphics-related tasks. Drafting/illustration/graphics documents that are important for CLASSE research or education must meet CLASSE standards and must be accessible to appropriate CLASSE staff for future reference/modification. The EngineeringDesignDrafting/Illustration Department and associated infrastructure are set up to effectively attain these goals. For "one-off" projects of limited usefulness, the CLASSE IT group recommends the use of gimp on a Linux computer; gimp is also available on Windows/Mac. For assistance, or more information on CAD, illustration or other graphics needs, see:https://www.classe.cornell.edu/Internal/DesignDraftingServices/WebHome.html or contact Tim O'Connell . |
Plotting/GraphingMost project staff settle on a plotting/graphing standard for themselves; consult your PI/mentor/librarian for more information on plotting or graphing. The selection of packages available can be found on https://wiki.classe.cornell.edu/Computing/PlottingGraphingPackagesThe plotting or graphics results provided by Microsoft Excel don't meet publication standards and are of limited usefulness. |
Editing DocumentsGeneral DocumentsMicrosoft OfficeMicrosoft Office (including Microsoft Word) is available on all Windows and Macintosh computers managed by CLASSE,See Microsoft Office is available to members of the Cornell community for a low fee. However, the CLASSE IT group urges the use of LibreOffice (which is free) on personally owned computers of all types. See below. Information about Office for personal use is available at http://www.it.cornell.edu/services/software_licensing/available/Microsoft-Office-for-Faculty-and-Staff.cfm and http://www.it.cornell.edu/services/software_licensing/available/Microsoft-Office-for-Students.cfm Open Source Office SoftwareLibreOffice is available on all Linux computers managed by CLASSE. It's available for free from their official Web site. It is available to everyone at CLASSE when you login on LNX201.CLASSE.CORNELL.EDU See http://www.libreoffice.orgTechnical Documents and Papers for PublicationAlthough people find Microsoft's Word document processing system to be convenient for small projects, it has many bugs, limitations and compatibility problems which make it extremely inconvenient when used for large, collaborative documents or for documents which need to be readable after several years. At least twice, Microsoft has dropped support for documents written in previous Word formats. As a result, editing environments based on LaTeX are much more robust. Detailed comparisons between LaTex and Word are available athttp://www.streamtoolsonline.org/word-v-latex.html and http://openwetware.org/wiki/Word_vs._LaTeX LaTeXLaTeX is suitable for producing large, collaborative documents The LaTeX format is very stable and portable; it produces documents that are readable and editable over time, and is available on all CLASSE Linux, Windows and Macintosh computers. The file format is independent of which version of LaTeX used, and which host operating system it is running on. Information about the use of LaTeX at CLASSE is available at https://wiki.classe.cornell.edu/Computing/LaTeX |
Time Accounting and WBS numbersMany of CLASSE's research grants require detailed time accounting so that each person's pay is charged to appropriate accounts. Each account has its own set of WBS (Work Breakdown Structure) numbers. Members of the CLASSE IT group have to keep careful track of how much time they charge to which WBS, for example.RepliconReplicon and WBS numbers are used by CLASSE to do time accounting for both salaried and hourly staff. Seehttps://wiki.classe.cornell.edu/Computing/RepliconQuickstart WorkdayFor salaried staff, Workday is used to record vacation and sick time. Seehttp://workday.cornell.edu/ |
Collaborative Communication#ZoomZoomZoom is a no-cost Web-based video conferencing system provided by Cornell. It can be used to contact anyone who has a computer.
https://it.cornell.edu/zoom WikiThe CLASSE Wiki lets you share documentation and other information in a variety of formats. Most pages are public, but some are private, requiring your CLASSE userid and password. Seehttps://wiki.classe.cornell.edu/Computing/ClasseWikis Cornell BoxSimilar to Cornell's own DropBox, Box provides a way for you to share large files internationally. Seehttp://www.it.cornell.edu/services/box/ Please do not use the commercial Dropbox service. |
Responsible UseSince CLASSE's computational resources were purchased using tax-payers' money, it behooves us to use them responsibly. CLASSE's "Responsible Use statement" provides a description of expectations when you use computers at the Lab:https://wiki.classe.cornell.edu/Computing/ComputerUseGuidelines |
Contact UsIf you have any questions about CLASSE computing, or would like help with a problem, please don't hesitate to contact the CLASSE computer group:
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