GRAPPA

Grid Access Portal for Physics Applications
 

             

Grappa demo: Getting Started

If you have already started up the XCAT Science Portal and have opened a web browser to the login screen, please proceed with the directions below. Otherwise, please see the Grappa demo install instructions here.

Summary of steps:

  1. Login
  2. Click on Notebook Menu

Login:

You should see a login screen such as follows:

AN: Login



Welcome to the XCAT Science Portal!

Please enter your portal username and GSI passphrase
to log into the XCAT Science Portal system © :
Portal Username:*
GSI Passphrase:
* Note: If you don't have a portal username, it will be created the first time you log in.

Enter any username (no spaces, please) in the Portal Username input box. Enter your GSI credential passphrase in the GSI passphrase. Note: You must have your GSI credentials properly installed on the machine where the portal server is being run.* Click the login button. If the login was successful, you will be forwarded to your portal desktop.

* Your GSI credentials should be installed in a .globus directory within your home directory. It should contain two files: usercert.pem and userkey.pem. The permissions on userkey.pem should be user read-only.

Click on Notebook Menu:

Your desktop will look similar to the following:

Portal Servlet

Portal desktop for ssmallen


Notebook Menu

Science Portals Webpage

LDAP Browser

Desktop Controls

You can either add a new icon or remove an existing one.

Enter title for new icon:
Enter URL to visit on click:

Enter title of icon to be removed:

The top row of icons contains a number of url links which can either be links to other web pages or links to other componenets of the XCAT Science Portal. For example, Science Portal webpage is a link to the XCAT Science Portal project website while Notebook Menu and LDAP Browser are other components of the XCAT Science Portal. The Notebook Menu link will take the user to a notebook selection screen and the LDAP Browser will take the user to a generic LDAP browser (we will not cover the LDAP browser in this tutorial).

You can add further links to your desktop using the Desktop controls. To add a new entry, just type in an alias for your url, followed by the real url, and then click the Add Icon button.

To start, just click on Notebook Menu.

ActiveNotebook: Select



ActiveNotebook: Select

 new notebook with name 
-- or --
select a notebook and then press a button below:
-- or --
WebDav Hostname:   WebDav Portnumber:   Archives Location:   Archives path:   Metadatabase server:  
 or  
-- or --
back to the login menu.
into server to change identity.

In this menu, you have 3 choices:

  1. create a new notebook,
  2. open an existing notebook, or
  3. import/export a notebook

We will first import the athena notebook. We have set up a webdav server on atlas.uits.iupui.edu, the tier2 site at IUPUI, to store notebooks for ATLAS users. The default parameters are set up to use this webdav server so just click the Import button.

Active Notebook:Select Notebook to Import
 Select a notebook to import







A number of notebooks are displayed in the selection box which are available for import. Scroll down the list until you reach the entry:

athena --> Athena.2128ssmallen1.5.10

Click the Import button and the notebook will be imported into your portal. Note: that the import action uses gridftp to copy the notebook from the server atlas.uits.iupui.edu (the IU tier2 center); therefore users must be added to the grid-mapfile. If you are not already added to the grid-mapfile on atlas.uits.iupui.edu, please send mail to ssmallen@cs.indiana.edu and/or tsulanke@indiana.edu. The import operation can take a couple minutes. If the import is successful, you will see the following window:

ActiveNotebook: Import Operation



 Import Opearation was successful 

Click the Return to Notebook Menu button. You should see that the Athena notebook is displayed in the notebook selection box:

ActiveNotebook: Select



ActiveNotebook: Select

 new notebook with name 
-- or --
select a notebook and then press a button below:
-- or --
WebDav Hostname:   WebDav Portnumber:   Archives Location:   Archives path:   Metadatabase server:  
 or  
-- or --
back to the login menu.
into server to change identity.

Hightlight Athena and click the list sessions button to see the following window:

ActiveNotebook: Select Session



ActiveNotebook: Select Session

currently selected notebook :
Athena
select a session and then press a button below:
-- or --
you can back to the select notebook menu.

In this menu, you can access session of your notebook. Each session is a in a sense a working copy of a notebook. Since we've just opened the notebook, there exists one default session and most often, one session is sufficient. But in cases where you want to save the current status of your notebook yet continue working (i.e., backup), you can clone your current session. For now, we'll just simply open the default session. Hightlight Athena (session) and click the open button. You will now be able to access the Athena notebook. The notebook will contain further documentation inside the notebook on how to use it. General documentation about the structure of a notebook is included in the Notebook_Intro and Notebook_Manual available from the Select Notebook menu.