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Logging in to the Research instance on IDAS

Once you receive an email confirming that your IDAS account is ready, follow the steps below to start an IDAS session.

1. Open any web browser. 

2. Go to https://idas.uiowa.edu/research/hub/home. 

3. Log in using your HawkID and password.

4. Authenticate the login with Duo. More information about Duo can be found here.

5. Click the blue button Start My Server.

Open

Troubleshooting notes

Instead of Start My Server, do you see a red button Stop My Server, like in the screenshot below?

Open

This means that your IDAS session is already running. From here, you have 2 options:

• Click My Server to continue accessing your IDAS session.

• Click Stop My Server if you want to stop or restart your IDAS session.

  • Restarting your session can be helpful if you want to change from Jupyter to RStudio, change to a specific software version, or change the resources available to your IDAS session (CPU cores, RAM, GPU). For more details, see https://uiowa.atlassian.net/wiki/spaces/hpcdocs/pages/76514933/Accessing+IDAS+for+Research+Use#Restarting-your-IDAS-session.

6. Fill out the Server Options form, using the instructions on the form. Please also see the notes below.

a) CPU Cores: Fill in the number of CPU cores you want to use in IDAS, with 2 as the minimum and 32 as the maximum.

• If left blank, the default 2 will be used.

b) Memory Limit: Fill in the amount of RAM (GB) you want to use in IDAS, with 8 as the minimum and 512 as the maximum.

• If left blank, the default 8 will be used.

c) GPU: 

• If you are not using GPU, choose "None". This is the default selection.

• If you have GPU-enabled code, select the type of GPU that you want to use. For more information, please see https://uiowa.atlassian.net/wiki/spaces/hpcdocs/pages/76515038.

• GPUs are a finite resource on IDAS and assigned on a first come first served basis. Please request a GPU only if you need to use it and shut down your IDAS server when you are finished so that other users can share the resources.

d) Mount Argon Home: 

• If you do not have an Argon (HPC) account, choose "No". This is the default selection.

• Only if you have an Argon account and want your Argon home directory to be accessible from IDAS, choose "Yes".

  • If you select "Yes" but don't have an Argon account, your IDAS session may fail to start.

  • After the IDAS session starts, your Argon home directory will be available in IDAS in the hpchome directory.

  • For more information about accessing your Argon home directory from IDAS, please see https://uiowa.atlassian.net/wiki/spaces/hpcdocs/pages/540606569/Comparing+IDAS+and+Argon#Mount-Argon-home-directory-in-IDAS.

e) LSS Shared:

• If you have Large Scale Storage (LSS) shares that you want to use with your IDAS session, enter their paths under "LSS Shared" or "LSS Dedicated". Leave these fields blank otherwise. 

  • Please check that the share names are correct.

  • Multiple shares can be separated by a comma. For example: SHL-BUG,SHL-NBS

f) LSS Dedicated:

• If you have Large Scale Storage (LSS) shares that you want to use with your IDAS session, enter their paths under "LSS Shared" or "LSS Dedicated". Leave these fields blank otherwise. 

  • Please check that the share names are correct.

  • Multiple shares can be separated by a comma.

g) IDAS Image:

• Under IDAS Image, choose the programming language that you want to use with IDAS. IDAS currently has multiple versions of R, Python, and Julia available

• If you are not running code that needs CUDA, you do not need to choose a CUDA version.

7. Click the Start button. A new IDAS session will be created. This may take several seconds.

8. After the session has been created, you will see your IDAS home directory. If this is your first time accessing IDAS and you haven't uploaded any files, your home directory will be empty.

9. For more information about using IDAS, please see https://uiowa.atlassian.net/wiki/spaces/hpcdocs/pages/76514946. 

10. Once you finish your job with the IDAS session, please shut down the session, so that resources could be used by other IDAS users. For more information about stopping or restarting your IDAS session, please see https://uiowa.atlassian.net/wiki/spaces/hpcdocs/pages/76514933/Accessing+IDAS+for+Research+Use#Restarting-your-IDAS-session.

Restarting your IDAS session

When to restart your IDAS session?

You might want to restart your IDAS session in one of the following scenarios:

• You want to change the CPU cores, RAM, or GPU available for your IDAS session.

• Your current IDAS session isn’t connected to your Argon home directory or LSS shares, and you want to mount your Argon home directory or LSS shares in your IDAS session.

• You want to change to a different IDAS image, such as:

  • changing from Python to R or Julia

  • changing to a specific software version, such as changing from R 4.0 to R 4.4

  • changing to an IDAS image that has CUDA, such as changing from R 4.4 without CUDA to R 4.4 with CUDA.

• You are working with our team to troubleshoot an issue, and we have recommended that you restart your IDAS session.

• You are finished with your tasks on IDAS. In this case, shutting down your IDAS session will release resources to other users. This is especially helpful if your session was using a GPU, since GPUs on IDAS are limited and available on a first come first served basis.

Steps to restart your IDAS session

1. Save any changes to the scripts, datasets, or files that you want to save. 

2. In your web browser, navigate to https://idas.uiowa.edu/research/hub/home

3. Click the red button Stop My Server.

4. Wait a few seconds for the blue button to change to Start My Server.

5. Click Start My Server to log in to IDAS again if you want to continue using IDAS. Otherwise, if you are done with IDAS, close your browser tab. 

Switching between JupyterLab, Jupyter Notebook, and RStudio

The following interfaces are available in IDAS:

• JupyterLab - available in all IDAS instances

• Jupyter Notebook - available in all IDAS instances

• RStudio - only available in the R and RStudio instances

IDAS users can quickly switch between JupyterLab, Jupyter Notebook, and RStudio by changing the URL in their web browser.

Research users can use the following URLs.

• To access JupyterLab - Please fill in your HawkID:

• To access Jupyter Notebook - Please fill in your HawkID:

• To access RStudio (only available in the R and RStudio instances) - Please fill in your HawkID:

The following table shows the instance types in IDAS, their corresponding default interfaces, and the interfaces that are available.

Contact

If you have any questions or comments, please contact research-computing@uiowa.edu.