Bridges User Guide


Virtual Machines 

A Virtual Machine (VM) is a portion of a physical machine that is partitioned off through software so that it acts as an independent physical machine. 

You should indicate that you want a VM when you apply for time on Bridges.  

When you have an active Bridges' grant,  use the VM Request form to request a VM.   You will be contacted in one business day about your request.


Why use a VM?

A VM will look to you as if you are logging into and using your laptop, but you will have access to the computing power, memory capacity  and file spaces of Bridges.

Common uses of VMs include hosting database and web servers.  These servers can be restricted just to you or you can open them up to outside user communities to share your work. You can also connect your database and web servers and other  processing components in a complex workflow.

VMs provide several other benefits. Since the computing power behind the VM is a supercomputer, sufficient resources are available to support multiple users.  Since each VM acts like an independent machine, user security is heightened. No outside users can violate the security of your independent VM. However, you can allow other users to access your VM if you choose. 

A VM can be customized to meet your requirements.  PSC will set up the VM and give you access to your database and web server at a level that matches your requirements.


To discuss whether a VM would be appropriate for your research project send email to This email address is being protected from spambots. You need JavaScript enabled to view it..


Grant expiration

You have a 3-month grace period to move your data from your Bridges VM after your grant expires. After that, the VM will be removed.  Please notify This email address is being protected from spambots. You need JavaScript enabled to view it. if you need help moving your data during the grace period. 




New on Bridges

GPUs to be allocated separately
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Upgraded scratch file system installed
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Omni-Path User Group

The Intel Omni-Path Architecture User Group is open to all interested users of Intel's Omni-Path technology.

More information on OPUG