Frequently Asked Questions


General Usage


How do I gain access to Rivanna?

Please read and follow these instructions.


How do I log on to Rivanna?

Use an SSH client from a campus-connected machine and connect to You can also use FastX.  If you are off Grounds you must use the UVA Anywhere VPN.


How do I reset my current password / obtain a new password?

Access to the HPC cluster requires a valid Eservices password. Your Netbadge password is not necessarily the same thing, so if you are unable to log in, you should first try resetting your Eservices password here. If the problem persists, contact ITS (which manages all Eservices accounts) through the group's online help desk.



How do I check my allocation status on Rivanna?

Run allocations:


In all cases you will need to use an account with remaining service units in order to submit jobs.


How do I add or remove people from my allocations?

You must use the MyGroups interface to do this, and you must have administrative access to the group.



How do I use research software that's already installed?

Please read this.


Does ARCS install research software?

ARCS will install software onto Rivanna if it is of wide applicability to the user community. Software used by one group should be installed by the group members, ideally onto leased storage for the group.  We can provide assistance for individual installations.

For help installing research software on your PC, please contact Research Software Support at


Is there any other way to install research software that I need?

Some groups and departments have installed a bundle of software they need into shared space.  Please see your departmental IT support personnel if your department has its own bundle.

Job Management


How do I submit jobs?

You submit jobs by writing a SLURM script and submitting it with the  sbatch command; please read this.


How do I submit an interactive job?

You may use the locally-written ijob command to submit an interactive job. The minimum required options are -A and -c  for allocation and number of cores. Run ijob alone with no options for a list of all options.

If you wish to forward X11 in order to use a graphical user interface or to run other graphics programs, on the Rivanna frontend node run ssh -Y localhost before you run ijob.

For more information see the documentation.


What queues can I use?

After logging in, run the command queues to see what queues to which you have access, for example:


Note: you may not see the same as the above when you run the command.


How do I choose which queue to use?

Run the command queues,  based on the Time-Limit, Maximum Cores/Job, SU Rate, and Usable Accounts values, please pick a queue that best suits the needs of your research. 


How do I check the status of my jobs?

Run jobq:


If reporting a problem to us about a particular job, please let us know the JobID for the job that you are having a problem with. You can also run jobq -l to relate particular jobs to specific submission scripts:



Why is my job not starting?

Several things can cause jobs to wait in the queue. If you request a resource combination we do not have, such as 28 cores on a parallel node, the queueing system will not recognize that this condition will not be met and will leave the job pending (PD). You may also have run a large number of jobs in the recent past and the "fair share" algorithm is allowing other users higher priority. Finally, the queue you requested may simply be very busy.


Why do my jobs get killed?

Usually this is because you inadvertently submitted the job to run in a location that the compute nodes can't access or is temporarily unavailable.  If your jobs exit immediately this is usually why.  Other common reasons include using too much memory, too many cores, or running past a job's timelimit. 

You can run sacct:

[aam2y@udc-ba36-27:/root] sacct
       JobID    JobName  Partition    Account  AllocCPUS      State ExitCode 
------------ ---------- ---------- ---------- ---------- ---------- -------- 
159637       ompi_char+   parallel  hpc_admin         80  COMPLETED      0:0 
159637.batch      batch             hpc_admin          1  COMPLETED      0:0 
159637.0          orted             hpc_admin          3  COMPLETED      0:0 
159638       ompi_char+   parallel  hpc_admin        400    TIMEOUT      0:1 
159638.batch      batch             hpc_admin          1  CANCELLED     0:15 
159638.0          orted             hpc_admin         19  CANCELLED  255:126

If it's still not clear why your job was killed, please contact us and send us the output from sacct.


Why can't I submit jobs anymore?

You must not be overallocated with your /scratch usage and you must have some remaining service units in order to submit jobs. Please check the output of sfsq and/or allocations to determine what the problem is.


How do I check the efficiency of my completed jobs?

Run jobe:


If your rating is low, please contact us: we can help.

Storage Management


How do I obtain leased storage?

You can lease Enterprise or Value storage from here.  You should receive a path to which the share can be mounted to Rivanna as well as a path for mounting to Windows or Mac. Please notify us that you wish to have the storage mounted, or if you encounter any problems accessing your leased storage, through


How do I check my /scratch usage on Rivanna?

Run sfsq:


If you have used up too much space, created too many files, or have "old" files you may be regarded as "overallocated". Please note that if you are overallocated, you won't be able to submit any new jobs until you clean up your /scratch folder.


How do I check how much leased or home storage I am using on Rivanna?

To check your home space, run quota -s:

bash-4.1$ quota -s
Disk quotas for user jm9yq (uid 650224): 
     Filesystem  blocks   quota   limit   grace   files   quota   limit   grace
                   395M       0   4096M               0       0       0 

To check your leased space, change directory in your your leased space and then run df -h /nv/volX, where volX is your leased storage:

bash-4.1$ cd /nv/vol89
bash-4.1$ df -h /nv/vol89
Filesystem            Size  Used Avail Use% Mounted on
                      247G  225G   22G  92% /nv/vol89


What if my question doesn't appear here?

Take a look at our User Guide or the Research Computing Knowledge base. If your answer isn't there, create a new post at our Knowledge base to have us or other users respond to it or, use our contact form to ask your question to us directly.