Alice Wiki Pages
From ALICE Documentation
ALICE is the computing facility for excellent research of Leiden University. With ALICE you have the world of computing at your fingertips. On this wiki, you can find the information you'll need to get started and become more skilled in using computing to support your research.
For background information, read the About ALICE page.
Please know that this wiki is currently a work in process. We appreciate any questions or comments on the contents so that we can improve the range of information that we supply here.
IMPORTANT NOTE: ALICE is still in a build-up phase. Configurations are still subject to change. You may, therefore, experience unexpected behaviour for the time being.
Use of the ALICE cluster must be acknowledged in any and all publications. For more info see: About ALICE
Maintenance
This section is used to announce upcoming maintenance and provide information before, during and after it. For general information about our maintenance policy, please have a look here: To maintenance policy
Next Maintenance
To be announced
Previous Maintenance days
ALICE node status
Gateway: UP Head node: UP Login nodes: UP GPU nodes: UP CPU nodes: Up High memory nodes: UP Storage: UP Network: UP
Current Issues
- No access to ALICE - SSH gateway failure:
The ssh gateway is currently not working.Access to ALICE is not possible. The cluster itself is not affected and processing continues.- The gateway is working again. Access is possible
- Status: SOLVED
- Last Updated: 02 Jun 2022, 19:45 CET
- Copying data to the shared scratch via sftp:
- There is currently an issue on the sftp gateway which does prevents users from copying data to their shared scratch directory, i.e.,
/home/<username>/data
- A current work-around is to use scp or sftp via the ssh gateway and the login nodes.
- Status: Work in Progress
- Last Updated: 30 Nov 2021, 14:56 CET
- There is currently an issue on the sftp gateway which does prevents users from copying data to their shared scratch directory, i.e.,
See here for other recently solved issues: Solved Issues
Getting Started
If you're new to ALICE, please check out the Getting Started page.
Gaining access
Access to the cluster and file transfer are done via SSH and SCP/SFTP. Select one of the below links for more detail or click on the heading of the paragraph for a full overview.
Access Policy
Access needs to be granted actively (by the creation of an account on the cluster by the ALICE Cluster workgroup. Use of resources is limited by the scheduler. Depending on the availability of queues ('partitions') granted to a user, priority to the system's resources is regulated on the basis of Faculty/institute/PI levels.
Software
Cluster Monitoring Software and Scheduler
ALICE uses Bright Cluster Manager software for overall cluster management and Slurm as the scheduler.
- Monitor cluster status with BCM
- Ganglia Cluster Monitoring
- Compose, submit and manage jobs with Slurm
- Running interactive jobs
Installed software
Globally installed software, modules
Cluster configuration
Find here a hardware description of the ALICE cluster.
Frequently Asked Questions
Find here a list of frequently asked questions for the ALICE cluster.