Most compute nodes have Intel processors, while others have AMD processes. Each compute node has a local drive, which is either a hard disk drive (HDD), a solid state drive (SSD), or even a Non-Volatile Memory Express (NVMe) drive. For additional details on the compute nodes, see the Details section below.
The compute nodes can only be utilized by submitting jobs via the scheduler - it is not possible to explicitly log in to compute nodes.
The cluster can be accessed via SSH to one of two login nodes:
For transferring large data files, it is recommended to use the dedicate data transfer node:
which has a 10 Gbps connection - providing a file transfer speed of up to (theoretical) 1.25 GB/s = 4.5 TB/h. As the login nodes, the transfer node can be accessed via SSH.
Comment: You can also transfer data via the login nodes, but since those only have 1 Gbps connections, you will see much lower transfer rates.
The cluster has development nodes for the purpose of validating scripts, prototyping pipelines, compiling software, and more. Development nodes can be accessed from the login nodes.
|Node||# Physical Cores||CPU||RAM||Local
|qb3-dev1||8||2.66 GHz||16 GiB||0.125 TiB|
The development nodes have Intel Xeon CPU E5430 @ 2.66 GHz processors and local solid state drives (SSDs).
The Wynton cluster provides two types of scratch storage:
/scratch/ - storage unique to each compute node (can only be accessed from the specific compute node).
/wynton/scratch/ - approx. 200 TiB storage (BeeGFS) accessible from everywhere.
There are no per-user quotas in these scratch spaces. Files not added or modified during the last two weeks will be automatically deleted on a nightly basis. Note, files with old timestamps that were “added” to the scratch place during this period will not be deleted, which covers the use case where files with old timestamps are extracted from tar.gz file. (Details:
tmpwatch --ctime --dirmtime --all --force is used for the cleanup.)
Each user may use up to 200 GiB disk space in the home directory. Research groups can add additional storage space by either mounting their existing storage or purchase new. Important, please note that the Wynton HPC storage is not backed up. Users and labs are responsible to back up their own data outside of Wynton.
The compute nodes are connected using 10 Gbps Ethernet. The cluster connects to NSF’s Pacific Research Platform at a speed of 100 Gbps.