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Read announcements for NREL’s high-performance computing (HPC) system users. 

Data Transfer Queue

March 08, 2018

A new queue “data-transfer” is available for peregrine users to transfer data between lustre file systems (projects, scratch) and MSS. Continue reading

Mass Storage Improvements

January 11, 2018

We have increased the file (inode) quota from the default of 100k to 1 million for /mss/users and increased the /mss/projects default of 100k to 2 million. Continue reading


January 11, 2018

We now have a notification method that users can configure and maintain if you want notifications for files that will be removed within 7 days. Continue reading

Policy for Use of Space in /projects on Peregrine

January 11, 2018

NREL HPC allocations include storage space in the /projects filesystem.  However, /projects is a shared resource and project leads should periodically monitor usage by running alloc_tracker. Continue reading

New Software Version

January 11, 2018

Anaconda 5.1 now optionally includes Microsoft Visual Studio Code, an open, cross-platform VS-based IDE/code editor. Continue reading

Please Move Inactive Files Off the /projects File System

January 11, 2018

The /projects file system is a shared resource. Projects with node hour allocations on Peregrine request allocations of space on /projects. Because our data retention policy allows expired projects three months to move their data off Peregrine, each year when new projects start on November 1, we have projects from the previous year still occupying space. This year this has created a space crunch — the file system is now about 90% full and we need your help to free up space. If the file system fills up, many users will be impacted.

Continue reading

Direct Access to Peregrine for External Users

January 11, 2018

External users can now SSH directly to a Peregrine login node with ssh. Continue reading

Peregrine Queue Changes

November 28, 2017

Based on the Annual User survey feedback to increase the throughput of larger jobs on Peregrine, after careful consideration we decided that the best path is to disable the large queue and move the nodes from the "large" queue to the "batch-h" queue and boost the node weight, which effectively increases the priority of jobs that request a large number of nodes. The large queue was disabled during the October System time on Peregrine. Continue reading VPN Change

November 15, 2017

Attention VPN users: To comply with DOE cyber requirements, the VPN service will change the way it handles routing. New connections to the hpcvpn service will not have split-tunneling enabled. Split tunneling bypasses gateway level security within the NREL infrastructure and could lead to compromised HPC systems so it may not be used. Although these changes will not affect how you use the service, access to your local resources may not be available when connected to the VPN service. If you use the NREL Pulse VPN, split-tunneling is already disabled. Continue reading