Supercomputer Puhti is now available for researchers

CSC's new supercomputer Puhti is now available for researchers, as the first part of the CSC's new computing and data management environment. This Atos BullSequana X400 system supports a wide range of workloads, including simulations, high-throughput workflows, data analysis and deep learning.

Puhti consists of 682 CPU nodes with 192 GB – 1.5 TB of memory. Each node has two latest generation Intel Xeon Gold 6230 processors, code name Cascade Lake, with 20 cores each running at 2,1 GHz. Puhti offers a theoretical peak performance of 1,8 Petaflops and 4,8 PB of storage capacity.

Puhti-AI Artificial Intelligence Partition has 80 nodes with a total peak performance of 2.7 Petaflops. Each node has four Nvidia Volta V100 GPUs and two Intel Xeon Gold 6230 -processors. Puhti-AI has 384 GB of main memory and 3.2 TB of fast local storage.

Taito and Sisu users are encouraged to prepare to move their workloads to Puhti, since Taito will be decommissioned by the end of the year. Puhti already includes a range of pre-installed software, and the list is being expanded, but some Taito software may be missing at the moment. When Allas storage service is opened in September, support and documentation for migrating large amounts of data from Taito will be in place.

Puhti is the first of three new systems coming to CSC.

Allas, the new common data management solution, will tentatively be in use in September. Allas is based on CEPH object storage technology and it provides 12 PB of storage capacity. Allas will be the backbone for providing a rich environment for storing, sharing and analyzing data across the CSC compute infrastructure.

Mahti, CSC's next supercomputer, is a Atos BullSequana XH2000 system, and it will be taken in use in early 2020. This system offers a significant increase in CSC's computing capacity, with 1400 nodes each containing two AMD Rome 64-core processors.

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