Puhti Service Description - Services for Research

Public Detailed service description

Puhti is an Atos Bullsequana X400 supercomputing platform with 682 CPU nodes and 1.8 petaflops theoretical peak performance. Each CPU node contains two Intel Xeon Gold 6230 processors (Cascade Lake, 20 cores, 2.1 GHz). Memory configurations vary: 532 nodes with 192 GB, 132 nodes with 384 GB, 12 nodes with 768 GB, and 6 nodes with 1.5 TB. Many nodes include local NVMe scratch storage.

The system includes 80 GPU nodes with 2.7 petaflops peak performance. Each GPU node features two Intel Xeon processors (Cascade Lake, 20 cores, 2.1 GHz), four NVIDIA Volta V100 GPUs (32 GB each), 384 GB main memory, and 3.6 TB local NVMe storage.

Network connectivity uses HDR InfiniBand with 100 Gbps HDR100 links. Storage consists of a 4.8 PiB Lustre parallel file system.

Jobs are submitted via batch queueing system. There are partitions for long-running jobs as well as normal partition that allow up to three day jobs. Small jobs, as well as medium sized jobs can be run on Puhti Access is provided through SSH or web interface using Open OnDemand.

Puhti supports user-developed codes (Fortran, C/C++, Python), Linux-compatible applications via compilation or Singularity containers, and CSC’s scientific software collection. Parallelization options include MPI, OpenMP, CUDA, and OpenACC. Mathematical subroutine libraries are available.

Certifications

The Information Security Management System of CSC – IT Center of Science Oy is ISO/IEC 27001:2022 certified, with the Puhti service being within scope of the certificate

User content including personal data in the Service

User must evaluate whether this Service is suitable for their purpose. Please pay attention to special categories of personal data.

When CSC processes personal data in CSC’s services on behalf of the controller, we always require a personal data processing agreement. The user creates the description of processing activities in MyCSC customer portal. Data Processing Agreement.

The Service do not assert ownership or any intellectual property rights to users or customers organisations’ content in the services.

Client’s responsibilities

User must follow all the Terms of Use that applies using the Service

Users are also responsible for their data and computing and should always strive to use the provided resources efficiently. The user is responsible to minimize the chance of overloading any component of the service by excessive amount or frequency of operations. CSC has no backups and backups are the responsibility of users. Users are responsible for adhering to the compute services usage policies.

Service producer’s responsibilities

The service producer ensures that the service is available to customers as described in the service description.

The service producer is responsible for producing and developing the Service.

Service producer

CSC – IT Center for Science Ltd.

Service provider