Service Desk
Mahti
Supercomputer
Mahti is a supercomputer geared towards medium to large scale computations and simulations
Service description
Mahti is a supercomputer designed for large parallel jobs that require high floating point CPU performance and a capable interconnect. Mahti is also suitable for small to medium scale computational tasks that are able to use full nodes efficiently. AI workloads are supported on its GPU partition. Mahti's compute power is provided by approximately 180 000 CPU cores and 96 Nvidia Ampere GPUs. Mahti resources are provided as full CPU nodes to maximize performance. For tasks requiring fewer CPUs or if your scientific software is not installed on Mahti, consider using Puhti. If you require larger amount of GPUs, Puhti or Lumi may be better options. In addition to command line access, Mahti can also be accessed for interactive use via its web interface.
Technical information
Using the HPC environments requires elementary Linux skills, and a basic understanding of HPC environments. We recommend you are familiar with basics of Linux command line usage before starting to use Mahti, and have reviewed the material in Using CSC HPC Environment Efficiently online course.
Protection level
Restricted access
You can decide who can access or download the data, and manage data sharing.
Restricted access
You can decide who can access or download the data, and manage data sharing.
Read more about protection levels
How to obtain the service
To use the service the you must have a CSC user account and a CSC Project, which can be applied for research or education purposes via MyCSC. The Service access also needs to be activated in MyCSC. Commercial users are adviced to contact Service desk.
Service is free of charge for use cases defined in the CSC free of charge policy. For other users, please contact CSC's Service Desk. Mahti users need billing units (BU) to use services. The accumulation and the cost of BUs can be explored in the Billing unit calculator.