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Altair

Simulation, HPC workload management and data analytics software

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About Altair

Altair provides simulation, high-performance computing and data analytics software used by engineering and IT teams. Its HPC portfolio centers on workload schedulers and cloud-bursting tools that manage CPU and GPU clusters, and it also offers AI and data science tooling. Siemens completed its acquisition of Altair in 2025.

Common use cases

  • Scheduling GPU clusters for AI training
  • Engineering simulation on shared HPC
  • Hybrid cloud HPC capacity bursting
  • Predictive analytics for manufacturing

Products and services

PBS Professional

Workload manager and job scheduler for HPC clusters.

Altair HPCWorks

Suite of HPC scheduling, cloud and container orchestration tools.

Altair RapidMiner

Data analytics and AI platform for model building.

Altair HyperWorks

Computer-aided engineering simulation suite.

Key features

  • HPC job scheduling
  • GPU cluster management
  • Cloud bursting
  • Simulation and optimization
  • Data analytics and AI
  • License and usage analytics

Integrations

  • AWS
  • Microsoft Azure
  • Google Cloud
  • NVIDIA
  • Kubernetes
  • Slurm

Altair alternatives

  • IBM Spectrum LSF
  • Slurm (SchedMD)
  • Ansys
  • Dassault Systemes

FAQs

Is Altair hardware?

No. It sells software that schedules and manages workloads on customers' own or cloud compute hardware.

Who owns Altair?

Siemens completed its acquisition of Altair in 2025; Altair operates within Siemens Digital Industries Software.

How is it deployed?

On-premises, in the cloud, or in hybrid HPC setups.

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