Simultaneous Multithreading/Hyper-Threading

Some instance types support simultaneous multithreading/Hyper-Threading technology.

Simultaneous multithreading is technology that allows a single physical processor core to behave like two logical processors, essentially allowing two independent threads to run in parallel. This enables more data to be processed in less time, improving performance and efficiency. Simultaneous multithreading is available on virtual machines with AMD processors.

Hyper-Threading is similar to simultaneous multithreading. This is Intel's brand name for the technology and is therefore available on virtual machines with Intel processors.

When creating a virtual desktop, Ansys recommends that you keep simultaneous multithreading/Hyper-Threading disabled.

When creating an autoscaling cluster, you can choose whether you want to enable simultaneous multithreading for each queue that you define. For most autoscaling cluster workflows, Ansys recommends that you keep simultaneous multithreading disabled.

When creating an HPC cluster, multithreading/Hyper-Threading is automatically disabled and cannot be enabled.