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One important difference between Argon and previous systems is that Argon has Hyperthreaded processor cores turned on. Hyperthreaded cores can be thought of as splitting a single processor into two virtual cores, much as a Linux process can be split into threads. That oversimplifies it but if your application is multithreaded then hyperthreaded cores can potentially run the application more efficiently. For non-threaded applications you can think of any pair of hyperthreaded cores to be roughly equivalent to two cores at half the speed. This can help ensure that the physical processor is kept busy for processes that do not always use the full capacity of a core. The reasons for enabling HT this for Argon are to try to increase system efficiency on the workloads that we have observed. There are some thing to keep in mind as you are developing your workflows.
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