This article discusses the use of simultaneous multi-threading (hyper-threading) in HPC, with a particular emphasis on financial risk systems and the COREx benchmark. It looks into the SMT status of cloud virtual machines, the ability to enable or disable and the cost implications of doing so.

Evaluating hardware performance such that it correlates well to your own use case is always difficult.Financial risk system specific benchmarks can be even more of a challenge due the proprietary and often secret nature of the code involved. This article looks at developing such a benchmark.