What is simultaneous multithreading?
Q: What is simultaneous multithreading?
A: Simultaneous multithreading (SMT) is a technique for improving the overall efficiency of superscalar CPUs with Hardware multithreading. It permits multiple independent threads of execution to better utilize the resources provided by modern computer architectures.
Q: How does SMT compare to multitasking?
A: Multithreading is similar in concept to multitasking but it is implemented at the thread level of execution in modern superscalar processors, whereas multitasking is implemented at the process level.
Q: What are two ways to increase on-chip parallelism?
A: The two ways to increase on-chip parallelism are Superscalar technique and Chip-level multithreading (CMT).
Q: What are some different types of chip-level multithreading?
A: Different types of chip-level multithreading include Interleaved Multithreading (IMT), Fine-Grain Multithreading, Coarse Grain Multithreadin, and Simultaneous Multithreadin (SMT).
Q: How can you distinguish between IMT/SMT/CMP?
A: The key factor for distinguishing between IMT/SMT/CMP is looking at how many instructions the processor can issue in one cycle and how many threads from which the instructions come.
Q: What type of processor must be used for SMT?
A: For SMT, a superscalar processor must be used.
Q: What type of processor does Chip Level MultiProcessing use?
A: Chip Level MultiProcessing uses multi-core processors that integrate two or more superscalar processors into one chip, each executing threads independently.
