Arteris Articles

Asymmetric Multiprocessing with Heterogeneous Architectures: Use the Best Core for the Job

Often, the term “multiprocessing” is associated with tightly-coupled symmetric multiprocessing (SMP) architectures, due in large part to SMP’s prevalence in high-performance computing, x86/x64 servers, and PCs. Unfortunately, SMP’s incremental performance scaling for most applications decreases significantly with increasing numbers of cores. This lack of scalability has prompted many processor companies to avoid purely SMP solutions for their mobile and consumer electronics applications. Instead, they have implemented asymmetric multiprocessing (AMP) architectures to make more efficient use of silicon.

Topics: NoC Systems-on-Chip AMP symmetric multiprocessing HSA foundation on-chip interconnect OS

Putting the “Heterogeneous” in the HSA Foundation

In September’s article, SMP, Asymmetric Multiprocessing, and the HSA Foundation, I explained why symmetric multiprocessing (SMP) architectures have been popular in PC and server markets, and why heterogeneous or asymmetric multiprocessing (AMP) has been the norm in mobility and consumer electronics markets. I also explained the trends that are leading PC and server markets to adopt heterogeneous architectures and introduced the HSA Foundation’s goal of making heterogeneous core chips easy to program.

Topics: System-on-Chip SMP AMP symmetric multiprocessing asymmetric multiprocessing HSA foundation

SMP, Asymmetric Multiprocessing, and the HSA Foundation

When we hear the term “multiprocessing,” we often associate it with “symmetric multiprocessing (SMP).” This is because of SMP’s initial prevalence in the high-performance computing world, and now in x86/x64 servers and PCs. However, it’s been known for years that SMP’s ability to scale performance as the number of cores increases is poor.

Topics: System-on-Chip SMP AMP symmetric multiprocessing asymmetric multiprocessing