CS Colloquium

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The host architecture has evolved rapidly over the past decade: modern hosts have multiple heterogeneous compute devices, multiple memory devices potentially distributed across multiple cache coherence domains, and multiple network devices, all interconnected by an intra-host network. Such a host architecture alters the many fundamental assumptions that once guided the design and optimization of modern operating systems. As a result, applications running atop modern hosts suffer from suboptimal properties and performance, while host resources remain extremely underutilized.

In this talk, I’ll outline my research vision: next-generation operating and distributed systems should be designed with the perspective of each individual host being a distributed system itself! Using examples from my thesis research, I will discuss the many ways in which “host as a distributed system” perspective compels us to revisit classical problems in operating systems, as well as enables green field explorations across the systems stack.