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We highlight how the vertical cavity surface emitting laser, or VCSEL, empowers interprocessor communication for grids of spaceborn computers. To put a face on how VCSELs benefit spaceflight multi-processors, we quantify the scalability of point-to-point optical channels, implemented to achieve fault tolerance and connectivity tuned from sparse to dense. VCSELs can free designers from the tyranny...
We describe a novel generation of multi-processor architectures, with fault tolerance and connectivity tuned from sparse to dense. Multivariate feasible regions quantify how such architectures minimize channel cost and latency, and maximize throughput and fault tolerance. Key to designs which optimally exploit these feasible regions: a software-automated catalog of results from the mathematics of...
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