As HPC applications move from single GPU to multi-GPU, there are growing challenges around how to accurately model and predict the performance of future GPU designs and systems. This talk will provide a retrospective on the development of a simulation workflow used within NVIDIA today and the fidelity versus simulation-time trade-offs needed to enable system level simulation of HPC and data center workloads.

Lithium niobate (LN) is an “old” material with many applications in optical and microwave technologies, owing to its unique properties that include large second order nonlinear susceptibility, large piezoelectric response, and wide optical transparency window. Conventional LN components, including modulators and periodically polled frequency converters, have been the workhorse of the optoelectronic industry. They are reaching their limits, however, as they rely on weakly guiding ion-diffusion defined optical waveguides in bulk LN crystal.