On the Feasibility of Optical Circuit Switching for High Performance Computing Systems

Symbolic expression analysis for compiled communication

“…We modeled the circuit switches as optical microelectro-mechanical-system (MEMS)-based switches whose connection setup overhead is 3ms [1,15] and the bandwidth of each circuit is set to 4G bps. Note that we include one slow packet switching network with link bandwidth of 400M bps in the simulated multiprocessor system in addition to the configurable number of circuit switching networks.…”

“…This network was selected to maintain a high performance with a reduced cost for parallel machines with optical links traversing several racks [1] and we compare the performance of this network to comparable fully-buffered crossbar switches in [10,11]. We selected message delay rather than total execution time as our presentation metric, as the benchmarks far underload the networks, even with the network capacities described here, which trail state of the art networks, which can achieve 10-20G bps.…”

“…Circuit switching networks have the potential of achieving higher efficiency than packet and wormhole networks with relatively lower cost. As such, enabling optical circuit switching in the high performance computing domain has drawn the interest of several researchers [1,9,11].…”

Modeling an Optical Network Operating with Hybrid-Switching Paradigms

“…Given that a resource is assigned to a connection (or lightpath), it is only released after all the data are sent to the destination node [28].…”

A Network Configuration Algorithm Based on Optimization of Kirchhoff Index

“…These applications are termed as stream computing applications, in that they consist of processing continuous, high-volume data-streams in real time. Such applications are particularly suited for utilizing a configurable parallel architecture, like the one enabled by a configurable optical switch ( [11], [12], [13], [14]), because these applications have long duration flows (in seconds) that can easily amortize the cost of configuring the switch (usually in a few 10s of millisecs).…”