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Skirting Amdahl's Law: Using SPSD Execution with Optical Interconnects
| Content Provider | CiteSeerX |
|---|---|
| Author | Burger, Doug Goodman, James R. |
| Abstract | Optical interconnects provide new parallel processing opportunities through inexpensive broadcasts high-bandwidth, point-to-point connections. However, the problems of flow control and buffering inhibit current parallel architectures from effectively exploiting the advantages of optical interconnects. We propose using an execution model, called Single Program, Single Data stream (SPSD) to exploit inexpensive optical broadcasts and reduce the serial overheads of parallel programs. We describe one possible implementation of such a system (DataScalar), and discuss how future systems can be designed to better exploit optical interconnects. 1 Introduction From the architect's perspective, optical interconnects provide a new and interesting set of opportunities for designing multiprocessor systems. Intrinsically high bandwidth, potentially low latencies, and the "free space" nature of optical interconnects all provide new opportunities for both evolutionary and revolutionary changes in mul... |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Flow Control Inexpensive Broadcast Future System Free Space Nature Inexpensive Optical Broadcast New Parallel Processing Opportunity High Bandwidth Point-to-point Connection Single Program Using Spsd Execution New Opportunity Single Data Stream Optical Interconnects Interesting Set Inhibit Current Parallel Architecture Low Latency Serial Overhead Execution Model Revolutionary Change Possible Implementation Multiprocessor System Parallel Program |
| Content Type | Text |
