The NAS Paragon (grace) is a distributed-memory multiprocessor. The hardware configuration is as follows:
Performance: Under the current version of the operating system the latency (startup time) for point-to-point messages is about 120 microseconds and the bandwidth is about 35 MB/sec. These are roughly independent of the source and destination nodes. Global operations are implemented using point-to-point communication and have correspondingly high latencies which vary with partition size.
The capability of the hardware is about 5 times better than these numbers and we expect to see them improve with subsequent operating system releases and possible hardware upgrades.