K. Ghosh, and A.J. Christie. "Communication across fault-containment firewalls on the SGI Origin." In Proceedings of the 4th International Symposium on High-Performance Computer Architecture, pp. 277-287, February 1998.  Home/Search   Document Details and Download   Summary   Related Articles

.... To restrict the impact of speculative exclusive fetches, we use a firewall mechanism that was originally proposed for the FLASH multiprocessor during the design of the Hive operating system[Chapin95] a very similar mechanism has been implemented in the SGI Origin 2000 system [Laudon97a][Ghosh98]. While the firewall was introduced in Hive mainly for defending against system software errors, its sole purpose in the context of our work is to limit the extent of speculative exclusive fetches. As shown in Figure3.3, the firewall associates with each 4KB machine memory page PFN k an access ....

....processor, requires a spare processor to resume system operation, and does not handle interconnect failures. A partitioning approach for SGI Origin 2000 multiprocessors that uses a firewall mechanism to allow for a very constrained sharing of memory pages between partitions has been proposed in [Ghosh98]. This approach only allows sharing of user pages, and does not contain all the necessary support for recovering from hardware failures. The HAL multiprocessor provides an efficient hardware implementation of an end to end reliable protocol for coherence traffic [Weber97] Reliable delivery is ....

K. Ghosh, and A.J. Christie. "Communication across fault-containment firewalls on the SGI Origin." In Proceedings of the 4th International Symposium on High-Performance Computer Architecture, pp. 277-287, February 1998.

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