| 摘要 |
A multiprocessor system includes a number of subprocessor systems, each substantially identically constructed, and each comprising a central processing unit (CPU), and at least one I/O device, interconnected by routing apparatus that also interconnects the sub-processor systems. A CPU of any one of the sub-processor systems may communicate, through the routing elements, with any I/O device of the system, or with any CPU of the system. Communications between I/O devices and CPUs is by packetized messages. Interrupts from I/O devices are communicated from the I/O devices to the CPUs (or from one CPU to another CPU) as message packets. CPUs and I/O devices may write to, or read from, memory of a CPU of the system. Memory protection is provided by an access validation method maintained by each CPU in which CPUs and/or I/O devices are provided with a validation to read/write memory of that CPU, without which memory access is denied.
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| 申请人 |
TANDEM COMPUTERS INCORPORATED |
发明人 |
HORST, ROBERT W.;BAKER, WILLIAM EDWARD;BANTON, RANDALL G.;BROWN, JOHN MICHAEL;BRUCKERT, WILLIAM F.;BUNTON, WILLIAM PATTERSON;CAMPBELL, GARY F.;CODDINGTON, JOHN DEANE;CUTTS, RICHARD W., JR.;DREXLER, BARRY LEE;ELROD, HARRY FRANK;FOWLER, DANIEL L.;GARCIA, DAVID J.;HINTIKKA, PAUL N.;ISWANDHI, GEOFFREY I.;JEWETT, DOUGLAS EUGENE;JONES, CURTIS WILLARD JR.;KLECKA, JAMES STEVENS;KRAUSE, JOHN C.;LOW, STEPHEN G.;MEREDITH, SUSAN STONE;MEYERS, STEVEN C.;SONNIER, DAVID P.;WATSON, WILLIAM JOEL;WHITESIDE, PATRICIA L.;WILLIAMS, FRANK A.;ZALZALA, LINDA ELLEN |
