Fault containment system for multiprocessor with shared memory.,申请号EP19920308409-传众专利搜索

Fault containment system for multiprocessor with shared memory.

申请公布号：EP0534665(A2)

申请号：EP19920308409

申请日期：1992.09.16

申请公布日期：1993.03.31

申请人：

KENDALL SQUARE RESEARCH CORPORATION

发明人：FRANK, STEVEN J.;MANN, WILLIAM F.

分类号：G06F12/16;G06F11/00;G06F15/16;G06F15/177

主分类号：G06F12/16

摘要：<p>A multiprocessor system 10 has a plurality of processing cells 18A - 18Q, each including a processor and memory interconnected via a network. The memories respond to requests by the processors for accessing data and, absent fault, transmitting it in response packets to at least to the requesting processors. A fault containment element responds to at least certain faults during access or transmission of a datum for including within the respective response packet a fault signal that prevents the requestor from accessing the datum. If a fault is detected in a datum not previously detected as faulty, a marking element can include a "marked fault" signal in the response packet. Whereas, it can include an "unmarked fault" signal when it detects a fault associated with a requested datum, but not specifically isolated to that datum. When a request is made for a datum which had previously been detected as faulty, the marking element can include in the response packet a "descriptor fault" signal. This facilitates identification of a particular source of an error and prevents that error from propagating to other processing cells. <IMAGE></p>