Invention Grant
- Patent Title: Synchronous clock stop in a multi nodal computer system
- Patent Title (中): 多节点计算机系统中的同步时钟停止
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Application No.: US13170466Application Date: 2011-06-28
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Publication No.: US08868960B2Publication Date: 2014-10-21
- Inventor: Tobias Bergmann , Ralf Ludewig , Tobias Webel , Ulrich Weiss
- Applicant: Tobias Bergmann , Ralf Ludewig , Tobias Webel , Ulrich Weiss
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Heslin Rothenberg Farley & Mesiti P.C.
- Agent Steven Chiu, Esq.; Kevin P. Radigan, Esq.
- Priority: EP10168216 20100702
- Main IPC: G06F1/04
- IPC: G06F1/04 ; G06F1/12 ; G06F15/16 ; G06F1/32

Abstract:
A computer system is provided which includes a plurality of nodes, which include chips of different types. In each node, one of the chips is configured as a master chip, which is connected to one or more slave chips via two or more multi-drop nets (e.g., checkstop, clockrun). The master chip and the slave chips are connected to a reference clock, and event triggering information is transmitted via the multi-drop nets (checkstop, clockrun) to the slave chips. Event trigger commands are submitted by the master chip when it receives a request, and internal offset counters are used to adjust both the receiving cycle and the cycle when the command is propagated to the units on the chips. In operation, the offset counters are synchronized by a reference clock.
Public/Granted literature
- US20120005516A1 SYNCHRONOUS CLOCK STOP IN A MULTI NODAL COMPUTER SYSTEM Public/Granted day:2012-01-05
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