Invention Grant
- Patent Title: Exposed-pipeline processing element with rollback
- Patent Title (中): 具有回滚的暴露流水线处理元素
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Application No.: US13673221Application Date: 2012-11-09
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Publication No.: US08972782B2Publication Date: 2015-03-03
- Inventor: Bruce M. Fleischer , Thomas W. Fox , Hans M. Jacobson , Ravi Nair , Daniel A. Prener
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Main IPC: G06F11/14
- IPC: G06F11/14

Abstract:
An aspect includes providing rollback support in an exposed-pipeline processing element. A method for providing rollback support in an exposed-pipeline processing element includes detecting, by rollback support logic, an error associated with execution of an instruction in the exposed-pipeline processing element. The rollback support logic determines whether the exposed-pipeline processing element supports replay of the instruction for a predetermined number of cycles. Based on determining that the exposed-pipeline processing element supports replay of the instruction, a rollback action is performed in the exposed-pipeline processing element to attempt recovery from the error.
Public/Granted literature
- US20140136894A1 EXPOSED-PIPELINE PROCESSING ELEMENT WITH ROLLBACK Public/Granted day:2014-05-15
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