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Title: Exploiting Inactive Rename Slots for Detecting Soft Errors
Authors: Kayaalp, Mehmet
Ergin, Oğuz
Ünsal, Osman S.
Valero, Mateo
Keywords: Microprocessors
soft errors
register renaming
dependency checking logic
Issue Date: 2010
Publisher: Springer-Verlag Berlin
Source: 23rd International Conference on Architecture of Computing Systems (ARCS 2010) -- FEB 22-25, 2010 -- Leibniz Univ Hannover, Hannover, GERMANY
Series/Report no.: Lecture Notes in Computer Science
Abstract: Register renaming is a widely used technique to remove false data dependencies in superscalar datapaths. Rename logic consists of a table that holds a physical register mapping for each architectural register and a logic for checking intra-group dependencies. This logic checking consists of a number of comparators that compares the values of destination and source registers. Previous research has shown that the full capacity of the dependency checking logic is not used at each cycle. In this paper we propose some techniques that make use of the unused capacity of the dependency checking logic of the rename stage in order to detect soft errors that occur on the register tags while the instructions are passing through the frontend of the processor.
ISBN: 978-3-642-11949-1
ISSN: 0302-9743
Appears in Collections:Bilgisayar Mühendisliği Bölümü / Department of Computer Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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