We present a new arrangement of directory bits called the segment directory to improve directory storage efficiency: a segment directory can point to several sharing processors with almost the same number of bits as the pointer which can point to only one. Many directory overflows can be eliminated by using the segment directory element in place of the pointer in the limited directory schemes. ...

HandyFS provides a simple and efficient interface to enable user ad-hoc merge many remote directory trees (source directory) on distributed machines into one single directory hierarchy (target directory). All operations on the target directory are mapped to corresponding individual source directory. Source directories can be add/remove dynamically at runtime and these changes are reflected to t...

There are two important hurdles that restrict the scalability of directory-based shared-memory multiprocessors: the directory memory overhead and the long L2 miss latencies due to the indirection introduced by the accesses to directory information, usually stored in main memory. This work presents a lightweight directory architecture aimed at facing these two important problems. Our proposal ta...

â â â  research in arabic language & literature â â â â â â â  biannual journal â  of the f oreign languages faculty â â of the university of isfahan â â â â â  issue 7, autumn & winter 2012-2013 â â â  issn: 2008-6466 electronic issn: 2322-4649 â  â  â  â  this journal is indexed in below sites: â  â  bjm electronic database http://uijs.ui.ac.ir/rall â  doaj: directory of open access journals ...

The trend for multicore CPUs is towards increasing core count. One of the key limiters to scaling will be the on-chip directory cache. Our work investigates moving portions of the directory away from the cores, perhaps to off-chip DRAM, where ample capacity exists. While suchmulti-level directory caches exhibit increased latency, several aspects of directory accesses will shield CPU performance...