Title
Efficient Modeling of Itanium Architecture during Instruction Scheduling using Extended Finite State Automata
Abstract
Effective and efficient modeling and management of hardware resources have always been critical toward generating highly efficient code in optimizing compilers. The instruction templates and dispersal rules of the Itanium® architecture add new complexity in managing resource constraints to instruction scheduler. We extended a finite state automaton (FSA) approach to efficiently manage all key resource constraints of an Itanium® architecture on-the-fly during instruction scheduling. We have fully integrated the FSA-based resource management into the instruction scheduler in the Open Research Compiler for the Itanium® architecture. Our integrated approach shows up to 12% speedup on some SPECint2000 benchmarks and 4.5% speedup on average for all SPECint2000 benchmarks on an Itanium®-based system when compares to an instruction scheduler with decoupled resource management. In the meantime, the instruction scheduling time of our approach is reduced by 4% on average.
Year
Venue
Keywords
2004
J. Instruction-Level Parallelism
finite state automata,optimizing compiler,finite state automaton,instruction scheduling,resource manager
Field
DocType
Volume
Resource management,Architecture,Computer architecture,Explicitly parallel instruction computing,Instruction scheduling,Computer science,Parallel computing,Itanium,Real-time computing,Compiler,Finite-state machine,Speedup
Journal
6
Citations 
PageRank 
References 
0
0.34
12
Authors
6
Name
Order
Citations
PageRank
Dong-yuan Chen110710.04
Lixia Liu220.79
Roy Dz-ching Ju332621.37
Feng Chen421846.85
Shuxin Yang5162.59
Chengyong Wu651526.67