This paper is concerned with optimizing code execution in virtual machine environments. Code motion is one of the many optimization techniques. We considered a special case of optimization – a loop containing expressions that can be effectively evaluated once. A solution for this case is discussed and two algorithms are proposed. Experimental results for Java VM, MS .NET and Mono are shown here...

Abstract Supply Chain Management (SCM) in semiconductor manufacturing differs from many other SCM applications in that it has to simultaneously consider both long and short time scale stochasticity and nonlinearity. This paper presents a two-level hierarchical structure for SCM motivated by these considerations. Linear Programming (LP)-based Strategic Planning and Inventory Planning modules for...

The electric dipole moment of the muon (dμ) is evaluated in a two Higgs doublet model with a softly broken discrete symmetry. The leading contributions from both one loop and two loop diagrams are considered. For tan β ≡ |v2|/|v1| close to one, contributions from two loop diagrams involving the t quark and the W boson dominate; while for tan β ∼ 10, contributions from two loop diagrams involvin...

This paper proposes the possibility of reuse of the existing optimized DSP code on a scalable high-performance VLIW DSP processor. Since loops are the critical paths in most DSP applications, we focus on issues related to loop optimization. In our approach, we first perform a loop alignment transformation on the source level; we then reuse the existing optimized loop code on the assembly level....

A double-loop iterative method is proposed to design allpass variable fractional-delay (VFD) digital filters basing on the minimization of root-mean-squared group-delay error. In the inner loop, an iterative quadratic optimization is proposed to replace the original nonlinear optimization for the minimization of root-mean-squared group-delay error, while an iterative weighting-updated technique...

This paper introduces a novel theoretical framework for the analysis of the communication overheads associated with loop nest tiling on distributed-memory systems.

This paper presents an evaluation of the new framework for loop nest optimization of the GNU Compiler Collection (GCC). Multiple structural and experimental aspects of this infrastructure are considered: performance of the generated code, effectiveness of the analyzers and optimizers, compilation overhead, together with possible improvements. The evaluation is based on the SPEC CPU2000 and Java...

This paper addresses the problem of optimally operating a set grid-forming devices in an AC microgrid when detailed network model is not available. The main aim approach to maximize power sharing controllable and maintain frequency nodal voltages as close possible their corresponding references. proposed control architecture conformed by local layer each device that intends emulate performance ...

This paper presents a two-step method for control-relevant model reduction of Volterra series models. First, using nonlinear IMC design as a basis, an explicit expression relating the closed-loop performance to the open-loop modeling error is obtained. Secondly, an optimization problem that seeks to minimize the closed-loop error subject to the restriction of a reduced-order model is posed. By ...