Blue Gene/L supercomputer P. Coteus H. R. Bickford T. M. Cipolla P. G. Crumley A. Gara S. A. Hall G. V. Kopcsay A. P. Lanzetta L. S. Mok R. Rand R. Swetz T. Takken P. La Rocca C. Marroquin P. R. Germann M. J. Jeanson As 1999 ended, IBM announced its intention to construct a onepetaflop supercomputer. The construction of this system was based on a cellular architecture—the use of relatively smal...

† The author acknowledges support from Universidad Autonoma de Chihuahua and PROMEP in Mexico. ABSTRACT. A hybrid population-based metaheuristic for the space allocation problem in academic institutions is presented that is based upon previous experiments using a range of techniques including hill-climbing, simulated annealing, tabu search and genetic algorithms. The proposed approach incorpora...

This paper proposes a hybrid algorithm to solve the optimal energy dispatch of an ice storage air-conditioning system. Based on a real air-conditioning system, the data, including the return temperature of chilled water, the supply temperature of chilled water, the return temperature of ice storage water, and the supply temperature of ice storage water, are measured. The least-squares regressio...

Proper temperature control is essential in preventing Clostridium perfringens food poisoning. The U.S. Department of Agriculture Food Safety and Inspection Service cooling guidelines offer two options for the cooling of meat products: follow a standard time-temperature schedule or validate that alternative cooling regimens result in no more than a 1-log CFU/g increase of C. perfringens and no g...

The pull-in instability places substantial restrictions on the performance of electrostatically driven MEMS devices by limiting their range of travel. Our objective is to present a systematic method of carrying out optimal design of novel types of electrostatic beams that have enhanced travel ranges. In this paper, we implement a shape optimization methodology using simulated annealing to maxim...

The present paper describes the designing of a thermally and economically optimum mechanical draft counter-flow wet cooling tower. The design model allows the use of a variety of packing materials in the cooling tower toward optimizing heat transfer. Once the optimum packing type is chosen, a compact cooling tower with low fan power consumption is modelled within the known design variables....

We bring a novel Bayesian computing to find sparse estimates for a range of statistical models. Very often, the problem of sparsity identification requires substantial efforts necessary to solve a hard combinatorial optimization involved in a large configuration space of sparsity patterns. For numerous existing methods, presence of many improper local optima is the cause of difficulty yet to be...

TOBUREN, MARK CHRISTOPHER. Power Analysis and Instruction Scheduling for Reduced di/dt in the Execution Core of High-Performance Microprocessors. (Under the direction of Dr. Thomas M. Conte.) Power dissipation is becoming a rst-order design issue in high-performance microprocessors as clock speeds and transistor densities continue to increase. As power dissipation levels rise, the cooling and r...

TOBUREN, MARK CHRISTOPHER. Power Analysis and Instruction Scheduling for Reduced di/dt in the Execution Core of High-Performance Microprocessors. (Under the direction of Dr. Thomas M. Conte.) Power dissipation is becoming a rst-order design issue in high-performance microprocessors as clock speeds and transistor densities continue to increase. As power dissipation levels rise, the cooling and r...

Ant Colony Optimization (ACO) exhibits parallelism, contains certain redundancy and historical information of the past solutions with pheromone trail, and is suitable for implementation on massively parallel architecture. But it is not easy to avoid local optima, especially for large-scale schedule problems. Simulated annealing (SA) is a naturally serial algorithm, but its behavior can be contr...