A memory design based on logi cal banks is analyzed for shared memory mul tiprocessor systems In this design each phys ical bank is replaced by a logical bank consist ing of a fast register and subbanks of slower memory The subbanks are bu ered by in put and output queues which substantially re duce the e ective cycle time when the refer ence rate is below saturation The principal contribution ...

This contribution introduces a class of Galois eld used to achieve fast nite eld arithmetic which we call an Optimal Extension Field OEF This approach is well suited for implementation of public key cryptosystems based on elliptic and hyperelliptic curves Whereas previous reported optimizations focus on nite elds of the form GF p and GF m an OEF is the class of elds GF p for p a prime of specia...

phosphate intermediates, judging from lack of contribution to adenine, uracil, and cytosine nucleosides in RNA and DNA. The group of enzymatic activities that catalyze the conversion of guanine and guanosine to guanosine triphosphate (namely, guanosine kinase, purine nucleoside phosphorylase, purine nucleoside monophosphate kinase, nu cleoside diphosphate kinase, and purine nucleoside triphosph...

SORs (superoxide reductases) are enzymes involved in bacterial resistance to reactive oxygen species, catalysing the reduction of superoxide anions to hydrogen peroxide. So far three structural classes have been identified. Class I enzymes have two iron-centre-containing domains. Most studies have focused on the catalytic iron site (centre II), yet the role of centre I is poorly understood. The...

Regular exercise has the capability of decreasing the incidence and progress of certain cancers. Murine sarcoma, (S-180) cells were transplanted to control (TC), exercise trained (10 week, 1 hour day, 5 times/ week) mice, which had the swimming training terminated at the time of transplantation (ETT), and also to a group of mice that continued to exercise during tumor bearing (ETC). Continuous ...

Shared-bus multiprocessors represent a mainstream of accepted and commercially viable computer systems. However, as microprocessors become faster and demand more bandwidth, the already limited scalability of shared-bus decreases even further. As an eeort, not a mutually exclusive but rather a complementary to developing better backplane bus, this paper considers adapting distributed shared-memo...

Multiprocessors are widely used today as a way to achieve high performance using commodity microprocessors. Since different applications place different demands on the system , performance evaluation in the design phase of such systems is important. The most common method is the use of simulators. This thesis presents a simulator of a multiprocessor for throughput-oriented applications , using ...

In multiprocessors a parallel program's execution time is directly innuenced by the number of processors it is allocated. The problem of scheduling parallel programs in a multiprogrammed environment becomes one of determining how to best allocate processors to the diierent simultaneously executing programs in order to minimize mean response time. In this paper we address the problem of how many...

Distributed shared memor~~ r~otnp~ters (DSM’s) l7ave arrilvd [4/, 151 to challenge mai@ames. DSM’s scale to 128 ~3rocessors with tMv to eight p\‘oc’essor nodes. As skared memory mlrlti~3l.oc.c’.~sors (SMP’s), DSM’s provide a singk system imug<, and muintain a “sl7ared e~~eryt17incg” model. Large-sc,ale UNIX servers using the SMP arcl7itectm.e c,halienge mait7jkame.s in legaqv use and applicatio...