Hardwaresoftware codesign for reconfigurable field programmable gate arrays using mixedinteger programming

Hardware-software co-design for reconfigurable field programmable gate arrays using mixed-integer programming. This paper presents a novel mixed-integer programming formulation for scheduling non-preemptive, aperiodic a·pe·ri·od·ic  adj. Not occurring periodically. ape·ri·od, hard real-time tasks with precedence constraints. It provides an integrated partitioning To divide a resource or application into smaller pieces. See partition, application partitioning and PDQ. and scheduling co-synthesis approach. The problem formulation maps some n precedence-related, indivisible INDIVISIBLE. That which cannot be separated. 2. It is important to ascertain when a consideration or a contract, is or is not indivisible. When a consideration is entire and indivisible, and it is against law, the contract is void in toto. 11 Verm. 592; 2 W. jobs having specified processing  requirements, release times, and due-dates to a system involving a  single Central Processing Unit See CPU. architecture, processor central processing unit - CPU, processor The part of a computer which controls all the other parts. Designs vary widely but the CPU generally consists of the control unit, the arithmetic and logic unit ALU, registers, temporary buffers CPU CPU  in full central processing unit   Principal component of a digital computer, composed of a control unit, an instruction-decoding unit, and an arithmetic-logic unit. and up to m potential reconfigurable Field Programmable Gate Arrays FPGAs. We provide a time-indexed mixed-integer 0-1 programming formulation that jointly assigns tasks to either the CPU or to one of the FPGAs, and  determines the task sequence for each software or hardware component  that is utilized, with the objective of minimizing a composite cost of  task partitioning and scheduling. Computational experience is provided using randomly generated instances to demonstrate the applicability of the proposed methodology. Keywords: hardware-software co-design, FPGAs, task partitioning, scheduling, mixed-integer 0-1 programming     Povzetek: Predstavljen je algoritem za porazdeljevanje opravil pri  snovanju programske in strojne opreme. 1 Introduction and Motivation    The task partitioning and scheduling problem bears practical  significance in software/hardware co-design of hard real-time  applications that arise in a host of applications such as flight and  defense control, telecommunication, or nuclear power plants, to name a  few. Specifically, we consider the problem of partitioning and scheduling n indivisible no preemption preemption   U.S. policy that allowed the first settlers, or squatters, on public land to buy the land they had improved. Since improved land, coveted by speculators, was often priced too high for squatters to buy at auction, temporary preemptive laws allowed them to acquire, aperiodic which could be considered as the body of a looped system, precedence-related jobs that  are characterized by specific processing requirements, release times,  and due-dates which are deadlines that cannot be violated vi·o·late    tr.v. vi·o·lat·ed, vi·o·lat·ing, vi·o·lates  1. To break or disregard a law or promise, for example. 2. To assault a person sexually. 3. . The system architecture is depicted de·pict    tr.v. de·pict·ed, de·pict·ing, de·picts  1. To represent in a picture or sculpture. 2. To represent in words; describe. See Synonyms at represent. in Figure 1, and involves a single Central Processing Unit CPU and a maximum of some m potential reconfigurable  Field Programmable Gate Arrays FPGAs controlled by a single controller  unit. The system components are connected with two explicit communication buses channels. The first bus is the system bus, which is used for input/output I/O data transfers, whereas the second is  used for FPGA Field Programmable Gate Array A type of gate array that is programmed in the field rather than in a semiconductor fab. Containing up to hundreds of thousands of gates, there are a variety of FPGA architectures on the market. reconfiguration transfers. The task processing effort is primarily carried out by the CPU, in general, and the FPGAs are  incrementally utilized if the CPU alone cannot conform to Verb 1. conform to - satisfy a condition or restriction; "Does this paper meet the requirements for the degree?" fit, meet  coordinate - be co-ordinated; "These activities coordinate well"  all due-date  restrictions. In contrast with scheduling problems that arise in production and logistical lo·gis·tic   also lo·gis·ti·cal  adj. 1. Of or relating to symbolic logic. 2. Of or relating to logistics. [Medieval Latin logisticus, of calculation systems where it is often desirable to meet  imposed due-dates, it is imperative to comply with the specified  due-dates in the problem under investigation. [FIGURE 1 OMITTED]    Another reason for the use of such dual systems in practice resides  in the benefits a  Find out more on  value,