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Dynamic job shop scheduling?
dynamic job shop scheduling is the scheduling of the machine it can processes different jobs at time. it switches from one job to another job. in real time process jobs are executed based on the time.
What are the key challenges faced in job shop scheduling problems and how can they be effectively addressed?
Key challenges in job shop scheduling problems include managing multiple job priorities, limited resources, and minimizing production time and costs. These challenges can be effectively addressed by implementing advanced scheduling algorithms, optimizing resource utilization, and using real-time monitoring and adjustments to adapt to changing conditions. Additionally, implementing efficient communication and coordination among different departments can help streamline the scheduling process and improve overall productivity.
Hard and soft real-time scheduling?
Soft real-time scheduling means that, while processor and other scheduling algorithms may be optimized to give preference to higher-priority processes, no absolute guarantee of performance can be made. The hard real-time computer is designed for specialized purposes, where even the smallest amount of latency can make the difference between life and death.
What type of scheduling is there in RTOS?
A scheduler is the heart of every RTOS. It provides the algorithms to select the task for execution. Three common scheduling algorithms are > Cooperative scheduling > Round-robin scheduling > Preemptive scheduling RTOS uses preemptive (priority based) scheduling. In some cases, real-time requirements can be met by using static scheduling.
What is online scheduling and offline scheduling?
Online scheduling is the useage of competitive analysis (or online algorithms) on scheduling problems. Online algorithms is characterized by making decision "online", which means a point in the time axe. In this point of time, we can not see the future jobs or tasks, whereas we only know the jobs or tasks before or at this point of time. In contrast, in offline scheduling problems, there is no the conception of "point of time". We are lords of the world. We stay outside the real world and can see the past and future (jobs or tasks). TThis aspect is called "offline". Since we can see the past and the future, we know the total knowledge of the problem before we make decision (not depending the time). Even use the simpliest method, such as enumeration, then we can obtain the optimal solution. Nontheless, by not knowing the future knowledge of problem, we must make decision. Then we use a critierion to meaure the performance of online algorithm, called competitive ratio. This is a conception like approximation ratio, compering the objective value obtained by online algorithm and that of offline (optimal) algorithm. Offline scheduling is concerned of the classical scheduling problems. Not introducing the conception of "online". Offline scheduling problem is scheduling problem.
What scheduling algo is used for real time OS?
Cooperative schedulingPreemptive scheduling Rate-monotonic schedulingRound-robin schedulingFixed priority pre-emptive scheduling, an implementation of preemptive time slicingFixed-Priority Scheduling with Deferred PreemptionFixed-Priority Non-preemptive SchedulingCritical section preemptive schedulingStatic time schedulingEarliest Deadline First approachStochastic digraphs with multi-threaded graph traversal
Is it true that men and women cannot handle problems?
Yes and no. Some men and some women handle problems very well. Others have a hard time handling even minor problems, but they are in the minority. Most men and most women have problems that they handle well, but there are some problems that they have trouble handling.
What is real time scheduling?
Real time means that correctness of result depends on both functional correctness and time that the result is delivered* Soft real time:- Utility degrades with distance from deadline* Hard real time:- System fails if deadline window is missed* Firm real time:- Result has no utility outside deadline window, but system can withstand a few missed results
What is time complexity of assembly line scheduling?
time complexity for Assembly line scheduling is linear.i.e O(n)
What items of information about a task might be useful in real time scheduling?
Ready time, starting deadline, completion deadline, processing time, resource requirements, priority, subtask structure.
What are some common scheduling problems that individuals or organizations face, and how can they be effectively addressed?
Common scheduling problems that individuals or organizations face include double booking, lack of communication, and unexpected changes. These issues can be effectively addressed by using scheduling tools and software, setting clear priorities and deadlines, and regularly communicating and updating schedules with all involved parties. Additionally, creating buffer time between appointments and being flexible can help accommodate unexpected changes and prevent scheduling conflicts.
What are the problems encountered by secretary?
Some common problems faced by secretaries include managing multiple tasks simultaneously, handling difficult or demanding personalities, organizing and prioritizing work effectively, and maintaining confidentiality while handling sensitive information.
