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Topic: Scheduler

	ILOG Constraint Programming
		It provides the foundation for solving complex scheduling, sequencing, timetabling, routing and dispatching problems with large numbers of irregular constraints.
		Scheduler allows you to build plans and schedules that take into account temporal constraints and many of the special characteristics of the resources and activities you need to schedule.
		ILOG Scheduler is at the heart of ILOG Plant PowerOps.
	www.ilog.com /products/scheduler (264 words)

	Inside the Linux scheduler
		This was due to the scheduler being implemented using an algorithm with O(n) complexity.
		In this type of scheduler, the time it takes to schedule a task is a function of the number of tasks in the system.
		Even though the prior scheduler worked in SMP systems, its big-lock architecture meant that while a CPU was choosing a task to dispatch, the runqueue was locked by the CPU, and others had to wait.
	www-128.ibm.com /developerworks/linux/library/l-scheduler/?ca=dgr-btw03LinuxScheduler (2270 words)

	Process scheduling
		Scheduling priorities and classes are attributes of LWPs and not processes.
		When scheduling system calls accept a process on which to operate, the operation is applied to each LWP in the process.
		``Scheduler performance'' discusses scheduler latencies of which some applications must be aware, and mentions some considerations other than the scheduler that application designers must take into account to ensure that their requirements are met.
	docsrv.sco.com /SDK_sysprog/_Process_Scheduling.html (616 words)

	Windows Vista Task Scheduler
		Task Scheduler wakes the machine to run the tasks and allows it to return to standby or hibernation when the task is complete, saving energy while still ensuring that critical tasks run on time.
		Scheduler was limited to periodic execution of scheduled tasks.
		First, Task Scheduler now includes an option to retry tasks in case of failure, allowing administrators the flexibility to specify the number of retries and the interval of time between tries.
	technet.microsoft.com /en-us/windowsvista/aa906020.aspx (2935 words)

	Command Scheduler
		The EXEC CLI specified in a Command Scheduler policy list must not generate a prompt or have the ability to be terminated using keystrokes.
		Each scheduled occurrence can be set to run once only or on a recurring basis.
		Command scheduler occurrences can be scheduled before the associated policy list has been configured, but a warning will advise you to configure the policy list before it is scheduled to run.
	www.cisco.com /univercd/cc/td/doc/product/software/ios123/123newft/123_1/g_kron.htm (3053 words)

	An Implementation of Scheduler Activations on the NetBSD Operating System
		Scheduler activations are explained in the context of two-level thread implementations, and then described in detail.
		This section describes the changes needed to implement scheduler activations in the NetBSD kernel, including the separation of traditional process context from execution context, the mechanics of adapting the kernel execution mechanics to maintaining the invariants of scheduler activations, and the separation of machine-dependent and machine-independent code in the implementation.
		That is, rather than violate the semantics of scheduler activations by providing a mechanism to prevent interruption during a critical section, they devised ways to detect when a critical section had been interrupted, and recover from that situation.
	web.mit.edu /nathanw/www/usenix/freenix-sa/freenix-sa.html (5955 words)

	Proposal For A More Scalable Linux Scheduler
		If having an independent, multi queue scheduler with fine grained locks is good for a number of reasons, it's even true that without a good balancing scheme the system could experience bad load distribution by leaving a large amount of CPU cycles free on certain CPUs with tasks on other CPUs waiting for CPU cycles.
		In this test the lat_ctx program is used to load the scheduler because, due the sys_sched_yield() optimization, benchmark suites that uses that function as context switch load will result in lower performance due the increased number of recalculation loops that this scheduler will perform in case of multiple yield()ers.
		In fact the proposed scheduler behave exactly like described at the beginning of this document, that means that it gradually drops the yield()er dynamic priority allowing not yield()ing tasks to be scheduled without wasting CPU cycles.
	www.xmailserver.org /linux-patches/mss-2.html (2810 words)

	LWN: Scheduling domains
		The result, broadly known as "scheduling domains," has been evolving in the -mm tree for some time, but this work looks like it is getting close to ready to break into the mainline.
		The domain-based scheduler aims to solve this problem by way of a new data structure which describes the system's structure and scheduling policy in sufficient detail that good decisions can be made.
		When the scheduler tries to balance the load within a domain, it tries to even out the load carried by each CPU group without worrying directly about what is happening within the group.
	lwn.net /Articles/80911 (2482 words)

	Kernel Korner - I/O Schedulers \| Linux Journal (Site not responding. Last check: 2007-11-07)
		I/O schedulers often are called elevator algorithms, because they tackle a problem similar to that of keeping an elevator moving smoothly in a large building.
		The Deadline I/O Scheduler was introduced to solve the starvation issue surrounding the 2.4 I/O scheduler and traditional elevator algorithms in general.
		The I/O scheduler needs to check and handle only the requests at the head of the FIFO queues, as those are the oldest requests in the queue.
	www.linuxjournal.com /article/6931 (2950 words)

	RSBizWare Scheduler from Rockwell Software
		Scheduler allows you to generate a detailed, finite-capacity schedule that provides a view into the future.
		Scheduler allows users to see — with its familiar Gantt-style planning board — the potentially negative effects of a new rush job or priority order.
		Scheduler allows total resource management and, most importantly, provides time to react to unintended consequences.
	www.rockwellautomation.com /rockwellsoftware/production/scheduler/index.html (275 words)

	The Linux Process Scheduler > Policy (Site not responding. Last check: 2007-11-07)
		The scheduler is the component of the kernel that selects which process to run next.
		The scheduler (or process scheduler, as it is sometimes called) can be viewed as the code that divides the finite resource of processor time between the runnable processes on a system.
		In preemptive multitasking, the scheduler decides when a process is to cease running and a new process is to resume running.
	www.samspublishing.com /articles/article.asp?p=101760&rl=1 (1843 words)

	Linux Scheduling and Kernel Synchronization > Linux Scheduler
		The scheduler has to balance the requirements of these two types of processes and attempt to ensure every process gets enough time to accomplish its task without detrimentally affecting the execution of other processes.
		From a high level, the scheduler’s job in Linux is to take the highest priority active processes, let them use the CPU to execute, and place them in the expired array when they use up their timeslice.
		This case occurs when the scheduler grabbed CPU control before the current process was able to schedule itself or clean up from a successful run.
	www.informit.com /articles/article.asp?p=414983&rl=1 (6153 words)

	Scheduler ?
		Note: the Double Image/Double Image-O scheduler was developed using the Windows Task Scheduler SDK and therefore the functionality of the Double Image Scheduler and the Windows Task Scheduler are one in the same.
		A scheduled task is set to run daily, hourly (or another occurrence) and you wonder why it did not run again at the scheduled time.
		This caused the RUN line in the scheduled task to point to a backup profile that could be incorrect or not present at all.
	www.hostinterface.com /DI5/Support/SchedulerProblemsandSolutions.htm (2157 words)

	Windows Task Scheduler Tutorial with Screenshots
		The Microsoft Task Scheduler is an amazing little FREE tool that (in most cases) comes already with your Windows installation and "hides" in the "Control Panel" folder which is located in the "My Computer" folder on your desktop.
		By using Task Scheduler, you can schedule tasks such as to automate web testing and site monitoring or system tools like the Disk Defragmenter to run at a time that is most convenient for you.
		With Task Scheduler, you can: Schedule a task to run daily, weekly, monthly, or at certain times (such as system startup).
	www.iopus.com /guides/winscheduler.htm (569 words)

	Advanced Task Scheduler
		Advanced Task Scheduler - is a multifunctional task scheduler, which allows launching programs and batch files, opening documents and Internet pages, displaying popup reminders, playing sounds, shutting down and restarting computer, turning off monitor only, stopping running processes, establishing and closing dial-up connections - automatically.
		Advanced Task Scheduler offers full set of scheduling tools that allow running scheduled tasks automatically once, minutely, hourly, daily, monthly, yearly, in specified period of time after starting the computer or by such events as hot key, computer idle, dial-up connection established/terminated.
		Advanced Task Scheduler can be started as a Windows Service and work in the background so it will not take a place on the desktop but all scheduled tasks will work normally.
	www.advscheduler.com /index.html (436 words)

	Scheduling e Planning: Scheduler (software - Rockwell) # ACT Solutions # (Site not responding. Last check: 2007-11-07)
		Scheduler è un applicativo di scheduling a capacità finita per l'ottimizzazione della produzione e la tracciabilità degli ordini di produzione.
		RSBizWar Schedule affronta i punti critici menzionati sopra grazie ad un applicativo client/server altamente configurabile che vi consente di generare una schedulazione dettagliata a capacità finita che fornisce una vista accurata sul futuro.
		Scheduler può inoltre essere integrato con un sistema di raccolta dati operante a livello di area di produzione, per fornire uno stato aggiornato sulle operazioni in corso a livello di produzione.
	www.actsolutions.it /software/scheduling-scheduler-rockwell.htm (559 words)

	Borealis: Scheduler Class Reference
		This is useful when AuroraNode must make some change to the topology of the network (currently limited to adding/removing subscriptions to streams).
		Schedules a task to be run as soon as possible, at some point when no boxes are running.
		Scheduler code may invoke this to gain access to the node's catalog.
	www.cs.brown.edu /research/borealis/developer/doc/classScheduler.html (391 words)

	NY Daily News :: Scheduler
		NY Daily News Masthead: You need a javascript-enabled browser to use this feature.
		In just a few easy steps you can make an eye exam appointment, get your car serviced, get a quote from a storage facility, and more.
		Schedule A Time To Meet With Us Special Offer:
	scheduler.nydailynews.com (78 words)

	Scheduler
		There is a need to schedule additional tasks, and rather than hardcoding the tasks in APPLICATION_START, we need to provide a means of scheduling, managing and monitoring tasks through a user interface.
		Refresh the Schedule Status screen several times to verify the scheduled tasks are firing when required.
		There is a column that displays the time remaining until the next time the task is fired...keep an eye on this column as you refresh to see it change and eventually reset when the task is run.
	www.dotnetnuke.com /LinkClick.aspx?link=638&tabid=616&mid=1532 (418 words)

	Advanced Task Scheduler Frequently Asked Questions
		Advanced Task Scheduler is a powerful cost-effective tool to schedule running of applications, batch files, popup reminders, alarms and much more.
		Advanced Task Scheduler writes log file located on the remote machine successfully when there is a logged on user, if there is no logged on user, log file will be failed to write.
		Advanced Task Scheduler does not support running service under a predefined user account, because services are running under separate secured winstation/desktop, you will not have rights to connect to it if your service runs under any other account except of LOCAL SYSTEM.
	www.advscheduler.com /faq.html (800 words)

	SeaWiFS Scheduler
		The Scheduler program is responsible for monitoring task records in the Todolist table, which contains the current day's task schedule, and starting the tasks according to the their status, type, and scheduled start time.
		When the Scheduler program identifies a task with an OK or ERROR status, it examines the link fields on the Todolist record to see if a subsequent task should be triggered.
		For each successive iteration of the Scheduler program for which there are no changes to the Todolist table, the period is increased by one second until it reaches the maximum period, 60 seconds.
	seawifs.gsfc.nasa.gov /sdps/cprograms/scheduler_main.html (1062 words)

	Windows automation tools - Computer automation for businesses and homes - Windows scripting for ...
		Macro Scheduler is the computer automation tool that has been chosen by home users, small businesses, and Fortune 100 companies alike.
		Macro Scheduler 8.0 is available now from $87 USD (£61.32 GBP) (€91.16 EUR).
		Macro Scheduler 9.0 is now faster and more powerful, yet easier to use than any previous version.
	www.mjtnet.com /macro_scheduler.htm (828 words)

	Job Scheduler - Redwood software
		Cronacle is a robust, highly scalable job scheduler that enables enterprise computer users to manage their background workload effectively and efficiently.
		The Cronacle job scheduler comes with a powerful set of features enabling you to conduct the most complex of tasks quickly and efficiently.
		Cronacle job scheduler Application Connectors communicate directly with strategic solutions, such as SAP R/3, Oracle and Baan to initiate, control and monitor batch tasks executing in the application environment.
	www.redwood.com /information/job_scheduler.htm (263 words)

	OpenSymphony - Scheduler (Quartz Enterprise Job Scheduler API - 1.6.0)
		When a scheduler is first created it is in "stand-by" mode, and will not fire triggers.
		The Scheduler will "remember" that the group is paused, and impose the pause on any new jobs that are added to the group while the group is paused.
		The Scheduler will "remember" that the group is paused, and impose the pause on any new triggers that are added to the group while the group is paused.
	www.opensymphony.com /quartz/api/org/quartz/Scheduler.html (2004 words)

	Tournament Brackets, Tournament Software, Tournament Bracket, Double Elimination Bracket, Tournament Scheduler, Double ...
		Tournament Scheduler is compatible with standard and large format printers including 11 x 17 and larger.
		Additional reports list schedules by team or player to help teams/players know when their first game is.
		Optionally display Tournament Scheduler in full screen mode without the tool bar which is handy if you are using a projector with your monitor.
	www.allprosoftware.com /ts (748 words)

	Oasys Scheduler
		Oasys Scheduler saves you time by graphically indicating which tasks are contributing to a resource’s overallocation directly on the Gantt Chart view.
		Each time a schedule is optimized, Oasys Scheduler presents a detailed report showing exactly how many resource conflicts were resolved, the number of tasks whose leveling delay increased or decreased, and the change in project duration.
		Oasys Scheduler is the first product to make planning easier and more rewarding for Microsoft Project users by optimizing amid numerous tasks, resource conflicts, links, and constraints.
	www.lookaheaddecisions.com /products/oasysscheduler.htm (396 words)

	27 Using the Scheduler
		Note that if the program or schedule that the job points to is disabled, the job will not be disabled and will therefore result in an error when the Scheduler tries to run the job.
		Schedules are created in the schema of the user creating the schedule, and are enabled when first created.
		When a window is closed, the Scheduler will switch the resource plan to the one that was in effect outside the window or in the case of overlapping windows to another window.
	download-west.oracle.com /docs/cd/B19306_01/server.102/b14231/scheduse.htm (9432 words)

	BeBits - Scheduler
		Scheduler is a useful utility that you can program with a list of events that you want it to take action for.
		When events arrive, Scheduler can deliver a reminder message, execute a script or command, launch an application, or invoke an add-on handler.
		The program is flexible enough to be used for everything from just reminding you of birthdays yearly to being a day- to-day planner/organizer, or even for regularly scheduled system/network maintainance like performing hard drive backups.
	www.bebits.com /app/1085 (277 words)

	PostCast Help (Site not responding. Last check: 2007-11-07)
		PostCast Scheduler is a separate program that will help you execute all PostCast actions automatically - without a single intervention on your part.
		The Scheduler may start together with your computer and be hidden or visible as an icon on your task bar.
		The Scheduler can call upon the Internet connection automatically if you detect that you are not already connected to it, forward a new order and insert data in the database.
	www.postcast.com /html/help/aboutscheduler.asp (226 words)

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