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Showing results for 'table for process server'.
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Hi everyone, I am working on a model for a project and I need to make so for each server, only one worker will be assigned and work at that server for the workers entire shift. I have uploaded a simplified version of my model. The workers schedules are already in the model. For example: On day 1, worker 1 works all day so they should go to either room1 or room2 (servers) and then only go to that server for the rest of the day. Worker 2 works only in the morning and should take which room/server is not taken by worker 1. Once worker 2's shift is over, worker 3 should come in and take the room that worker 2 left. After the day is over, the room assignment should reset for the next day. Is there a way to do this in Simio? Thanks in advance for any help! WorkerServerModel.spfx -
Before you start adding state variables to a library object, I suggest that you first familiarize yourself with all of the existing states. One easy way to do this is to instantiate the object (e.g., Worker1) and then go to any expression field and type "Worker." and look at the list. In the case of Worker, there are over 100 states, functions, and properties built-in to the Worker object. Another way is to subclass the Worker, then go to the Definitions tab of the MyWorker object and you can see all of the built-in definitions by category: There is a pretty good chance that what you need is already there. But if not, use the same screen illustrated above and add whatever state (or property, event, ...) that you need. As far as referencing or assigning that custom state or a built-in state, it is done using ObjectName.StateName. For example if you added a state named TimeStartedMove to MyWorker, and you wanted to assign that value, you might assign MyWorker.TimeStartedMove to TimeNow. The tricky part, especially with more complex objects like Workers, is to determine exactly when/how to assign that value. Sometimes you can interact with the model itself to insert an Assign at the correct location (let's say in the Loaded Add-on Process). Or sometimes you might need to override the process logic in your custom object. The SimBits RecordDistanceTraveled and ElectricVehicle are examples to review.
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Assigning workers to specific servers by work day
dsturrock replied to esimiouser's topic in SI General Discussions
If you haven't already done so, I'd start by reviewing the SimBit ResourceSelectionConcepts. It contains several models that explain different types of resource selection. In particular, I'd suggest a combination of the following approaches: Create a table for each Worker (and/or each Server) where columns in the table represent the constraint or exclusions. For example, you might have a server table with columns for each day, and each column might contain a list of workers who can potentially be used on that day. Use resource lists to select from. possibly with exclusion conditions (maybe referring back to a table) of which resources cannot be used on that server and that day. -
Hello, I am trying to run over 100 different scenarios in a design of experiments approach. I have a data table that references different vehicles and sources to set certain conditions, but I'm having a hard time converting the table (which has 100 rows) into the experiment section to run. Any advice appreciated, thank you!
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Hello everyone, I am working on a project for class and am having difficulties assigning workers to specific servers depending on what day it is within the simulation. I have 18 workers and 16 servers. Each worker has their own 25 day schedule. On a given day, there is between 5 and 8 workers on shift and each worker needs to be assigned to 2 specific servers and no other worker should go to those servers on that day. However, due to the different schedules, a given worker will not always be assigned the same rooms they were assigned the previous day. Is it possible to assign each worker a specific server by day? Or is there another way that this might be possible? Thanks in advance for any suggestions!
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I'm making a call center simio model. The 7 types of calls are generated at sources and then move down a path to a server. This server represents a queue that is formed at the call center. After the queue server the calls are transferred to 1 of 7 desks (which are represented by a server) where a call agent is working. How do I make it so the calls do not go to one of the server desks until a desk becomes available. As it currently stands the calls go right through the queue server and build up at some desks even if there are free desks available. -
Hello everyone, I am creating a new "customize" model and try to enable addon process, but I cannot find this option in the following list.
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Hi all! I am simulating a facility with nearly 40 servers, each one starting with some entities in the input node at initialization and having a different capacity. Each server has a 0 input buffer capacity. My entity creation is currently set to having an interarrival time to be 4.33 weeks (1 month) with a random number of entities created. Currently, it runs 24/7 and does not care about the time, but I want to incorporate that. How can I make it so that the entities arrive once a month, let's say the first Monday, at 8am? How can I make it so the servers are only processing between 8am and 4pm Monday - Friday? The work schedule doesn't seem to work for me, but I could be doing it wrong, since I have a 0 input buffer, which I can't change as it's part of my routing logic for overflow. I would be happy with using timers or a process logic if someone can explain it to me. Ideally, the entities only arrive when it's during the working time, and the entities remaining after 4pm are just put on hold until 8am the next day. Thanks in advance! -
You want to make the servers have a Capacity Type of Schedule and follow the default Standard Week. If you don't want to give them a lunch break, just change the definition of the Standard Day. Leave the default Off Shift Rule of Suspend Processing. The easiest approach for arrivals is to have a Source with an Interarrival time of 4.33 weeks (or 4 weeks) and an integer random distribution for the Entities Per Arrival. Doing a "first Monday" is possible, but a bit complicated because Simio time does not have the concept of Month because months are of varying size. You could probably specify the initial Time Offset to be early in a month, then maybe make the interarrival time be something like DateTime.DaysInMonth(DateTime.Month(Timenow),DateTime.Year(TimeNow)) which would make the next arrival be exactly one month later (same day of the month). When you say you have no buffers, what do you mean? If an entity arrives when all servers are busy, should it be balked (possibly disposed) or should it wait somewhere like on the server input node, on a path or in the Source output node? If the above arrival approach isn't exact enough, you can put exact arrivals in a data table. The arrival time could be specified at any exact datetime you desire and still have the Entities Per Arrival be a distribution.
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Hello everyone, I have a server which can potentially have many entities waiting in the input queue. All these entities have different priorities (as a model entity state variable). I want to retrieve these values to then select the highest one and put it on a status label to track this during the run. Is there an option to do this? Regards, MF
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Hi everyone! In the project I'm developing I need something similar to what was done on the Simbit "EntityFollowsSequence". The difference is that I need to be able to change the destinations (update the contents of the sequence table) over time (the number of rows of the table can be fixed, although it would be ideal if they could be dynamically created). Could someone please explain how it would be possible to do this? My edition is NOT Enterprise. Thanks.
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Thank you for the quick and detailed response! I see the error I was making with work schedule and have tested it on one server, it seems to work as intended. Since each of my servers have a different capacity, would I need to create a unique work week and unique day type for them all? Or is there a quicker work around? The manual inputs for the date time are a great work around, I'm only modeling for a few years so I don't mind inputting a few dates. What I mean by there being no buffers is that no server can have a queue. I used a list for selecting the destination on the output node of each source (total of 8 ) where it's a hierarchy. It can go to a select number of servers and if all of them are full it goes to a dummy server of infinite capacity that exits the items to an overflow sink.
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Hello everyone, I am trying to add a new property for a Server object, which would be a string. For instance, the property needs to be something like "Type of Patient" (that each server can attend). I created a property within the Server's subclass, but it does not work. ¿How can I define a new property for a certain object? Thanks in advance, Marcel Favereau
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Define a new property for a certain object
Marcel Favereau replied to Marcel Favereau's topic in SI General Discussions
Yes, and it did not work for me. The object-reference (server) property created (and named as "exampleVariable") does not appear in the property window of server objects. -
Hi I have an entity that is moved through the network via vehicles. The vehicle will drop of the entity at the first server which then gets processed through two servers. I would like to use the vehicle that dropped off the entity at the Input to the first server to be used to pick up the next entity at the output of the second server. Is there a way to save the exact Vehicle that was used and specify that as the Vehicle to use at the second pick up point? Hopefully to a global variable and not to the entity (in my actual model, the entity going in to Server 1 is not the next entity coming out of Server 2). At the moment I am using 'Reserve Closest' as the reservation method at Server 2. I know that is incorrect, but I'm not sure how to setup this up using the other methods. In the attached model, process works for the first entity, but does not for the second entity onwards. Due to other limitations in the model, I need to have the Vehicles to 'Remain in Place' during idle. Thanks in advance for the help. SpecificVehicle.spfx
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Happy new year! One thing that I noticed is that with this model, the server never have a state of "blocked". I increased the processing time of Server2 and added a status pie to Server1. The server 1 is either Processing or starved, but never blocked according to the pie. But it should be blocked part of the time since I increased the processing time of Server2 to force this. It looks like the Server1 only accepts a new item to process if the path between Server1 and Server2 has room for at least one more vehicle. So the time that it should be blocked is considered as part of the "Starved" instead. I tried to figure out why this happens without success. Anyone knows why this happens? I attach the model to the post. Thank you! Input Server1 not blocked.spfx
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Hi I've got a model where the situation is like this: 1. 3 Worker: W1 W2 W3 2. 3 Server: S1 S2 S3 On Monday (work schedule), W1 will work in S1 in the morning and work in S2 in the afternoon. W2 will work on S2 in the morning and S1 in the afternoon. But on Tuesday, W1 will work in S2 in the morning and S3 in the afternoon. W2 will work in S3 in the morning and S2 in the afternoon. The server properties in the secondary resource are "select from the node list." But since the node list for S1 and S2 contain both W1 and W2, and they both have the same hour of working (4+4), when the S1 server seized the resource on Tuesday morning, instead of W1, W2 got allocated instead( W2 should be in S3). I have tried: 1. Using server selection goal to " smallest distance," but it didn't work since the worker will keep swapping the room every day 2. Giving each worker a new initial value and setting the selection goal to "smallest value," but they still have the issue. 3. Try setting idle action for the worker to stay at the node, but sometimes the worker will go to the wrong destination from the first entity, hence no one working in the other room. (2 worker stay together) Is there any method to realize this idea? Thanks in advance
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I've hunted through the forums and online and cannot seem to find a fix for my simple application. I have 1 worker operating multiple work centers (Simio server). He should finish all work at one "server" before moving on to the next server. Otherwise, his utilization goes down substantially due to him bouncing back and forth between the servers and walking all day. I.e. Server A: Parts in Que: 1,2,3,4,5,6 Server B: Parts in Que 1,2,3,4,5,6 Worker is doing A1, B1, A2, B2, A3, B3, A4, B4, A5, B5, A6, B6 with a walking time inbetween each part. I want worker to do A1, A2, A3, A4, A5, A6, walk, B1, B2, B3, B4, B5, B6 I would prefer not to use constraint logic due to the complexity. I've read that somehow the solution seems to lie in setting the Secondary Resources "Repeat Group" status to false and attempting to use the "keep reservation" function, however I have not had any luck. I set the "keep reservation if" function to "ServerA.InputBuffer.Contents.NumberWaiting > 0" which in theory should fix the problem, however my worker continues running back and forth. Any help would be appreciated. Thanks, Jon -
Hi, there is a simple approach you can use. Use Connectors between the queue server and the desks. At Buffer Logic of the Desks, change the Input Buffer Capacity to 0. Create a List with the Input nodes of the seven Desks. On the Output of the queue server change Entity Destination Type to Select From List and the goal to Smallest Value. Keep the default expression. It should work fine. -
Hello, I have two concerns. In one of my small models I want my transporter to make a round and pick up the entities at the different locations and bring them to a destination (Server1). In addition, I would like that the individual times are measured with a state MyModelEntity.TmpStart and MyModelEntity.Duration, in order to calculate afterwards with a transport cost rate the cost for each individual part. Unfortunately I'm getting desperate with this and getting various error messages, does anyone know how to implement this? Best Regards, Gashi
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Hello all, Can I use "print" command or similar process steps to print some information into console or a file for debugging? For example, in other programming environment, such as Javascript, I can insert ```console.log("xxxx");``` into program. Thank you!
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Enable add-on process option in a customize model
deod replied to GHao's topic in SI General Discussions
Hello, You can go to the process tab in the model. Once in the process tab you can click on create process to create add on processes at the model level.
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You are not able to use an index to return an item in a List. I would suggest using a Table instead of a List
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I am working on a model of a production line where one of the work stations is a long work table with six workers at it. These workers perform identical assembly tasks and will sometimes leave the table in order to transport finished items to the next step in production. I am currently representing the work table as a single server. I am wondering if it is possible to dynamically change the server's capacity based on how many workers it is able to seize at a given time. Essentially, the server can process with just one seized worker but can seize up to six. Is this something I can implement with Simio's built in functionality, or is it easier just to represent the six spots in the table as individual servers? Thank you!
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I have a multiple combiners into which a single worker provides entities. While the worker is at a specific combiner, I want to check if that combiner's output buffer is full. I'd prefer not to create a separate process for each combiner as I have dozens. How do I code the process so that it is generic and that 1 process can work for any combiner? I'm hoping this is an easy question. Sorry if it's obvious. Thanks for your help.
