Questions tagged [simulation]

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1answer
124 views

Architecting a predictive modeling software

I have a predictive model which runs 10,000+ scenarios to predict the outcome. It's a micro-simulator model for an insurance company. The data part is almost static with changes from time-to-time, ...
-2
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1answer
203 views

Algorithm - Simulation of a soccer match

I'm implementing an App for fun. It consists of a soccer round-robin tournament simulator in which all teams play each other. A Team consists in a simple object: class Team{ String _teamName; ...
0
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1answer
72 views

Passing messages through a chain of containers in python

When I write python code for simulations, I often end up with the following situation: I have a class describing the general environment which contains a list of instances of a class that describes ...
0
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1answer
78 views

Logic circuit simulation: homebrew or third party solution?

Software I'm working on requires simulation of logic circuits, both combination and sequential. Now the simulation doesn't need to be too detailed, in fact it could be detrimental to the function of ...
1
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1answer
84 views

Simulating Comparison Without Using Comparison Primitives

In the same way that you can simulate the if statement and functions, I am wondering if there is a way to simulate the comparison operators ==, !=, >, >=, <, <=. For example, in ...
0
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2answers
201 views

How to Implement a `function` with `return` Without Using the `function` keyword

Along the lines of How to Simulate Control-Flow without using Control-Flow Primitives, I am wondering how to simulate return from a function. Given an example setup like this: console.log(a(10)) ...
1
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1answer
64 views

Displaying periodic simulations via web interface

The gist of my problem is that I'm trying to make a basic simulation for periodically collected data. More specifically, given the position of a radio antenna, the RF patterns would be simulated ...
0
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0answers
56 views

Program Simulation Techniques

I've noticed that data-flow analysis uses approximations of a programs steps by simulating the value flow in some way (which I don't fully understand yet). They describe it well here. On page 4 they ...
4
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1answer
194 views

Massive Simulator Software Architecture [closed]

I am looking to perform a large overhaul on a complex simulation system that simulates several instances of several vehicle models in a classroom training environment. For example, 24 students may be ...
1
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2answers
246 views

Good practice to store runtime data

Cheers guys, I am quite new to C++, however, I have some years of experience in programming and I am open for challenges :-) Currently, I am designing a "small" scientific program to perform some ...
0
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1answer
600 views

Design Pattern similar to ESB

Background I am trying to write a simulator where multiple AI agents are competing and/or collaborating to achieve the goal of maximizing some utility function. Each agent has the ability to ...
3
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3answers
261 views

How to simulate living things in software [closed]

I was thinking about creating a simple game/simulation where cars drive around in a city as part of a pet project. That made me think how I would simulate these individual cars in a simulated world. ...
-1
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1answer
97 views

How should I represent an object whose instances share the same set of member function identifiers, but those identifiers specify different behaviors?

I'm attempting to develop an open-source Python module for modeling task networks for discrete event simulation. The most fundamental component is the task object, which includes various data such as ...
3
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3answers
338 views

How to create simulator for distributed algorithms written in simple language

I started development of simulator for simulation of distributed algorithms in language C. My work consist of creating simple language for algorithm description and simulator which takes the described ...
1
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1answer
244 views

When implementing Monte Carlo Tree Search for TicTacToe, do I simulate won states?

I'm trying to debug my MCTS implementation for TicTacToe (it doesn't block obvious wins for the opponent). I was wondering what the algorithm should do if it expands to a node which is a game over ...
1
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1answer
189 views

Good design for modular computational physics code in Fortran

I'm currently working on a computational physics code in Fortran. In summary, the code performs the following operations: Initialize Loop until done Advance solution over time Possibly write output ...
27
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3answers
17k views

What algorithm is used by elevators to find the shortest path to travel floor orders?

I'm trying to simulate an elevator, as always I started very simple by taking only a single order at a time, then added memory to the elevator in the form of queues so that floors are traveled in the ...
1
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0answers
220 views

Running simulations in parallel, managing each separately [closed]

Let me preface this by admitting that I am a novice - this is the first real project I am doing outside of a class. I am running a single-threaded C++ simulation several hundred times (i.e. I have ...
2
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3answers
4k views

Linking two or more different programming languages

I would like to ask how optimizer software written in C/C++ can be linked to simulator software written in FORTRAN or any other language. I have copied the section of journal article of Singh and ...
4
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1answer
1k views

Parking Simulation Software Design

I've been requested to develop a quite well known problem for a job interview. The Parking Simulation which an example can be found here. I came up with some ideas for which design pattern should I ...
1
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2answers
395 views

Simulating a Production Line

I'm trying to simulate a DVD production line in Java. The thing I have a problem with is the calculation of the time in this kind of simulation and the number of DVDs per hour. The production line ...
1
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0answers
40 views

modelling an ecosystem evolving on a landscape

I would like to understand a bit more the theory and the approaches available in modelling a population roaming across a landscape. Assume discrete time and space as simple as a discrete grid and a ...
1
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1answer
373 views

Implementing a VM for simulation [closed]

I am aware of this question, and I think I know why it has been closed. I hope that my question manages to be more specific. My skill level: I have a "Computer Science" degree. I have programmed in ...
-2
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2answers
3k views

Using a global struct with pthreads in C [closed]

I'm trying to simulate clients going into a bank and being served by tellers over a period of time. I am using a thread to determine if a client came into the bank via an arrival rate and am using ...
0
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1answer
83 views

No repeated coordinates in random walker ensemble

i'm simulating an ensemble of random walkers in 2D in python, I set [x,y] coordinates of my walkers to be gaussian in a 2D grid, then use a rand array of -1 and +1 to move up down left right: N=20 #...
0
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2answers
105 views

How to predict a future simulation state

We have a program that combines the simulation of an aircraft system and predefined pedagogical scenarios for trainee pilots to learn how to use this system. When we follow the normal scenario, ...
4
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1answer
146 views

How to define the motion path of one object on a surface of the other one?

I have an uncommon problem. There are 2 3D objects, which are represented by arrays of vertices and triangles (.stl files). Each of them contains a big enough amount of vertices: 1-10 mln ones. The ...
0
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2answers
570 views

Looking to simulate the rolling of a ball around a roulette wheel, while the resulting number is already known

I want to make a roulette board with a ball spinning and landing on a certain field. The catch is that the field the ball will land on, is known beforehand. I want the animation to look somewhat ...
0
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1answer
168 views

How should I handle measurement logging in my Discrete Event Simulation engine?

I'm attempting to build a Discrete Event Simulation library by following this tutorial and fleshing it out. How should I handle logging metrics in my Discrete Event Simulation engine? If you don't ...
0
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1answer
1k views

How to simulate an ATM terminal in a POS

Recently I started same projects to improve my programming skills, so I tried to develop a point of sale software. I started to bay the required hardware (ticket printer, Barcode Scanner….) to make my ...
3
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6answers
554 views

Design pattern for method to accept one of several static items in C#?

I want to illustrated my question by way of a (hopefully) representative example. Lets say I have a situation where I am developing a class library in C# to be used in some simulations. I want to ...
1
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2answers
87 views

Determinining “value” in multi-agent microeconomical simulation

I am trying to determine an objective way for a self-interested agent to calculate the optimal buying/selling price for goods in a multi-agent simulation not dissimilar to Sugarscape (http://en....
1
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3answers
199 views

Microeconomical simulation: coordination/planning between self-interested trading agents

In a typical perfect-information strategy game like Chess, an agent can calculate its best move by searching the state tree for the best possible move, while assuming that the opponent will also make ...
2
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1answer
811 views

Shuffling algorithm with no “self-mapping”?

To randomly shuffle an array, with no bias towards any particular permutation, there is the Knuth Fischer-Yeats algorithm. In Python: #!/usr/bin/env python import sys from random import randrange ...
19
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5answers
640 views

Algorithm to Find the Aggregate Mass of “Granola Bar”-Like Structures?

I'm a planetary science researcher and one project I'm working on is N-body simulations of Saturn's rings. The goal of this particular study is to watch as particles clump together under their own ...
9
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2answers
2k views

How would I combine 'Command' and 'Composite' to simulate a time delay?

As a learning exercise (I am not in school - just an old guy trying to learn something new), I am trying to write a logic gate simulation that incorporates propagation delay. The user should also be ...
1
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2answers
84 views

Evaluating mean and std as simulations are added

I have simulations that evaluate a certain value X. I run the simulations several times and save the value of X in a vector V. When all the runs have finished I evaluate the mean and standard ...
8
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2answers
1k views

Is there any better approach to shortest path finding within a (vehicular) traffic network?

Dear fellow programmers, We're developing software which simulates vehicular traffic. Part of the process called "assignment" is concerned with assigning vehicles to their routes and has to use some ...
4
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1answer
507 views

How to implement a simulation pattern for a repository?

Let's say I have a repository of functions. These functions work with business objects within a database, CMS or other third party API. For example, my repository interacts with virtual files and ...
3
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2answers
752 views

Efficient ways to model cars moving along a road

This has never come up, so I've never thought how a data or programming model should work that simulates (a) bird's eye view of cars moving and some rudimentary physics, (b) how the cars would follow ...
6
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2answers
2k views

Best approach to selecting programming languages and 3D graphics API for simulating physics experiments

I am starting a research project and need to nail down a programming language and 3D graphics API where I will be creating an environment in the field of molecular cell biology where I will be ...
97
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6answers
146k views

What's the difference between simulation and emulation

I frequently see Simulation and Emulation in computer science. These two terms seem synonymous. Is there any difference between Simulation and Emulation?
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3answers
2k views

Simulating double-click, how long should I wait between clicks?

I'm simulating a double click programmatically and I want to have a slight pause between both clicks in order to better simulate a real user. I know the interval should be less than ...
11
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3answers
23k views

elevator algorithm and implementation [closed]

I wanted to know how (real) elevators work. But, so far, I could not find much material about the algorithms they use, nor software (if any) for simulation. Could anybody give me references for that?
4
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4answers
246 views

Parameterize Agent Based Simulation (OOP-Question)

I'd like to hear my fellow programmer's thoughts on the issue of parametrizing agent based simulations: Consider: Simulation core, including geometry, collision tests, some rules Different agents (...
2
votes
3answers
246 views

Simulating simultaneous entities

Consider the need to simulate a set of entitities in an accurate way. All entities exist in an artificial timeline. Within 'steps' of this timeline, all entities can do certain operations. It is ...