O2DESNet.RCQueues

(O²DES.NET Resource Constrained Queues)

An O²DES.NET library for modeling flexible queueing system with consideration of resource constraints. The NuGet package can be found at https://www.nuget.org/packages/O2DESNet.RCQueues/.

Change Log

Version 3.11

• Implement activity condition in RCQ model

Version 3.10

• Provide load to resource allocation mapping in RCQsContext

Version 3.9

• Provide BatchOrder function property to set up resource assignment priority function by batch and request time

Version 3.8

• Provide Activity Handler by Load type
• Provide RCQContext base class for simulation modeling

Version 3.7

• Enable query for Active/Passive batches by Resource

Version 3.6

• Update with O2DESNet v3.6 for enhanced HourCounter
• Refined the code and follows the naming convention

v3.5.2

Bug fixed for HourCounter on PendingLock resources

v3.5.1

+ Add HourCounters for pending resources caused by both active and passive occupation

This is for a more precise statistics when calculating the utilization of resources, when resource cycles, such as shifts, occur.

v3.4.1

• Solved HourCounter warm-up issues on tracing Activities Previously, when tracing activities is enabled, the hour-counter corresponding to the activites are dynamicly added into RCQsModel. Therefore, they are not warmed-up, which causes the statistics to be biased.

v3.3.1

• Simplified following dynamic properties of RCQsModel class so that for each Resource the statistics only include Activities utilized it.

  • Resource_Activity_HC_Occupied
  • Resource_Activity_HC_Active
  • Resource_Activity_HC_Passive
  • Resource_Activity_HC_Pending

• Added following dynamic properties to group loads in each activity according to their status

  • Activity_Loads_Pending
  • Activity_Loads_Active
  • Activity_Loads_Passive

• Fixed bug in recall for pending loads upon resource release

...

v1.0.7

1. Bug fixed in HourCounter update

v1.0.6

1. Collect and output statistics on activities and resources, using HourCounters

v1.0.5

1. Fixed the bug of generating redundant arrival when a load is stucked at the Starter activity.
2. Implemented methods to configure a SimpleRCQ by code, i.e., AddResrouce, AddActivity, AddSucceeding, SetStarter.

v1.0.4

1. Use only a single starter activity instead of multiple starters in a list.
2. Inter-arrival time is not specified as a static property of the Statics, whereas, the Duration of the single starter is used instead.