Simulation Models in C++ using the Psim3 Simulation Package

acomm.cpp – A model with asynchronous communication of processes using system mailbox.

batch.cpp - A model of a Simple Batch Operating System. No multiprogramming.

batchmio.cpp - A simulation model of a Batch System with multiprogramming, using CPU & DISK bursts.

batchmiog.cpp - A simulation model of a Batch System with multiprogramming
  using CPU & DISK bursts.  The model uses a simple GUI for input 
  paramemeters implemented with OpenGL and GLUI/GLUT (GlutMaster).

batmfcfs.cpp - A simulation model of a Batch System with multiprogramming, 
  no I/O processing. First Come First Served (FCFS) scheduling. 
  
batmsjf.cpp - A simulation model of a Batch System with multiprogramming, 
 no I/O processing. Shortest Job First (SJF) scheduling.   
 
batmrr.cpp - A simulation model of a batch system with multiprogramming.  
  no I/O processing. Round Robin scheduling.
  
batmsrt.cpp - A simulation model of a Batch System with multiprogramming, 
 no I/O processing.  Shortest Remaining Time First (SRTF) scheduling.   
  
consprod.cpp - A simulation model for the consumer-producer synchronization problem, using binary and counting semaphores.  
  
consprodm.cpp - A model of the Consumer-producer (Bounded Buffer) synchronization Problem. This model uses a monitor with two condition variables (empty and full).
       
philos1.cpp - A model of the Five Philosophers synchronization/deadlock problem
 This model illustrates the occurrence of deadlocks.      

Philos2.cpp - A model of the Five Philosophers problem. Informal attempt to deadlock solution. This model sometimes deadlocks. 
 
philoshw.cpp - A model of the Five Philosophers  problem. Solution: Deadlock prevention by disallowing the hold and wait condition.  
 
philoscw.cpp - A model of the Five Philosophers problem. Solution: Use of a critical section disallowing the circular Wait condition. 
 
reawrite.cpp -  A C++ model of Concurrent Readers/Writers problem. This model uses two binary semaphores.
    
reawriterp.cpp -  A C++ model of Concurrent Readers/Writers problem. This model uses two binary semaphores and assigns higher priority to writers.   

scomm.cpp - A model of Synchronous process communication (direct communication). IPC synchronous communication in C++/Psim3.
       
fifopgrep.cpp - This model implements First In First Out (FIFO) page replacement algorithm.

lrupgrep.cpp - This model implements the Least Recently Used Page (LRU) 
  page replacement algorithm. 
  
optpgrep.cpp - This model implements Optimal page replacement algorithm.
  
wspgrep.cpp - This model implements Working Set (dynamic) page replacement algorithm.  
        
dsfcfs.cpp -  A simulation model of Disk scheduling using FCFS discipline with moving-head disk.         
  
dssstf.cpp - A simulation model of Disk scheduling using Shortest-Seek-Time-First (SSTF) discipline with moving-head disk.