What is Smp Cache 2.0 and How to Use It for Cache Memory Simulation?
Smp Cache 2.0 is a trace-driven simulator for cache memory systems on symmetric multiprocessors (SMPs) that use bus-based shared memory[^1^] [^2^]. It is a useful tool for teaching and learning about cache memory systems, cache coherence protocols, bus arbitration schemes, mapping and replacement policies, and other aspects of computer architecture[^2^] [^3^]. In this article, we will explain what Smp Cache 2.0 can do, how to download and install it, and how to create and run your own memory trace files.
Smp Cache 2.0
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What Can Smp Cache 2.0 Do?
Smp Cache 2.0 can simulate various parameters of cache memory systems on SMPs, such as:
The number of processors
The cache coherence protocol (MSI, MESI, MOESI, or Dragon)
The bus arbitration scheme (Round Robin, Random, or Priority)
The mapping policy (Direct, Fully Associative, or Set Associative)
The replacement policy (LRU, FIFO, or Random)
The cache size (number of blocks in cache)
The number of cache sets (for set associative caches)
The number of words per block (memory block size)
The word width
By changing these parameters, you can observe how they affect the performance of the cache memory system, such as:
The program locality
The hit ratio
The miss ratio
The miss penalty
The average access time
The bus traffic
The coherence messages
Smp Cache 2.0 also has a graphical and user-friendly interface that allows you to visualize the simulation results in different ways, such as:
A table that shows the values of the performance metrics for each parameter combination
A graph that plots the performance metrics against one or two parameters
A histogram that shows the distribution of the performance metrics for each parameter value
A trace that shows the sequence of memory accesses and cache operations for each processor
A cache that shows the state of each cache block for each processor
How to Download and Install Smp Cache 2.0?
Smp Cache 2.0 is a free software that can be downloaded from its official website[^2^]. It is compatible with Windows operating systems. To install it, you need to follow these steps:
Download the SMPCache.zip file from the website.
Extract the contents of the zip file to a folder of your choice.
Run the SMPCACHE.exe file to launch the simulator.
You can also watch this video tutorial[^4^] for more details on how to download and install Smp Cache 2.0.
How to Create and Run Your Own Memory Trace Files?
Smp Cache 2.0 uses memory trace files as input for the simulation. A memory trace file is a text file that contains a list of memory accesses made by a processor during the execution of a program. Each line in the file represents one memory access and has the following format:
P R/W A
Where:
P is the processor number (from 0 to N-1, where N is the number of processors)
R/W is the read/write indicator (R for read and W for write)
A is the memory address (in hexadecimal format)
For example, a memory trace file for two processors could look like this:
0 R 00000000
1 W FFFFFFFF
0 W 00000004
1 R FFFFFFFC
0 R 00000008
1 W FFFFFFF8
...
You can create your own memory trace files using any 29c81ba772
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