12 Questions
What is the primary purpose of a node in a Distributed Shared Memory (DSM) system?
To contribute a portion of its physical memory to the DSM system
How is every address in a DSM system uniquely identified?
By a combination of the node identifier and the page frame number
What is the role of the home node for a page in a DSM system?
To drive all the coherence operations related to that page
What is the primary reason for incorporating caching in a DSM system?
To achieve low latency and high performance
What information does the home node keep track of for its memory pages?
Pages accessed, modifications, caching enabled/disabled, and lock status
What is the purpose of the information kept by the home node for its memory pages?
To enforce the sharing semantics that a given DSM will implement
What is the main issue with accessing a page repeatedly from a node that is not its home node?
It causes a significant delay in state updates.
What is the role of the home node in a DSM system?
To keep track of who is the current owner of a given page.
What is the benefit of separating the home node from the owner node?
It allows for more flexibility in managing state updates.
What is the purpose of creating page replicas in a DSM system?
To increase the performance of the system through load balancing.
In a datacenter environment, how many copies of shared state are typically created?
Three
What is responsible for managing the consistency of page replicas in a datacenter environment?
All of the above.
Explore how Distributed Shared Memory (DSM) systems are designed with nodes contributing a portion of their physical memory to form a global shared memory pool, available for applications in the system. Learn about the allocation of memory for caching, replication, and local memory within DSM systems.
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