The Rise of Distributed Computing and Peer-to-Peer Networks
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Questions and Answers

What was the primary outcome of the global network that emerged during the mass adoption phase?

  • Increased reliance on central authorities
  • A centralized hub for all computing resources
  • Decentralization and resource sharing (correct)
  • A limited access to computing resources

    • What was the main benefit of distributed computing?

  • Limiting access to computing resources
  • Introducing a single point of failure
  • Optimizing performance and efficiency (correct)
  • Reducing the power of individual machines

    • What characteristic of cloud computing enabled scalability and flexibility?

  • Virtualization (correct)
  • Centralization
  • Limited resource allocation
  • Reduced on-demand access

    • What was the primary advantage of peer-to-peer networks?

    <p>Promoting decentralization and resilience</p> Signup and view all the answers

    What was the key feature of the new era of computing that emerged?

    <p>Harnessing the collective power of multiple machines</p> Signup and view all the answers

    What is the number of defined routines in the basic MPI-1 implementation?

    <p>around 100</p> Signup and view all the answers

    What is the primary difference between SIMD and SPMD?

    <p>There is no difference between SIMD and SPMD</p> Signup and view all the answers

    What is the primary function of a communicator in MPI?

    <p>to enable communication between processes</p> Signup and view all the answers

    What is the difference between a synchronous send and an asynchronous send?

    <p>A synchronous send waits for the message to be received, while an asynchronous send does not</p> Signup and view all the answers

    What is the purpose of the MPI_COMM_WORLD communicator?

    <p>to initialize the MPI environment</p> Signup and view all the answers

    What is the purpose of the rank identifier in MPI?

    <p>to provide a unique identifier for each process within a communicator</p> Signup and view all the answers

    What is an alternative name for the 'master' node in MPI documentation?

    <p>Controller node</p> Signup and view all the answers

    What is the purpose of the user-defined 'tag' in MPI communication?

    <p>To allow the receiver to understand the message content</p> Signup and view all the answers

    What does MPI_ANY_SOURCE indicate in MPI communication?

    <p>The receiver does not know the sender's process rank</p> Signup and view all the answers

    What is the minimum information required by the sender in MPI communication?

    <p>Receiver's process rank, data type, and user-defined tag</p> Signup and view all the answers

    What is the analogy used to describe MPI data communication?

    <p>Email exchange</p> Signup and view all the answers

    What is the significance of a 'rank' in MPI communication?

    <p>It is only defined within a specific communicator</p> Signup and view all the answers

    What is the purpose of the dest parameter in the MPI_SEND function?

    <p>To specify the rank of the target process in the communicator</p> Signup and view all the answers

    What is the role of the tag in the MPI_SEND function?

    <p>To specify a user-defined 'type' for the message</p> Signup and view all the answers

    What is the purpose of the MPI_ANY_TAG constant?

    <p>To match any tag</p> Signup and view all the answers

    What is the role of the send buffer in point-to-point messaging?

    <p>To hold the data to be sent</p> Signup and view all the answers

    What is the role of the receive buffer in point-to-point messaging?

    <p>To store the incoming data</p> Signup and view all the answers

    What is the nature of the MPI_SEND function?

    <p>Blocking, the function returns after the message is sent to the system</p> Signup and view all the answers

    What is the purpose of the MPI_RECV function?

    <p>To wait for a matching message from the system</p> Signup and view all the answers

    What is the significance of MPI_ANY_SOURCE in the MPI_RECV function?

    <p>It allows the message to be received from any source</p> Signup and view all the answers

    What is the purpose of the status structure in the MPI_RECV function?

    <p>To provide further information about the received message</p> Signup and view all the answers

    What is the consequence of receiving more than count occurrences of the datatype in the MPI_RECV function?

    <p>It is an error</p> Signup and view all the answers

    Where can MPI programs run?

    <p>Either on the same computer or on other computers</p> Signup and view all the answers

    What percentage of the module marks does the Portfolio assessment account for?

    <p>100%</p> Signup and view all the answers

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