GPU Programming in Microprocessor Based Design - Part 3
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Questions and Answers

What is the main purpose of CUDA programming?

  • To restrict programming flexibility
  • To accelerate applications using only the CPU
  • To limit the use of GPU computing
  • To enable parallel computing on GPU and CPU (correct)
  • Which programming languages are commonly used for GPU programming?

  • C++ and Python (correct)
  • C# and Swift
  • HTML and CSS
  • Java and Ruby
  • What does CUDA stand for?

  • Central Unified Design Architecture
  • Central Unified Device Architecture
  • Computer Unified Design Architecture
  • Computer Unified Device Architecture (correct)
  • How many fundamental issues are mentioned in programming a GPU?

    <p>Two</p> Signup and view all the answers

    What distinguishes CUDA-enabled GPUs from other GPUs?

    <p>They offer explicit GPU memory management and a compute-designed API</p> Signup and view all the answers

    What is the primary benefit of using OpenACC directives in GPU programming?

    <p>Increased portability across different platforms</p> Signup and view all the answers

    What is the primary purpose of CUDA in extending C?

    <p>Adding constants, types, and functions that expose GPU capabilities</p> Signup and view all the answers

    Which key abstractions primarily define the capabilities of a GPU in CUDA?

    <p>Hierarchy of thread groups, shared memories, and barrier synchronization</p> Signup and view all the answers

    When writing programs for optimal performance in CUDA, what is important to understand?

    <p>Underlying execution model and memory model</p> Signup and view all the answers

    Where does the host code run in a CUDA program?

    <p>Host CPU and host memory</p> Signup and view all the answers

    In CUDA, what is the sequence of executions represented by a thread?

    <p>A sequence of executions</p> Signup and view all the answers

    What allows multiple hosts to share the GPU in the Kepler model?

    <p>Kepler architecture</p> Signup and view all the answers

    What is the main purpose of using 'nvprof --metrics gld_efficiency,gst_efficiency' in CUDA?

    <p>To view global load/store efficiency metrics.</p> Signup and view all the answers

    According to the discussion on CUDA, what is one way to optimize performance on the GPU?

    <p>Maintain a balanced load across all threads.</p> Signup and view all the answers

    What does Amdahl's law help in estimating?

    <p>The sequential portion of an algorithm.</p> Signup and view all the answers

    In Amdahl's law formula (S / P) = 1 / (1 - P) + S, what do 'S' and 'P' represent?

    <p>'S' represents the parallel portion and 'P' represents the sequential portion of the algorithm.</p> Signup and view all the answers

    What happens if data access conflicts occur in a GPU application, according to the CUDA discussion?

    <p>The application may give incorrect results or become serialized.</p> Signup and view all the answers

    How can one ensure data parallelism in CUDA, based on the provided content?

    <p>Arrange the algorithm so it is data parallel friendly and look for regularity/consistency.</p> Signup and view all the answers

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