Introduction to HPC (High Performance Computing)
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Questions and Answers

What is the main focus of HPC (High Performance Computing)?

  • Delivering high computational performance for scientific/engineering applications (correct)
  • Reducing power consumption and energy
  • Providing on-demand access to a shared pool of computing resources
  • Managing cloud computing infrastructure

    • How is HPC infrastructure typically owned and managed?

  • It is owned and managed by third-party cloud service providers
  • Organizations own and manage their dedicated HPC infrastructure (correct)
  • It is owned by individual users
  • It is managed by the government

    • What is the main difference between HPC and Cloud Computing?

  • Cloud Computing focuses on high computational performance for specific tasks, while HPC provides on-demand access to a shared pool of computing resources for general purposes
  • HPC and Cloud Computing are both used exclusively for scientific/engineering applications
  • HPC and Cloud Computing have no significant differences
  • HPC focuses on high computational performance for specific tasks, while Cloud Computing provides on-demand access to a shared pool of computing resources for general purposes (correct)

    • What are the steps to achieve high performance in HPC?

    <p>Increase resources, manage resources, use better algorithms</p> Signup and view all the answers

    What is the purpose of DVFS in HPC?

    <p>To run at lower frequency to reduce power/energy consumption</p> Signup and view all the answers

    Which type of infrastructure is more general-purpose and supports a variety of workloads?

    <p>Cloud Computing infrastructure</p> Signup and view all the answers

    What technological trend involves the distribution of computational tasks among peer devices rather than relying on centralized cloud servers?

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

    What is a problem associated with single core processors?

    <p>Power consumption proportional to cube of frequency</p> Signup and view all the answers

    What does VLSI technology offer in terms of integration density?

    <p>High integration density</p> Signup and view all the answers

    What kind of technology involves the delivery of computing services over the internet via a renting model?

    <p>Cloud Computing</p> Signup and view all the answers

    What problem can occur due to sharing resources in a multiprocessor system?

    <p>Critical section problems and the need for coherence</p> Signup and view all the answers

    What is a problem associated with single core processors' ILP?

    <p>ILP by uniprocessor is limited to 8</p> Signup and view all the answers

    What method involves manual instrumentation for profiling?

    <p>Function and line-based profiling</p> Signup and view all the answers

    What kind of processors are flexible, programmable, and provide higher performance than ASIC?

    <p>(Multicore having accelerators) Each core is multithreaded</p> Signup and view all the answers

    What are ASICs known for?

    <p>(ASIC) with high performance and lower power than processor</p> Signup and view all the answers

    What is the purpose of DVFS in HPC?

    <p>To run at lower frequency to reduce power/energy consumption</p> Signup and view all the answers

    What technology involves the distribution of computational tasks among peer devices rather than relying on centralized cloud servers?

    <p>Edge Computing</p> Signup and view all the answers

    What kind of processors are flexible, programmable, and provide higher performance than ASIC?

    <p>FPGAs (Field-Programmable Gate Arrays)</p> Signup and view all the answers

    What method involves manual instrumentation for profiling?

    <p>Restructuring the program to optimize resources</p> Signup and view all the answers

    What does VLSI technology offer in terms of integration density?

    <p>Higher integration density compared to ASICs</p> Signup and view all the answers

    What problem can occur due to sharing resources in a multiprocessor system?

    <p>Contention for shared resources</p> Signup and view all the answers

    In HPC systems, what is the purpose of task scheduling with more than 2 processors?

    <p>To ensure efficient parallel execution</p> Signup and view all the answers

    What problems can arise due to sharing resources in a multiprocessor system?

    <p>Critical section problems</p> Signup and view all the answers

    What is the typical limit for ILP (Instruction-Level Parallelism) by a uniprocessor?

    <p>8</p> Signup and view all the answers

    What does VLSI technology offer in terms of integration density?

    <p>High integration density</p> Signup and view all the answers

    What is the main focus of Cloud Computing?

    <p>Delivery of computing services over the internet</p> Signup and view all the answers

    What does Fog Computing aim to achieve?

    <p>Reducing latency by processing closer to the source of generation</p> Signup and view all the answers

    What problem is associated with single core processors' ILP?

    <p>Not exploited</p> Signup and view all the answers

    What do ASICs offer in terms of performance and power consumption compared to processors?

    <p>Higher performance and lower power consumption</p> Signup and view all the answers

    What is the main challenge associated with automatically parallelizing sequential code?

    <p>&quot;Finding successful auto-parallelisation tools&quot;</p> Signup and view all the answers

    What is the primary advantage of multiprocessors over ASICs?

    <p>Flexibility and programmability</p> Signup and view all the answers

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