Parallel Architecture Taxonomy and SIMD/MIMD Programming Quiz
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Questions and Answers

Which type of MIMD architecture utilizes a high throughput communication bus for shared memory communication?

  • Shared memory MIMD (correct)
  • Hybrid memory MIMD
  • Distributed memory MIMD
  • Private memory MIMD

    • What is the drawback of shared memory MIMD architecture?

  • High communication speed
  • Low cost
  • Independent operation
  • Low scalability (correct)

    • Which programming model is associated with shared memory MIMD architecture and utilizes #pragmas for expressing parallel multi-threading?

  • CUDA
  • OpenMP (correct)
  • DirectX
  • MPI

    • What is a characteristic of private memory MIMD architecture?

    <p>Network communication overhead</p> Signup and view all the answers

    Which programming model is associated with private memory MIMD architecture and achieves communication using send/receive of network messages?

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

    What type of architecture is made of multiple standalone machines connected using a network and can operate independently from each other?

    <p>Distributed memory MIMD</p> Signup and view all the answers

    Which type of architecture involves the use of low-level network programming API such as Sockets and high-level API like MPI for communication?

    <p>Private memory MIMD</p> Signup and view all the answers

    In the context of Intel architecture, which multimedia extension was introduced in 1996 and is also known as SIMD extensions?

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

    What is the primary purpose of using gprof for performance profiling?

    <p>To analyze the runtime behavior of the program, including execution time and frequency of function calls</p> Signup and view all the answers

    What is a disadvantage of invasive profiling?

    <p>Cannot profile already running systems and potentially very high overhead</p> Signup and view all the answers

    Which tool is used for memory consumption analysis, including memory accesses, memory leaks, and cache performance?

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

    What does non-invasive profiling involve?

    <p>Statistical sampling of the program without modifying the code</p> Signup and view all the answers

    What is a notable advantage of statistic-based profilers like gprof?

    <p>Small overhead and precise call graph</p> Signup and view all the answers

    Which type of profiling involves modifying the program code by inserting calls to functions that record data?

    <p>Invasive profiling</p> Signup and view all the answers

    What is the purpose of the #include directive with angle brackets in C programming?

    <p>To specify the standard header location</p> Signup and view all the answers

    What does the caller program need during the linking phase, when using a library in C programming?

    <p>The header file of the library at linking time</p> Signup and view all the answers

    What is the purpose of specifying the library location using the -L option of the linker in C programming?

    <p>To link with a library during compilation</p> Signup and view all the answers

    What is the role of conditional compilation in C programming?

    <p>Tailor the code to different constraints without maintaining multiple code bases</p> Signup and view all the answers

    What type of architecture is characterized by Single Instruction, Single Data (SISD) processing?

    <p>Shared memory MIMD architecture</p> Signup and view all the answers

    What is a notable advantage of using statistic-based profilers like gprof for performance profiling?

    <p>Minimal impact on program execution</p> Signup and view all the answers

    What is the advantage of statically linked executable files?

    <p>More portable</p> Signup and view all the answers

    What is a drawback of static library?

    <p>Code duplication among different programs</p> Signup and view all the answers

    What does the 'ar -rcs' command do when creating a static library?

    <p>Creates a new static library</p> Signup and view all the answers

    What is the main function of the make tool in software development?

    <p>All of the above</p> Signup and view all the answers

    Which command is used to build a dynamically linked library from object files built with position independent code?

    <p>$ gcc -shared -o libname.so file1.o file2.o</p> Signup and view all the answers

    Study Notes

    MIMD Architecture

    • CC-NUMA (Cache-Coherent Non-Uniform Memory Access) architecture utilizes a high throughput communication bus for shared memory communication.

    Drawbacks of MIMD Architecture

    • A drawback of shared memory MIMD architecture is that it can suffer from cache coherence issues.

    Programming Models

    • The OpenMP programming model is associated with shared memory MIMD architecture and utilizes #pragmas for expressing parallel multi-threading.
    • The MPI (Message Passing Interface) programming model is associated with private memory MIMD architecture and achieves communication using send/receive of network messages.

    Private Memory MIMD Architecture

    • A characteristic of private memory MIMD architecture is that each processor has its own private memory.

    Distributed Memory Architecture

    • Distributed memory architecture is made up of multiple standalone machines connected using a network and can operate independently from each other.
    • It involves the use of low-level network programming API such as Sockets and high-level API like MPI for communication.

    SIMD Extensions

    • The MMX (Multimedia Extensions) was introduced in 1996 and is also known as SIMD extensions.

    Performance Profiling

    • The primary purpose of using gprof is for performance profiling.
    • A disadvantage of invasive profiling is that it can slow down the program.

    Memory Consumption Analysis

    • Valgrind is a tool used for memory consumption analysis, including memory accesses, memory leaks, and cache performance.

    Non-Invasive Profiling

    • Non-invasive profiling involves using statistical sampling to collect data without modifying the program code.

    Statistic-Based Profilers

    • A notable advantage of statistic-based profilers like gprof is that they have low overhead.

    Invasive Profiling

    • Invasive profiling involves modifying the program code by inserting calls to functions that record data.

    C Programming

    • The purpose of the #include directive with angle brackets is to include a library header file.
    • During the linking phase, the caller program needs a library's object files and the library's location.
    • The purpose of specifying the library location using the -L option of the linker is to tell the linker where to find the library.
    • The role of conditional compilation in C programming is to allow code to be compiled differently based on certain conditions.

    SISD Processing

    • Von Neumann architecture is characterized by Single Instruction, Single Data (SISD) processing.

    Statistic-Based Profilers

    • A notable advantage of using statistic-based profilers like gprof for performance profiling is that they have low overhead.

    Static Linking

    • A statically linked executable file has the advantage of being self-contained and portable.
    • A drawback of static library is that it can lead to code duplication.

    Creating a Static Library

    • The 'ar -rcs' command is used to create a static library.

    Make Tool

    • The main function of the make tool in software development is to automate the build process.

    Dynamically Linked Library

    • The command to build a dynamically linked library from object files built with position independent code is gcc -shared -o libmylib.so mylib.o.

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    Description

    Test your knowledge of parallel architecture taxonomy, SIMD programming (including Intel architecture from SSE to AVX and GPU programming with oneAPI), and MIMD programming with shared and private memory models. Explore concepts like SISD, SIMD, MISD, and MIMD in this comprehensive quiz.

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