Difference between revisions of "User:Blevando"

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(Work log)
(Work log)
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* Serial output needs attention now that up to 4 cores may write to it at once
 
* Serial output needs attention now that up to 4 cores may write to it at once
 
* A specific teachable task will be chosen next week
 
* A specific teachable task will be chosen next week
 +
 +
'''Week 4'''
 +
* Decided on a specific problem, the coupon collector's problem
 +
** Easy to parallelize, works naturally with shared memory, and fits well with existing curricula
 +
* Implemented single core version in ARM assembly
 +
* Extended functionality to multi-core
 +
* Began to use mutexes and made use of atomic assembly instructions
 +
* Program does not yet work properly; either there exists race conditions or issue with cache coherence
 +
* Continued to debug software and explored solutions presented online

Revision as of 14:38, 25 June 2018

I am an undergraduate at Valparaiso University pursuing a Bachelor of Science in Computer Science.

E-mail: benjamin.levandowski@marquette.edu

Work log

Week 1

  • General Orientation of REU and projects, along with Marquette University and its facilities
  • Met with mentor and student researchers to discuss potential projects
  • Read literature regarding potential projects
    • Previous summer's research paper and an older paper on Embedded Xinu
    • Paper on MiniOS and Papers on the Tock Embedded OS
    • Paper describing Xest
    • Looked at the ARM Cortex-A53 Technical Reference Manual to familiarize myself with ARM assembly and C calling convention
    • Skimmed papers on Computer Science Secondary Education
  • Began to familiarize myself with Embedded Xinu by completing the UART homework from COSC 3250
  • Briefly explored the Rust programming language
  • Finalized a research project

Week 2

  • Read through relevant portions of the ACM/IEEE Computer Science Curricula 2013 Report
  • Found and read papers relating to computer science education in parallel and distributed computing and its relation to hardware
    • Primarily searched through publications that derived from the Special Interest Group in Computer Science Education
  • Furthered my familiarity with the multi-core Pi 3
  • Learned more ARM assembly by exploring the factorial homework from COSC 2200
  • Learned how not to give a presentation
  • Began to build a sandbox environment for XINU PI3 to mirror the arm playground for the Raspberry Pi
    • Successfully able to run an isolated assembly file on the Pi3
    • Environment still needs better structure
    • Need to be able to easily run code on all cores

Week 3

  • Sandbox environment easily runs code on all processors
    • Behavior is unpredictable after code terminates, loop forever for now
  • Completed Responsible Conduct of Research training including online modules and face-to-face discussion
  • Searched for programming tasks used in education
    • Tasks designed for parallel assembly elude me, but some may be able to be modified to fit this purpose
  • Serial output needs attention now that up to 4 cores may write to it at once
  • A specific teachable task will be chosen next week

Week 4

  • Decided on a specific problem, the coupon collector's problem
    • Easy to parallelize, works naturally with shared memory, and fits well with existing curricula
  • Implemented single core version in ARM assembly
  • Extended functionality to multi-core
  • Began to use mutexes and made use of atomic assembly instructions
  • Program does not yet work properly; either there exists race conditions or issue with cache coherence
  • Continued to debug software and explored solutions presented online