Analysis of Parallel Summation with Point-to-Point Communications

Parallel Summation; the given http://siber.cankaya.edu.tr/ozdogan/ParallelComputing/cfiles/code21.c program adds $n$ numbers both in sequential and parallel.

• Take a look at the source code.
• Download the http://siber.cankaya.edu.tr/ozdogan/ParallelComputing/cfiles/code21 binary.
• Download the Excel http://siber.cankaya.edu.tr/ozdogan/ParallelComputing/cfiles/parallelsumtable.xls file to fill the table by increasing the value of $n$ and the value of $nproc$.
• Login to the tiny cluster.
• Make all the test runs by the following command;

   mpirun -nolocal -np XXprocXX code21 XXNXX
  

• DO NOT FORGET TO ERASE your output files (#outputfile.dat) after your tests.

   rm -f *outputfi*
  

• Analyse your plots.