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Performance of Programs using tool Suite on Multi-core Processors

Example 1.1


Write a Pthread program to find out number of primes number with in range 1 to 20000 using shared variable. Using Intel Thread Checker , Find out Whether any Data Race Condition appears during execution.

Example 1.2

Take Correct Version of Example 1.1. Use Intel VTune Performance Analyzer to analyze this application to reduce execution time.

Example 1.3


Write a Pthread program to compute Matrix Matrix Multiplication. Use Intel Thread Checker with this application to find out any possible existence of deadlock , data race situation.

Example 1.4


Use Example 1.3 with Intel Vtune Performance Analyzer to find out most time consuming section of this application. Take appropriate corrective measure and develop new version of optimized application.

Description of MPI-Pthread & Thread Programs & Performance Analysis Using tools

Example 1.1:

Write A pthread program to find out number of primes within 1 and 20000
(Download source code : FindPrimes.c )    
  • Objective

      • Write A pthread program to find out number of primes within 1 and 20000. Use Intel Thread Checker to find out existance of data race condition with in this application.

  • Description

      • This is a very simple program to find out number of primes with in 1 and 20000. But this perticular example contain some bug , because of which , when the program is executed , then data race condition may occur. As a result for multiple run , the same application will give different result. User is suggested to use Intel Thread Checker to find out , where at runtime , data race condition appearing and how many times.

  • Input

      • None

  • Output

      • Total Number of Primes , with in 1 and 20000

Example 1.3:

Write a Pthread program to compute Matrix Matrix Multiplication
(Download source code : MatrixMatrixMultiplication.c )    
  • Objective

      Write an Pthreads program to calculate Matrix Matrix Multiplication. Optimize the code with Intel VTune Performance Analyzer

  • Description

      The program given here is an unoptimized version of the application. user is suggested to use Intel VTune Performance Analyzer and find out the most time consuming section of instruction with in this program and then develop a optimized version of the code.

  • Input

      • None

  • Output

      • Resultant Matrix

Centre for Development of Advanced Computing