JACOBI
A Program or the Jacobi Iteration

JACOBI is a program which uses the Jacobi iteration to get an approximate solution of a (diagonally dominant) linear system A*x=b.

Your assignment is to take one of the source codes, make an OpenMP version, and compare the runs using 1 and 16 processors. You should only have to change subroutine JACOBI, and you should only have to insert OpenMP directives. The include statements and the timing calls are already there.

This assignment is to be turned in. You should turn in 3 files:

1. your modified source code
2. the output from the run on 1 processor on the HPC.
3. the output from the run on 16 processors on the HPC.

Source Code:

• jacobi.c, the C source code.
• jacobi.cpp, the C++ source code.
• jacobi.f, the FORTRAN77 source code.
• jacobi.f90, the FORTRAN90 source code.

Script for Local Execution:

• jacobi_local.sh, runs the program locally.
• jacobi_local_output.txt, the output file.

Batch Script for Execution on the FSU HPC Cluster:

• jacobi_batch.sh, a script to submit to the batch system.
• jacobi_batch_output.txt, the output file.

You can go up one level to the OpenMP page.