/************************************************************
  File:          cholesky_master.h                       
  Description:   A program that inputs a matrix from a file 
                 and computes the Cholesky decomposition 
		 using several processes.
                                                         
  Author:        Dana Vrajitoru                          
  Organization:  IUSB                                    
  Date:          August 16, 2002                           
**************************************************************/

#ifndef CHOLESKY_MASTER_H
#define CHOLESKY_MASTER_H

// Asks for the file name, reads the matrix from the file, and sends
// each line to the corresponding slave process.
void Read_matrix(int proc_nr);

// Asks for a file name for the result, collects the resulting matrix
// by line from the slave processes, then writes it to the file. Since
// the resulting matrix is 0 above the diagonal, the master only
// receives the part of the matrix on and below the diagonal.
void Write_solution(int proc_nr);

// The master function: inputs the data and writes the results.
void Master(int proc_nr);

#endif