C / C++ / MFC

I'm sure it's been thought of various times before, but I'm waiting for a rebuild so this is more productive and self-entertaining than staring at the walls...

Just thinking about it without putting any really useful brain cells at risk, it would seem like it would kill two opposing birds with one stone. Lots of people hate having long namespaces used all over the place. Other people say it's a really bad thing because it can lead to clashes down the line and such. But an XML style scheme could work for both.

Any help will be appreciated.

static CImageList imgList;
imgList.Create(48,48,ILC_COLOR32,1,1);
imgList.Add(AfxGetApp()->LoadIcon(IDR_MAINFRAME));
m_List.SetImageList(&imgList,LVSIL_NORMAL);

m_List.InsertItem(0,_T("1th Test item"));

static CImageList imgList;
imgList.Create(40,48,ILC_COLOR32,1,1);
imgList.Add(AfxGetApp()->LoadIcon(IDB_BITMAP1));
m_List.SetImageList(&imgList,LVSIL_NORMAL);

m_List.InsertItem(0,_T("1th Test item"));

finalize();
return;

#include <stdio.h>
#include <math.h>
#include <mpi.h>
#include <time.h>
#include <stdlib.h>
//#include <vector.h>


//using namespace std;

// Sorts the input row into chunks to be scattered two all the processors.
void sortByProcess(/*vector<double>*/double* list1, double* list2, int count);

// Swaps two rows.
void swap(double** list, int count, int row1, int row2);


int rank, size;
int main(int argc, char * argv[])
{
  double sTime, eTime, rTime;
  /*ifstream*/ FILE* inFile;
  int num_rows = 3200;
  int num_cols = 3200;
  int cur_control = 0;
  double * send_buffer = NULL;
  double * recv_buffer = NULL;
  double ** data = NULL;
  double determinant;
  char strNum_rows[20]; 
  /*vector<double>*/double* file_buffer;

  // Just get the initialization of the program going.
  MPI_Init(&argc, &argv);
  MPI_Comm_rank(MPI_COMM_WORLD, &rank);
  MPI_Comm_size(MPI_COMM_WORLD, &size);

  // If the input file is not given, print message and exit.
  if(argc < 2)
  {
    /*cout <<*/ printf("No input file given.\n");// << endl;
    MPI_Finalize();
    return 0;
  }
  // If the root node (0), then open the input file and read in the
  // number of rows.
  if(!rank)
  {
    printf("After rank inside  if @@@@@");
    inFile = fopen(argv[1], "r");
    fgets(strNum_rows, 20, inFile); 
    num_rows = atoi(strNum_rows);
    printf("num_rows???? =%d",num_rows);
    file_buffer = malloc(num_rows * sizeof(int));

    /*???? inFile.open(argv[1]);
    inFile >> num_rows;
    file_buffer.resize(num_rows);*/
  }
  
  //printf("After rank outside @@@@@@@@#");
  
   send_buffer = (double *)malloc(num_rows * sizeof(double));
  
/*?????send_buffer = new double[num_rows];*/
  //printf("After send_buffer #####@");
  // Broadcasts the number of rows to each processor.
  MPI_Bcast (&num_rows, 1, MPI_INT, 0, MPI_COMM_WORLD);
  num_cols = num_rows / size;
  // Allocate the memory on each processor.
  //printf("After Bcast #####@");

  data = (double **) malloc(num_cols * sizeof(double *));
  /*???? data #####@");*/
  


  for(int i = 0; i < num_cols; i++)
  data[i] = (double *) malloc(num_rows * sizeof(double));

  /* ???  data[i] = new double[num_rows]; */

  for(int i = 0; i < num_cols; i++)
  {
    for(int j = 0; j < num_rows; j++)
      data[i][j] = 0;
  }

   //printf("Before recv_buffer $$$$$$$@");
   recv_buffer = (double *) malloc(num_cols * sizeof(double));
  /*???? recv_buffer = new double[num_cols];*/
   
  

  // Scatter the data.
  for(int i = 0; i < num_rows; i++)
  {
    if(!rank)
    {
      for(int j = 0; j < num_rows; j++){
         fgets(strNum_rows, 20, inFile); 
         file_buffer[j] = atof(strNum_rows);
      }
        /*????? inFile >> file_buffer[j];*/
      sortByProcess(file_buffer, send_buffer, num_rows);
    }
     
    //printf("After sortByProcess ^^^^^^@");

    
    // Scatters the data so that each process gets the next value for their columns.
    MPI_Scatter(send_buffer, num_cols, MPI_DOUBLE, recv_buffer, num_cols, MPI_DOUBLE, 0, MPI_COMM_WORLD   );
    for(int j = 0; j < num_cols; j++)
    {
      data[j][i] = recv_buffer[j];
    }
  }

    //printf("After Scatter  ^^^^^^@");
   
  /*delete []*/ 

free(recv_buffer);
  /*delete []*/ 

free(send_buffer);
  // Begin timing.
  MPI_Barrier(MPI_COMM_WORLD);
  sTime = MPI_Wtime();

   printf("After Barrier  ^^^^^^@");
   MPI_Finalize();
    return 0;

$ mpicc gaussian.c
$ mpirun -np 4 ./a.out matrix.3200.txt
free(): invalid size
[lc2530hz:08268] *** Process received signal ***
[lc2530hz:08268] Signal: Aborted (6)
[lc2530hz:08268] Signal code:  (-6)
[lc2530hz:08268] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20)[0x7f107b56af20]
[lc2530hz:08268] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7)[0x7f107b56ae97]
[lc2530hz:08268] [ 2] /lib/x86_64-linux-gnu/libc.so.6(abort+0x141)[0x7f107b56c801]
[lc2530hz:08268] [ 3] /lib/x86_64-linux-gnu/libc.so.6(+0x89897)[0x7f107b5b5897]
[lc2530hz:08268] [ 4] /lib/x86_64-linux-gnu/libc.so.6(+0x9090a)[0x7f107b5bc90a]
[lc2530hz:08268] [ 5] /lib/x86_64-linux-gnu/libc.so.6(cfree+0x4dc)[0x7f107b5c3e2c]
[lc2530hz:08268] [ 6] ./a.out(+0x1056)[0x564381392056]
[lc2530hz:08268] [ 7] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7f107b54db97]
[lc2530hz:08268] [ 8] ./a.out(+0xbda)[0x564381391bda]
[lc2530hz:08268] *** End of error message ***
--------------------------------------------------------------------------
mpirun noticed that process rank 0 with PID 0 on node lc2530hz exited on signal 6 (Aborted).
--------------------------------------------------------------------------
$