Blog :: 2010/09/...

MPI find minimum demo
Posted 2010/09/03
How to find the 'find minimum' using MPI. #include "mpi.h" #include <stdlib.h> #include <stdio.h> #include <string.h> #define MAXSIZE 1000 void main(int argc, char **argv) { int myid, numprocs, data[MAXSIZE], i, x, myresult, result, status; FILE *fp; MPI_Init(&argc,&argv); MPI_Comm_size(MPI_COMM_WORLD,&numprocs); MPI_Comm_rank(MPI_COMM_WORLD,&myid); if(myid == 0){ if((fp = fopen("./rand_data.txt", "r")) [...]
MacBook Pro
Posted 2010/09/03
New work laptop Some things move about as fast in every university and I guess buying new equipment is one of those things. Today I finally got hold of my work laptop. I had to swear to bring it in to be asset tagged by the computer people. Previous experience has [...]
MPI Hello World
Posted 2010/09/01
Hello world MPI example. #include <stdio.h> #include <string.h> #include <stddef.h> #include <stdlib.h> #include "mpi.h" main(int argc, char **argv ) { char message[20]; int i,rank, size, type=99; MPI_Status status; MPI_Init(&argc, &argv); MPI_Comm_size(MPI_COMM_WORLD,&size); MPI_Comm_rank(MPI_COMM_WORLD, &rank); if(rank == [...]