Actual source code: receivedense.c

  1: /*$Id: receivedense.c,v 1.15 2001/03/23 23:19:53 balay Exp $*/
  2: /* 
  3:    This is part of the MatlabSockettool Package. It is called by 
  4:  the receive.mex4 Matlab program. 
  5:   
  6:         Written by Barry Smith, bsmith@mcs.anl.gov 4/14/92
  7:          Updated by Ridhard Katz, katz@ldeo.columbia.edu 9/28/03

  9:   Since this is called from Matlab it cannot be compiled with C++.
 10: */


 15: #include <stdio.h>
 16:  #include petscsys.h
 17: #include "mex.h"
 18: #define ERROR(a) {fprintf(stdout,"RECEIVE %s \n",a); return -1;}
 19: /*-----------------------------------------------------------------*/
 22: int ReceiveDenseMatrix(mxArray *plhs[],int t)
 23: {
 24:   int    m,n,compx = 0,i;
 25: 
 26:   /* get size of matrix */
 27:   if (PetscBinaryRead(t,&m,1,PETSC_INT))   ERROR("reading number columns");
 28:   if (PetscBinaryRead(t,&n,1,PETSC_INT))   ERROR("reading number rows");
 29:   if (PetscBinaryRead(t,&compx,1,PETSC_INT))   ERROR("reading if complex");
 30: 
 31:   /*allocate matrix */
 32:   plhs[0]  = mxCreateDoubleMatrix(m,n,compx);
 33:   /* read in matrix */
 34:   if (!compx) {
 35:     if (PetscBinaryRead(t,mxGetPr(plhs[0]),n*m,PETSC_DOUBLE)) ERROR("read dense matrix");
 36:   } else {
 37:     for (i=0; i<n*m; i++) {
 38:       if (PetscBinaryRead(t,mxGetPr(plhs[0])+i,1,PETSC_DOUBLE))ERROR("read dense matrix");
 39:       if (PetscBinaryRead(t,mxGetPi(plhs[0])+i,1,PETSC_DOUBLE))ERROR("read dense matrix");
 40:     }
 41:   }
 42:   return 0;
 43: }

 47: int ReceiveDenseIntMatrix(mxArray *plhs[],int t)
 48: {
 49:   int    m,compx = 0,i,*array;
 50:   double *values;
 51:   int    ierr;
 52: 
 53:   /* get size of matrix */
 54:   PetscBinaryRead(t,&m,1,PETSC_INT); if (ierr) ERROR("reading number columns");
 55: 
 56:   /*allocate matrix */
 57:   plhs[0] = mxCreateDoubleMatrix(m,1,mxREAL);

 59:   /* read in matrix */
 60:   array = (int*) malloc(m*sizeof(int)); if (!array) ERROR("reading allocating space");
 61:   PetscBinaryRead(t,array,m,PETSC_INT); if (ierr) ERROR("read dense matrix");

 63:   values = mxGetPr(plhs[0]);
 64:   for (i =0; i<m; i++) {
 65:     values[i] = array[i];
 66:   }
 67:   free(array);

 69:   return 0;
 70: }
 71: 
 72: