Actual source code: sendsparse.c
1: /*$Id: sendsparse.c,v 1.37 2001/08/06 21:13:29 bsmith Exp $*/
3: #include src/sys/src/viewer/impls/socket/socket.h
5: /*--------------------------------------------------------------*/
8: /*
9: PetscViewerSocketPutSparse_Private - Passes a sparse matrix in AIJ format
10: to a Socket PetscViewer.
12: Input Parameters:
13: + vw - obtained from PetscViewerSocketOpen()
14: . m - number of rows of matrix
15: . m - number of columns of matrix
16: . nnz - number of nonzeros in matrix
17: . v - the nonzero entries
18: . r - the row pointers (m + 1 of them)
19: - c - the column pointers (nnz of them)
21: Level: developer
23: Notes:
24: Most users should not call this routine, but instead should employ
25: $ MatView(Mat matrix,PetscViewer viewer)
27: Notes for Advanced Users:
28: PetscViewerSocketPutSparse_Private() actually passes the matrix transpose, since
29: Matlab prefers column oriented storage.
31: Concepts: Matlab^sending data, sparse matrices
32: Concepts: Sockets^sending data, sparse matrices
34: .seealso: PetscViewerSocketOpen(), MatView()
35: */
36: int PetscViewerSocketPutSparse_Private(PetscViewer vw,int m,int n,int nnz,PetscScalar *v,int *r,int *c)
37: {
38: PetscViewer_Socket *vmatlab = (PetscViewer_Socket*)vw->data;
39: int ierr,t = vmatlab->port,type = SPARSEREAL,value;
42: PetscBinaryWrite(t,&type,1,PETSC_INT,0);
43: PetscBinaryWrite(t,&m,1,PETSC_INT,0);
44: PetscBinaryWrite(t,&n,1,PETSC_INT,0);
45: PetscBinaryWrite(t,&nnz,1,PETSC_INT,0);
46: #if !defined(PETSC_USE_COMPLEX)
47: value = 0;
48: #else
49: value = 1;
50: #endif
51: PetscBinaryWrite(t,&value,1,PETSC_INT,0);
52: PetscBinaryWrite(t,v,nnz,PETSC_REAL,0);
53: PetscBinaryWrite(t,r,m+1,PETSC_INT,0);
54: PetscBinaryWrite(t,c,nnz,PETSC_INT,0);
55: return(0);
56: }