Actual source code: ex40.c
petsc-3.5.4 2015-05-23
2: static char help[] = "Tests taking part of existing array to create a new vector.\n\n";
4: #include <petscvec.h>
8: int main(int argc,char **argv)
9: {
11: PetscMPIInt size;
12: PetscInt n = 10,i;
13: PetscScalar array[10];
14: Vec x;
16: PetscInitialize(&argc,&argv,(char*)0,help);
17: MPI_Comm_size(PETSC_COMM_WORLD,&size);
18: if (size != 1) SETERRQ(PETSC_COMM_SELF,1,"This is a uniprocessor example only!");
20: /* create vector */
21: for (i=0; i<n; i++) array[i] = i;
22: n = n-1;
24: VecCreateSeqWithArray(PETSC_COMM_SELF,1,n,array+1,&x);
25: VecView(x,PETSC_VIEWER_STDOUT_SELF);
26: VecDestroy(&x);
27: PetscFinalize();
28: return 0;
29: }