xref: /libCEED/tests/t213-elemrestriction.c (revision 9df49d7ef0a77c7a3baec2427d8a7274681409b6)
1 /// @file
2 /// Test creation, use, and destruction of a blocked element restriction with multiple components in the lvector, and libCEED owns ind pointer
3 /// \test Test creation, use, and destruction of a blocked element restriction with multiple components in the lvector, and libCEED owns ind pointer
4 #include <stdlib.h>
5 #include <ceed.h>
6 
7 int main(int argc, char **argv) {
8   Ceed ceed;
9   CeedVector x, y;
10   CeedInt num_elem = 8;
11   CeedInt blk_size = 5;
12   CeedInt num_comp = 3;
13   CeedInt *ind = malloc(sizeof(CeedInt)*2*num_elem);
14   CeedScalar a[num_comp*(num_elem+1)];
15   CeedElemRestriction r;
16 
17   CeedInit(argv[1], &ceed);
18 
19   CeedVectorCreate(ceed, (num_elem+1)*num_comp, &x);
20   for (CeedInt i=0; i<(num_elem+1); i++) {
21     a[i+0*(num_elem+1)] = 10 + i;
22     a[i+1*(num_elem+1)] = 20 + i;
23     a[i+2*(num_elem+1)] = 30 + i;
24   }
25   CeedVectorSetArray(x, CEED_MEM_HOST, CEED_USE_POINTER, a);
26   CeedVectorView(x, "%12.8f", stdout);
27   for (CeedInt i=0; i<num_elem; i++) {
28     ind[2*i+0] = i;
29     ind[2*i+1] = i+1;
30   }
31   CeedElemRestrictionCreateBlocked(ceed, num_elem, 2, blk_size, num_comp,
32                                    num_elem+1,
33                                    num_comp*(num_elem+1), CEED_MEM_HOST,
34                                    CEED_OWN_POINTER, ind, &r);
35   CeedVectorCreate(ceed, 2*blk_size*2*num_comp, &y);
36   CeedVectorSetValue(y, 0); // Allocates array
37 
38   // NoTranspose
39   CeedElemRestrictionApply(r, CEED_NOTRANSPOSE, x, y, CEED_REQUEST_IMMEDIATE);
40   CeedVectorView(y, "%12.8f", stdout);
41 
42   // Transpose
43   CeedVectorGetArray(x, CEED_MEM_HOST, (CeedScalar **)&a);
44   for (CeedInt i=0; i<(num_elem+1)*num_comp; i++)
45     a[i] = 0;
46   CeedVectorRestoreArray(x, (CeedScalar **)&a);
47   CeedElemRestrictionApply(r, CEED_TRANSPOSE, y, x, CEED_REQUEST_IMMEDIATE);
48   CeedVectorView(x, "%12.8f", stdout);
49 
50   CeedVectorDestroy(&x);
51   CeedVectorDestroy(&y);
52   CeedElemRestrictionDestroy(&r);
53   CeedDestroy(&ceed);
54   return 0;
55 }
56