xref: /libCEED/tests/t203-elemrestriction.c (revision d1d35e2f02dc969aee8debf3fd943dd784aa847a)
1 /// @file
2 /// Test creation, use, and destruction of a blocked element restriction with multiple components in the lvector
3 /// \test Test creation, use, and destruction of a blocked element restriction with multiple components in the lvector
4 #include <ceed.h>
5 
6 int main(int argc, char **argv) {
7   Ceed ceed;
8   CeedVector x, y;
9   CeedInt num_elem = 8;
10   CeedInt blk_size = 5;
11   CeedInt num_comp = 3;
12   CeedInt ind[2*num_elem];
13   CeedScalar a[num_comp*(num_elem+1)];
14   CeedElemRestriction r;
15 
16   CeedInit(argv[1], &ceed);
17 
18   CeedVectorCreate(ceed, (num_elem+1)*num_comp, &x);
19   for (CeedInt i=0; i<(num_elem+1); i++) {
20     a[i+0*(num_elem+1)] = 10 + i;
21     a[i+1*(num_elem+1)] = 20 + i;
22     a[i+2*(num_elem+1)] = 30 + i;
23   }
24   CeedVectorSetArray(x, CEED_MEM_HOST, CEED_USE_POINTER, a);
25   CeedVectorView(x, "%12.8f", stdout);
26   for (CeedInt i=0; i<num_elem; i++) {
27     ind[2*i+0] = i;
28     ind[2*i+1] = i+1;
29   }
30   CeedElemRestrictionCreateBlocked(ceed, num_elem, 2, blk_size, num_comp,
31                                    num_elem+1,
32                                    num_comp*(num_elem+1), CEED_MEM_HOST,
33                                    CEED_USE_POINTER, ind, &r);
34   CeedVectorCreate(ceed, 2*blk_size*2*num_comp, &y);
35   CeedVectorSetValue(y, 0); // Allocates array
36 
37   // NoTranspose
38   CeedElemRestrictionApply(r, CEED_NOTRANSPOSE, x, y, CEED_REQUEST_IMMEDIATE);
39   CeedVectorView(y, "%12.8f", stdout);
40 
41   // Transpose
42   CeedVectorSetValue(x, 0.0);
43   CeedElemRestrictionApply(r, CEED_TRANSPOSE, y, x, CEED_REQUEST_IMMEDIATE);
44   CeedVectorView(x, "%12.8f", stdout);
45 
46   CeedVectorDestroy(&x);
47   CeedVectorDestroy(&y);
48   CeedElemRestrictionDestroy(&r);
49   CeedDestroy(&ceed);
50   return 0;
51 }
52