xref: /libCEED/tests/t203-elemrestriction.c (revision 5f67fade47e323fa44018f277580acfe24400ad4)
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 ne = 8;
10   CeedInt blksize = 5;
11   CeedInt ncomp = 3;
12   CeedInt ind[2*ne];
13   CeedScalar a[ncomp*(ne+1)];
14   CeedElemRestriction r;
15 
16   CeedInit(argv[1], &ceed);
17 
18   CeedVectorCreate(ceed, (ne+1)*ncomp, &x);
19   for (CeedInt i=0; i<(ne+1); i++) {
20     a[i+0*(ne+1)] = 10 + i;
21     a[i+1*(ne+1)] = 20 + i;
22     a[i+2*(ne+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<ne; i++) {
27     ind[2*i+0] = i;
28     ind[2*i+1] = i+1;
29   }
30   CeedElemRestrictionCreateBlocked(ceed, ne, 2, blksize, ncomp, ne+1,
31                                    ncomp*(ne+1), CEED_MEM_HOST,
32                                    CEED_USE_POINTER, ind, &r);
33   CeedVectorCreate(ceed, 2*blksize*2*ncomp, &y);
34   CeedVectorSetValue(y, 0); // Allocates array
35 
36   // NoTranspose
37   CeedElemRestrictionApply(r, CEED_NOTRANSPOSE, x, y, CEED_REQUEST_IMMEDIATE);
38   CeedVectorView(y, "%12.8f", stdout);
39 
40   // Transpose
41   CeedVectorSetValue(x, 0.0);
42   CeedElemRestrictionApply(r, CEED_TRANSPOSE, y, x, CEED_REQUEST_IMMEDIATE);
43   CeedVectorView(x, "%12.8f", stdout);
44 
45   CeedVectorDestroy(&x);
46   CeedVectorDestroy(&y);
47   CeedElemRestrictionDestroy(&r);
48   CeedDestroy(&ceed);
49   return 0;
50 }
51