xref: /libCEED/tests/t203-elemrestriction.c (revision a8d322087fa8f150327cdc2bf14a171452b711ec)
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   CeedTransposeMode lmode = CEED_NOTRANSPOSE;
16 
17   CeedInit(argv[1], &ceed);
18 
19   CeedVectorCreate(ceed, (ne+1)*ncomp, &x);
20   for (CeedInt i=0; i<(ne+1); i++) {
21     a[i+0*(ne+1)] = 10 + i;
22     a[i+1*(ne+1)] = 20 + i;
23     a[i+2*(ne+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<ne; i++) {
28     ind[2*i+0] = i;
29     ind[2*i+1] = i+1;
30   }
31   CeedElemRestrictionCreateBlocked(ceed, lmode, ne, 2, blksize, ne+1, ncomp,
32                                    CEED_MEM_HOST, 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   CeedVectorGetArray(x, CEED_MEM_HOST, (CeedScalar **)&a);
42   for (CeedInt i=0; i<(ne+1)*ncomp; i++)
43     a[i] = 0;
44   CeedVectorRestoreArray(x, (CeedScalar **)&a);
45   CeedElemRestrictionApply(r, CEED_TRANSPOSE, y, x, CEED_REQUEST_IMMEDIATE);
46   CeedVectorView(x, "%12.8f", stdout);
47 
48   CeedVectorDestroy(&x);
49   CeedVectorDestroy(&y);
50   CeedElemRestrictionDestroy(&r);
51   CeedDestroy(&ceed);
52   return 0;
53 }
54