xref: /libCEED/tests/t208-elemrestriction.c (revision 288c044332e33f37503f09b6484fec9d0a55fba1)
1be9261b7Sjeremylt /// @file
2be9261b7Sjeremylt /// Test creation, use, and destruction of a blocked element restriction
3be9261b7Sjeremylt /// \test Test creation, use, and destruction of a blocked element restriction
4be9261b7Sjeremylt #include <ceed.h>
5be9261b7Sjeremylt 
6be9261b7Sjeremylt int main(int argc, char **argv) {
7be9261b7Sjeremylt   Ceed ceed;
8be9261b7Sjeremylt   CeedVector x, y;
9be9261b7Sjeremylt   CeedInt ne = 8;
10be9261b7Sjeremylt   CeedInt blksize = 5;
11be9261b7Sjeremylt   CeedInt ind[2*ne];
12be9261b7Sjeremylt   CeedScalar a[ne+1];
13be9261b7Sjeremylt   CeedElemRestriction r;
14be9261b7Sjeremylt 
15be9261b7Sjeremylt   CeedInit(argv[1], &ceed);
16*288c0443SJeremy L Thompson 
17be9261b7Sjeremylt   CeedVectorCreate(ceed, ne+1, &x);
18*288c0443SJeremy L Thompson   for (CeedInt i=0; i<ne+1; i++)
19*288c0443SJeremy L Thompson     a[i] = 10 + i;
20be9261b7Sjeremylt   CeedVectorSetArray(x, CEED_MEM_HOST, CEED_USE_POINTER, a);
21be9261b7Sjeremylt 
22be9261b7Sjeremylt   for (CeedInt i=0; i<ne; i++) {
23be9261b7Sjeremylt     ind[2*i+0] = i;
24be9261b7Sjeremylt     ind[2*i+1] = i+1;
25be9261b7Sjeremylt   }
26be9261b7Sjeremylt   CeedElemRestrictionCreateBlocked(ceed, ne, 2, blksize, ne+1, 1, CEED_MEM_HOST,
27be9261b7Sjeremylt                                    CEED_USE_POINTER, ind, &r);
28be9261b7Sjeremylt   CeedVectorCreate(ceed, blksize*2, &y);
29be9261b7Sjeremylt   CeedVectorSetValue(y, 0); // Allocates array
30be9261b7Sjeremylt 
31be9261b7Sjeremylt   // NoTranspose
32be9261b7Sjeremylt   CeedElemRestrictionApplyBlock(r, 1, CEED_NOTRANSPOSE, CEED_NOTRANSPOSE, x, y,
33be9261b7Sjeremylt                                 CEED_REQUEST_IMMEDIATE);
34be9261b7Sjeremylt   CeedVectorView(y, "%12.8f", stdout);
35be9261b7Sjeremylt 
36be9261b7Sjeremylt   // Transpose
37be9261b7Sjeremylt   CeedVectorGetArray(x, CEED_MEM_HOST, (CeedScalar **)&a);
38*288c0443SJeremy L Thompson   for (CeedInt i=0; i<ne+1; i++)
39*288c0443SJeremy L Thompson     a[i] = 0;
40be9261b7Sjeremylt   CeedVectorRestoreArray(x, (CeedScalar **)&a);
41be9261b7Sjeremylt   CeedElemRestrictionApplyBlock(r, 1, CEED_TRANSPOSE, CEED_NOTRANSPOSE, y, x,
42be9261b7Sjeremylt                                 CEED_REQUEST_IMMEDIATE);
43be9261b7Sjeremylt   CeedVectorView(x, "%12.8f", stdout);
44be9261b7Sjeremylt 
45be9261b7Sjeremylt   CeedVectorDestroy(&x);
46be9261b7Sjeremylt   CeedVectorDestroy(&y);
47be9261b7Sjeremylt   CeedElemRestrictionDestroy(&r);
48be9261b7Sjeremylt   CeedDestroy(&ceed);
49be9261b7Sjeremylt   return 0;
50be9261b7Sjeremylt }
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