xref: /libCEED/tests/t207-elemrestriction.c (revision 73d2608534f156b5cd04d2be8b81b970eca98867)
1*73d26085Sjeremylt /// @file
2*73d26085Sjeremylt /// Test creation, transpose use, and destruction of an interlaced multicomponent element restriction
3*73d26085Sjeremylt /// \test Test creation, transpose use, and destruction of an interlaced multicomponent element restriction
4*73d26085Sjeremylt #include <ceed.h>
5*73d26085Sjeremylt 
6*73d26085Sjeremylt int main(int argc, char **argv) {
7*73d26085Sjeremylt   Ceed ceed;
8*73d26085Sjeremylt   CeedVector x, y;
9*73d26085Sjeremylt   CeedInt ne = 5, mult;
10*73d26085Sjeremylt   CeedInt ind[2*ne];
11*73d26085Sjeremylt   CeedScalar a[2*(ne*2)];
12*73d26085Sjeremylt   const CeedScalar *yy;
13*73d26085Sjeremylt   CeedElemRestriction r;
14*73d26085Sjeremylt 
15*73d26085Sjeremylt   CeedInit(argv[1], &ceed);
16*73d26085Sjeremylt 
17*73d26085Sjeremylt   // Setup
18*73d26085Sjeremylt   CeedVectorCreate(ceed, 2*(ne*2), &x);
19*73d26085Sjeremylt   for (CeedInt i=0; i<ne; i++) {
20*73d26085Sjeremylt     for (CeedInt n=0; n<2; n++) {
21*73d26085Sjeremylt         a[i*4+n] = 10+(2*i+n+1)/2;
22*73d26085Sjeremylt         a[i*4+n+2] = 20+(2*i+n+1)/2;
23*73d26085Sjeremylt     }
24*73d26085Sjeremylt   }
25*73d26085Sjeremylt   CeedVectorSetArray(x, CEED_MEM_HOST, CEED_USE_POINTER, a);
26*73d26085Sjeremylt 
27*73d26085Sjeremylt   for (CeedInt i=0; i<ne; i++) {
28*73d26085Sjeremylt     ind[2*i+0] = i;
29*73d26085Sjeremylt     ind[2*i+1] = i+1;
30*73d26085Sjeremylt   }
31*73d26085Sjeremylt   CeedElemRestrictionCreate(ceed, ne, 2, ne+1, 2, CEED_MEM_HOST, CEED_USE_POINTER,
32*73d26085Sjeremylt                             ind, &r);
33*73d26085Sjeremylt   CeedVectorCreate(ceed, 2*(ne+1), &y);
34*73d26085Sjeremylt   CeedVectorSetValue(y, 0); // Allocates array
35*73d26085Sjeremylt 
36*73d26085Sjeremylt   // Restrict
37*73d26085Sjeremylt   CeedElemRestrictionApply(r, CEED_TRANSPOSE, CEED_TRANSPOSE, x, y,
38*73d26085Sjeremylt                            CEED_REQUEST_IMMEDIATE);
39*73d26085Sjeremylt 
40*73d26085Sjeremylt   // Check
41*73d26085Sjeremylt   CeedVectorGetArrayRead(y, CEED_MEM_HOST, &yy);
42*73d26085Sjeremylt   for (CeedInt i=0; i<ne+1; i++) {
43*73d26085Sjeremylt     mult = i>0&&i<ne ? 2 : 1;
44*73d26085Sjeremylt     if (yy[2*i] != (10+i)*mult)
45*73d26085Sjeremylt        printf("Error in restricted array y[%d] = %f != %f\n",
46*73d26085Sjeremylt                        2*i, (double)yy[2*i], (10.+i)*mult);
47*73d26085Sjeremylt     if (yy[2*i+1] != (20+i)*mult)
48*73d26085Sjeremylt       printf("Error in restricted array y[%d] = %f != %f\n",
49*73d26085Sjeremylt                        2*i+1, (double)yy[2*i+1], (20.+i)*mult);
50*73d26085Sjeremylt   }
51*73d26085Sjeremylt 
52*73d26085Sjeremylt   CeedVectorRestoreArrayRead(y, &yy);
53*73d26085Sjeremylt   CeedVectorDestroy(&x);
54*73d26085Sjeremylt   CeedVectorDestroy(&y);
55*73d26085Sjeremylt   CeedElemRestrictionDestroy(&r);
56*73d26085Sjeremylt   CeedDestroy(&ceed);
57*73d26085Sjeremylt   return 0;
58*73d26085Sjeremylt }
59