xref: /libCEED/tests/t213-elemrestriction.c (revision 0acb07cd915a46efccf10dc99d60f8eab5d4016d)
10036de2cSjeremylt /// @file
20036de2cSjeremylt /// Test creation, use, and destruction of a blocked element restriction with multiple components in the lvector, and libCEED owns ind pointer
30036de2cSjeremylt /// \test Test creation, use, and destruction of a blocked element restriction with multiple components in the lvector, and libCEED owns ind pointer
40036de2cSjeremylt #include <ceed.h>
5*0acb07cdSJeremy L Thompson #include <ceed/backend.h>
6*0acb07cdSJeremy L Thompson #include <stdlib.h>
7*0acb07cdSJeremy L Thompson #include <string.h>
80036de2cSjeremylt 
90036de2cSjeremylt int main(int argc, char **argv) {
100036de2cSjeremylt   Ceed ceed;
110036de2cSjeremylt   CeedVector x, y;
12d1d35e2fSjeremylt   CeedInt num_elem = 8;
13*0acb07cdSJeremy L Thompson   CeedInt elem_size = 2;
14*0acb07cdSJeremy L Thompson   CeedInt num_blk = 2;
15d1d35e2fSjeremylt   CeedInt blk_size = 5;
16d1d35e2fSjeremylt   CeedInt num_comp = 3;
17*0acb07cdSJeremy L Thompson   CeedInt ind[elem_size*num_elem];
18*0acb07cdSJeremy L Thompson   CeedInt *ceed_ind = malloc(sizeof(CeedInt)*elem_size*num_elem);
19d1d35e2fSjeremylt   CeedScalar a[num_comp*(num_elem + 1)];
20*0acb07cdSJeremy L Thompson   const CeedScalar *xx, *yy;
21*0acb07cdSJeremy L Thompson   CeedInt layout[3];
220036de2cSjeremylt   CeedElemRestriction r;
230036de2cSjeremylt 
240036de2cSjeremylt   CeedInit(argv[1], &ceed);
250036de2cSjeremylt 
26*0acb07cdSJeremy L Thompson   CeedVectorCreate(ceed, num_comp*(num_elem+1), &x);
27*0acb07cdSJeremy L Thompson   for (CeedInt i=0; i<num_elem+1; i++) {
28d1d35e2fSjeremylt     a[i+0*(num_elem+1)] = 10 + i;
29d1d35e2fSjeremylt     a[i+1*(num_elem+1)] = 20 + i;
30d1d35e2fSjeremylt     a[i+2*(num_elem+1)] = 30 + i;
310036de2cSjeremylt   }
320036de2cSjeremylt   CeedVectorSetArray(x, CEED_MEM_HOST, CEED_USE_POINTER, a);
33*0acb07cdSJeremy L Thompson 
34d1d35e2fSjeremylt   for (CeedInt i=0; i<num_elem; i++) {
350036de2cSjeremylt     ind[2*i+0] = i;
360036de2cSjeremylt     ind[2*i+1] = i+1;
370036de2cSjeremylt   }
38*0acb07cdSJeremy L Thompson   memcpy(ceed_ind, ind, sizeof(CeedInt)*elem_size*num_elem);
39*0acb07cdSJeremy L Thompson   CeedElemRestrictionCreateBlocked(ceed, num_elem, elem_size, blk_size, num_comp,
40*0acb07cdSJeremy L Thompson                                    num_elem+1, num_comp*(num_elem+1), CEED_MEM_HOST,
41*0acb07cdSJeremy L Thompson                                    CEED_OWN_POINTER, ceed_ind, &r);
42*0acb07cdSJeremy L Thompson   CeedVectorCreate(ceed, num_comp*num_blk*blk_size*elem_size, &y);
430036de2cSjeremylt   CeedVectorSetValue(y, 0); // Allocates array
440036de2cSjeremylt 
450036de2cSjeremylt   // NoTranspose
460036de2cSjeremylt   CeedElemRestrictionApply(r, CEED_NOTRANSPOSE, x, y, CEED_REQUEST_IMMEDIATE);
47*0acb07cdSJeremy L Thompson   CeedVectorGetArrayRead(y, CEED_MEM_HOST, &yy);
48*0acb07cdSJeremy L Thompson   CeedElemRestrictionGetELayout(r, &layout);
49*0acb07cdSJeremy L Thompson   for (CeedInt i=0; i<elem_size; i++)      // Node
50*0acb07cdSJeremy L Thompson     for (CeedInt j=0; j<num_comp; j++)     // Component
51*0acb07cdSJeremy L Thompson       for (CeedInt k=0; k<num_elem; k++) { // Element
52*0acb07cdSJeremy L Thompson         CeedInt block = k / blk_size;
53*0acb07cdSJeremy L Thompson         CeedInt elem = k % blk_size;
54*0acb07cdSJeremy L Thompson         CeedInt index = (i*blk_size+elem)*layout[0] + j*layout[1]*blk_size +
55*0acb07cdSJeremy L Thompson                         block*layout[2]*blk_size;
56*0acb07cdSJeremy L Thompson         if (yy[index] != a[ind[k*elem_size + i]+j*(num_elem+1)])
57*0acb07cdSJeremy L Thompson           // LCOV_EXCL_START
58*0acb07cdSJeremy L Thompson           printf("Error in restricted array y[%d][%d][%d] = %f\n",
59*0acb07cdSJeremy L Thompson                  i, j, k, (double)yy[index]);
60*0acb07cdSJeremy L Thompson         // LCOV_EXCL_STOP
61*0acb07cdSJeremy L Thompson       }
62*0acb07cdSJeremy L Thompson   CeedVectorRestoreArrayRead(y, &yy);
630036de2cSjeremylt 
640036de2cSjeremylt   // Transpose
65*0acb07cdSJeremy L Thompson   CeedVectorSetValue(x, 0);
660036de2cSjeremylt   CeedElemRestrictionApply(r, CEED_TRANSPOSE, y, x, CEED_REQUEST_IMMEDIATE);
67*0acb07cdSJeremy L Thompson   CeedVectorGetArrayRead(x, CEED_MEM_HOST, &xx);
68*0acb07cdSJeremy L Thompson   for (CeedInt i=0; i<num_elem+1; i++) {
69*0acb07cdSJeremy L Thompson     for (CeedInt j=0; j<num_comp; j++) {
70*0acb07cdSJeremy L Thompson       if (xx[i+j*(num_elem+1)] != ((j+1)*10+i)*(i > 0 && i < num_elem ? 2.0 : 1.0))
71*0acb07cdSJeremy L Thompson         // LCOV_EXCL_START
72*0acb07cdSJeremy L Thompson         printf("Error in restricted array x[%d][%d] = %f\n",
73*0acb07cdSJeremy L Thompson                j, i, (double)xx[i+j*(num_elem+1)]);
74*0acb07cdSJeremy L Thompson       // LCOV_EXCL_STOP
75*0acb07cdSJeremy L Thompson     }
76*0acb07cdSJeremy L Thompson   }
77*0acb07cdSJeremy L Thompson   CeedVectorRestoreArrayRead(x, &xx);
780036de2cSjeremylt 
790036de2cSjeremylt   CeedVectorDestroy(&x);
800036de2cSjeremylt   CeedVectorDestroy(&y);
810036de2cSjeremylt   CeedElemRestrictionDestroy(&r);
820036de2cSjeremylt   CeedDestroy(&ceed);
830036de2cSjeremylt   return 0;
840036de2cSjeremylt }
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