xref: /libCEED/tests/t203-elemrestriction.c (revision 4fee36f0a30516a0b5ad51bf7eb3b32d83efd623)
14411cf47Sjeremylt /// @file
24411cf47Sjeremylt /// Test creation, use, and destruction of a blocked element restriction with multiple components in the lvector
34411cf47Sjeremylt /// \test Test creation, use, and destruction of a blocked element restriction with multiple components in the lvector
457c64913Sjeremylt #include <ceed.h>
50acb07cdSJeremy L Thompson #include <ceed/backend.h>
657c64913Sjeremylt 
757c64913Sjeremylt int main(int argc, char **argv) {
857c64913Sjeremylt   Ceed                ceed;
957c64913Sjeremylt   CeedVector          x, y;
10d1d35e2fSjeremylt   CeedInt             num_elem  = 8;
110acb07cdSJeremy L Thompson   CeedInt             elem_size = 2;
120acb07cdSJeremy L Thompson   CeedInt             num_blk   = 2;
13d1d35e2fSjeremylt   CeedInt             blk_size  = 5;
14d1d35e2fSjeremylt   CeedInt             num_comp  = 3;
150acb07cdSJeremy L Thompson   CeedInt             ind[elem_size * num_elem];
16*4fee36f0SJeremy L Thompson   CeedScalar          x_array[num_comp * (num_elem + 1)];
170acb07cdSJeremy L Thompson   CeedInt             layout[3];
18*4fee36f0SJeremy L Thompson   CeedElemRestriction elem_restriction;
1957c64913Sjeremylt 
2057c64913Sjeremylt   CeedInit(argv[1], &ceed);
21288c0443SJeremy L Thompson 
220acb07cdSJeremy L Thompson   CeedVectorCreate(ceed, num_comp * (num_elem + 1), &x);
230acb07cdSJeremy L Thompson   for (CeedInt i = 0; i < num_elem + 1; i++) {
24*4fee36f0SJeremy L Thompson     x_array[i + 0 * (num_elem + 1)] = 10 + i;
25*4fee36f0SJeremy L Thompson     x_array[i + 1 * (num_elem + 1)] = 20 + i;
26*4fee36f0SJeremy L Thompson     x_array[i + 2 * (num_elem + 1)] = 30 + i;
2757c64913Sjeremylt   }
28*4fee36f0SJeremy L Thompson   CeedVectorSetArray(x, CEED_MEM_HOST, CEED_USE_POINTER, x_array);
29*4fee36f0SJeremy L Thompson   CeedVectorCreate(ceed, num_comp * num_blk * blk_size * elem_size, &y);
300acb07cdSJeremy L Thompson 
31d1d35e2fSjeremylt   for (CeedInt i = 0; i < num_elem; i++) {
3257c64913Sjeremylt     ind[2 * i + 0] = i;
3357c64913Sjeremylt     ind[2 * i + 1] = i + 1;
3457c64913Sjeremylt   }
352b730f8bSJeremy L Thompson   CeedElemRestrictionCreateBlocked(ceed, num_elem, elem_size, blk_size, num_comp, num_elem + 1, num_comp * (num_elem + 1), CEED_MEM_HOST,
36*4fee36f0SJeremy L Thompson                                    CEED_USE_POINTER, ind, &elem_restriction);
3757c64913Sjeremylt 
3857c64913Sjeremylt   // NoTranspose
39*4fee36f0SJeremy L Thompson   CeedElemRestrictionApply(elem_restriction, CEED_NOTRANSPOSE, x, y, CEED_REQUEST_IMMEDIATE);
40*4fee36f0SJeremy L Thompson   {
41*4fee36f0SJeremy L Thompson     const CeedScalar *y_array;
42*4fee36f0SJeremy L Thompson 
43*4fee36f0SJeremy L Thompson     CeedVectorGetArrayRead(y, CEED_MEM_HOST, &y_array);
44*4fee36f0SJeremy L Thompson     CeedElemRestrictionGetELayout(elem_restriction, &layout);
452b730f8bSJeremy L Thompson     for (CeedInt i = 0; i < elem_size; i++) {     // Node
462b730f8bSJeremy L Thompson       for (CeedInt j = 0; j < num_comp; j++) {    // Component
470acb07cdSJeremy L Thompson         for (CeedInt k = 0; k < num_elem; k++) {  // Element
480acb07cdSJeremy L Thompson           CeedInt block = k / blk_size;
490acb07cdSJeremy L Thompson           CeedInt elem  = k % blk_size;
502b730f8bSJeremy L Thompson           CeedInt index = (i * blk_size + elem) * layout[0] + j * layout[1] * blk_size + block * layout[2] * blk_size;
51*4fee36f0SJeremy L Thompson           if (y_array[index] != x_array[ind[k * elem_size + i] + j * (num_elem + 1)]) {
520acb07cdSJeremy L Thompson             // LCOV_EXCL_START
53*4fee36f0SJeremy L Thompson             printf("Error in restricted array y[%" CeedInt_FMT "][%" CeedInt_FMT "][%" CeedInt_FMT "] = %f\n", i, j, k, (double)y_array[index]);
540acb07cdSJeremy L Thompson             // LCOV_EXCL_STOP
550acb07cdSJeremy L Thompson           }
562b730f8bSJeremy L Thompson         }
572b730f8bSJeremy L Thompson       }
582b730f8bSJeremy L Thompson     }
59*4fee36f0SJeremy L Thompson     CeedVectorRestoreArrayRead(y, &y_array);
60*4fee36f0SJeremy L Thompson   }
6157c64913Sjeremylt 
6257c64913Sjeremylt   // Transpose
630acb07cdSJeremy L Thompson   CeedVectorSetValue(x, 0);
64*4fee36f0SJeremy L Thompson   CeedElemRestrictionApply(elem_restriction, CEED_TRANSPOSE, y, x, CEED_REQUEST_IMMEDIATE);
65*4fee36f0SJeremy L Thompson   {
66*4fee36f0SJeremy L Thompson     const CeedScalar *x_array;
67*4fee36f0SJeremy L Thompson 
68*4fee36f0SJeremy L Thompson     CeedVectorGetArrayRead(x, CEED_MEM_HOST, &x_array);
690acb07cdSJeremy L Thompson     for (CeedInt i = 0; i < num_elem + 1; i++) {
700acb07cdSJeremy L Thompson       for (CeedInt j = 0; j < num_comp; j++) {
71*4fee36f0SJeremy L Thompson         if (x_array[i + j * (num_elem + 1)] != ((j + 1) * 10 + i) * (i > 0 && i < num_elem ? 2.0 : 1.0)) {
720acb07cdSJeremy L Thompson           // LCOV_EXCL_START
73*4fee36f0SJeremy L Thompson           printf("Error in restricted array x[%" CeedInt_FMT "][%" CeedInt_FMT "] = %f\n", j, i, (double)x_array[i + j * (num_elem + 1)]);
740acb07cdSJeremy L Thompson           // LCOV_EXCL_STOP
750acb07cdSJeremy L Thompson         }
760acb07cdSJeremy L Thompson       }
772b730f8bSJeremy L Thompson     }
78*4fee36f0SJeremy L Thompson     CeedVectorRestoreArrayRead(x, &x_array);
79*4fee36f0SJeremy L Thompson   }
8057c64913Sjeremylt 
8157c64913Sjeremylt   CeedVectorDestroy(&x);
8257c64913Sjeremylt   CeedVectorDestroy(&y);
83*4fee36f0SJeremy L Thompson   CeedElemRestrictionDestroy(&elem_restriction);
8457c64913Sjeremylt   CeedDestroy(&ceed);
8557c64913Sjeremylt   return 0;
8657c64913Sjeremylt }
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