xref: /libCEED/tests/t208-elemrestriction.c (revision 4fee36f0a30516a0b5ad51bf7eb3b32d83efd623)
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>
50acb07cdSJeremy L Thompson #include <ceed/backend.h>
6be9261b7Sjeremylt 
7be9261b7Sjeremylt int main(int argc, char **argv) {
8be9261b7Sjeremylt   Ceed                ceed;
9be9261b7Sjeremylt   CeedVector          x, y;
10d1d35e2fSjeremylt   CeedInt             num_elem  = 8;
11d1d35e2fSjeremylt   CeedInt             elem_size = 2;
120acb07cdSJeremy L Thompson   CeedInt             blk_size  = 5;
13d1d35e2fSjeremylt   CeedInt             ind[elem_size * num_elem];
14*4fee36f0SJeremy L Thompson   CeedScalar          x_array[num_elem + 1];
150acb07cdSJeremy L Thompson   CeedInt             layout[3];
16*4fee36f0SJeremy L Thompson   CeedElemRestriction elem_restriction;
17be9261b7Sjeremylt 
18be9261b7Sjeremylt   CeedInit(argv[1], &ceed);
19288c0443SJeremy L Thompson 
20d1d35e2fSjeremylt   CeedVectorCreate(ceed, num_elem + 1, &x);
21*4fee36f0SJeremy L Thompson   for (CeedInt i = 0; i < num_elem + 1; i++) x_array[i] = 10 + i;
22*4fee36f0SJeremy L Thompson   CeedVectorSetArray(x, CEED_MEM_HOST, CEED_USE_POINTER, x_array);
23*4fee36f0SJeremy L Thompson   CeedVectorCreate(ceed, blk_size * elem_size, &y);
24be9261b7Sjeremylt 
25d1d35e2fSjeremylt   for (CeedInt i = 0; i < num_elem; i++) {
260acb07cdSJeremy L Thompson     ind[2 * i + 0] = i;
270acb07cdSJeremy L Thompson     ind[2 * i + 1] = i + 1;
28be9261b7Sjeremylt   }
29*4fee36f0SJeremy L Thompson   CeedElemRestrictionCreateBlocked(ceed, num_elem, elem_size, blk_size, 1, 1, num_elem + 1, CEED_MEM_HOST, CEED_USE_POINTER, ind, &elem_restriction);
30be9261b7Sjeremylt 
31be9261b7Sjeremylt   // NoTranspose
32*4fee36f0SJeremy L Thompson   CeedElemRestrictionApplyBlock(elem_restriction, 1, CEED_NOTRANSPOSE, x, y, CEED_REQUEST_IMMEDIATE);
33*4fee36f0SJeremy L Thompson   {
34*4fee36f0SJeremy L Thompson     const CeedScalar *y_array;
35*4fee36f0SJeremy L Thompson 
36*4fee36f0SJeremy L Thompson     CeedVectorGetArrayRead(y, CEED_MEM_HOST, &y_array);
37*4fee36f0SJeremy L Thompson     CeedElemRestrictionGetELayout(elem_restriction, &layout);
382b730f8bSJeremy L Thompson     for (CeedInt i = 0; i < elem_size; i++) {            // Node
392b730f8bSJeremy L Thompson       for (CeedInt j = 0; j < 1; j++) {                  // Component
400acb07cdSJeremy L Thompson         for (CeedInt k = blk_size; k < num_elem; k++) {  // Element
410acb07cdSJeremy L Thompson           CeedInt block = k / blk_size;
420acb07cdSJeremy L Thompson           CeedInt elem  = k % blk_size;
432b730f8bSJeremy L Thompson           CeedInt index = (i * blk_size + elem) * layout[0] + j * layout[1] * blk_size + block * layout[2] * blk_size - blk_size * elem_size;
44*4fee36f0SJeremy L Thompson           if (y_array[index] != x_array[ind[k * elem_size + i]]) {
450acb07cdSJeremy L Thompson             // LCOV_EXCL_START
46*4fee36f0SJeremy L Thompson             printf("Error in restricted array y[%" CeedInt_FMT "][%" CeedInt_FMT "][%" CeedInt_FMT "] = %f\n", i, j, k, (double)y_array[index]);
470acb07cdSJeremy L Thompson             // LCOV_EXCL_STOP
48db10e42cSDavid Medina           }
492b730f8bSJeremy L Thompson         }
502b730f8bSJeremy L Thompson       }
512b730f8bSJeremy L Thompson     }
52*4fee36f0SJeremy L Thompson     CeedVectorRestoreArrayRead(y, &y_array);
53*4fee36f0SJeremy L Thompson   }
54be9261b7Sjeremylt 
55be9261b7Sjeremylt   // Transpose
560acb07cdSJeremy L Thompson   CeedVectorSetValue(x, 0);
57*4fee36f0SJeremy L Thompson   CeedElemRestrictionApplyBlock(elem_restriction, 1, CEED_TRANSPOSE, y, x, CEED_REQUEST_IMMEDIATE);
58*4fee36f0SJeremy L Thompson   {
59*4fee36f0SJeremy L Thompson     const CeedScalar *x_array;
60*4fee36f0SJeremy L Thompson 
61*4fee36f0SJeremy L Thompson     CeedVectorGetArrayRead(x, CEED_MEM_HOST, &x_array);
622b730f8bSJeremy L Thompson     for (CeedInt i = blk_size; i < num_elem + 1; i++) {
63*4fee36f0SJeremy L Thompson       if (x_array[i] != (10 + i) * (i > blk_size && i < num_elem ? 2.0 : 1.0)) {
640acb07cdSJeremy L Thompson         // LCOV_EXCL_START
65*4fee36f0SJeremy L Thompson         printf("Error in restricted array x[%" CeedInt_FMT "] = %f\n", i, (double)x_array[i]);
660acb07cdSJeremy L Thompson         // LCOV_EXCL_STOP
672b730f8bSJeremy L Thompson       }
682b730f8bSJeremy L Thompson     }
69*4fee36f0SJeremy L Thompson     CeedVectorRestoreArrayRead(x, &x_array);
70*4fee36f0SJeremy L Thompson   }
71be9261b7Sjeremylt 
72be9261b7Sjeremylt   CeedVectorDestroy(&x);
73be9261b7Sjeremylt   CeedVectorDestroy(&y);
74*4fee36f0SJeremy L Thompson   CeedElemRestrictionDestroy(&elem_restriction);
75be9261b7Sjeremylt   CeedDestroy(&ceed);
76be9261b7Sjeremylt   return 0;
77be9261b7Sjeremylt }
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