xref: /libCEED/tests/t208-elemrestriction.c (revision 2b730f8b5a9c809740a0b3b302db43a719c636b1)
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];
14d1d35e2fSjeremylt   CeedScalar          a[num_elem + 1];
150acb07cdSJeremy L Thompson   const CeedScalar   *xx, *yy;
160acb07cdSJeremy L Thompson   CeedInt             layout[3];
17be9261b7Sjeremylt   CeedElemRestriction r;
18be9261b7Sjeremylt 
19be9261b7Sjeremylt   CeedInit(argv[1], &ceed);
20288c0443SJeremy L Thompson 
21d1d35e2fSjeremylt   CeedVectorCreate(ceed, num_elem + 1, &x);
22*2b730f8bSJeremy L Thompson   for (CeedInt i = 0; i < num_elem + 1; i++) a[i] = 10 + i;
23be9261b7Sjeremylt   CeedVectorSetArray(x, CEED_MEM_HOST, CEED_USE_POINTER, a);
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*2b730f8bSJeremy L Thompson   CeedElemRestrictionCreateBlocked(ceed, num_elem, elem_size, blk_size, 1, 1, num_elem + 1, CEED_MEM_HOST, CEED_USE_POINTER, ind, &r);
30d1d35e2fSjeremylt   CeedVectorCreate(ceed, blk_size * elem_size, &y);
31be9261b7Sjeremylt 
32be9261b7Sjeremylt   // NoTranspose
33*2b730f8bSJeremy L Thompson   CeedElemRestrictionApplyBlock(r, 1, CEED_NOTRANSPOSE, x, y, CEED_REQUEST_IMMEDIATE);
340acb07cdSJeremy L Thompson   CeedVectorGetArrayRead(y, CEED_MEM_HOST, &yy);
350acb07cdSJeremy L Thompson   CeedElemRestrictionGetELayout(r, &layout);
36*2b730f8bSJeremy L Thompson   for (CeedInt i = 0; i < elem_size; i++) {            // Node
37*2b730f8bSJeremy L Thompson     for (CeedInt j = 0; j < 1; j++) {                  // Component
380acb07cdSJeremy L Thompson       for (CeedInt k = blk_size; k < num_elem; k++) {  // Element
390acb07cdSJeremy L Thompson         CeedInt block = k / blk_size;
400acb07cdSJeremy L Thompson         CeedInt elem  = k % blk_size;
41*2b730f8bSJeremy L Thompson         CeedInt index = (i * blk_size + elem) * layout[0] + j * layout[1] * blk_size + block * layout[2] * blk_size - blk_size * elem_size;
42*2b730f8bSJeremy L Thompson         if (yy[index] != a[ind[k * elem_size + i]]) {
430acb07cdSJeremy L Thompson           // LCOV_EXCL_START
44*2b730f8bSJeremy L Thompson           printf("Error in restricted array y[%" CeedInt_FMT "][%" CeedInt_FMT "][%" CeedInt_FMT "] = %f\n", i, j, k, (double)yy[index]);
450acb07cdSJeremy L Thompson           // LCOV_EXCL_STOP
46db10e42cSDavid Medina         }
47*2b730f8bSJeremy L Thompson       }
48*2b730f8bSJeremy L Thompson     }
49*2b730f8bSJeremy L Thompson   }
500acb07cdSJeremy L Thompson   CeedVectorRestoreArrayRead(y, &yy);
51be9261b7Sjeremylt 
52be9261b7Sjeremylt   // Transpose
530acb07cdSJeremy L Thompson   CeedVectorSetValue(x, 0);
54*2b730f8bSJeremy L Thompson   CeedElemRestrictionApplyBlock(r, 1, CEED_TRANSPOSE, y, x, CEED_REQUEST_IMMEDIATE);
550acb07cdSJeremy L Thompson   CeedVectorGetArrayRead(x, CEED_MEM_HOST, &xx);
56*2b730f8bSJeremy L Thompson   for (CeedInt i = blk_size; i < num_elem + 1; i++) {
57*2b730f8bSJeremy L Thompson     if (xx[i] != (10 + i) * (i > blk_size && i < num_elem ? 2.0 : 1.0)) {
580acb07cdSJeremy L Thompson       // LCOV_EXCL_START
59*2b730f8bSJeremy L Thompson       printf("Error in restricted array x[%" CeedInt_FMT "] = %f\n", i, (double)xx[i]);
600acb07cdSJeremy L Thompson       // LCOV_EXCL_STOP
61*2b730f8bSJeremy L Thompson     }
62*2b730f8bSJeremy L Thompson   }
630acb07cdSJeremy L Thompson   CeedVectorRestoreArrayRead(x, &xx);
64be9261b7Sjeremylt 
65be9261b7Sjeremylt   CeedVectorDestroy(&x);
66be9261b7Sjeremylt   CeedVectorDestroy(&y);
67be9261b7Sjeremylt   CeedElemRestrictionDestroy(&r);
68be9261b7Sjeremylt   CeedDestroy(&ceed);
69be9261b7Sjeremylt   return 0;
70be9261b7Sjeremylt }
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