xref: /libCEED/tests/t202-elemrestriction.c (revision 2b730f8b5a9c809740a0b3b302db43a719c636b1)
14411cf47Sjeremylt /// @file
24411cf47Sjeremylt /// Test creation, use, and destruction of a blocked element restriction
34411cf47Sjeremylt /// \test Test creation, use, and destruction of a blocked element restriction
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;
140acb07cdSJeremy L Thompson   CeedInt             ind[elem_size * num_elem];
15d1d35e2fSjeremylt   CeedScalar          a[num_elem + 1];
160acb07cdSJeremy L Thompson   const CeedScalar   *xx, *yy;
170acb07cdSJeremy L Thompson   CeedInt             layout[3];
1857c64913Sjeremylt   CeedElemRestriction r;
1957c64913Sjeremylt 
2057c64913Sjeremylt   CeedInit(argv[1], &ceed);
21288c0443SJeremy L Thompson 
22d1d35e2fSjeremylt   CeedVectorCreate(ceed, num_elem + 1, &x);
23*2b730f8bSJeremy L Thompson   for (CeedInt i = 0; i < num_elem + 1; i++) a[i] = 10 + i;
2457c64913Sjeremylt   CeedVectorSetArray(x, CEED_MEM_HOST, CEED_USE_POINTER, a);
2557c64913Sjeremylt 
26d1d35e2fSjeremylt   for (CeedInt i = 0; i < num_elem; i++) {
2757c64913Sjeremylt     ind[2 * i + 0] = i;
2857c64913Sjeremylt     ind[2 * i + 1] = i + 1;
2957c64913Sjeremylt   }
30*2b730f8bSJeremy L Thompson   CeedElemRestrictionCreateBlocked(ceed, num_elem, elem_size, blk_size, 1, 1, num_elem + 1, CEED_MEM_HOST, CEED_USE_POINTER, ind, &r);
310acb07cdSJeremy L Thompson   CeedVectorCreate(ceed, num_blk * blk_size * elem_size, &y);
3257c64913Sjeremylt 
3357c64913Sjeremylt   // NoTranspose
34a8d32208Sjeremylt   CeedElemRestrictionApply(r, CEED_NOTRANSPOSE, x, y, CEED_REQUEST_IMMEDIATE);
350acb07cdSJeremy L Thompson   CeedVectorGetArrayRead(y, CEED_MEM_HOST, &yy);
360acb07cdSJeremy L Thompson   CeedElemRestrictionGetELayout(r, &layout);
37*2b730f8bSJeremy L Thompson   for (CeedInt i = 0; i < elem_size; i++) {     // Node
38*2b730f8bSJeremy L Thompson     for (CeedInt j = 0; j < 1; j++) {           // Component
390acb07cdSJeremy L Thompson       for (CeedInt k = 0; k < num_elem; k++) {  // Element
400acb07cdSJeremy L Thompson         CeedInt block = k / blk_size;
410acb07cdSJeremy L Thompson         CeedInt elem  = k % blk_size;
42*2b730f8bSJeremy L Thompson         CeedInt index = (i * blk_size + elem) * layout[0] + j * layout[1] * blk_size + block * layout[2] * blk_size;
43*2b730f8bSJeremy L Thompson         if (yy[index] != a[ind[k * elem_size + i]]) {
440acb07cdSJeremy L Thompson           // LCOV_EXCL_START
45*2b730f8bSJeremy L Thompson           printf("Error in restricted array y[%" CeedInt_FMT "][%" CeedInt_FMT "][%" CeedInt_FMT "] = %f\n", i, j, k, (double)yy[index]);
460acb07cdSJeremy L Thompson           // LCOV_EXCL_STOP
470acb07cdSJeremy L Thompson         }
48*2b730f8bSJeremy L Thompson       }
49*2b730f8bSJeremy L Thompson     }
50*2b730f8bSJeremy L Thompson   }
510acb07cdSJeremy L Thompson   CeedVectorRestoreArrayRead(y, &yy);
5257c64913Sjeremylt 
5357c64913Sjeremylt   // Transpose
540acb07cdSJeremy L Thompson   CeedVectorSetValue(x, 0);
55a8d32208Sjeremylt   CeedElemRestrictionApply(r, CEED_TRANSPOSE, y, x, CEED_REQUEST_IMMEDIATE);
560acb07cdSJeremy L Thompson   CeedVectorGetArrayRead(x, CEED_MEM_HOST, &xx);
57*2b730f8bSJeremy L Thompson   for (CeedInt i = 0; i < num_elem + 1; i++) {
58*2b730f8bSJeremy L Thompson     if (xx[i] != (10 + i) * (i > 0 && i < num_elem ? 2.0 : 1.0)) printf("Error in restricted array x[%" CeedInt_FMT "] = %f\n", i, (double)xx[i]);
59*2b730f8bSJeremy L Thompson   }
600acb07cdSJeremy L Thompson   CeedVectorRestoreArrayRead(x, &xx);
6157c64913Sjeremylt 
6257c64913Sjeremylt   CeedVectorDestroy(&x);
6357c64913Sjeremylt   CeedVectorDestroy(&y);
6457c64913Sjeremylt   CeedElemRestrictionDestroy(&r);
6557c64913Sjeremylt   CeedDestroy(&ceed);
6657c64913Sjeremylt   return 0;
6757c64913Sjeremylt }
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