xref: /libCEED/tests/t400-qfunction.c (revision 2b730f8b5a9c809740a0b3b302db43a719c636b1)
14411cf47Sjeremylt /// @file
2d1d35e2fSjeremylt /// Test creation, evaluation, and destruction for QFunction
3d1d35e2fSjeremylt /// \test Test creation, evaluation, and destruction for QFunction
44d537eeaSYohann #include "t400-qfunction.h"
557c64913Sjeremylt 
6*2b730f8bSJeremy L Thompson #include <ceed.h>
7*2b730f8bSJeremy L Thompson 
857c64913Sjeremylt int main(int argc, char **argv) {
957c64913Sjeremylt   Ceed              ceed;
10aedaa0e5Sjeremylt   CeedVector        in[16], out[16];
11d1d35e2fSjeremylt   CeedVector        Q_data, W, U, V;
1257c64913Sjeremylt   CeedQFunction     qf_setup, qf_mass;
1357c64913Sjeremylt   CeedInt           Q = 8;
14aedaa0e5Sjeremylt   const CeedScalar *vv;
15aedaa0e5Sjeremylt   CeedScalar        w[Q], u[Q], v[Q];
1657c64913Sjeremylt 
1757c64913Sjeremylt   CeedInit(argv[1], &ceed);
18aedaa0e5Sjeremylt 
194d537eeaSYohann   CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setup);
2084e209c4Sjeremylt   CeedQFunctionAddInput(qf_setup, "w", 1, CEED_EVAL_WEIGHT);
2184e209c4Sjeremylt   CeedQFunctionAddOutput(qf_setup, "qdata", 1, CEED_EVAL_NONE);
2257c64913Sjeremylt 
234d537eeaSYohann   CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_mass);
2484e209c4Sjeremylt   CeedQFunctionAddInput(qf_mass, "qdata", 1, CEED_EVAL_NONE);
2557c64913Sjeremylt   CeedQFunctionAddInput(qf_mass, "u", 1, CEED_EVAL_INTERP);
2657c64913Sjeremylt   CeedQFunctionAddOutput(qf_mass, "v", 1, CEED_EVAL_INTERP);
2757c64913Sjeremylt 
2857c64913Sjeremylt   for (CeedInt i = 0; i < Q; i++) {
2957c64913Sjeremylt     CeedScalar x = 2. * i / (Q - 1) - 1;
3057c64913Sjeremylt     w[i]         = 1 - x * x;
3157c64913Sjeremylt     u[i]         = 2 + 3 * x + 5 * x * x;
3257c64913Sjeremylt     v[i]         = w[i] * u[i];
3357c64913Sjeremylt   }
34aedaa0e5Sjeremylt 
35aedaa0e5Sjeremylt   CeedVectorCreate(ceed, Q, &W);
36288c0443SJeremy L Thompson   CeedVectorSetArray(W, CEED_MEM_HOST, CEED_USE_POINTER, w);
37aedaa0e5Sjeremylt   CeedVectorCreate(ceed, Q, &U);
38288c0443SJeremy L Thompson   CeedVectorSetArray(U, CEED_MEM_HOST, CEED_USE_POINTER, u);
39aedaa0e5Sjeremylt   CeedVectorCreate(ceed, Q, &V);
40aedaa0e5Sjeremylt   CeedVectorSetValue(V, 0);
41d1d35e2fSjeremylt   CeedVectorCreate(ceed, Q, &Q_data);
42d1d35e2fSjeremylt   CeedVectorSetValue(Q_data, 0);
43aedaa0e5Sjeremylt 
4457c64913Sjeremylt   {
45aedaa0e5Sjeremylt     in[0]  = W;
46d1d35e2fSjeremylt     out[0] = Q_data;
4757c64913Sjeremylt     CeedQFunctionApply(qf_setup, Q, in, out);
4857c64913Sjeremylt   }
4957c64913Sjeremylt   {
50aedaa0e5Sjeremylt     in[0]  = W;
51aedaa0e5Sjeremylt     in[1]  = U;
52aedaa0e5Sjeremylt     out[0] = V;
5357c64913Sjeremylt     CeedQFunctionApply(qf_mass, Q, in, out);
5457c64913Sjeremylt   }
55aedaa0e5Sjeremylt 
56aedaa0e5Sjeremylt   CeedVectorGetArrayRead(V, CEED_MEM_HOST, &vv);
57*2b730f8bSJeremy L Thompson   for (CeedInt i = 0; i < Q; i++) {
58*2b730f8bSJeremy L Thompson     if (v[i] != vv[i]) printf("[%" CeedInt_FMT "] v %f != vv %f\n", i, v[i], vv[i]);
59*2b730f8bSJeremy L Thompson   }
60aedaa0e5Sjeremylt   CeedVectorRestoreArrayRead(V, &vv);
61aedaa0e5Sjeremylt 
62aedaa0e5Sjeremylt   CeedVectorDestroy(&W);
63aedaa0e5Sjeremylt   CeedVectorDestroy(&U);
64aedaa0e5Sjeremylt   CeedVectorDestroy(&V);
65d1d35e2fSjeremylt   CeedVectorDestroy(&Q_data);
6657c64913Sjeremylt   CeedQFunctionDestroy(&qf_setup);
6757c64913Sjeremylt   CeedQFunctionDestroy(&qf_mass);
6857c64913Sjeremylt   CeedDestroy(&ceed);
6957c64913Sjeremylt   return 0;
7057c64913Sjeremylt }
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