xref: /libCEED/tests/t401-qfunction.c (revision 732e4b6ca957a234aee506a90f934d9b944fcaa4)
11e35832bSjeremylt /// @file
2d1d35e2fSjeremylt /// Test creation, evaluation, and destruction for QFunction
3d1d35e2fSjeremylt /// \test Test creation, evaluation, and destruction for QFunction
41e35832bSjeremylt #include <ceed.h>
51e35832bSjeremylt #include <math.h>
61e35832bSjeremylt 
74d537eeaSYohann #include "t401-qfunction.h"
81e35832bSjeremylt 
91e35832bSjeremylt int main(int argc, char **argv) {
101e35832bSjeremylt   Ceed ceed;
111e35832bSjeremylt   CeedVector in[16], out[16];
12d1d35e2fSjeremylt   CeedVector Q_data, W, U, V;
131e35832bSjeremylt   CeedQFunction qf_setup, qf_mass;
14777ff853SJeremy L Thompson   CeedQFunctionContext ctx;
151e35832bSjeremylt   CeedInt Q = 8;
161e35832bSjeremylt   const CeedScalar *vv;
17*732e4b6cSJeremy L Thompson   CeedScalar w[Q], u[Q], v[Q], ctx_data[5] = {1, 2, 3, 4, 5};
181e35832bSjeremylt 
191e35832bSjeremylt   CeedInit(argv[1], &ceed);
201e35832bSjeremylt 
214d537eeaSYohann   CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setup);
2284e209c4Sjeremylt   CeedQFunctionAddInput(qf_setup, "w", 1, CEED_EVAL_WEIGHT);
2384e209c4Sjeremylt   CeedQFunctionAddOutput(qf_setup, "qdata", 1, CEED_EVAL_NONE);
241e35832bSjeremylt 
254d537eeaSYohann   CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_mass);
2684e209c4Sjeremylt   CeedQFunctionAddInput(qf_mass, "qdata", 1, CEED_EVAL_NONE);
271e35832bSjeremylt   CeedQFunctionAddInput(qf_mass, "u", 1, CEED_EVAL_INTERP);
281e35832bSjeremylt   CeedQFunctionAddOutput(qf_mass, "v", 1, CEED_EVAL_INTERP);
291e35832bSjeremylt 
30777ff853SJeremy L Thompson   CeedQFunctionContextCreate(ceed, &ctx);
31777ff853SJeremy L Thompson   CeedQFunctionContextSetData(ctx, CEED_MEM_HOST, CEED_USE_POINTER,
32*732e4b6cSJeremy L Thompson                               sizeof(ctx_data), &ctx_data);
33777ff853SJeremy L Thompson   CeedQFunctionSetContext(qf_mass, ctx);
341e35832bSjeremylt 
351e35832bSjeremylt   for (CeedInt i=0; i<Q; i++) {
361e35832bSjeremylt     CeedScalar x = 2.*i/(Q-1) - 1;
371e35832bSjeremylt     w[i] = 1 - x*x;
381e35832bSjeremylt     u[i] = 2 + 3*x + 5*x*x;
391e35832bSjeremylt     v[i] = w[i] * u[i];
401e35832bSjeremylt   }
411e35832bSjeremylt 
421e35832bSjeremylt   CeedVectorCreate(ceed, Q, &W);
43288c0443SJeremy L Thompson   CeedVectorSetArray(W, CEED_MEM_HOST, CEED_USE_POINTER, w);
441e35832bSjeremylt   CeedVectorCreate(ceed, Q, &U);
45288c0443SJeremy L Thompson   CeedVectorSetArray(U, CEED_MEM_HOST, CEED_USE_POINTER, u);
461e35832bSjeremylt   CeedVectorCreate(ceed, Q, &V);
471e35832bSjeremylt   CeedVectorSetValue(V, 0);
48d1d35e2fSjeremylt   CeedVectorCreate(ceed, Q, &Q_data);
49d1d35e2fSjeremylt   CeedVectorSetValue(Q_data, 0);
501e35832bSjeremylt 
511e35832bSjeremylt   {
521e35832bSjeremylt     in[0] = W;
53d1d35e2fSjeremylt     out[0] = Q_data;
541e35832bSjeremylt     CeedQFunctionApply(qf_setup, Q, in, out);
551e35832bSjeremylt   }
561e35832bSjeremylt   {
571e35832bSjeremylt     in[0] = W;
581e35832bSjeremylt     in[1] = U;
591e35832bSjeremylt     out[0] = V;
601e35832bSjeremylt     CeedQFunctionApply(qf_mass, Q, in, out);
611e35832bSjeremylt   }
621e35832bSjeremylt 
631e35832bSjeremylt   CeedVectorGetArrayRead(V, CEED_MEM_HOST, &vv);
64a2546046Sjeremylt   for (CeedInt i=0; i<Q; i++)
65*732e4b6cSJeremy L Thompson     if (fabs(ctx_data[4] * v[i] - vv[i]) > 100.*CEED_EPSILON)
66a2546046Sjeremylt       // LCOV_EXCL_START
671e35832bSjeremylt       printf("[%d] v %f != vv %f\n",i, v[i], vv[i]);
68de996c55Sjeremylt   // LCOV_EXCL_STOP
691e35832bSjeremylt   CeedVectorRestoreArrayRead(V, &vv);
701e35832bSjeremylt 
711e35832bSjeremylt   CeedVectorDestroy(&W);
721e35832bSjeremylt   CeedVectorDestroy(&U);
731e35832bSjeremylt   CeedVectorDestroy(&V);
74d1d35e2fSjeremylt   CeedVectorDestroy(&Q_data);
751e35832bSjeremylt   CeedQFunctionDestroy(&qf_setup);
761e35832bSjeremylt   CeedQFunctionDestroy(&qf_mass);
77777ff853SJeremy L Thompson   CeedQFunctionContextDestroy(&ctx);
781e35832bSjeremylt   CeedDestroy(&ceed);
791e35832bSjeremylt   return 0;
801e35832bSjeremylt }
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