xref: /libCEED/tests/t401-qfunction.c (revision 2b730f8b5a9c809740a0b3b302db43a719c636b1)
11e35832bSjeremylt /// @file
2d1d35e2fSjeremylt /// Test creation, evaluation, and destruction for QFunction
3d1d35e2fSjeremylt /// \test Test creation, evaluation, and destruction for QFunction
4*2b730f8bSJeremy L Thompson #include "t401-qfunction.h"
5*2b730f8bSJeremy L Thompson 
61e35832bSjeremylt #include <ceed.h>
71e35832bSjeremylt #include <math.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;
17732e4b6cSJeremy 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);
31*2b730f8bSJeremy L Thompson   CeedQFunctionContextSetData(ctx, CEED_MEM_HOST, CEED_USE_POINTER, sizeof(ctx_data), &ctx_data);
32777ff853SJeremy L Thompson   CeedQFunctionSetContext(qf_mass, ctx);
331e35832bSjeremylt 
341e35832bSjeremylt   for (CeedInt i = 0; i < Q; i++) {
351e35832bSjeremylt     CeedScalar x = 2. * i / (Q - 1) - 1;
361e35832bSjeremylt     w[i]         = 1 - x * x;
371e35832bSjeremylt     u[i]         = 2 + 3 * x + 5 * x * x;
381e35832bSjeremylt     v[i]         = w[i] * u[i];
391e35832bSjeremylt   }
401e35832bSjeremylt 
411e35832bSjeremylt   CeedVectorCreate(ceed, Q, &W);
42288c0443SJeremy L Thompson   CeedVectorSetArray(W, CEED_MEM_HOST, CEED_USE_POINTER, w);
431e35832bSjeremylt   CeedVectorCreate(ceed, Q, &U);
44288c0443SJeremy L Thompson   CeedVectorSetArray(U, CEED_MEM_HOST, CEED_USE_POINTER, u);
451e35832bSjeremylt   CeedVectorCreate(ceed, Q, &V);
461e35832bSjeremylt   CeedVectorSetValue(V, 0);
47d1d35e2fSjeremylt   CeedVectorCreate(ceed, Q, &Q_data);
48d1d35e2fSjeremylt   CeedVectorSetValue(Q_data, 0);
491e35832bSjeremylt 
501e35832bSjeremylt   {
511e35832bSjeremylt     in[0]  = W;
52d1d35e2fSjeremylt     out[0] = Q_data;
531e35832bSjeremylt     CeedQFunctionApply(qf_setup, Q, in, out);
541e35832bSjeremylt   }
551e35832bSjeremylt   {
561e35832bSjeremylt     in[0]  = W;
571e35832bSjeremylt     in[1]  = U;
581e35832bSjeremylt     out[0] = V;
591e35832bSjeremylt     CeedQFunctionApply(qf_mass, Q, in, out);
601e35832bSjeremylt   }
611e35832bSjeremylt 
621e35832bSjeremylt   CeedVectorGetArrayRead(V, CEED_MEM_HOST, &vv);
63*2b730f8bSJeremy L Thompson   for (CeedInt i = 0; i < Q; i++) {
64*2b730f8bSJeremy L Thompson     if (fabs(ctx_data[4] * v[i] - vv[i]) > 100. * CEED_EPSILON) printf("[%" CeedInt_FMT "] v %f != vv %f\n", i, v[i], vv[i]);
65*2b730f8bSJeremy L Thompson   }
661e35832bSjeremylt   CeedVectorRestoreArrayRead(V, &vv);
671e35832bSjeremylt 
681e35832bSjeremylt   CeedVectorDestroy(&W);
691e35832bSjeremylt   CeedVectorDestroy(&U);
701e35832bSjeremylt   CeedVectorDestroy(&V);
71d1d35e2fSjeremylt   CeedVectorDestroy(&Q_data);
721e35832bSjeremylt   CeedQFunctionDestroy(&qf_setup);
731e35832bSjeremylt   CeedQFunctionDestroy(&qf_mass);
74777ff853SJeremy L Thompson   CeedQFunctionContextDestroy(&ctx);
751e35832bSjeremylt   CeedDestroy(&ceed);
761e35832bSjeremylt   return 0;
771e35832bSjeremylt }
78