1 /// @file 2 /// Test creation, evaluation, and destruction for QFunction 3 /// \test Test creation, evaluation, and destruction for QFunction 4 #include "t401-qfunction.h" 5 6 #include <ceed.h> 7 #include <math.h> 8 9 int main(int argc, char **argv) { 10 Ceed ceed; 11 CeedVector in[16], out[16]; 12 CeedVector q_data, w, u, v; 13 CeedQFunction qf_setup, qf_mass; 14 CeedQFunctionContext ctx; 15 CeedInt q = 8; 16 CeedScalar v_true[q], ctx_data[5] = {1, 2, 3, 4, 5}; 17 18 CeedInit(argv[1], &ceed); 19 20 CeedVectorCreate(ceed, q, &w); 21 CeedVectorCreate(ceed, q, &u); 22 { 23 CeedScalar w_array[q], u_array[q]; 24 25 for (CeedInt i = 0; i < q; i++) { 26 CeedScalar x = 2. * i / (q - 1) - 1; 27 w_array[i] = 1 - x * x; 28 u_array[i] = 2 + 3 * x + 5 * x * x; 29 v_true[i] = w_array[i] * u_array[i]; 30 } 31 32 CeedVectorSetArray(w, CEED_MEM_HOST, CEED_COPY_VALUES, w_array); 33 CeedVectorSetArray(u, CEED_MEM_HOST, CEED_COPY_VALUES, u_array); 34 } 35 CeedVectorCreate(ceed, q, &v); 36 CeedVectorSetValue(v, 0); 37 CeedVectorCreate(ceed, q, &q_data); 38 CeedVectorSetValue(q_data, 0); 39 40 CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setup); 41 CeedQFunctionAddInput(qf_setup, "w", 1, CEED_EVAL_WEIGHT); 42 CeedQFunctionAddOutput(qf_setup, "q data", 1, CEED_EVAL_NONE); 43 { 44 in[0] = w; 45 out[0] = q_data; 46 CeedQFunctionApply(qf_setup, q, in, out); 47 } 48 49 CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_mass); 50 CeedQFunctionAddInput(qf_mass, "q data", 1, CEED_EVAL_NONE); 51 CeedQFunctionAddInput(qf_mass, "u", 1, CEED_EVAL_INTERP); 52 CeedQFunctionAddOutput(qf_mass, "v", 1, CEED_EVAL_INTERP); 53 54 CeedQFunctionContextCreate(ceed, &ctx); 55 CeedQFunctionContextSetData(ctx, CEED_MEM_HOST, CEED_USE_POINTER, sizeof(ctx_data), &ctx_data); 56 CeedQFunctionSetContext(qf_mass, ctx); 57 { 58 in[0] = w; 59 in[1] = u; 60 out[0] = v; 61 CeedQFunctionApply(qf_mass, q, in, out); 62 } 63 64 // Verify result 65 { 66 const CeedScalar *v_array; 67 68 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &v_array); 69 for (CeedInt i = 0; i < q; i++) { 70 if (fabs(ctx_data[4] * v_true[i] - v_array[i]) > 100. * CEED_EPSILON) { 71 // LCOV_EXCL_START 72 printf("[%" CeedInt_FMT "] v %f != v_true %f\n", i, v_array[i], ctx_data[4] * v_true[i]); 73 // LCOV_EXCL_STOP 74 } 75 } 76 CeedVectorRestoreArrayRead(v, &v_array); 77 } 78 79 CeedVectorDestroy(&w); 80 CeedVectorDestroy(&u); 81 CeedVectorDestroy(&v); 82 CeedVectorDestroy(&q_data); 83 CeedQFunctionDestroy(&qf_setup); 84 CeedQFunctionDestroy(&qf_mass); 85 CeedQFunctionContextDestroy(&ctx); 86 CeedDestroy(&ceed); 87 return 0; 88 } 89