1 /// @file 2 /// Test creation, transpose use, and destruction of an element restriction at points for single elements 3 /// \test Test creation, transpose use, and destruction of an element restriction at points for single elements 4 #include <ceed.h> 5 #include <math.h> 6 #include <stdio.h> 7 8 int main(int argc, char **argv) { 9 Ceed ceed; 10 CeedInt num_elem = 3, num_points = num_elem * 2; 11 CeedInt ind[(num_elem + 1) + num_points]; 12 CeedVector x, y; 13 CeedElemRestriction elem_restriction; 14 15 CeedInit(argv[1], &ceed); 16 17 { 18 CeedInt offset = num_elem + 1; 19 CeedInt point_index = num_elem; 20 21 for (CeedInt i = 0; i < num_elem; i++) { 22 CeedInt num_points_in_elem = (i + 1) % num_elem + 1; 23 24 ind[i] = offset; 25 for (CeedInt j = 0; j < num_points_in_elem; j++) { 26 ind[offset + j] = point_index; 27 point_index = (point_index + 1) % num_points; 28 } 29 offset += num_points_in_elem; 30 } 31 ind[num_elem] = offset; 32 } 33 CeedElemRestrictionCreateAtPoints(ceed, num_elem, num_points, 1, num_points, CEED_MEM_HOST, CEED_COPY_VALUES, ind, &elem_restriction); 34 35 CeedElemRestrictionCreateVector(elem_restriction, &x, NULL); 36 CeedVectorSetValue(x, 0.0); 37 { 38 CeedInt max_points; 39 40 CeedElemRestrictionGetMaxPointsInElement(elem_restriction, &max_points); 41 CeedVectorCreate(ceed, max_points, &y); 42 CeedVectorSetValue(y, 1.0); 43 } 44 45 { 46 for (CeedInt i = 0; i < num_elem; i++) { 47 CeedInt point_index = num_elem; 48 const CeedScalar *read_array; 49 50 CeedVectorSetValue(x, 0.0); 51 CeedElemRestrictionApplyAtPointsInElement(elem_restriction, i, CEED_TRANSPOSE, y, x, CEED_REQUEST_IMMEDIATE); 52 53 CeedVectorGetArrayRead(x, CEED_MEM_HOST, &read_array); 54 for (CeedInt j = 0; j < num_elem; j++) { 55 CeedInt num_points_in_elem = (j + 1) % num_elem + 1; 56 57 for (CeedInt k = 0; k < num_points_in_elem; k++) { 58 if (fabs(read_array[point_index] - (i == j ? 1.0 : 0.0)) > 10 * CEED_EPSILON) { 59 // LCOV_EXCL_START 60 printf("Error in restricted array x[%" CeedInt_FMT "] = %f\n", point_index, (CeedScalar)read_array[point_index]); 61 // LCOV_EXCL_STOP 62 } 63 point_index = (point_index + 1) % num_points; 64 } 65 } 66 CeedVectorRestoreArrayRead(x, &read_array); 67 } 68 } 69 70 CeedVectorDestroy(&x); 71 CeedVectorDestroy(&y); 72 CeedElemRestrictionDestroy(&elem_restriction); 73 CeedDestroy(&ceed); 74 return 0; 75 } 76