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 CeedVectorCreate(ceed, num_points, &x); 18 CeedVectorSetValue(x, 0.0); 19 20 { 21 CeedInt offset = num_elem + 1; 22 CeedInt point_index = num_elem; 23 24 for (CeedInt i = 0; i < num_elem; i++) { 25 CeedInt num_points_in_elem = (i + 1) % num_elem + 1; 26 27 ind[i] = offset; 28 for (CeedInt j = 0; j < num_points_in_elem; j++) { 29 ind[offset + j] = point_index; 30 point_index = (point_index + 1) % num_points; 31 } 32 offset += num_points_in_elem; 33 } 34 ind[num_elem] = offset; 35 } 36 CeedElemRestrictionCreateAtPoints(ceed, num_elem, num_points, 1, num_points, CEED_MEM_HOST, CEED_COPY_VALUES, ind, &elem_restriction); 37 38 { 39 CeedInt max_points; 40 41 CeedElemRestrictionGetMaxPointsInElement(elem_restriction, &max_points); 42 CeedVectorCreate(ceed, max_points, &y); 43 CeedVectorSetValue(y, 1.0); 44 } 45 46 { 47 for (CeedInt i = 0; i < num_elem; i++) { 48 CeedInt point_index = num_elem; 49 const CeedScalar *read_array; 50 51 CeedVectorSetValue(x, 0.0); 52 CeedElemRestrictionApplyAtPointsInElement(elem_restriction, i, CEED_TRANSPOSE, y, x, CEED_REQUEST_IMMEDIATE); 53 54 CeedVectorGetArrayRead(x, CEED_MEM_HOST, &read_array); 55 for (CeedInt j = 0; j < num_elem; j++) { 56 CeedInt num_points_in_elem = (j + 1) % num_elem + 1; 57 58 for (CeedInt k = 0; k < num_points_in_elem; k++) { 59 if (fabs(read_array[point_index] - (i == j ? 1.0 : 0.0)) > 10 * CEED_EPSILON) { 60 // LCOV_EXCL_START 61 printf("Error in restricted array x[%" CeedInt_FMT "] = %f\n", point_index, (CeedScalar)read_array[point_index]); 62 // LCOV_EXCL_STOP 63 } 64 point_index = (point_index + 1) % num_points; 65 } 66 } 67 CeedVectorRestoreArrayRead(x, &read_array); 68 } 69 } 70 71 CeedVectorDestroy(&x); 72 CeedVectorDestroy(&y); 73 CeedElemRestrictionDestroy(&elem_restriction); 74 CeedDestroy(&ceed); 75 return 0; 76 } 77