1 /// @file 2 /// Test pointwise multiplication of a pair of vectors 3 /// \test Test pointwise multiplication of a pair of vectors 4 #include <ceed.h> 5 #include <math.h> 6 #include <stdio.h> 7 8 int main(int argc, char **argv) { 9 Ceed ceed; 10 CeedVector x, y, w; 11 CeedInt len = 10; 12 const CeedScalar *read_array; 13 14 CeedInit(argv[1], &ceed); 15 16 CeedVectorCreate(ceed, len, &x); 17 CeedVectorCreate(ceed, len, &y); 18 CeedVectorCreate(ceed, len, &w); 19 { 20 CeedScalar array[len]; 21 22 for (CeedInt i = 0; i < len; i++) array[i] = i; 23 CeedVectorSetArray(x, CEED_MEM_HOST, CEED_COPY_VALUES, array); 24 CeedVectorSetArray(y, CEED_MEM_HOST, CEED_COPY_VALUES, array); 25 } 26 27 // Test multiplying two vectors into third 28 CeedVectorPointwiseMult(w, x, y); 29 CeedVectorGetArrayRead(w, CEED_MEM_HOST, &read_array); 30 for (CeedInt i = 0; i < len; i++) { 31 if (fabs(read_array[i] - i * i) > 1e-14) { 32 // LCOV_EXCL_START 33 printf("Error in w = x .* y at index %" CeedInt_FMT ", computed: %f actual: %f\n", i, read_array[i], 1.0 * i * i); 34 // LCOV_EXCL_STOP 35 } 36 } 37 CeedVectorRestoreArrayRead(w, &read_array); 38 39 // Test multiplying two vectors into one of the two 40 CeedVectorPointwiseMult(w, w, y); 41 CeedVectorGetArrayRead(w, CEED_MEM_HOST, &read_array); 42 for (CeedInt i = 0; i < len; i++) { 43 if (fabs(read_array[i] - i * i * i) > 1e-14) { 44 // LCOV_EXCL_START 45 printf("Error in w = w .* y at index %" CeedInt_FMT ", computed: %f actual: %f\n", i, read_array[i], 1.0 * i * i * i); 46 // LCOV_EXCL_STOP 47 } 48 } 49 CeedVectorRestoreArrayRead(w, &read_array); 50 51 // Test multiplying two vectors into one of the two 52 CeedVectorPointwiseMult(w, x, w); 53 CeedVectorGetArrayRead(w, CEED_MEM_HOST, &read_array); 54 for (CeedInt i = 0; i < len; i++) { 55 if (fabs(read_array[i] - i * i * i * i) > 1e-14) { 56 // LCOV_EXCL_START 57 printf("Error in w = x .* w at index %" CeedInt_FMT ", computed: %f actual: %f\n", i, read_array[i], 1.0 * i * i * i * i); 58 // LCOV_EXCL_STOP 59 } 60 } 61 CeedVectorRestoreArrayRead(w, &read_array); 62 63 // Test multiplying vector by itself and putting product into self 64 { 65 // Sync memtype to device for GPU backends 66 CeedMemType type = CEED_MEM_HOST; 67 CeedGetPreferredMemType(ceed, &type); 68 CeedVectorSyncArray(y, type); 69 } 70 CeedVectorPointwiseMult(y, y, y); 71 CeedVectorGetArrayRead(y, CEED_MEM_HOST, &read_array); 72 for (CeedInt i = 0; i < len; i++) { 73 if (fabs(read_array[i] - i * i) > 1e-14) { 74 // LCOV_EXCL_START 75 printf("Error in y = y .* y at index %" CeedInt_FMT ", computed: %f actual: %f\n", i, read_array[i], 1.0 * i * i); 76 // LCOV_EXCL_STOP 77 } 78 } 79 CeedVectorRestoreArrayRead(y, &read_array); 80 81 CeedVectorDestroy(&x); 82 CeedVectorDestroy(&y); 83 CeedVectorDestroy(&w); 84 CeedDestroy(&ceed); 85 return 0; 86 } 87