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