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++) 21 a[i] = i; 22 CeedVectorSetArray(x, CEED_MEM_HOST, CEED_COPY_VALUES, a); 23 CeedVectorSetArray(y, CEED_MEM_HOST, CEED_COPY_VALUES, a); 24 25 // Test multiplying two vectors into third 26 CeedVectorPointwiseMult(w, x, y); 27 CeedVectorGetArrayRead(w, CEED_MEM_HOST, &b); 28 for (CeedInt i=0; i<n; i++) 29 if (fabs(b[i] - i*i ) > 1e-14) 30 // LCOV_EXCL_START 31 printf("Error in w = x .* y at index %" CeedInt_FMT 32 ", computed: %f actual: %f\n", i, b[i], 1.0*i*i); 33 // LCOV_EXCL_STOP 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 43 ", computed: %f actual: %f\n", i, b[i], 1.0*i*i*i); 44 // LCOV_EXCL_STOP 45 CeedVectorRestoreArrayRead(w, &b); 46 47 // Test multiplying two vectors into one of the two 48 CeedVectorPointwiseMult(w, x, w); 49 CeedVectorGetArrayRead(w, CEED_MEM_HOST, &b); 50 for (CeedInt i=0; i<n; i++) 51 if (fabs(b[i] - i*i*i*i ) > 1e-14) 52 // LCOV_EXCL_START 53 printf("Error in w = x .* w at index %" CeedInt_FMT 54 ", computed: %f actual: %f\n", i, b[i], 1.0*i*i*i*i); 55 // LCOV_EXCL_STOP 56 CeedVectorRestoreArrayRead(w, &b); 57 58 // Test multiplying vector by itself and putting product into self 59 { 60 // Sync memtype to device for GPU backends 61 CeedMemType type = CEED_MEM_HOST; 62 CeedGetPreferredMemType(ceed, &type); 63 CeedVectorSyncArray(y, type); 64 } 65 CeedVectorPointwiseMult(y, y, y); 66 CeedVectorGetArrayRead(y, CEED_MEM_HOST, &b); 67 for (CeedInt i=0; i<n; i++) 68 if (fabs(b[i] - i*i ) > 1e-14) 69 // LCOV_EXCL_START 70 printf("Error in y = y .* y at index %" CeedInt_FMT 71 ", computed: %f actual: %f\n", i, b[i], 1.0*i*i); 72 // LCOV_EXCL_STOP 73 CeedVectorRestoreArrayRead(y, &b); 74 75 CeedVectorDestroy(&x); 76 CeedVectorDestroy(&y); 77 CeedVectorDestroy(&w); 78 CeedDestroy(&ceed); 79 return 0; 80 } 81