1 /// @file 2 /// Test syncing device data to host pointer 3 /// \test Test syncing device data to host pointer 4 #include <ceed.h> 5 6 int main(int argc, char **argv) { 7 Ceed ceed; 8 CeedVector x, y; 9 CeedInt len = 10; 10 CeedScalar x_array[len]; 11 12 CeedInit(argv[1], &ceed); 13 14 CeedVectorCreate(ceed, len, &x); 15 CeedVectorCreate(ceed, len, &y); 16 17 for (CeedInt i = 0; i < len; i++) x_array[i] = 0; 18 CeedVectorSetArray(x, CEED_MEM_HOST, CEED_USE_POINTER, x_array); 19 { 20 CeedScalar initial_array[len]; 21 22 for (CeedInt i = 0; i < len; i++) initial_array[i] = len + i; 23 CeedVectorSetArray(y, CEED_MEM_HOST, CEED_COPY_VALUES, initial_array); 24 } 25 { 26 const CeedScalar *read_array; 27 28 CeedVectorGetArrayRead(y, CEED_MEM_DEVICE, &read_array); 29 CeedVectorSetArray(x, CEED_MEM_DEVICE, CEED_COPY_VALUES, (CeedScalar *)read_array); 30 CeedVectorRestoreArrayRead(y, &read_array); 31 } 32 CeedVectorSyncArray(x, CEED_MEM_HOST); 33 for (CeedInt i = 0; i < len; i++) { 34 if (x_array[i] != len + i) printf("Error reading array[%" CeedInt_FMT "] = %f\n", i, (CeedScalar)x_array[i]); 35 } 36 37 CeedVectorDestroy(&x); 38 CeedVectorDestroy(&y); 39 CeedDestroy(&ceed); 40 return 0; 41 } 42