1 /// @file 2 /// Test syncing device data to host pointer 3 /// \test Test syncing device data to host pointer 4 #include <ceed.h> 5 #include <stdio.h> 6 7 int main(int argc, char **argv) { 8 Ceed ceed; 9 CeedVector x, y; 10 CeedInt len = 10; 11 CeedScalar x_array[len]; 12 13 CeedInit(argv[1], &ceed); 14 15 CeedVectorCreate(ceed, len, &x); 16 CeedVectorCreate(ceed, len, &y); 17 18 for (CeedInt i = 0; i < len; i++) x_array[i] = 0; 19 CeedVectorSetArray(x, CEED_MEM_HOST, CEED_USE_POINTER, x_array); 20 { 21 CeedScalar initial_array[len]; 22 23 for (CeedInt i = 0; i < len; i++) initial_array[i] = len + i; 24 CeedVectorSetArray(y, CEED_MEM_HOST, CEED_COPY_VALUES, initial_array); 25 } 26 { 27 const CeedScalar *read_array; 28 29 CeedVectorGetArrayRead(y, CEED_MEM_DEVICE, &read_array); 30 CeedVectorSetArray(x, CEED_MEM_DEVICE, CEED_COPY_VALUES, (CeedScalar *)read_array); 31 CeedVectorRestoreArrayRead(y, &read_array); 32 } 33 CeedVectorSyncArray(x, CEED_MEM_HOST); 34 for (CeedInt i = 0; i < len; i++) { 35 if (x_array[i] != len + i) printf("Error reading array[%" CeedInt_FMT "] = %f\n", i, (CeedScalar)x_array[i]); 36 } 37 38 CeedVectorDestroy(&x); 39 CeedVectorDestroy(&y); 40 CeedDestroy(&ceed); 41 return 0; 42 } 43