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
main(int argc,char ** argv)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