aclrtSynchronizeStream(...) fails on cplusplus/level1_single_api/1_acl/4_blas/gemm

[anaumchev]

When I run execute_gemm_op, I get the following output:

        [INFO]  Set device[0] success
        [INFO]  Init resource success
        [INFO]  Init op input success
        [INFO]  Prepare op input data success
        [INFO]  Matrix A:
        ...
        [INFO]  Matrix B:
        ...
        [INFO]  Matrix C:
        ...
        [INFO]  Create stream success
        [INFO]  Copy inputs success
        [INFO]  Launch Gemm kernel success
        [ERROR]  Synchronize stream failed
        [INFO]  Destory resource success

The following line of code causes this error:

samples/cplusplus/level1_single_api/1_acl/4_blas/gemm/src/gemm_runner.cpp

Line 224 in fc2aea9

if (aclrtSynchronizeStream(stream) != ACL_SUCCESS) {

What is the reason? How can I fix this?