The problem of " libiomp5md.dll!__kmp_suspend_64() " with Intel C++ Compiler XE 15.0 Update 4

After running  several hours, the code with OpenMP or MKL would lock at

         libiomp5md.dll!__kmp_suspend_64()
         libiomp5md.dll!__kmp_barrier()
         libiomp5md.dll!__kmp_join_barrier()
         libiomp5md.dll!__kmp_join_call()
         libiomp5md.dll!_vcomp_fork()

The code example with OpenMP could be:

for (long long n = 0; n < N; n++)  // N=2^50
{
#pragma omp parallel for
        for (int i = 0; i < Z; i++)
        {
                y[i] = a[i] * b[i];
        }
}

Who can solve this problem completely?
Thank you very much.