Functionality of OpenACC¶

1. What is one of the main benefits of OpenACC’s incremental parallelization?

• A. Immediate parallelization of the entire codebase
• B. Step-by-step addition of parallelism while verifying each modification
• C. Replacing serial code entirely with parallel code
• D. Automatic optimization of all code regions

Key Principles of OpenACC¶

2. True or False: OpenACC allows for single-source code that can run on various hardware architectures without modification.

3. Which directive is used in OpenACC to parallelize a loop, as shown in the SAXPY example?

• A. #pragma acc kernels
• B. #pragma acc data
• C. #pragma acc parallel loop
• D. #pragma acc async

Low Learning Curve¶

4. How does OpenACC simplify parallel programming for developers new to the field?

• A. By requiring hardware-specific memory management
• B. By abstracting low-level details and focusing on high-level directives
• C. By enforcing GPU-specific programming models
• D. By automatically writing parallel code for users

5. True or False: The kernels directive in OpenACC allows the compiler to analyze and parallelize a code region without the developer needing to specify device-specific details.