This example demonstrates how to use preprocessor macros to distinguish between the host and the device compilation pass(es). For more information on this topic, please refer to the HIP documentation.

1. A kernel is launched called which calls a printer function.
2. The device and the host are synchronized.
3. The printer function is called on the host.

• __HIP_DEVICE_COMPILE__ is defined whenever a device compilation pass takes place. It is undefined otherwise.

• __HIP_DEVICE_COMPILE__
• printf

• hipDeviceSynchronize