Device Memory Routines (GNU libgomp)

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### 3.8 Device Memory Routines ¶

Routines related to memory allocation and managing corresponding pointers on devices. They have C linkage and do not throw exceptions.

- `omp_target_alloc` – Allocate device memory
- `omp_target_free` – Free device memory
- `omp_target_is_present` – Check whether storage is mapped
- `omp_target_is_accessible` – Check whether memory is device accessible
- `omp_target_memcpy` – Copy data between devices
- `omp_target_memcpy_async` – Copy data between devices asynchronously
- `omp_target_memcpy_rect` – Copy a subvolume of data between devices
- `omp_target_memcpy_rect_async` – Copy a subvolume of data between devices asynchronously
- `omp_target_memset` – Set bytes in device memory
- `omp_target_memset` – Set bytes in device memory asynchronously
- `omp_target_associate_ptr` – Associate a device pointer with a host pointer
- `omp_target_disassociate_ptr` – Remove device–host pointer association
- `omp_get_mapped_ptr` – Return device pointer to a host pointer