GPU data transfer

Function to transfer data to/from GPUs. More...

Functions
ghost_error	ghost_densemat_download (ghost_densemat *vec)
	Downloads a densemat from a compute device, excluding halo elements. More...
ghost_error	ghost_densemat_upload (ghost_densemat *vec)
	Uploads a densemat to a compute device, excluding halo elements. The densemat must be present on both host and device. More...

Detailed Description

Function to transfer data to/from GPUs.

Function Documentation

ghost_error ghost_densemat_download

(

ghost_densemat *

vec

)

Downloads a densemat from a compute device, excluding halo elements.

The densemat must be present on both host and device. Does nothing if the densemat is not present on the device.

Parameters

vec	The densemat.

Returns

GHOST_SUCCESS on success or an error indicator.

ghost_error ghost_densemat_upload

(

ghost_densemat *

vec

)

Uploads a densemat to a compute device, excluding halo elements. The densemat must be present on both host and device.

Parameters

vec	The densemat.