# gpu keywords

GPU parameters

## gpu.deviceList

Gives the ranks of the GPUs to be used in a calculation. For instance,
if gpu.device = \[1,3,5\], then RESCU will use the first, third and
fifth GPUs on every node.

**type**: `array`

**example**: `gpu.deviceList = [1,3,5]`

## gpu.procpernode

Number of processes per node if mpi.status = true. gpu.gpupernode should
be a dividor of gpu.procpernode.

**type**: `scalar`

**example**: `gpu.procpernode = 2`

## gpu.status

Set to true in order to use GPU devices.

**type**: `scalar`

**default**: `false`

**allowed**: `true,false`

**example**: `gpu.status = true`
