Function gpu_scale 

pub fn gpu_scale(
    a: &CudaBuffer<f32>,
    scalar: f32,
    device: &GpuDevice,
) -> GpuResult<CudaBuffer<f32>>

Scalar multiply: out[i] = a[i] * scalar.

Multiplies every element by a constant float value on the GPU.

Errors

• GpuError::DeviceMismatch if a and device refer to different CUDA devices.
• GpuError::Driver on CUDA runtime errors.