Function xgesvdr_buffer_size 

pub fn xgesvdr_buffer_size<TA: DataTypeLike, TS: DataTypeLike, TU: DataTypeLike, TV: DataTypeLike>(
    ctx: &Context,
    params: &Params,
    job_u: TruncatedSvdMode,
    job_v: TruncatedSvdMode,
    m: usize,
    n: usize,
    k: usize,
    p: usize,
    niters: usize,
    a: MatrixRef<'_, TA>,
    s: &DeviceMemory<TS>,
    u: Option<MatrixRef<'_, TU>>,
    v: Option<MatrixRef<'_, TV>>,
) -> Result<WorkspaceSizes>