Function cheevj_batched_buffer_size 

pub fn cheevj_batched_buffer_size(
    ctx: &Context,
    mode: EigenMode,
    fill_mode: FillMode,
    n: usize,
    a: &DeviceMemory<Complex32>,
    lda: usize,
    w: &DeviceMemory<f32>,
    params: &SyevjInfo,
    batch_count: usize,
) -> Result<usize>