Function batch_ntt 

pub fn batch_ntt(
    buffer: &DeviceBuffer<F>,
    log_trace_height: u32,
    log_blowup: u32,
    width: u32,
    bit_reverse: bool,
    is_intt: bool,
    device_ctx: &GpuDeviceCtx,
)

Performs column-wise batch NTT on buffer, where buffer is assumed to be column-major with columns of height 2^(log_trace_height + log_blowup). The NTT are performed on the first 2^log_trace_height elements of each column. If bit_reverse is true, then the input columns are assumed to be ordered in natural ordering, and a bit-reversal permutation is applied for the internal algorithm of the NTT. If bit_reverse is false, then the input columns are assumed to be in bit-reverse ordering. If is_intt is true, the inverse NTT is performed; otherwise, the forward NTT is performed.