Method DeviceView

catboost/cuda/cuda_lib/cuda_buffer.h:223–235

TODO: get rid of this. Refactor everything to const in template type instead of holder-objects

        //TODO: get rid of this. Refactor everything to const in template type instead of holder-objects
        TCudaBuffer<T, TSingleMapping, Type> DeviceView(ui32 devId) const {
            TCudaBuffer<T, TSingleMapping, Type> buffer;
            const auto devSlice = Mapping.DeviceSlice(devId);
            buffer.Mapping = TSingleMapping(devId, devSlice.Size(), Mapping.SingleObjectSize());

            if (Buffers.at(devId).NotEmpty()) {
                buffer.Buffers.at(devId) = Buffers.at(devId).ShiftedBuffer(Mapping.DeviceMemoryOffset(devId, devSlice));
            }
            buffer.IsSliceView = true;
            buffer.ReadOnly = true;
            buffer.ColumnCount = ColumnCount;
            return buffer;
        }

        TCudaBuffer<const T, TSingleMapping, Type> ConstDeviceView(ui32 devId) const {
            TCudaBuffer<const T, TSingleMapping, Type> buffer;