Function copyArray

src/backend/oneapi/copy.cpp:51–90

template<typename T>
Array<T> copyArray(const Array<T> &A) {
    Array<T> out = createEmptyArray<T>(A.dims());
    if (A.elements() == 0) { return out; }

    dim_t offset = A.getOffset();
    if (A.isReady()) {
        if (A.isLinear()) {
            // FIXME: Add checks

            sycl::buffer<T> *A_buf   = A.get();
            sycl::buffer<T> *out_buf = out.get();

            size_t aelem = A.elements();
            getQueue().submit([&](sycl::handler &h) {
                range rr(aelem);
                id offset_id(offset);
                accessor offset_acc_A =
                    A_buf->template get_access<access_mode::read>(h, rr,
                                                                  offset_id);
                accessor acc_out =
                    out_buf->template get_access<access_mode::write>(h);

                h.copy(offset_acc_A, acc_out);
            });
        } else {
            kernel::memcopy<T>(out.get(), out.strides().get(), A.get(),
                               A.dims().get(), A.strides().get(), offset,
                               (uint)A.ndims());
        }
    } else {
        Param info = {out.get(),
                      {{A.dims().dims[0], A.dims().dims[1], A.dims().dims[2],
                        A.dims().dims[3]},
                       {out.strides().dims[0], out.strides().dims[1],
                        out.strides().dims[2], out.strides().dims[3]},
                       0}};
        evalNodes(info, A.getNode().get());
    }
    return out;
}

template<typename T>
void multiply_inplace(Array<T> &in, double val) {