Method CopyDeviceToAnotherDevice

cpp/src/arrow/gpu/cuda_context.cc:141–148

  }

  Status CopyDeviceToAnotherDevice(const std::shared_ptr<CudaContext>& dst_ctx,
                                   uintptr_t dst, uintptr_t src, int64_t nbytes) {
    ContextSaver set_temporary(context_);
    CU_RETURN_NOT_OK("cuMemcpyPeer",
                     cuMemcpyPeer(dst, reinterpret_cast<CUcontext>(dst_ctx->handle()),
                                  src, context_, static_cast<size_t>(nbytes)));
    return Status::OK();
  }

  Status Synchronize(void) {
    ContextSaver set_temporary(context_);