Re: [Beignet] Shared Host Memory but not Share

Please refer to the sample code in utests/runtime_use_host_ptr_buffer.cpp and kernels/runtime_use_host_ptr_buffer.cl To avoid internal copy, it requires libdrm version >= 2.4.58 and linux kernel version >= 3.16 From: Beignet [mailto:beignet-boun...@lists.freedesktop.org] On Behalf Of Gao, San

[Beignet] Shared Host Memory but not Share

Hi, alls, I want to use CL_MEM_USE_HOST_PTR to create a buffer object which shares host memory, so the changes to the elements in kernel can be used by host program. But the result is that, I have changed the element in kernel, but the element in host program has not changed. I don't know why