<div dir="ltr"><div class="gmail_signature">On Wed, May 11, 2016 at 8:27 PM, Vedran Miletić <span dir="ltr"><<a href="mailto:rivanvx@gmail.com" target="_blank">rivanvx@gmail.com</a>></span> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><span class="">2016-05-11 18:41 GMT+02:00 Szilárd Páll <<a href="mailto:pall.szilard@gmail.com">pall.szilard@gmail.com</a>>:<br>
> clEnqueueWaitForEvents has been changed to clEnqueueBarrierWithWaitList in<br>
> OpenCL 1.2, but we do have both cases handled:<br>
> <a href="http://redmine.gromacs.org/projects/gromacs/repository/revisions/release-5-1/entry/src/gromacs/mdlib/nbnxn_ocl/nbnxn_ocl.cpp#L329" rel="noreferrer" target="_blank">http://redmine.gromacs.org/projects/gromacs/repository/revisions/release-5-1/entry/src/gromacs/mdlib/nbnxn_ocl/nbnxn_ocl.cpp#L329</a><br>
><br>
> So AFAICT you could be using a header that's OpenCL 1.2, but the old<br>
> libOpenCL.so from NVIDIA.<br>
<br>
</span>Indeed [1], and this affects all the users of Debian 8 that use the<br>
packaged CUDA.<br></blockquote><div><br></div><div>That seems to be a broken setup; the API needs to be compatible with the libraries in the repo, so they need to provide a library that's v1.1 (or perhaps even nvidia's own lib if </div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">
<br>
Can I somehow force OpenCL 1.1 to be used, i.e. forcefully undefine<br>
CL_VERSION_1_2? I tried -U parameter but this does not work [2].<br></blockquote><div><br></div><div>As far as I know you can only do that in the code with #undef. We could manage internally our own CL_VERSION something like it's done with the PTX version in CUDA (gpu_utils/cuda_arch_utils.cuh) and somehow work around the Debian issue, but it would be good to know how widespread this is and whether perhaps there is a better user-side solution.</div><div><br></div><div><div><div class="gmail_signature">--<br>Szilárd</div></div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">
<br>
Regards,<br>
Vedran<br>
<br>
[1] <a href="https://packages.debian.org/jessie/opencl-headers" rel="noreferrer" target="_blank">https://packages.debian.org/jessie/opencl-headers</a><br>
[2] <a href="https://stackoverflow.com/questions/1978155/how-to-undefine-a-define-at-commandline-using-gcc" rel="noreferrer" target="_blank">https://stackoverflow.com/questions/1978155/how-to-undefine-a-define-at-commandline-using-gcc</a><br>
<div class=""><div class="h5"><br>
--<br>
Vedran Miletić<br>
<a href="http://vedranmileti.ch/" rel="noreferrer" target="_blank">http://vedranmileti.ch/</a><br>
--<br>
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