Add opencl support

[thomas]

Can be tested with compiling and running cas-offinder (https://github.com/snugel/cas-offinder).

  #> OCL_ICD_VENDORS=/usr/share/nvidia/460.39/lib/libnvidia-opencl.so.460.39 ./cas-offinder 

[pmenzel]

bee shows a conflict:

$ sudo bee update nvidia-mxlinks
installing /src/mariux/beeroot/packages/nvidia-mxlinks-0.13-0.x86_64.bee.tar.bz2 ..
removing nvidia-mxlinks-0.12-0.x86_64 ..
$ sudo bee install OpenCL-Headers ocl-icd
installing /src/mariux/beeroot/packages/OpenCL-Headers-2021.06.30-0.x86_64.bee.tar.bz2 ..
installing /src/mariux/beeroot/packages/ocl-icd-2.3.0-0.x86_64.bee.tar.bz2 ..
    Conflicts with installed package found: nvidia-mxlinks-0.13-0.x86_64:
        /usr/lib/libOpenCL.so.1
installing /src/mariux/beeroot/packages/clinfo-3.0.21.02.21-0.x86_64.bee.tar.bz2 ..

[thomas]

That's the situation that nvidia-mxlinks-0.12-1 is about to resolve. It looks like something with nvidia-mxlinks went really haywire. There is a nvidia-mxlinks-0.13-0 in /src/mariux/beeroot/bee-files dated Jan-2020, that looks way experimental to me. OTOH nvidia-mxlinks-0.12-0 in the repo doesn't even 'build'. (duplicate libnvidia-opencl.so.1 ...) To proceed with testing, nvidia-mxlinks-0.12-1 could be used, but to resolve this situation. I simply propose to bump up the version high enough and avoid further confusion.

[pmenzel]

Thank you for the analysis. I didn’t check the version numbers. So how to test this properly?

$ sudo bee update nvidia-mxlinks-0.12-1
$ sudo bee install OpenCL-Headers ocl-icd

[pmenzel]

The comment can be removed?

[pmenzel]

It’d be great if you mentioned in the commit message, where the patch is from.

[pmenzel]

$ diff -u /src/mariux/beeroot/bee-files/nvidia-mxlinks-0.12-0.bee /src/mariux/beeroot/bee-files/nvidia-mxlinks-0.13-0.bee
--- /src/mariux/beeroot/bee-files/nvidia-mxlinks-0.12-0.bee	2020-01-15 10:50:41.000000000 +0100
+++ /src/mariux/beeroot/bee-files/nvidia-mxlinks-0.13-0.bee	2020-01-28 13:16:30.000000000 +0100
@@ -1,6 +1,6 @@
 #!/bin/env beesh
 
-# BEE_VERSION nvidia-mxlinks-0.12-0
+# BEE_VERSION nvidia-mxlinks-0.13-0
 
 EXCLUDE=("^/usr/lib/(X11|xorg)(|/modules(|/drivers))$")
 
@@ -31,16 +31,17 @@
         "libnvidia-ifr.so.1"
         "libnvidia-opticalflow.so.1"
         "libnvoptix.so.1"
+        "libGLX_indirect.so.0"
     )
 
     for i in ${NVLIBS[@]} ; do
-        ln -sv /usr/share/mxgfx/lib/${i} ${D}${LIBDIR}/${i}
+      start_cmd ln -sv /usr/share/mxgfx/lib/${i} ${D}${LIBDIR}/${i}
     done
 
     ln -sv libvdpau_nvidia.so.1 ${D}${LIBDIR}/libvdpau_nvidia.so
 
-    ln -sv /node/usr_share_mxgfx \
-           ${D}${DATAROOTDIR}/mxgfx
+    #ln -sv /node/usr_share_mxgfx \
+    #       ${D}${DATAROOTDIR}/mxgfx
 
     ln -sv /usr/share/mxgfx/drivers/nvidia_drv.so \
            ${D}${LIBDIR}/X11/modules/drivers/nvidia_drv.so

So I suggest to either replace nvidia-mxlinks-0.13-0, or use 0.14-0.

[thomas]

So how to test this properly?

Try some OpenCL software, e.g. clinfo should work now.

[thomas]

I'd like to keep the comment, it points to the origin.

[pmenzel]

So how to test this properly?
Try some OpenCL software, e.g. clinfo should work now.

Sorry, I just meant, what bee packages to update and to install (and what order). But yes, I tested with clinfo, and it worked.

[thomas]

a2de5a6 is from the OCL-dev/ocl-icd repo (see prev message). But right, it should be mentioned.

[thomas]

In the diff I wondered also about 'libGLX_indirect.so.0', it rings a bell, but there is no trace in the current system (AFAICT)

So I suggest to either replace |nvidia-mxlinks-0.13-0|, or use 0.14-0.

Jepp, that was the point with 'bumping up the version'.

…

-- Thomas Kreitler - Information Retrieval kreitler@molgen.mpg.de 49/30/8413 1702

[thomas]

Sorry, I just meant, what bee packages to update and to install (and what order). But yes, I tested with clinfo, and it worked.

Just a few steps, install cleaned up nvidia-mxlinks, install recent CL-headers (no rebuild required), and ocl-icd at the end. Basically the libOpenCL.so.1 conflict is just an annoyance, since it was already a dead link when running newer nvidia-drivers. After ocl-icd installation the link is correct.

[thomas]

#2180 obsoletes this one, also the chaos around nvidia-mxlinks distracts from the real aim of the PR. So I'm closing this one before it gets really ridiculous.