Re: [hwloc-users] Reporting an operating system warning

2017-01-02 Thread Johannes Goller
Hi Brice, thank you very much for looking into this! I am attaching the generated foo.xml. I actually came across this error message when trying to play with OpenCL, using the AMD SDK API. My main interest is in getting that to work on the GPU, and that might still work on my current kernel

Re: [hwloc-users] Reporting an operating system warning

2017-01-02 Thread Brice Goglin
Hello Johannes I think there are two bugs here. First one is that each "dual-core compute unit" is reported as a single core with two hardware threads. That's a kernel bug that appeared in 4.6. There's a fix at https://lkml.org/lkml/2016/11/29/852 but I don't think it has been applied yet. The

[hwloc-users] Reporting an operating system warning

2017-01-02 Thread Johannes Goller
As requested on https://www.open-mpi.org/projects/hwloc/doc/v1.10.1/a00028.php ("What should I do when hwloc reports 'operating system' warnings?"), I am reporting the warning/error I received as follows * hwloc 1.11.0