Le 27/09/2017 à 20:39, Brice Goglin a écrit : > > Le 27/09/2017 18:58, Samuel Thibault a écrit : >> Hello, >> >> On systems with NVidia GPU devices, opencl devices don't show up in >> lstopo. Running in debug mode shows that they are detected: >> >> 1 OpenCL platforms >> This is opencl0d0 >> >> but then topology-opencl.c stops there and does not create an osdev >> object. AMD GPUs with non-PCIe device type are not reported either. >> >> I know that in these cases, we don't know where the GPUs are connected >> exactly, but we already have code coping with this: >> >> if (!parent) >> parent = hwloc_get_root_obj(topology); >> >> Isn't it better to show OpenCL at the root rather then not at all? >> > As you want. > If there's a need for these objects without any topology information, > that's fine with me. >
I think I have fixed everything needed to make this work in my opencl branch. https://github.com/open-mpi/hwloc/pull/266 Do we want to see OpenCL CPU devices too? Something like this attached to the root (even on dual-socket machines): Co-Processor(OpenCL) L#7 (Backend=OpenCL OpenCLDeviceType=CPU GPUVendor=GenuineIntel GPUModel="Intel(R) Xeon(R) CPU E5-2650 0 @ 2.00GHz" OpenCLPlatformIndex=0 OpenCLPlatformName="AMD Accelerated Parallel Processing" OpenCLPlatformDeviceIndex=2 OpenCLComputeUnits=32 OpenCLGlobalMemorySize=32869688) "opencl0d2" Brice _______________________________________________ hwloc-devel mailing list hwloc-devel@lists.open-mpi.org https://lists.open-mpi.org/mailman/listinfo/hwloc-devel
