CUDA releases before 4.0 didn't support this attribute, the #ifdef
cannot work anymore on recent CUDA releases, I'll fix that, thanks.
Interesting to know that NUMAScale machines use PCI domains.
Brice



Le 04/06/2015 14:13, Imre Kerr a écrit :
> Hi,
> Never mind, I figured it out. hwloc_cudart_get_device_pci_ids was
> giving the PCI Domain as being 0 for all GPUs. Looking at
> hwloc/cudart.h, I found some strange conditional. Removing it solved
> the problem. Is CU_DEVICE_ATTRIBUTE_PCI_DOMAIN_ID a holdover from some
> older CUDA version?
>
> diff --git a/include/hwloc/cudart.h b/include/hwloc/cudart.h
> index 243e0fd..e2fd74d 100644
> --- a/include/hwloc/cudart.h
> +++ b/include/hwloc/cudart.h
> @@ -56,12 +56,7 @@ hwloc_cudart_get_device_pci_ids(hwloc_topology_t
> topology __hwloc_attribute_unus
>      return -1;
>    }
>
> -#ifdef CU_DEVICE_ATTRIBUTE_PCI_DOMAIN_ID
>    *domain = prop.pciDomainID;
> -#else
> -  *domain = 0;
> -#endif
> -
>    *bus = prop.pciBusID;
>    *dev = prop.pciDeviceID;
>
> Imre
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