Ah, that explains - thanks for clarifying
/Uffe
On 2015-01-06 15:26, Brice Goglin wrote:
Hello
We don't have PCI support on Windows unfortunately. And on non-Linux
platforms, you would have PCI devices without their locality, not really
useful.
The hwloc I/O doc says:
"Note that I/O discovery requires significant help from the operating
system. The pciaccess library (the development package is usually
|libpciaccess-devel| or |libpciaccess-dev|) is needed to fully detect
PCI devices and bridges, and the actual locality of these devices is
only currently detected on Linux. Also, some operating systems require
privileges for probing PCI devices, see Does hwloc require privileged
access?
<http://www.open-mpi.org/projects/hwloc/doc/v1.10.0/a00028.php#faq_privileged>
for details."
(http://www.open-mpi.org/projects/hwloc/doc/v1.10.0/a00010.php)
There's a ticket about I/O locality on Windows
(https://github.com/open-mpi/hwloc/issues/108). IIRC we need a recent
Windows to make this work, and I don't have any multisocket Windows
machine to test the code anyway :/
Brice
Le 06/01/2015 15:19, Uffe Jakobsen a écrit :
Hello,
Question: the hwloc binaries (1.10.0) for Windows found on the website
does not output pci devices even when supplying "--whole-io" option.
hwloc on both linux and freebsd produces the expected output - with
pci devices.
I haven't been able to find any info about reduced functionality in
the Windows release of hwloc - it on purpose or an error ?
PS: I'm new to hwloc - so bear with me if I'm asking an utterly stupid
question here.
Thanks in advance.
/Uffe
