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Subject: Re: [hwloc-users] [hwloc-announce] Hardware locality (hwloc) v1.8rc1 released
From: Jiri Hladky (hladky.jiri_at_[hidden])
Date: 2013-11-11 12:07:47


Hi Brice,

it's fine with me, let's keep the code as it is.

Thanks
Jirka

On Sat, Nov 9, 2013 at 9:22 AM, Brice Goglin <Brice.Goglin_at_[hidden]> wrote:

> Le 09/11/2013 01:33, Jiri Hladky a écrit :
>
> Hi Brice,
>
> I have bumped into the following issue:
>
> hwloc-1.7.2:
> This works as expected:
> utils/hwloc-calc core:0-1 -H pu
> PU:0 PU:1 PU:2 PU:3
>
> Now intuitively one would expect this to work as well (as supported by
> taskset/numactl commands)
> utils/hwloc-calc core:0,1 -H pu
> PU:0 PU:1
> Unfortunately, ",1" is silently ignored.
>
> hwloc-1.8rc1 does better:
> $ ./hwloc-calc core:0,1 -H pu
> invalid character at `,1' after index at `0,1'
> ignored unrecognized argument core:0,1
>
>
> Somebody got the same issue a couple months ago. That's why I've added
> these explicit warning in 1.8. NEWS says:
>
> + hwloc-calc and friends have a more robust parsing of locations given
> on the command-line and they report useful error messages about it.
>
>
> However, I would vote for the format
> object:index,index1,index2
>
> to be supported and being equivalent to
>
> object:index object:index1 object:index2
>
> What do you think about it?
>
>
> It's annoying to implement because the current code was designed for
> (nested) loops only. Given that object:index1 object:index2 is easy to
> write, I'd vote for not making the code too complex.
>
> Brice
>
>
>
>
> Thanks a lot!
> Jirka
>
>
> On Wed, Nov 6, 2013 at 3:06 PM, Brice Goglin <Brice.Goglin_at_[hidden]>wrote:
>
>> The Hardware Locality (hwloc) team is pleased to announce the first
>> release candidate for v1.8:
>>
>> http://www.open-mpi.org/projects/hwloc/
>>
>> v1.8rc1 is the first milestone of a major feature release.
>> It adds PCI discovery on Linux without dependencies on external libs,
>> a new API to manipulate differences between very similar topologies,
>> multiple improvements to command-line tools, and more.
>>
>> * New components
>> + Add the "linuxpci" component that always works on Linux even when
>> libpciaccess and libpci aren't available (and even with a modified
>> file-system root). By default the old "pci" component runs first
>> because "linuxpci" lacks device names (obj->name is always NULL).
>> * API
>> + Add the topology difference API in hwloc/diff.h for manipulating
>> many similar topologies.
>> + Add hwloc_topology_dup() for duplicating an entire topology.
>> + hwloc.h and hwloc/helper.h have been reorganized to clarify the
>> documentation sections. The actual inline code has moved out of
>> hwloc.h
>> into the new hwloc/inlines.h.
>> + Deprecated functions are now in hwloc/deprecated.h, and not in the
>> official documentation anymore.
>> * Tools
>> + Add hwloc-diff and hwloc-patch tools together with the new diff API.
>> + Add hwloc-compress-dir to (de)compress an entire directory of XML
>> files
>> using hwloc-diff and hwloc-patch.
>> + Object colors in the graphical output of lstopo may be changed by
>> adding
>> a "lstopoStyle" info attribute. See CUSTOM COLORS in the lstopo(1)
>> manpage
>> for details. Thanks to Jirka Hladky for discussing the idea.
>> + hwloc-gather-topology may now gather I/O-related files on Linux when
>> --io is given. Only the linuxpci component supports discovering I/O
>> objects from these extended tarballs.
>> + hwloc-annotate now supports --ri to remove/replace info attributes
>> with
>> a given name.
>> + hwloc-info supports "root" and "all" special locations for dumping
>> information about the root object.
>> + lstopo now supports --append-legend to append custom lines of text
>> to the legend in the graphical output. Thanks to Jirka Hladky for
>> discussing the idea.
>> + hwloc-calc and friends have a more robust parsing of locations given
>> on the command-line and they report useful error messages about it.
>> + Add --whole-system to hwloc-bind, hwloc-calc, hwloc-distances and
>> hwloc-distrib, and add --restrict to hwloc-bind for uniformity among
>> tools.
>> * Misc
>> + Calling hwloc_topology_load() or hwloc_topology_set_*() on an already
>> loaded topology now returns an error (deprecated since release 1.6.1).
>> + Fix the initialisation of cpusets and nodesets in Group objects added
>> when inserting PCI hostbridges.
>> + Never merge Group objects that were added explicitly by the user with
>> hwloc_custom_insert_group_object_by_parent().
>> + Add a sanity check during dynamic plugin loading to prevent some
>> crashes when hwloc is dynamically loaded by another plugin mechanisms.
>> + Add --with-hwloc-plugins-path to specify the install/load directories
>> of plugins.
>> + Add the MICSerialNumber info attribute to the root object when running
>> hwloc inside a Xeon Phi to match the same attribute in the MIC OS
>> device
>> when running in the host.
>>
>> --
>> Brice
>>
>> _______________________________________________
>> hwloc-announce mailing list
>> hwloc-announce_at_[hidden]
>> http://www.open-mpi.org/mailman/listinfo.cgi/hwloc-announce
>>
>
>
>
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