I’m very pleased to announce that we just released Hardware Locality (hwloc) version 1.1.  Woo hoo!

There’s bunches of new stuff in hwloc 1.1:

• A memory binding interface is the Big New Feature.  It’s available in both the C API and via command line options to tools such as hwloc-bind.
• We improved lotopo’s logical vs. physical ID numbering.  Logical numbers are now all prefixed with “L#”; physical numbers are prefixed with “P#”.  That’s that, then.
• “cpusets” are now “bitmaps”, and now have no maximum size; they’re dynamically allocated (especially for machines with huge core counts).
• Arbitrary key=value caching is available on all objects.

…more after the break.

• More helpers are available for accelerators and some network types.
• lstopo graphical outputs now sport a legend specifying what machine it was run on, etc.
• lstopo has generic input and option command line options, allowing you to force a specific input or output format.
• More patterns are supported in hwloc-calc and hwloc-distrib.

And bunches of little, probably-otherwise-unnoticeable changes on the back end of things.

Gift the gift of hwloc this holidays!