Re: NUMA API

[William Lee Irwin III <wli@holomorphy.com>]

On Fri, Apr 30, 2004 at 12:35:26AM -0700, Ulrich Drepper wrote:
> In the last weeks I have been working on designing a new API for a NUMA
> support library.  I am aware of the code in libnuma by ak but this code
> has many shortcomings:
> ~ inadequate topology discovery
> ~ fixed cpu set size
> ~ no clear separation of memory nodes
> ~ no inclusion of SMT/multicore in the cpu hierarchy
> ~ awkward (at best) memory allocation interface
> ~ etc etc
> and last but not least
> ~ a completely unacceptable library interface (e.g., global variables as
> part of the API, WTF?)

Regardless of issues addressed, Andi's been working with everyone for
something on the order of 12+ months and this is out of the blue. I very
very strongly suggest that you take up each of these issues with him so
that they can be addressed as individual incremental improvements to the
API everyone's been working with for all that time as opposed to screwing
the world (esp. now that commodity NUMA boxen are becoming more prevalent)
with transparent and deliberate distro-competition motivated API skew.

-- wli