Dear all, the current bitmap API of hwloc 1.1 supports input/output for bitmaps using strings that represent a map as hex words. The functions are hwloc_bitmap_snprintf, hwloc_bitmap_sscanf and the like.
Linux cpusets in addition support an "ASCII list representation" of bitmaps, like 0-15,32-47. This is much easier to read and to write. I suggest to add corresponding functions to the hwloc bitmap C API. Note that there also exists libcpuset and libbitmask in some Linux distributions. These are originally from SGI. There exist the functions bitmask_displayhex, bitmask_displaylist, bitmask_parsehex, bitmask_parselist. I added something like that to the most recent Sys::Hwloc Perl wrapper, which is currently found at http://www.cpan.org/modules/by-authors/id/B/BK/BKA/Sys-Hwloc-0.07.tar.gz The code for list input/output of hwloc bitmaps was adapted from recent linux kernel code, see e.g. http://lxr.free-electrons.com/source/lib/bitmap.c (functions bitmap_scnlistprintf, bitmap_parselist). Regards BK -- Dr. Bernd Kallies Konrad-Zuse-Zentrum für Informationstechnik Berlin Takustr. 7 14195 Berlin Tel: +49-30-84185-270 Fax: +49-30-84185-311 e-mail: kall...@zib.de
