On 17/05/2010 17:41, Jirka Hladky wrote: > > I don't have system with 128 CPUs, but according to man page it's > 0x80000000000000000000000000000000 > > I have attached the source code as well. See str_to_cpuset function. It > supports cpuset hex mask of any length. > > I understand your point to use hwloc-bind. However, I still believe that > supporting taskset would be a useful feature and very easy to implement (you > basically just convert physical CPU # into hex). taskset is currently THE > user-space program to set CPU affinity. I understand that it's probably too > late for this release. But perhaps you can consider it for the next release. >
Hello Jirka, I have added --taskset options to hwloc-calc, hwloc-bind and lstopo. It uses some new hwloc_cpuset_taskset_snprint/asprintf/sscanf() functions. See the patch at: https://svn.open-mpi.org/trac/hwloc/changeset?new=2120%40trunk&old=2119%40trunk (applies to trunk, but not to 1.0) The easiest way for you to test it might be tomorrow's nightly tarball (http://www.open-mpi.org/software/hwloc/nightly/trunk/). Brice
