Hello, hwloc 2 is to be released sooner or later, and it introduces a few API changes. The build log for version 3.3~a2 of mpich shows: tools/topo/hwloc/topo_hwloc.c:428:40: error: 'HWLOC_MEMBIND_REPLICATE' undeclared (first use in this function); did you mean 'HWLOC_MEMBIND_MIGRATE'? HYDT_topo_hwloc_info.membind = HWLOC_MEMBIND_REPLICATE; ^~~~~~~~~~~~~~~~~~~~~~~ HWLOC_MEMBIND_MIGRATE There might also be other issues. To test against the development tree for hwloc 2, one can use git clone http://github.com/open-mpi/hwloc.git Samuel _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss