NEXTTOUCH isn't supported on Linux. I hope you'd get an error if you request it.
Brice Le 19/08/2014 18:48, Aulwes, Rob a écrit : > Hi Brice, > > I've tried: > > p = hwloc_alloc_membind_policy(_topo, cnt * sizeof (T), > mem_nodeset, HWLOC_MEMBIND_NEXTTOUCH, 0); > > and > > p = hwloc_alloc_membind_nodeset(_topo, cnt * sizeof (T), > mem_nodeset, HWLOC_MEMBIND_NEXTTOUCH, 0); > > and > > > p = hwloc_alloc(_topo, cnt * sizeof (T)); > hwloc_set_area_membind_nodeset(_topo, p, cnt * sizeof (T), > > mem_nodeset, HWLOC_MEMBIND_NEXTTOUCH, 0); > > where > > mem_nodeset = hwloc_topology_get_complete_nodeset(_topo); > > Thanks,Rob > > From: Brice Goglin <brice.gog...@inria.fr <mailto:brice.gog...@inria.fr>> > Reply-To: Hardware locality user list <hwloc-us...@open-mpi.org > <mailto:hwloc-us...@open-mpi.org>> > Date: Tue, 19 Aug 2014 18:44:05 +0200 > To: Hardware locality user list <hwloc-us...@open-mpi.org > <mailto:hwloc-us...@open-mpi.org>> > Subject: Re: [hwloc-users] setting memory bindings > > Le 19/08/2014 18:38, Aulwes, Rob a écrit : >> Hi, >> >> I'm trying to write a custom C++ allocator that wraps hwloc calls. >> I've tried using various hwloc_alloc* functions to set the memory >> bindings, but when I call hwloc_get_area_membind_nodeset to verify, I >> don't get the same policy I passed to alloc. Are there example codes >> that show how to set memory bindings? More generally, are there >> example codes that help illustrate how to use hwloc API? >> >> Thanks,Rob Aulwes >> > > Hello > > Your problem may be related to the fact that same policies are > identical on some operating systems. For instance DEFAULT and > FIRST_TOUCH are often identical. What did you set and what did you get > back? > > There are many examples in the tests subdirectory, in > doc/hwloc-helloc.c and in hwloc/helper.h and hwloc/inline.h, but I > don't think we have much about the membind API, and this API isn't a > easy one unfortunately (given the variety of existing policies and > operating systems). > > Brice > > _______________________________________________ hwloc-users mailing > list hwloc-us...@open-mpi.org <mailto:hwloc-us...@open-mpi.org> > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/hwloc-users > <http://www.open-mpi.org/mailman/listinfo.cgi/hwloc-users> Link to > this post: > http://www.open-mpi.org/community/lists/hwloc-users/2014/08/1058.php > > > _______________________________________________ > hwloc-users mailing list > hwloc-us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/hwloc-users > Link to this post: > http://www.open-mpi.org/community/lists/hwloc-users/2014/08/1058.php
