"PU P#0" means "PU object with physical index 0". "P#" prefix means "physical index". "L#" prefix means "logical index" (the one you want to use in get_obj_by_type). Use -l or -p to switch from one to the other in lstopo.
Brice Le 01/08/2011 14:47, Gabriele Fatigati a écrit : > Hi Brice, > > so, if I inderstand well, PU P# numbers are not the same specified > as HWLOC_OBJ_PU flag? > > 2011/8/1 Brice Goglin <brice.gog...@inria.fr > <mailto:brice.gog...@inria.fr>> > > Le 01/08/2011 12:16, Gabriele Fatigati a écrit : > > Hi, > > > > reading a hwloc-v1.2-a4 manual, on page 15, i look an example > > with 4-socket 2-core machine with hyperthreading. > > > > Core id's are not exclusive as said before. PU's id are > exclusive but > > not physically sequential (I suppose) > > > > PU P#0 is in socket P#0 on Core P#0. PU P#1 is in another socket! > > These indexes are "physical indexes" (that's the default in the > graphical lstopo output). But we may want to make that clearer in > the doc. > > Brice > > > > > -- > Ing. Gabriele Fatigati > > Parallel programmer > > CINECA Systems & Tecnologies Department > > Supercomputing Group > > Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy > > www.cineca.it <http://www.cineca.it> Tel: +39 051 > 6171722 > > g.fatigati [AT] cineca.it <http://cineca.it>
