Dear Hwloc users and developers,
I'm using hwloc 1.4.1 on a multithreaded program in a Linux platform, where each thread bind many non contiguos pieces of a big matrix using in a very intensive way hwloc_set_area_membind_nodeset function: hwloc_set_area_membind_nodeset(topology, punt+offset, len, nodeset, HWLOC_MEMBIND_BIND, HWLOC_MEMBIND_THREAD | HWLOC_MEMBIND_MIGRATE); Binding seems works well, since the returned code from function is 0 for every calls. The problems is that after binding, a simple little new malloc fails, without any apparent reason. Disabling memory binding, the allocations works well. Is there any knows problem if hwloc_set_area_membind_nodeset is used intensively? Is there some operating system limit for memory pages binding? Thanks in advance. -- Ing. Gabriele Fatigati HPC specialist SuperComputing Applications and Innovation Department Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy www.cineca.it Tel: +39 051 6171722 g.fatigati [AT] cineca.it
