On Aug 17 12:42, Achim Gratz wrote: > Achim Gratz NexGo.DE> writes: > > Corinna Vinschen cygwin.com> writes: > > > Uhm... one last question? What's the output of `lscpu'? > > > > Not available on Cygwin and I don't have access to a Linux box with that > > processor. I can ask, but it'll take some time. > > No Linux on bare metal with Bulldozer/Piledriver, only an older K10 > MagnyCours / Opteron 6174: > > Architecture: x86_64 > CPU op-mode(s): 32-bit, 64-bit > Byte Order: Little Endian > CPU(s): 24 > On-line CPU(s) list: 0-23 > Thread(s) per core: 1 > Core(s) per socket: 12 > Socket(s): 2 > NUMA node(s): 4 > Vendor ID: AuthenticAMD > CPU family: 16 > Model: 9 > Stepping: 1 > CPU MHz: 2200.091 > BogoMIPS: 4400.10 > Virtualization: AMD-V > L1d cache: 64K > L1i cache: 64K > L2 cache: 512K > L3 cache: 5118K > NUMA node0 CPU(s): 0,2,4,6,8,10 > NUMA node1 CPU(s): 12,14,16,18,20,22 > NUMA node2 CPU(s): 1,3,5,7,9,11 > NUMA node3 CPU(s): 13,15,17,19,21,23 > > I don't have access to that system, so unfortunately I can't run your program. No worries and thank you. I just don't quite understand the stuff returned by 8000001e and what I see above. Do I understand this correctly that a single CPU has 2 NUMA nodes? Does that mean a single HW socket consists of two independent 6 core CPUs? Well, anyway, I just got remote access to a 2 socket systems with Opteron 6386SE CPUs. It's installing rhel7 right now so I might get another clue from there. Thanks, Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat