Yep, this lists the capabilities of the CPU, not if they are in use. Chris
-----Original Message----- From: [EMAIL PROTECTED] on behalf of Preston Smith Sent: Thu 02-Mar-06 09:04 To: Alex Balk Cc: ganglia-developers@lists.sourceforge.net Subject: Re: [Ganglia-developers] hyperthreading & cpu_num patch. "ht" does appear in /proc/cpuinfo, but it always seems to be there.. For example, one of our clusternodes reports: $ grep " ht " /proc/cpuinfo flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm ferr syscall nx lm sse3 monitor ds-cpl cnxt-id This node has hyperthreaded processors, but ht is disabled in the bios. Perhaps that flag indicates only ht capability, not so much whether it's used or not. -Preston On Mar 2, 2006, at 11:58 AM, Alex Balk wrote: > You present some valid points there. > > I think we could first obtain a value via get_nprocs() and then try to > do some intelligent parsing on our own. If we get a bad value we can > just fallback to what we got from get_nprocs(). > > The main issue here is indeed differences between architectures. Also, > lets not forget our platform may not be Linux and /proc may not > exist at > all. > > > As for HT being present, if it's there htt (or was it ht?) would > appear > in "flags". > -- Preston Smith <[EMAIL PROTECTED]> Systems Research Engineer Rosen Center for Advanced Computing, Purdue University ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-developers
