[RndTbl] reliable way of counting real CPUs under Linux?

Hi All, What would be the subj? Suppose you have a PC. It can have Intel or AMD CPUs. It can have HyperThreading on, and even enabled. And it can have one or two, or several sockets. Would there be a universal method to count real physical cores? Say, passing /proc/cpuinfo through a magic filter, and not failing on AMD Opterons too? -- Grigory Shamov HPC Analyst, Westgrid/Compute Canada E2-588 EITC Building, University of Manitoba (204) 474-9625