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Full Discussion: No of CPU's and No of Core
Operating Systems Linux Red Hat No of CPU's and No of Core Post 302760061 by Corona688 on Wednesday 23rd of January 2013 10:09:56 AM
Old 01-23-2013
Hyperthreading does not give you more cores, even though the OS needs to track them as such.

So, one chip, four physical cores.
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PAPI_hw_info_t(3)						       PAPI							 PAPI_hw_info_t(3)

NAME
PAPI_hw_info_t - Hardware info structure. SYNOPSIS
Data Fields int ncpu int threads int cores int sockets int nnodes int totalcpus int vendor char vendor_string [128] int model char model_string [128] float revision int cpuid_family int cpuid_model int cpuid_stepping int cpu_max_mhz int cpu_min_mhz PAPI_mh_info_t mem_hierarchy int virtualized char virtual_vendor_string [128] char virtual_vendor_version [128] float mhz int clock_mhz int reserved [8] Field Documentation int PAPI_hw_info_t::clock_mhz Deprecated int PAPI_hw_info_t::cores Number of cores per socket int PAPI_hw_info_t::cpu_max_mhz Maximum supported CPU speed int PAPI_hw_info_t::cpu_min_mhz Minimum supported CPU speed int PAPI_hw_info_t::cpuid_family cpuid family int PAPI_hw_info_t::cpuid_model cpuid model int PAPI_hw_info_t::cpuid_stepping cpuid stepping PAPI_mh_info_t PAPI_hw_info_t::mem_hierarchy PAPI memory heirarchy description float PAPI_hw_info_t::mhz Deprecated int PAPI_hw_info_t::model Model number of CPU char PAPI_hw_info_t::model_string[128] Model string of CPU int PAPI_hw_info_t::ncpu Number of CPUs per NUMA Node int PAPI_hw_info_t::nnodes Total Number of NUMA Nodes float PAPI_hw_info_t::revision Revision of CPU int PAPI_hw_info_t::sockets Number of sockets int PAPI_hw_info_t::threads Number of hdw threads per core int PAPI_hw_info_t::totalcpus Total number of CPUs in the entire system int PAPI_hw_info_t::vendor Vendor number of CPU char PAPI_hw_info_t::vendor_string[128] Vendor string of CPU char PAPI_hw_info_t::virtual_vendor_string[128] Vendor for virtual machine char PAPI_hw_info_t::virtual_vendor_version[128] Version of virtual machine int PAPI_hw_info_t::virtualized Running in virtual machine Author Generated automatically by Doxygen for PAPI from the source code. Version 5.2.0.0 Tue Jun 17 2014 PAPI_hw_info_t(3)
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