9/10/2023 0 Comments Get cpuinfo linux![]() Product: 82G35 Express Integrated Graphics Controller Ĭapabilities: vga_controller bus_master cap_list rom WARNING: you should run this program as super-user. The lshw command can also be used to get the above information. Now you can search google for more details using the Vendor name and the pci id. ![]() The first part (8086) indicates the vendor id (which is Intel here) and the second number (2982) indicates the pci id, which indicates the model of the graphics unit. Such a number is present for almost all graphics card. Note the numbers in the bracket - 8086:2982. VGA compatible controller : Intel Corporation 82G35 Express Integrated Graphics Controller The first line has the nae of the vendor, the model name/series and the pci id. Memory at d0000000 (64-bit, prefetchable) Memory at e0200000 (32-bit, non-prefetchable) ![]() Subsystem: Intel Corporation Device įlags: bus master, fast devsel, latency 0, IRQ 44 $ lspci -vnn | grep VGA -A 12Ġ0:02.0 VGA compatible controller : Intel Corporation 82G35 Express Integrated Graphics Controller (rev 03) (prog-if 00 ) First one is lscpi and here is a quick example showing how to fetch details about graphics unit (also called vga card or video card). But here we shall be using commands to find out the same information. Ofcourse, its easier if you have the hardware manual that came along when you purchased the computer. processor: Intel(R) Core(TM) i7-3740QM CPU 2.So if you have an external graphics card like Nvidia or Ati, then you need to find the model name/number and then lookup further details online.thread or virtual core: number of threads that can run on parallel on one CPU if the (intel-)processor is able to perform hyperthreading the number of virtual cores is twice the number of physical cores (I am not sure how other processor vendors call this feature).core or physical core: number of physical calculation units in the CPU.processor: the whole piece of hardware (e.g.Since everyone uses cores, CPU and processor in another context, I introduce a nomenclature for my answer here: Thus, "number behind cpu cores" x "number behind physical id + 1" is the number of physical cores one our node (8 x (3 + 1)). > cat /proc/cpuinfo | grep "physical id" | tail -1 > cat /proc/cpuinfo | grep -c "cpu cores" This is the output I get: > cat /proc/cpuinfo | grep -m 1 "cpu cores" If we have such a setup, we need to consider the row physical id in cat /proc/cpuinfo. Thus, we get 64 'packages' of information. I just looked onto one node of a computing cluster, on which I am currently working: 1 node has 4 CPUs (Intel Xeon) with each 8 physical cores each CPU supports hyptherthreading therefore, each CPU has 16 virtual cores summing it up, the one node has 32 physical and 64 virtual cores Ĭat /proc/cpuinfo prints out information for each virtual core. You could also take the last found processor number and increment it by one > cat /proc/cpuinfo | grep "processor" | tail -1 Number of virtual cores: > cat /proc/cpuinfo | grep -l "cpu cores" Number of physical cores: > cat /proc/cpuinfo | grep -m 1 "cpu cores" Lets see what I get: > cat /proc/cpuinfo | grep "cpu cores" I have got a Intel(R) Core(TM) i7-3740QM CPU 2.70GHz (4 physical cores, hyperthreading). Thus, if you want to have the number of physical core, you just take the first occurrence of the line cpu cores, which is > cat /proc/cpuinfo | grep -m 1 "cpu cores"Īlternatively, if you are looking for the number of virtual cores, you count the number of times the line cpu cores is found, which is > cat /proc/cpuinfo | grep -c "cpu cores" But it prints out this information for each virtual core. ![]() The command cat /proc/cpuinfo should print out the number of physical cores in the line cpu cores. This may be the case if you work on a computing cluster or on a high-end desktop workstation for CAD/Engineering-purposes. See section "Several CPUs per mainboard". If you have more than one CPU/processor (in this sense) on your mainboard this does not properly work. 2x number of physical cores with hyper threading): > cat /proc/cpuinfo | grep -c "cpu cores" The number of physical cores: > cat /proc/cpuinfo | grep -m 1 "cpu cores" ![]()
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