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There are essentially two points the anti-corers hit on. There is actually some argument about this, although there is a pretty strong consensus among experts that you should use all your cores.

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This page on the Microsoft Developer website has a full list of affinities. You can change this depending on how many cores you have – ‘affinity 3’ for CPU1 and so on.

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Where you see ‘affinity 1’, this tells Windows to use CPU0.

Run the Batch file you just made to launch the program.

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Save it to the program install location you specified in Step 2.

Save the file with a meaningful name and add “.bat” to the end.

Type without quotes and change PROGRAM to the name of the specific program you’re trying to control. You shouldn’t need to use it but if you do… There is a useful batch file you can create that can force processor affinity for particular programs. Check the lower right of the panel under Cores.Select Ctrl + Shift + Esc to bring up Task Manager.If you want to know how many physical cores your processor has try this: This is because hyperthreading effectively doubles your cores, with four real and four virtual. For example, if you are running an Intel i7 CPU with 4 cores, you’ll have 8 listed in the Affinity window. You may notice that twice as many cores are listed than you have. This is because Windows is configured to utilize all cores whenever a program has the ability to use them. If you are using Windows 10, the box next to “Number of processors” will normally be unchecked. Check the box next to Number of processors and select the number of cores you want to use (probably 1, if you are having compatibility issues) from the menu.Select the Boot tab and then Advanced options.Type ‘msconfig’ into the Windows Search Box and hit Enter.

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The only time you would use this technique is to limit cores, whether for software compatibility reasons or otherwise. If you’re using Windows 10, all of your processor cores will be fully utilized by default if your BIOS/UEFI is set correctly. In any newer version of Windows, however, multi-core support is automatically turned on you can adjust your settings to use fewer cores if necessary to fix a software compatibility reason, but this is exceptionally rare. For older versions of Windows, such as Windows XP, you might need to change a system setting in your BIOS in order to get multi-core functionality working. The answer is that it really depends on the version of Windows you are running. One question we’re commonly asked at TechJunkie is whether you need to do anything in order to make full use of multi-core CPUs on your computer. However, fortunately, almost all modern operating systems and many resource-heavy programs such as Adobe Premiere are able to take advantage of the extra cores, and as a result, run more quickly and efficiently than they would otherwise. However, the effectiveness of this technique depends on the operating system you’re running as well as the specific application you’re running many operating systems and applications used to not be able to take advantage of multiple cores and would, as a result, not see any measurable advantage from the extra cores.

The reasoning behind having more cores on a CPU is that it can often be advantageous to split computing tasks between multiple cores rather than one massive one in order to allow it to finish more quickly and efficiently. A core is essentially an entire CPU, so a multi-core processor is like putting several CPUs together and having them work in tandem. Each core has its own processing hardware and cache, and is connected to the rest of the CPU through the chip’s shared memory and the system bus. A processor core is an independent processing unit on the overall physical processor chip.

Comsol 5.1 start to use both cores