A bunch of cores or hyper threads

[Golda]

Hello all, I am running a small program (80kb) that calculates prime numbers. I am trying to figure out how to access a separate thread or core on the Intel or AMD processor. When I open a prime program it runs well however when I open a second prime program both programs run a half speed. I am planning a build and I do not want to buy a bunch of cores or hyper threads and not be able to use them. Thank you for what ever suggestions you may have. Golda

[zburns]

Your ability to access multiple cores and/or threads is dependent on how well it, software, is written regards 'supporting' multiple cores and/or hyperthreading. If the program is some years old, and not a 'high' sales item for the software company, it may only support one core and no hyperthread. If hyperthreading is used, that feature is specific to a cpu. Not all multiple core cpus have hyperthreading.