GUI - Preferences

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Before starting with a simulation you should once check the program preferences from the menu Setup / Preferences. The preference dialog as show by the screenshot below allows to setup the computation options and switch on and off user prompts.

Dr. Probe preferences dialog.

The computation options define the number of processes used for calculations on CPU as well as which GPU device to use. By setting the number of CPU processes to 0, the calculations will be performed on the GPU alone if selected. Nevertheless, one CPU process is still running to post-process the data produced by the GPU.

A separate selection for the number of CPU processes is made for the calculation of transmission functions, because this calculation is done on CPU only.

CPU threads

At minimum one CPU process will be used in any case for managing the calculation and another one for performing the multislice if no GPU device is selected. At maximum you can select as many CPU threads as available CPUs on your system. However, it is highly recommended to leave a few CPUs free for the system and manager process. Start with 1/2 of available CPUs and increase stepwise if the CPU load is far from 100 % during a calculation (check with task manager). Observe the calculation time, often using full CPU load is not the fastest solution.

GPU selection

GPU devices supported by the runtime provided with Dr. Probe will be listed in the respective drop-down list. The list displays the device names, total device memory in GB and the device compute class. Multiple device computing is not supported, only the selected device will be used. Setting the GPU device to "None" means, that the calculations will be performed on the CPU only.

 

Last update: June 16, 2021    contact    disclaimer(de)