Forums » CircuitLab Feature Requests

The time it takes to complete the simulations is pretty slow. I'm pretty sure my PC has more processing power than is being granted to me by the server. Could the processing not be done by my PC instead to yield quicker results?

Hi,

actually the simulation is computed within your PC, it is running in your browser using JavaScript, no server involved.

That said, the speed vastly depends on you used browser’s JavaScript performance (and PC speed, of course). Chrome should be best, see:

https://www.circuitlab.com/blog/2012/08/02/80-simulation-speedup-circuitlab-browser-shootout/

Check this circuit:

Start the (time domain) transient solver (F5) and see the result:

On my (old and slow) dual core Mac with Safari 5.1.7 it takes 193 seconds to solve before plotting, both cores are at reasonable load during that time.

Regards, Sancho

Oh, I see. My quad-core (AMD Phenom II X4 965) is less than half (about 40%) utilised during this time. Could something be done to use more of my processor's capacity?

Back to what I wrote before, your browser does the work.

(Which? Version? How long does it take?)

The (CL) JavaScript code has no direct access to your CPU, it is kinda interpreted (translated and run on time) by your browser - which itself is running within your operating system, concurring with other processes.