Speeding Grasshopper requires what?

Replies to This Discussion

Permalink Reply by Mateusz Zwierzycki on May 4, 2012 at 7:41pm

Iam not a specialist, but as far as I know :

For geometry display you need graphic card (thats how 3ds max works, but maybe cpu in rhino is used for this purpose)

For calculations - cpu... but if you have a lot of calulations to do, even newest xeon will stuck..

to operate with large amount of geometry - ram memory.

So :

- if you have a large amount of geometry and some simple operations to do (move etc) first you need to get large amount of ram and second good gpu

- if you have some complicated stuff to calculate - (100 000 of 3d voronoi, branching systems etc.) you need a good cpu

But thats how I see it, not sure if Iam right..

Permalink Reply by David Rutten on May 5, 2012 at 12:37am

Mateusz is right.

If your Rhino display has a slow framerate, then you're best off investing into a better graphics card. If your memory is not sufficient (2GB sounds a bit on the low side) then get some more RAM. And switch to Rhino5 64-bit if you can, I recommend a 64-bit platform with at least 8GB of fast RAM. If Grasshopper calculation times are slow, then you'll need to get a faster processor BUT note that the vast majority of Grasshopper calculations happen on a single CPU and therefore there is little point in getting more CPUs. Be very careful you don't get a whole bunch of CPUs bundled together who amongst themselves provide lots of computing power.

A quad-core with 3.2 Ghz = 0.8Ghz per CPU. A dual-core with 2.0Ghz = 1.0Ghz per CPU, which is better for Rhino and Grasshopper.

--

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by michael sprinzl on May 5, 2012 at 2:35am

some instance changes can be done by

- changing the preview mode

- change the viewports what you see only a part of you Rhinomodel

if you work with realy big data you can put only one information to grasshopper at a time, you need a baker at the end of the grasshopper definition

 private void RunScript(bool start, int length, ref object out_number_to_process)
  {

    if(start)
    {
      if(reset == true)
      {
        counter = -1;
      }
      else
      {
        counter++;
      }
    }
    if(!start)
    {
      reset = false;
      counter = -1;
    }
    if(counter >= length)
    {
      reset = true;
    }

    out_number_to_process = counter;

  }

and at <Custom additional code>

  static bool reset = false;
  static int counter = -1;

this is for the realy big definitions

Permalink Reply by djordje on May 5, 2012 at 4:13am

Thank you for the replies, all of you.

Michael, can you attach the .gh definition, please?

Thank you.

Permalink Reply by djordje on May 5, 2012 at 4:35am

Or you do now even have to attach it, if you show me how to make a C# component, and insert the code you posted, in it.

Permalink Reply by djordje on May 7, 2012 at 4:38pm

Simple pasting the above code in "C#" components "Edit source" window, did not work.

Can somebody show me how the past this code into the C# component?