Andreas, 

Thank you for help, especially so quick responding!

I try change you make, with "unsigned"  but I have same error as few of my attempt as well, there is problem with computation not being accurate:

number of registers used: 9
Traceback (most recent call last):
  File "DemoMetaMatrixmulCheetah.py", line 150, in <module>
    assert error <= 1e-2, error
AssertionError: 64.2192

I am use most recent pycuda with most recent cuda (3.2) with OSX 10.6.    when you are saying "what compiler" I am not sure exactly your meaning?   

-Tob




On Tue, Feb 8, 2011 at 6:11 PM, Andreas Kloeckner <lists@informa.tiker.net> wrote:
On Tue, 8 Feb 2011 16:30:19 -0500, Tobjan Brejicz <tobangi@gmail.com> wrote:
> Hello again,
>
> Thank you for quick reply before.  This was very helping, I now run things
> correctly on that example.
>
> But here is one new question I have.    I am trying example
> "DemoMetaMatrixmulCheetah.py".
>
> So the error is:
>
>        error: identifier "uint" is undefined

Weird, works for me. What version of CUDA? What compiler? In any case,
replacing those by 'unsigned' should work. I've done that for the file
on the wiki. The new version works for me, too.

Andreas