Assertion failure / variable not in memory space

Accelerated Computing CUDA CUDA Programming and Performance
1

So, I started using cuda today attempting to write a quick application to test performance and have run into this problem:

1>### Assertion failure at line 793 of …/…/be/cg/NVISA/exp_loadstore.cxx:

1>### Compiler Error in file C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/tmpxft_00001040_00000000-4.i during Code_Expansion phase:

1>### variable not in memory space

It seems that other people are having this problem and that it’s possibly a known bug.

Is there any way to get around this issue for now?

My code’s quite long so, I don’t know how readable it’d be if I posted it, but here’s the section in question.

 for (i=2; i<13; i++)

  {

    c=0;

    for (j=0; j<6; j++)

    {

      c<<=1;

      if (bb[y] & u) c|=1;

      u>>=1;

      if (!u)

      {

        y++;

        u=0x80;

      }

      //result_space[0] = my_cov_2char[c];

    }

    

  }

If I uncomment the result_space assignment (result_space is of type char*), I will get the error posted above. Any suggestions anyone has would be very helpful.

2

Is result_space or my_cov_2char somehow pointed to a string, a global, or an initialized array?
They currently do not handle variables in .data or .bss on device, and using them would get this assertion failed.

3

Thanks that fixed the problem. Sorry about that. If there’s a basic FAQ/tutorial other than the examples in the SDK you can direct me to that would also be helpful.