[Starpu-devel] starpu_codelet must be global?

[Miguel Palhas <mpalhas@gmail.com>]

I'm trying to mess around with the initial examples of starpu, and came across a strange error

The original sample declares a global variable, struct starpu_codelet cl. I tried to make this variable local to the main function, basically doing this:

// this is the old variable, commented out

// struct starpu_codelet cl;

int main() {

  ...

  // and this is the new one

  struct starpu_codelet cl;

  cl.where = STARPU_CPU

  cl.cpu_funcs[0] = cpu_func;

  cl.cpu_funcs[1] = NULL;

  cl.nbuffers = 0;

This version crashes with the following error:

[1]    26482 illegal hardware instruction  ./a.out

but if i just switch the comments and use the global variable instead, it all goes well again.

I'm actually fine with this requirement, i just wanted to know if this is to be expected, and why?

--
Best Regards

Miguel Palhas