[Starpu-devel] Problem with STARPU_PROLOGUE_CALLBACK_POP

[Nathalie Furmento <nathalie.furmento@labri.fr>]

All,

I am using the trunk version 12696, StarPU is configured with the options

--enable-quick-check --enable-debug --enable-verbose

I realised that in examples/callback/prologue.c when modifying the call 
to starpu_task_insert() to have a NULL codelet, i.e

int ret2 = starpu_task_insert(NULL,//&cl,
                      //STARPU_RW, handle,
                      STARPU_PROLOGUE_CALLBACK, prologue_callback_func,
                      STARPU_PROLOGUE_CALLBACK_ARG, x,
                      STARPU_PROLOGUE_CALLBACK_POP, 
pop_prologue_callback_func,
                      STARPU_PROLOGUE_CALLBACK_POP_ARG, 5,
                      0);

the function pop_prologue_callback_func does not get executed (it is 
executed with a non NULL codelet). By adding some printf in the code, it 
seems the following lines:

if(task->prologue_callback_pop_func)
task->prologue_callback_pop_func(task->prologue_callback_pop_arg);

at the end of the function struct starpu_task *_starpu_pop_task(struct 
_starpu_worker *worker) in sched_policy.c do not get executed for the 
given task.

Cheers,

Nathalie