[Starpu-devel] Conversion tasks

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

Witth the current version of the trunk, submission of conversion tasks 
are broken.

Here some backtraces.

(gdb) bt
#0  __GI___pthread_mutex_lock (mutex=0x7fffef567560) at 
pthread_mutex_lock.c:50
#1  0x00007fffef2c0612 in starpu_pthread_mutex_lock (mutex=0x40) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/common/thread.c:269
#2  0x00007fffef2be5e1 in _starpu_barrier_counter_increment 
(barrier_c=0x30) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/common/barrier_counter.c:94
#3  0x00007fffef2f1974 in 
_starpu_increment_nsubmitted_tasks_of_sched_ctx (sched_ctx_id=10) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/core/sched_ctx.c:828
#4  0x00007fffef2c4222 in _starpu_task_submit_conversion_task 
(task=0x795f70, workerid=0) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/core/task.c:636
#5  0x00007fffef2ec4a4 in _starpu_push_task_on_specific_worker 
(task=0x7958e0, workerid=0) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/core/sched_policy.c:245
#6  0x00007fffef2eccca in _starpu_push_task_to_workers (task=0x7958e0) 
at /home/nfurmento/softs/starpu/soft/starpu.git/src/core/sched_policy.c:420
#7  0x00007fffef2ecaa5 in _starpu_push_task (j=0x795ae0) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/core/sched_policy.c:376
#8  0x00007fffef2c2144 in _starpu_enforce_deps_and_schedule (j=0x795ae0) 
at /home/nfurmento/softs/starpu/soft/starpu.git/src/core/jobs.c:417
#9  0x00007fffef2c2f26 in _starpu_submit_job (j=0x795ae0) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/core/task.c:289
#10 0x00007fffef2c3c8b in starpu_task_submit (task=0x7958e0) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/core/task.c:537
#11 0x0000000000402601 in ram_to_cuda () at 
/home/nfurmento/softs/starpu/soft/starpu.git/tests/datawizard/interfaces/test_interfaces.c:455
#12 0x00000000004028a2 in run_cuda (async=1) at 
/home/nfurmento/softs/starpu/soft/starpu.git/tests/datawizard/interfaces/test_interfaces.c:585
#13 0x0000000000402b4c in run_async () at 
/home/nfurmento/softs/starpu/soft/starpu.git/tests/datawizard/interfaces/test_interfaces.c:706
#14 0x0000000000402e1a in run_tests (conf=0x609540) at 
/home/nfurmento/softs/starpu/soft/starpu.git/tests/datawizard/interfaces/test_interfaces.c:850
#15 0x0000000000403614 in main (argc=1, argv=0x7fffffffdff8) at 
/home/nfurmento/softs/starpu/soft/starpu.git/tests/datawizard/interfaces/multiformat/multiformat_interface.c:189

(gdb) bt
#0  __GI___pthread_mutex_lock (mutex=0x7fffef567560) at 
pthread_mutex_lock.c:50
#1  0x00007fffef2c0612 in starpu_pthread_mutex_lock (mutex=0x40) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/common/thread.c:269
#2  0x00007fffef2be5e1 in _starpu_barrier_counter_increment 
(barrier_c=0x30) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/common/barrier_counter.c:94
#3  0x00007fffef2f1974 in 
_starpu_increment_nsubmitted_tasks_of_sched_ctx (sched_ctx_id=10) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/core/sched_ctx.c:828
#4  0x00007fffef2c4222 in _starpu_task_submit_conversion_task 
(task=0x7fffd7136d20, workerid=2) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/core/task.c:636
#5  0x00007fffef2ed8c9 in _starpu_pop_task (worker=0x7fffef56c140) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/core/sched_policy.c:752
#6  0x00007fffef2fef04 in _starpu_get_worker_task (args=0x7fffef56c140, 
workerid=2, memnode=3) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/drivers/driver_common/driver_common.c:211
#7  0x00007fffef33745e in _starpu_cuda_driver_run_once 
(d=0x7fffeb5c3e80) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/drivers/cuda/driver_cuda.c:459
#8  0x00007fffef3376af in _starpu_cuda_worker (arg=0x7fffef56c140) at 
/home/nfurmento/softs/starpu/soft/starpu.git/src/drivers/cuda/driver_cuda.c:537
#9  0x00007fffee953e0e in start_thread (arg=0x7fffeb5c4700) at 
pthread_create.c:311
#10 0x00007fffee68795d in clone () at 
../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Looks like the mutex object has been destroyed too early.

Thanks,

Nathalie