starpu-max/tools/valgrind/starpu.suppr

# StarPU --- Runtime system for heterogeneous multicore architectures.
#
# Copyright (C) 2013-2016  Université de Bordeaux
# Copyright (C) 2012       CNRS
# Copyright (C) 2012       INRIA
#
# StarPU is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or (at
# your option) any later version.
#
# StarPU is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# See the GNU Lesser General Public License in COPYING.LGPL for more details.
#

{
   don't care about cache hit stats
   Helgrind:Race
   fun:_starpu_msi_cache_hit
   ...
}

{
   don't care about cache miss stats
   Helgrind:Race
   fun:_starpu_msi_cache_miss
   ...
}

{
   known race, but not problematic in practice, see comment in _starpu_tag_clear
   Helgrind:LockOrder
   ...
   fun:_starpu_tag_free
   fun:_starpu_htbl_clear_tags
   ...
   fun:_starpu_tag_clear
   fun:starpu_shutdown
   ...
}


{
   There is actually no race on current_mode, because the mode can not change unexpectedly, until _starpu_notify_data_dependencies() is called further down. Valgrind can not know about such software rwlock.
   Helgrind:Race
   fun:_starpu_release_data_on_node
   fun:_starpu_push_task_output
   ...
}

{
   We do not care about races on profiling statistics
   Helgrind:Race
   fun:_starpu_worker_get_status
   fun:_starpu_worker_reset_profiling_info_with_lock
   ...
}

{
   This is racy, but since we'll always put the same values, this is not a problem.
   Helgrind:Race
   fun:_starpu_codelet_check_deprecated_fields
   ...
}

{
   This is racy, but we don't care, it's only a statistic
   Helgrind:Race
   fun:starpu_task_nsubmitted
   ...
}

{
   This is racy, but we don't care, it's only a statistic
   Helgrind:Race
   fun:starpu_task_nready
   ...
}

{
   This is racy, but we don't care, it's only a statistic
   Helgrind:Race
   fun:_starpu_bus_update_profiling_info
   ...
}

{
   fscanf error
   Memcheck:Cond
   ...
   fun:fscanf
   fun:_starpu_load_bus_performance_files
   ...
}

{
   mc / handle locking order. We always take handle before mc, except when we tidy memory, where we use trylock, but helgrind doesn't handle that :/ https://bugs.kde.org/show_bug.cgi?id=243232
   Helgrind:LockOrder
   fun:mutex_trylock_WRK
   fun:__starpu_spin_trylock
   ...
}

{
   mc / handle locking order1
   Helgrind:LockOrder
   ...
   fun:__starpu_spin_lock
   fun:try_to_free_mem_chunk
   ...
}

{
   mc / handle locking order2
   Helgrind:LockOrder
   ...
   fun:__starpu_spin_lock
   fun:try_to_find_reusable_mem_chunk
   ...
}

{
   mc / handle locking order3
   Helgrind:LockOrder
   ...
   fun:__starpu_spin_lock
   fun:free_potentially_in_use_mc
   ...
}

{
   mc / handle locking order4
   Helgrind:LockOrder
   ...
   fun:__starpu_spin_lock
   fun:free_potentially_in_use_mc
   ...
}

{
   mc / handle locking order5
   Helgrind:LockOrder
   ...
   fun:__starpu_spin_lock
   fun:register_mem_chunk
   ...
}

{
   mc / handle locking order6
   Helgrind:LockOrder
   ...
   fun:__starpu_spin_lock
   fun:_starpu_request_mem_chunk_removal
   ...
}

{
   mc / handle locking order7
   Helgrind:LockOrder
   ...
   fun:__starpu_spin_lock
   fun:_starpu_allocate_interface
   ...
}

{
   mc / handle locking order8
   Helgrind:LockOrder
   ...
   fun:__starpu_spin_lock
   fun:_starpu_memchunk_recently_used
   ...
}

{
   TODO1: This is temporary. It perhaps does not pose problem because only the worker takes this mutex. Fixing this will require changing the scheduler interface, so that the schedulers themselves take the scheduling lock, not the caller. Filter it out for now, so we can see other races more easily.
   Helgrind:LockOrder
   fun:mutex_lock_WRK
   fun:simple_worker_pull_task
   ...
}

{
   TODO1: This is temporary. It perhaps does not pose problem because only the worker takes this mutex. Fixing this will require changing the scheduler interface, so that the schedulers themselves take the scheduling lock, not the caller. Filter it out for now, so we can see other races more easily.
   Helgrind:LockOrder
   fun:mutex_lock_WRK
   fun:starpu_pthread_mutex_lock_sched
   fun:_starpu_sched_component_worker_lock_scheduling
   fun:simple_worker_pull_task
   ...
}

{
   TODO2: This is temporary. It perhaps does not pose problem because only the worker takes this mutex. Fixing this will require changing the scheduler interface, so that the schedulers themselves take the scheduling lock, not the caller. Filter it out for now, so we can see other races more easily.
   Helgrind:LockOrder
   fun:mutex_lock_WRK
   fun:_starpu_sched_component_lock_worker
   fun:simple_worker_pull_task
   ...
}

{
   TODO2: This is temporary. It perhaps does not pose problem because only the worker takes this mutex. Fixing this will require changing the scheduler interface, so that the schedulers themselves take the scheduling lock, not the caller. Filter it out for now, so we can see other races more easily.
   Helgrind:LockOrder
   fun:mutex_lock_WRK
   fun:_starpu_sched_component_lock_worker
   fun:_starpu_sched_component_worker_lock_scheduling
   fun:simple_worker_pull_task
   ...
}