not_enough_threads.c

Go to the documentation of this file.

// clang-format off
// RUN: %libomp-compile && env OMP_THREAD_LIMIT=2 %libomp-run | FileCheck %s
// RUN: %libomp-compile && env OMP_THREAD_LIMIT=2 %libomp-run | %sort-threads \
// RUN:     | FileCheck --check-prefix=THREADS %s
 
// REQUIRES: ompt
// clang-format on
 
#include "callback.h"
 
int main() {
#pragma omp parallel num_threads(4)
  {
    print_ids(0);
    print_ids(1);
  }
  print_fuzzy_address(1);
 
  // clang-format off
  // Check if libomp supports the callbacks for this test.
  // CHECK-NOT: {{^}}0: Could not register callback
 
  // Make sure initial data pointers are null.
  // CHECK-NOT: 0: parallel_data initially not null
  // CHECK-NOT: 0: task_data initially not null
  // CHECK-NOT: 0: thread_data initially not null
 
  // Only check callback names, arguments are verified in THREADS below.
  // CHECK: {{^}}[[MASTER_ID:[0-9]+]]: ompt_event_parallel_begin
 
  // CHECK-DAG: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_begin
  // CHECK-DAG: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end
 
  // Note that we cannot ensure that the worker threads have already called
  // barrier_end and implicit_task_end before parallel_end!
 
  // CHECK-DAG: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin
  // CHECK-DAG: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin
 
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_parallel_end
 
  // THREADS: 0: NULL_POINTER=[[NULL:.*$]]
  // THREADS: {{^}}[[MASTER_ID:[0-9]+]]: ompt_event_thread_begin
  // THREADS-SAME: thread_type=ompt_thread_initial=1, thread_id=[[MASTER_ID]]
  // THREADS: {{^}}[[MASTER_ID]]: ompt_event_parallel_begin
  // THREADS-SAME: parent_task_id=[[PARENT_TASK_ID:[0-f]+]]
  // THREADS-SAME: parent_task_frame.exit=[[NULL]]
  // THREADS-SAME: parent_task_frame.reenter={{(0x)?[0-f]+}}
  // THREADS-SAME: parallel_id=[[PARALLEL_ID:[0-f]+]], requested_team_size=4
  // THREADS-SAME: codeptr_ra=[[RETURN_ADDRESS:(0x)?[0-f]+]]{{[0-f][0-f]}}
 
  // THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_begin
  // THREADS-SAME: parallel_id=[[PARALLEL_ID]]
  // THREADS-SAME: task_id=[[IMPLICIT_TASK_ID:[0-f]+]]
  // THREADS: {{^}}[[MASTER_ID]]: task level 0
  // THREADS-SAME: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
  // THREADS: {{^}}[[MASTER_ID]]: task level 1
  // THREADS-SAME: parallel_id=[[IMPLICIT_PARALLEL_ID:[0-f]+]]
  // THREADS-SAME: task_id=[[PARENT_TASK_ID]]
 
  // THREADS-NOT: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end
  // THREADS: {{^}}[[MASTER_ID]]: ompt_event_barrier_implicit_parallel_begin
  // THREADS-SAME: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
  // parallel_id is 0 because the region ended in the barrier!
  // THREADS: {{^}}[[MASTER_ID]]: ompt_event_barrier_implicit_parallel_end
  // THREADS-SAME: parallel_id=0, task_id=[[IMPLICIT_TASK_ID]]
  // THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end
  // THREADS-SAME: parallel_id=0, task_id=[[IMPLICIT_TASK_ID]]
  // THREADS: {{^}}[[MASTER_ID]]: ompt_event_parallel_end
  // THREADS-SAME: parallel_id=[[PARALLEL_ID]], task_id=[[PARENT_TASK_ID]]
  // THREADS: {{^}}[[MASTER_ID]]: fuzzy_address={{.*}}[[RETURN_ADDRESS]]
 
  // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_thread_begin
  // THREADS-SAME: thread_type=ompt_thread_worker=2, thread_id=[[THREAD_ID]]
  // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin
  // THREADS-SAME: parallel_id=[[PARALLEL_ID]]
  // THREADS-SAME: task_id=[[IMPLICIT_TASK_ID:[0-f]+]]
  // THREADS: {{^}}[[THREAD_ID]]: task level 0
  // THREADS-SAME: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
  // THREADS: {{^}}[[THREAD_ID]]: task level 1
  // THREADS-SAME: parallel_id=[[IMPLICIT_PARALLEL_ID]]
  // THREADS-SAME: task_id=[[PARENT_TASK_ID]]
  // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
  // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin
  // THREADS-SAME: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
  // parallel_id is 0 because the region ended in the barrier!
  // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_end
  // THREADS-SAME: parallel_id=0, task_id=[[IMPLICIT_TASK_ID]]
  // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
  // THREADS-SAME: parallel_id=0, task_id=[[IMPLICIT_TASK_ID]]
  // clang-format on
 
  return 0;
}