qcg/service.py

   1 import logging
   2 import time
   3
   4 from django.db import transaction
   5 from django.utils.functional import SimpleLazyObject
   6 from django.utils.timezone import now
   7 from pyqcg import QCG
   8 from pyqcg.description import JobDescription
   9 from pyqcg.service import Registry
  10 from pyqcg.utils import Credential, TimePeriod, JobStatus, TaskStatus
  11
  12
  13 logger = logging.getLogger(__name__)
  14
  15
  16 @transaction.atomic
  17 def update_user_data(user, proxy):
  18     ts = time.time()
  19     QCG.start()
  20     from qcg.models import User, Job, Task, Allocation, NodeInfo
  21
  22     credential = Credential(proxy)
  23     registry = Registry(credential)
  24
  25     # put lock on user record (hopefully..?)
  26     user = User.objects.select_for_update().get(pk=user.pk)
  27
  28     changed_filter = {'changed': TimePeriod(after=user.last_update)}
  29
  30     ###################################
  31     # Jobs
  32     ###################################
  33     jts = time.time()
  34     jobs = registry.jobs(stats=[v for k, v in vars(JobStatus).iteritems() if not k.startswith('__')],
  35                          **changed_filter)
  36     jte = time.time()
  37
  38     jobs_count = 0
  39     for qcg_job in jobs:
  40         params = Job.qcg_map(qcg_job, user)
  41         job_id = params.pop('job_id')
  42
  43         Job.objects.update_or_create(job_id=job_id, defaults=params)
  44         jobs_count += 1
  45
  46     ###################################
  47     # Tasks
  48     ###################################
  49     tts = time.time()
  50     tasks = registry.tasks(stats=[v for k, v in vars(TaskStatus).iteritems() if not k.startswith('__')],
  51                            **changed_filter)
  52     tte = time.time()
  53
  54     jobs_cache = SimpleLazyObject(lambda: {j.job_id: j for j in Job.objects.filter(owner=user)})
  55     task_count = 0
  56     for qcg_task in tasks:
  57         params = Task.qcg_map(qcg_task, jobs_cache)
  58         task_id = params.pop('task_id')
  59
  60         task, created = Task.objects.update_or_create(job__job_id=qcg_task.job_id, task_id=task_id, defaults=params)
  61
  62         if not created:
  63             task.allocations.all().delete()
  64
  65         for qcg_alloc in qcg_task.allocations:
  66             alloc = task.allocations.create(**Allocation.qcg_map(qcg_alloc))
  67
  68             for qcg_node in qcg_alloc.nodes:
  69                 alloc.nodes.create(**NodeInfo.qcg_map(qcg_node))
  70
  71         task_count += 1
  72
  73     # release user lock
  74     user.last_update = now()
  75     user.save()
  76
  77     elapsed = time.time() - ts
  78     elapsed_jobs = jte - jts
  79     elapsed_tasks = tte - tts
  80     elapsed_py = elapsed - elapsed_jobs - elapsed_tasks
  81     logger.info('(%.3f) USER = %s, JOBS = %s (%.3f), TASKS = %s (%.3f), TIME = %.3f',
  82                 elapsed, user, jobs_count, elapsed_jobs, task_count, elapsed_tasks, elapsed_py)
  83
  84
  85 def submit_job(params, proxy):
  86     QCG.start()
  87     desc = JobDescription(Credential(proxy))
  88
  89     direct_map = ('env_variables', 'executable', 'arguments', 'note', 'grant', 'hosts', 'properties', 'queue', 'procs',
  90                   'wall_time', 'memory', 'memory_per_slot', 'modules', 'input', 'stage_in', 'native', 'notify',
  91                   'preprocess', 'postprocess', 'persistent')
  92
  93     for name in direct_map:
  94         if params[name]:
  95             setattr(desc, name, params[name])
  96
  97     if params['application']:
  98         desc.set_application(*params['application'])
  99     if params['nodes']:
 100         desc.set_nodes(*params['nodes'])
 101     if params['reservation']:
 102         desc.set_reservation(params['reservation'])
 103     if params['watch_output']:
 104         desc.set_watch_output(params['watch_output'], params['watch_output_pattern'])
 105     # TODO script
 106     # TODO monitoring
 107
 108     # for prop in direct_map + ('application', 'nodes', 'env_variables', 'reservation', 'watch_output'):
 109     #     print prop, type(getattr(desc, prop)), repr(getattr(desc, prop))
 110
 111     # print desc.xml_description
 112
 113     job = desc.submit()
 114
 115     return job.job_id