qcg/service.py

   1 import logging
   2 import time
   3
   4 from django.db import transaction
   5 from django.utils.timezone import now
   6 from pyqcg import QCG
   7 from pyqcg.description import JobDescription
   8 from pyqcg.service import Registry
   9 from pyqcg.utils import Credential, TimePeriod
  10
  11
  12 logger = logging.getLogger(__name__)
  13
  14
  15 @transaction.atomic
  16 def update_user_data(user, proxy):
  17     ts = time.time()
  18     QCG.start()
  19     from qcg.models import User, Job, Task, Allocation, NodeInfo
  20
  21     credential = Credential(proxy)
  22     registry = Registry(credential)
  23
  24     # put lock on user record (hopefully..?)
  25     user = User.objects.select_for_update().get(pk=user.pk)
  26
  27     changed_filter = {'changed': TimePeriod(after=user.last_update)}
  28
  29     ###################################
  30     # Jobs
  31     ###################################
  32     jts = time.time()
  33     jobs = registry.jobs(**changed_filter)
  34     jte = time.time()
  35
  36     jobs_count = 0
  37     for qcg_job in jobs:
  38         params = Job.qcg_map(qcg_job, user)
  39         job_id = params.pop('job_id')
  40
  41         Job.objects.update_or_create(job_id=job_id, defaults=params)
  42         jobs_count += 1
  43
  44     ###################################
  45     # Tasks
  46     ###################################
  47     tts = time.time()
  48     tasks = registry.tasks(**changed_filter)
  49     tte = time.time()
  50
  51     jobs_cache = {j.job_id: j for j in Job.objects.filter(owner=user)}
  52     task_count = 0
  53     for qcg_task in tasks:
  54         params = Task.qcg_map(qcg_task, jobs_cache)
  55         task_id = params.pop('task_id')
  56
  57         task, created = Task.objects.update_or_create(job__job_id=qcg_task.job_id, task_id=task_id, defaults=params)
  58
  59         if not created:
  60             task.allocations.all().delete()
  61
  62         for qcg_alloc in qcg_task.allocations:
  63             alloc = task.allocations.create(**Allocation.qcg_map(qcg_alloc))
  64
  65             for qcg_node in qcg_alloc.nodes:
  66                 alloc.nodes.create(**NodeInfo.qcg_map(qcg_node))
  67
  68         task_count += 1
  69
  70     # release user lock
  71     user.last_update = now()
  72     user.save()
  73
  74     elapsed = time.time() - ts
  75     elapsed_jobs = jte - jts
  76     elapsed_tasks = tte - tts
  77     elapsed_py = elapsed - elapsed_jobs - elapsed_tasks
  78     logger.info('(%.3f) USER = %s, JOBS = %s (%.3f), TASKS = %s (%.3f), TIME = %.3f',
  79                 elapsed, user, jobs_count, elapsed_jobs, task_count, elapsed_tasks, elapsed_py)
  80
  81
  82 def submit_job(params, proxy):
  83     # print params
  84
  85     QCG.start()
  86     desc = JobDescription(Credential(proxy))
  87
  88     direct_map = ('env_variables', 'executable', 'arguments', 'note', 'grant', 'hosts', 'properties', 'queue', 'procs',
  89                   'wall_time', 'memory', 'memory_per_slot', 'modules', 'native', 'notify', 'preprocess', 'postprocess',
  90                   'persistent')
  91
  92     for name in direct_map:
  93         if params[name]:
  94             setattr(desc, name, params[name])
  95
  96     if params['application']:
  97         desc.set_application(*params['application'])
  98     if params['nodes']:
  99         desc.set_nodes(*params['nodes'])
 100     if params['reservation']:
 101         desc.set_reservation(params['reservation'])
 102     if params['watch_output']:
 103         desc.set_watch_output(params['watch_output'], params['watch_output_pattern'])
 104     # TODO script
 105     # TODO executable
 106     # TODO input
 107     # TODO stage_in
 108     # TODO stage_out
 109     # TODO monitoring
 110
 111     # for prop in direct_map + ('application', 'nodes', 'env_variables', 'reservation', 'watch_output'):
 112     #     print prop, type(getattr(desc, prop)), repr(getattr(desc, prop))
 113
 114     # print desc.xml_description
 115
 116     # job = desc.submit()
 117
 118     # return job.job_id