/usr/lib/python2.7/dist-packages/asrun/repart.py is in code-aster-run 1.13.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#pylint: disable-msg=R0902
# ==============================================================================
# COPYRIGHT (C) 1991 - 2003 EDF R&D WWW.CODE-ASTER.ORG
# THIS PROGRAM IS FREE SOFTWARE; YOU CAN REDISTRIBUTE IT AND/OR MODIFY
# IT UNDER THE TERMS OF THE GNU GENERAL PUBLIC LICENSE AS PUBLISHED BY
# THE FREE SOFTWARE FOUNDATION; EITHER VERSION 2 OF THE LICENSE, OR
# (AT YOUR OPTION) ANY LATER VERSION.
#
# THIS PROGRAM 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
# GENERAL PUBLIC LICENSE FOR MORE DETAILS.
#
# YOU SHOULD HAVE RECEIVED A COPY OF THE GNU GENERAL PUBLIC LICENSE
# ALONG WITH THIS PROGRAM; IF NOT, WRITE TO EDF R&D CODE_ASTER,
# 1 AVENUE DU GENERAL DE GAULLE, 92141 CLAMART CEDEX, FRANCE.
# ==============================================================================
"""
Allow to manage jobs on several hosts according to the available
cpu and memory resources.
"""
import os
import traceback
from pprint import pprint, pformat
from asrun.common.i18n import _
from asrun.mystring import print3
from asrun.thread import Lock, Task, Dispatcher
from asrun.system import local_host
from asrun.common_func import get_tmpname
from asrun.common.utils import now
from asrun.common.rcfile import parse_config
_DBG_TRI = False
_DBG_CRIT = False
_DBG_ALLOC = False
def isnum(val):
"""Return True if `val` is a number."""
return type(val) in (int, long, float)
# constants
NORESOURCE, ALLOCATED, OVERLIMIT = [9001, 9002, 9003]
class ResourceManagerError(Exception):
"""Local exception"""
class ResourceManager:
"""Class to manage resources to run a lot of calculations of several hosts.
"""
lock = Lock()
def __init__(self, hostinfo):
"""Initializations.
"""
self.hostinfo = hostinfo.copy()
self.all_hosts = self.hostinfo.keys()
self.d_crit = {# numkey, default, reverse order
# criteria
'cpurun' : ('000_cpurun', 0, False, ),
'memrun' : ('010_memrun', 0, False, ),
# characteristics of hosts (constant)
'mem' : ('101_mem', 0, True, ),
'cpu' : ('102_cpu', 0, True, ),
'nomjob' : ('998_job', '', False, ),
'host' : ('999_host', '', False, ),
'user' : ('999_user', '', False, ),
}
self.l_crit = [(v[0], v[2]) for v in self.d_crit.values()]
self.l_crit.sort()
self.job_keys = [k for k, v in self.d_crit.items() if v[0] > '100_']
# build the list of all infos
self.infos = []
self.limit = {}
# to store host availability
self.host_connection = {}
for host, info in self.hostinfo.items():
self.host_connection[host] = True
info['host'] = host
dico = {}
for crit, val in self.d_crit.items():
numkey, default, reverse = val
dico[numkey] = info[crit] = info.get(crit, default)
if numkey > '100_' and numkey < '900_' \
and ( \
self.limit.get(crit) is None or (reverse and self.limit[crit] < dico[numkey]) \
or (not reverse and self.limit[crit] > dico[numkey]) \
):
self.limit[crit] = dico[numkey]
self.infos.append(dico)
# to store job parameters
self.history = {}
def get(self, host, key, default=None):
"""Return a current value.
"""
res = default
if self.d_crit[key][0] > '100_':
res = self.hostinfo[host][key]
else:
nkey = self.d_crit[key][0]
for info in self.infos:
if info['999_host'] == host:
res = info[nkey]
break
return res
def set(self, host, key, value):
"""Set a value.
"""
done = False
if self.d_crit[key][0] > '100_':
raise ResourceManagerError, "can not be changed : '%s'" % key
else:
nkey = self.d_crit[key][0]
for info in self.infos:
if info['999_host'] == host:
info[nkey] = value
done = True
if not done:
raise ResourceManagerError, "can't set '%s'" % key
def add(self, host, key, value):
"""Add 'value' to the current value.
"""
current = self.get(host, key)
self.set(host, key, current + value)
def sub(self, host, key, value):
"""Substract 'value' to the current value.
"""
current = self.get(host, key)
self.set(host, key, current - value)
def store_job(self, host='unknown', **kwjob):
"""Store 'kwjob' in history.
"""
if host is None:
return
dico = kwjob.copy()
dico['host'] = host
dico['allocated'] = now(datefmt="%a")
self.history[kwjob['nomjob']] = dico
def get_job(self, jobname):
"""Get 'jobname' from history.
"""
dico = self.history.get(jobname)
if dico is None:
return {}
dico['released'] = now(datefmt="%a")
return dico.copy()
def get_history(self):
"""Return a copy of the jobs's 'history'.
"""
dico = self.history.copy()
return dico
def action(self, what, *args, **kwargs):
"""Run safely a method which access to infos attribute.
"""
result = None
self.lock.acquire()
tberr = None
try:
result = getattr(self, what)(*args, **kwargs)
except Exception:
tberr = traceback.format_exc()
self.lock.release()
if tberr:
raise ResourceManagerError, tberr
return result
def get_first(self, values=None):
"""Return the most available host.
"""
if values is None:
values = self.infos[:]
if len(values) == 0:
return {}
for crit, rev in self.l_crit:
values.sort(reverse=rev)
if _DBG_TRI:
print3(crit)
pprint(values)
val0 = values[0][crit]
new = [values[0], ]
for info in values[1:]:
if info[crit] != val0:
break
new.append(info)
values = new
if len(values) == 1:
break
if _DBG_TRI:
print3('--- FIN ---')
pprint(values)
return values[0]
def is_connected(self, host):
"""Tell if 'host' is connected.
"""
return self.host_connection[host]
def get_all_connected_hosts(self):
"""Return all connected hosts.
"""
return [h for h in self.all_hosts if self.is_connected(h)]
def suitable_host(self, **kwjob):
"""Limit infos to capable hosts.
"""
values = []
for info in self.infos:
if not self.is_connected(info[self.d_crit['host'][0]]):
continue
isok = True
for par, val in kwjob.items():
if not self.isok(par, val, info):
isok = False
break
if isok:
values.append(info)
return values
def available_host(self, **kwjob):
"""Return the most available host accepting job parameters.
"""
if _DBG_CRIT:
print3('job parameters : ', end=' ')
pprint(kwjob)
values = self.suitable_host(**kwjob)
if _DBG_CRIT:
print '%d suitable hosts : %s' \
% (len(values), [info[self.d_crit['host'][0]] for info in values])
avail = self.get_first(values)
return avail
def isok(self, key, value, info):
"""Tell if 'value' is under the limit vs 'info[par]'.
"""
if not key in self.job_keys:
return False
val_ref = info[self.d_crit[key][0]]
if not self.d_crit.has_key(key + 'run'):
return True
val_run = info[self.d_crit[key + 'run'][0]]
ok = (value + val_run) <= val_ref
if _DBG_CRIT:
rep = '-'
if ok:
rep = 'ok'
print3('%-2s host=%-24s para=%-4s allocated=%-4s requested=%-4s ref=%-4s' % \
(rep, info[self.d_crit['host'][0]], key, val_run, value, val_ref))
return ok
def CheckHosts(self, run, silent=False, numthread="auto"):
"""Check connection to known hosts, update host_connection attribute.
"""
try:
numthread = int(numthread)
except (TypeError, ValueError):
numthread = run.GetCpuInfo('numthread')
if numthread > 1:
numthread = numthread * 8
task = CheckHostsTask(run=run, silent=silent, success_connection=self.host_connection)
users = [self.get(h, 'user') for h in self.all_hosts]
couples = zip(users, self.all_hosts)
check = Dispatcher(couples, task, min(numthread, len(couples)))
run.DBG(check.report())
nbok = len([host for host, success in self.host_connection.items() if success])
return nbok, len(self.all_hosts)
def Request(self, run=None, **kwjob):
"""Ask for an available host and block resources.
"""
info = self.action('available_host', **kwjob)
host = info.get(self.d_crit['host'][0], None)
if _DBG_ALLOC:
print3('job allocated on %s : %s' % (host, pformat(kwjob)))
if host is not None:
status = ALLOCATED
for key in self.job_keys:
if isnum(kwjob.get(key)):
self.action('add', host, key + 'run', kwjob[key])
else:
status = NORESOURCE
for key, lim in self.limit.items():
if kwjob.get(key) and (\
(self.d_crit[key][2] and kwjob[key] > lim) or \
(not self.d_crit[key][2] and kwjob[key] < lim) ):
status = OVERLIMIT
if run:
run.DBG("OVERLIMIT %s : requested = %s limit = %s (reverse = %s)" \
% (key, kwjob[key], lim, self.d_crit[key][2]))
break
self.action('store_job', host, **kwjob)
if _DBG_ALLOC:
print3(self.Load())
return host, status
def Free(self, jobname):
"""Free job resources on 'host'.
"""
kwjob = self.action('get_job', jobname)
if not kwjob:
return
host = kwjob['host']
ddbg = {}
for key in self.job_keys:
if isnum(kwjob.get(key)):
self.action('sub', host, key + 'run', kwjob[key])
ddbg[key] = kwjob[key]
if _DBG_ALLOC:
print3('job released : %s' % (pformat(ddbg)))
def repr_history(self):
"""Return jobs's history.
"""
dico = self.action('get_history')
ljob = [(v['allocated'], k) for k, v in dico.items()]
ljob.sort()
head = '%s %s %s %s %s %s' % (_(u"job").center(14), _(u"host").center(16),
_(u"started").center(12), _(u"cpu").rjust(6),
_(u"memory").rjust(6), _(u"ended").rjust(12))
fmt = '%(job_)-14s %(host_)-16s %(allocated)12s %(cpu)6d %(mem)6d %(released)12s'
dini = { 'job_' : '', 'host_' : '', 'allocated' : '', 'cpu' : 0,
'mem' : 0, 'released' : '' }
txt = [head, ]
for dummy, job in ljob:
dval = dini.copy()
dval.update(dico[job])
dval.update({ 'job_' : job[:14], 'host_' : dval['host'][:16] })
txt.append(fmt % dval)
return os.linesep.join(txt)
def Load(self):
"""Return current load.
"""
infos = self.infos[:]
lkey = ['cpu', 'mem']
head = ' host cpu mem'
fmt = '%(host_)-16s %(cpu)6d %(mem)6d'
txt = [head, ]
for info in infos:
dval = { 'host_' : info[self.d_crit['host'][0]][:16] }
for k in lkey:
dval[k] = info[self.d_crit[k + 'run'][0]]
txt.append(fmt % dval)
return os.linesep.join(txt)
def GetConfig(self, host):
"""Return the configuration of 'host'.
"""
return self.hostinfo.get(host, {}).copy()
def get_sum(self, key):
"""Return the sum of a resource.
"""
return sum([self.get(host, key, 0) for host in self.get_all_connected_hosts()])
def __repr__(self):
return self.hostinfo_repr()
def hostinfo_repr(self, title=""):
"""Return a hostfile representing the content of the 'hostinfo' attribute.
"""
if not title:
title = "from ResourceManager object"
content = ["# GENERATED %s - %s" % (title, now())]
for mach, res in self.hostinfo.items():
cpu = res["cpu"]
mem = res["mem"]
if cpu == mem == 0:
content.append("# %s is not responding" % mach)
else:
content.append("[%s]" % mach)
if cpu > 0:
content.append("cpu=%d" % cpu)
if mem > 0:
content.append("mem=%d" % mem)
content.append("")
return os.linesep.join(content)
class PureLocalResource(ResourceManager):
"""Derived class to run only on local host.
"""
def __init__(self, run):
"""Initialization using AsterRun object."""
cpu = run.GetCpuInfo('numcpu')
mem = run.GetMemInfo('memtotal') or 9999999
dico = { local_host : { 'host' : local_host, 'cpu' : cpu, 'mem' : mem }}
ResourceManager.__init__(self, hostinfo=dico)
class CheckHostsTask(Task):
"""Task to check a host.
"""
# declare attrs
run = None
silent = False
success_connection = {}
def execute(self, item, **kwargs):
"""Function called for each item of the stack
(up to 'nbmaxitem' at each called).
Warning : 'execute' should not modify attributes.
"""
user, host = item
success = False
if self.run.Ping(host):
iret, output = self.run.Shell('echo hello', mach=host, user=user)
if output.find('hello') >= 0:
self.run.DBG(u"CheckHosts success on %s" % host)
success = True
return host, success
def result(self, host, success, **kwargs):
"""Function called after each task to treat results of 'execute'.
Arguments are 'execute' results + keywords args.
'result' is called thread-safely, so can store results in attributes.
"""
if not self.silent:
print3(_(u"checking connection to %s... ") % host, end="")
if success:
print3(_(u"connected"))
else:
print3(_(u"failed"))
self.success_connection[host] = success
def get_hostrc(run, prof):
"""Return hostrc object from profile or config.
"""
mode = prof['mode'][0]
hostrc = None
if prof.Get('D', 'hostfile'):
fhost = prof.Get('D', 'hostfile')[0]['path']
if run.IsRemote(fhost) or True:
tmphost = get_tmpname(run, run['tmp_user'], basename='hostfile')
run.ToDelete(tmphost)
iret = run.Copy(tmphost, fhost)
fhost = tmphost
else:
fhost = run.PathOnly(fhost)
elif run.get('%s_distrib_hostfile' % mode):
fhost = run['%s_distrib_hostfile' % mode]
else:
fhost = None
if fhost:
hostinfo = parse_config(fhost)
run.DBG('hostinfo : %s' % hostinfo, all=True)
hostrc = ResourceManager(hostinfo)
else:
hostrc = PureLocalResource(run)
run.DBG(hostrc)
return hostrc
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