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#!/usr/bin/env python |
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# $Id$ |
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# Source: $URL$ |
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# J. A. Templon, NIKHEF/PDP 2014 |
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|
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# Class to hold parameters: |
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|
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class mcfloat_cfg: |
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def __init__(self): # default values; adjust for your site |
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self.maxdrain = 32 |
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self.maxfree = 49 |
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self.maxfreepernode = 3 |
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self.nodespergrab = 3 |
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self.capacityfrac = 0.47 |
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self.mcqueue = 'atlasmc' |
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self.underpop_nodes_file = "/var/db/nodes_with_too_few_jobs" |
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self.torque = "stro.nikhef.nl" |
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def __repr__(self): |
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return "Capacity Fraction %4.2f\nMax Drain %d\nMax Free %d\nMax Free per Node %d" % (self.capacityfrac, |
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self.maxdrain, |
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self.maxfree, |
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self.maxfreepernode ) |
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|
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MCFLOAT_CONFIG_FILE = "/var/db/mcfloat_config" |
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|
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# the above config allows mcore to run up to full ATLAS allocation (07.04.2015) |
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# full allocation right now is 47% of "non-retired" capacity = knal + mars + car |
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# just configure 47% of each class. |
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|
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# override when lsgrid is running (legacy comments, might be useful) |
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|
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# MAXFREEPERNODE = 29 # allow lsgrid 30-core jobs |
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# MAXFREE = 149 # max num of free slots to tolerate |
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|
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# override when bbmri is running |
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|
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# MAXFREE = 149 # max num of free slots to tolerate |
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# MAXFREEPERNODE = 9 # allow bbmri 10-core jobs |
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|
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import os |
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import pickle |
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import sys |
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import subprocess |
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|
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def getmcjobinfo(nodes, cfg): |
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|
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# input is the list of nodes for which to get info |
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# function returns tuple (jobs_waiting, node_info) |
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# jobs_waiting boolean value : are there MC jobs waiting to be run (state Q)? (independent of nodes!) |
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# node_info: list of tuples (wn_name, wn, num_running_mc, num_free_slots) |
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# where wn is the node object for the machine with name wn_name, num_running_mc is the number of |
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# mc jobs running on that node, and num_free_slots is the number of unused job slots on that node |
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|
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usedkeys = ['egroup', 'jobid', 'queue', 'job_state', 'euser', 'exec_host' ] |
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|
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import torqueJobs |
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import torqueAttMappers as tam |
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|
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import tempfile |
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qsfname = tempfile.mktemp(".txt","qsmf",os.environ['HOME']+"/tmp") |
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|
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import time |
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os.system('/usr/bin/qstat -f @' + cfg.torque + ' > ' + qsfname) |
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now = time.mktime(time.localtime()) |
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|
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jlist = torqueJobs.qs_parsefile(qsfname) |
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|
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os.system('mv ' + qsfname + ' ' + os.environ['HOME'] + '/tmp/qstat.last.txt') |
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|
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def mapatts(indict,inkeys): |
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sdict = tam.sub_dict(indict,inkeys) |
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odict = dict() |
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for k in sdict.keys(): |
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if k in tam.tfl and sdict[k]: |
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secs = tam.hms(sdict[k]) |
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sdict[k] = secs/3600. |
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if k in tam.mfl and sdict[k]: |
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mebi = tam.memconvert(sdict[k]) |
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sdict[k] = mebi |
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if k in tam.tfl2 and sdict[k]: |
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secs = tam.tconv(sdict[k]) |
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sdict[k] = secs |
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elif k == 'job_state': |
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statelett = sdict[k] |
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if statelett in ['Q','W']: |
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sdict[k] = 'queued' |
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elif statelett in ['R','E']: |
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sdict[k] = 'running' |
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elif k == 'exec_host' and sdict[k]: |
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termpos = sdict[k].find('/') |
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wnstring = sdict[k][:termpos] |
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sdict[k] = wnstring |
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if sdict[k]: |
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odict[k] = sdict[k] |
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return odict |
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|
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mcjoblist = list() |
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waitingJobs = False |
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for j in jlist: |
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if j['queue'] == cfg.mcqueue: |
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newj = mapatts(j,usedkeys) |
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mcjoblist.append(newj) |
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if newj['job_state'] == 'queued': |
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waitingJobs = True |
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|
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# find out how many running mc jobs each node has |
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|
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running_mc = dict() |
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for n in nodes: |
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running_mc[n.name] = 0 |
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for j in mcjoblist: |
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if j['job_state'] =='running': |
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wn = j['exec_host'] |
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if wn in running_mc.keys(): |
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running_mc[wn] += 1 |
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rawlist = list() |
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for n in nodes: |
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rawlist.append( (n.name, n, running_mc[n.name], n.freeCpu) ) |
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from operator import itemgetter |
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def srtrunningfree(item): |
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# sort optimal for dropping nodes; for nodes with zero running mc jobs, want to |
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# drop least-drained nodes (fewer free slots first in list); for nodes with |
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# running mc jobs, want to shed as few nodes as possible so pick the more-drained |
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# nodes first. this probably also works for shedding nodes when queue dries up. |
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mcrun = item[2] |
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emptyslots = item[3] |
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if mcrun == 0: |
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rank = emptyslots |
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else: |
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# the original "optimal" order: rank = 32*mcrun - emptyslots # 32 just a number bigger than expected emptyslots value |
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rank = 7168 - 224*float(emptyslots)/mcrun + mcrun # constants 7168 and 224 only serve to enable a multi-level sort. |
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return rank |
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slist = sorted(rawlist, key=srtrunningfree) |
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|
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return waitingJobs, slist |
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|
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def remove_from_mc_pool(node): |
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# print "adding el6 tag back to node", node.name |
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if "el6" not in node.properties : |
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proc = subprocess.Popen(['/usr/bin/qmgr'], |
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stdin=subprocess.PIPE, |
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stdout=subprocess.PIPE,) |
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proc.stdin.write( 'set node ' + node.name + \ |
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' properties += el6\n' ) |
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proc.stdin.write( 'print node ' + node.name + \ |
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' properties\n' ) |
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out = proc.communicate()[0] |
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# print out |
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if "mc" in node.properties : |
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proc = subprocess.Popen(['/usr/bin/qmgr'], |
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stdin=subprocess.PIPE, |
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stdout=subprocess.PIPE,) |
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proc.stdin.write( 'set node ' + node.name + \ |
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' properties -= mc\n' ) |
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proc.stdin.write( 'print node ' + node.name + \ |
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' properties\n' ) |
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out = proc.communicate()[0] |
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# print out |
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|
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def add_to_mc_pool(node): |
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# print "node props b4:", grabbed_node.properties |
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if "el6" in node.properties : |
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proc = subprocess.Popen(['/usr/bin/qmgr'], |
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stdin=subprocess.PIPE, |
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stdout=subprocess.PIPE,) |
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proc.stdin.write( 'set node ' + node.name + \ |
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' properties -= el6\n' ) |
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proc.stdin.write( 'print node ' + node.name + \ |
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' properties\n' ) |
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out = proc.communicate()[0] |
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|
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if "mc" not in node.properties : |
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proc = subprocess.Popen(['/usr/bin/qmgr'], |
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stdin=subprocess.PIPE, |
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stdout=subprocess.PIPE,) |
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proc.stdin.write( 'set node ' + node.name + \ |
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' properties += mc\n' ) |
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proc.stdin.write( 'print node ' + node.name + \ |
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' properties\n' ) |
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out = proc.communicate()[0] |
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|
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import optparse |
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|
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usage = "usage: %prog [-d debug_level] [-n]" |
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|
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p = optparse.OptionParser(description="Monitor state of multicore pool and adjust size as needed", |
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usage=usage) |
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|
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p.add_option("-A",action="store_true",dest="addall",default=False, |
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help="add all eligible nodes to multicore pool") |
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|
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p.add_option("-D",action="store_true",dest="delall",default=False, |
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help="delete all nodes from multicore pool") |
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|
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p.add_option("-m",action="store",dest="new_max_free",default=None, |
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help="maximum number of unused slots to tolerate in the multicore pool") |
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|
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p.add_option("-l",action="store",dest="logfile",default=None, |
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help="log actions and information to LOGFILE (default stdout)") |
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|
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p.add_option("-L",action="store",dest="loglevel",default="INFO", |
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help="print messages of LOGLEVEL (DEBUG, INFO, WARNING, ..., default INFO") |
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|
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p.add_option("-n",action="store_true",dest="noopt",default=False, |
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help="don't do anything, just print what would have been done") |
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|
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p.add_option("-i",action="store_true",dest="info",default=False, |
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help="print info on all nodes in multicore pool") |
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|
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p.add_option("-f",action="store",dest="newfrac",default=None, |
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help="fraction (out of 1.0) of in-service nodes to commit to multicore pool") |
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|
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p.add_option("-r",action="store_true",dest="reset_config",default=False, |
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help="reset mcfloat config to the default") |
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|
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p.add_option("-R",action="store_true",dest="remove_strays_from_pool",default=False, |
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help="remove mc pool nodes that are not one of the configured candidate nodes") |
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|
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p.add_option("-q",action="store_true",dest="querycfg",default=False, |
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help="print current config and exit") |
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|
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import logging |
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|
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opts, args = p.parse_args() |
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|
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# assuming loglevel is bound to the string value obtained from the |
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# command line argument. Convert to upper case to allow the user to |
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# specify --log=DEBUG or --log=debug |
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|
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numeric_level = getattr(logging, opts.loglevel.upper(), None) |
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if not isinstance(numeric_level, int): |
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raise ValueError('Invalid log level: %s' % loglevel) |
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if opts.logfile: |
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logging.basicConfig(format='%(asctime)s %(levelname)s %(message)s', |
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level=numeric_level,filename=opts.logfile) |
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else: |
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logging.basicConfig(format='%(asctime)s %(levelname)s %(message)s', |
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level=numeric_level) |
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|
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if os.path.isfile(MCFLOAT_CONFIG_FILE): |
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pkl_file = open(MCFLOAT_CONFIG_FILE,'rb') |
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cfg = pickle.load(pkl_file) |
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pkl_file.close() |
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else: |
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cfg = mcfloat_cfg() # default values |
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|
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if opts.querycfg: |
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print "Current mcfloat configuration:" |
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print cfg |
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sys.exit(0) |
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|
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config_changed = False |
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|
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# bundle all config changers here |
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|
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if opts.newfrac: |
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cfg.capacityfrac = float(opts.newfrac) |
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if cfg.capacityfrac < 0 or cfg.capacityfrac > 1: |
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raise ValueError('Invalid capacity fraction: %s' % opts.newfrac) |
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logging.info("Raising capacity fraction to %s" % opts.newfrac) |
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config_changed = True |
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|
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if opts.new_max_free: |
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cfg.maxfree = int(opts.new_max_free) |
| 265 |
if cfg.maxfree < 0: |
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raise ValueError('Invalid max free slots: %s' % opts.new_max_free) |
| 267 |
logging.info("Raising max free slots to %s" % opts.new_max_free) |
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config_changed = True |
| 269 |
|
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if opts.reset_config: |
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cfg = mcfloat_cfg() # default values |
| 272 |
logging.info("Reset mcfloat config to default values") |
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config_changed = True |
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|
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## below after all config changers |
| 276 |
|
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if config_changed: |
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logging.info("writing out changed mcfloat config to config file") |
| 279 |
if not opts.noopt: |
| 280 |
pkl_file = open(MCFLOAT_CONFIG_FILE,'wb') |
| 281 |
pickle.dump(cfg,pkl_file) |
| 282 |
pkl_file.close() |
| 283 |
sys.exit(0) |
| 284 |
|
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if opts.delall: |
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cfrac = 1 |
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else: |
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cfrac = cfg.capacityfrac |
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|
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NUM_CAR = int(cfrac * 96) |
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NUM_KNAL = int(cfrac * 18) |
| 292 |
NUM_MARS = int(cfrac * 58) |
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|
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# there is no check whether START + NUM < number of nodes |
| 295 |
# so careful when changing START from 1 |
| 296 |
|
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START_CAR = 25 |
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START_KNAL = 1 |
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START_MARS = 1 |
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|
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RANGE_CAR = range(START_CAR, START_CAR + NUM_CAR + 1) |
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RANGE_KNAL = range(START_KNAL, START_KNAL + NUM_KNAL + 1) |
| 303 |
RANGE_MARS = range(START_MARS, START_MARS + NUM_MARS + 1) |
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|
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CANDIDATE_NODES = [ 'wn-car-0%02d.farm.nikhef.nl' % (n) \ |
| 306 |
for n in RANGE_CAR ] + \ |
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[ 'wn-knal-0%02d.farm.nikhef.nl' % (n) \ |
| 308 |
for n in RANGE_KNAL ] + \ |
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[ 'wn-mars-0%02d.farm.nikhef.nl' % (n) \ |
| 310 |
for n in RANGE_MARS ] |
| 311 |
|
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from torque_utils import pbsnodes |
| 313 |
|
| 314 |
wnodes = pbsnodes() |
| 315 |
mcnodes = list() |
| 316 |
waiting = None |
| 317 |
node_tuples = None |
| 318 |
|
| 319 |
if opts.remove_strays_from_pool: |
| 320 |
for node in wnodes: |
| 321 |
if node.name not in CANDIDATE_NODES and 'mc' in node.properties : |
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remove_from_mc_pool(node) |
| 323 |
logging.info("%s deleted from mc node pool" % (node.name)) |
| 324 |
sys.exit(0) |
| 325 |
|
| 326 |
for node in wnodes: |
| 327 |
if node.name in CANDIDATE_NODES and node.state.count('offline') == 0: |
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mcnodes.append(node) |
| 329 |
|
| 330 |
if os.path.isfile(cfg.underpop_nodes_file): |
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pkl_file = open(cfg.underpop_nodes_file,'rb') |
| 332 |
nodes_too_few_jobs_last_run = pickle.load(pkl_file) |
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pkl_file.close() |
| 334 |
else: |
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nodes_too_few_jobs_last_run = list() |
| 336 |
|
| 337 |
logging.debug("nodes from pickle file, marked from last run: " + \ |
| 338 |
repr(nodes_too_few_jobs_last_run) ) |
| 339 |
|
| 340 |
draining_slots = 0 |
| 341 |
mcdedicated = list() |
| 342 |
draining_nodes = 0 |
| 343 |
|
| 344 |
for node in mcnodes: |
| 345 |
if 'el6' not in node.properties and 'mc' in node.properties : |
| 346 |
mcdedicated.append(node) |
| 347 |
draining_slots += node.freeCpu |
| 348 |
if node.freeCpu > 0 : draining_nodes += 1 |
| 349 |
|
| 350 |
if opts.info: |
| 351 |
waiting, node_tuples = getmcjobinfo(mcdedicated,cfg) |
| 352 |
for t in node_tuples: |
| 353 |
if t[2] == 0: |
| 354 |
print "%28s has %2d running mc jobs, %2d empty slots" % (t[0], t[2], t[3]) |
| 355 |
else: |
| 356 |
print "%28s has %2d running mc jobs, %2d empty slots, ratio %4.1f" % (t[0], t[2], t[3], float(t[3])/t[2]) |
| 357 |
sys.exit(0) |
| 358 |
candidate_nodes = list() |
| 359 |
for n in mcnodes: |
| 360 |
if n not in mcdedicated: |
| 361 |
candidate_nodes.append(n) |
| 362 |
|
| 363 |
if opts.delall: |
| 364 |
for grabbed_node in mcdedicated: |
| 365 |
logging.info("%s deleted from mc node pool" % (grabbed_node.name)) |
| 366 |
if not opts.noopt: remove_from_mc_pool(grabbed_node) |
| 367 |
sys.exit(0) |
| 368 |
|
| 369 |
if opts.addall: |
| 370 |
for grabbed_node in candidate_nodes: |
| 371 |
logging.info("%s added to mc node pool" % (grabbed_node.name)) |
| 372 |
# candidate_nodes.remove(grabbed_node) |
| 373 |
if not opts.noopt: add_to_mc_pool(grabbed_node) |
| 374 |
sys.exit(0) |
| 375 |
|
| 376 |
# check for dedicated nodes with too few jobs |
| 377 |
|
| 378 |
nodes_with_too_few_jobs = list() |
| 379 |
|
| 380 |
for node in mcdedicated: |
| 381 |
logging.debug(node.name + " has " + repr(node.freeCpu) + " free slots") |
| 382 |
if node.freeCpu > cfg.maxfreepernode: |
| 383 |
nodes_with_too_few_jobs.append(node) |
| 384 |
|
| 385 |
logging.debug("there are " + repr(len(nodes_with_too_few_jobs)) + \ |
| 386 |
" nodes with too few jobs") |
| 387 |
|
| 388 |
nodes_consistently_underpopulated = list() |
| 389 |
for n in nodes_with_too_few_jobs: |
| 390 |
if n.name in nodes_too_few_jobs_last_run: |
| 391 |
nodes_consistently_underpopulated.append(n) |
| 392 |
|
| 393 |
undcount = len(nodes_consistently_underpopulated) |
| 394 |
if undcount > 0: |
| 395 |
logging.debug("there are " + repr(undcount) + \ |
| 396 |
" nodes with too few jobs that were also marked last run" ) |
| 397 |
|
| 398 |
import random |
| 399 |
|
| 400 |
removed_a_node = False |
| 401 |
|
| 402 |
if undcount > 0: |
| 403 |
logging.info("nodes consistently underpopulated:") |
| 404 |
for n in nodes_consistently_underpopulated: |
| 405 |
logging.info(" " + n.name) |
| 406 |
if undcount > 1: |
| 407 |
remcount = undcount / 2 # number to remove |
| 408 |
logging.info("going to remove " + repr(remcount) + " from mc pool") |
| 409 |
else: |
| 410 |
remcount = 1 |
| 411 |
|
| 412 |
# find out how many running mc jobs each node has |
| 413 |
|
| 414 |
waiting, node_tuples = getmcjobinfo(nodes_consistently_underpopulated,cfg) |
| 415 |
|
| 416 |
for node_t in node_tuples[:remcount]: |
| 417 |
nname, nnode, running_mc, unused_slots = node_t |
| 418 |
logging.info("dumped %d empty slots, %d mc jobs on %s" % \ |
| 419 |
(unused_slots, running_mc, nname) ) |
| 420 |
if not opts.noopt : remove_from_mc_pool(nnode) |
| 421 |
nodes_with_too_few_jobs.remove(nnode) |
| 422 |
nodes_consistently_underpopulated.remove(nnode) |
| 423 |
removed_a_node = True |
| 424 |
|
| 425 |
namelist = list() |
| 426 |
if len(nodes_with_too_few_jobs) > 0: |
| 427 |
logging.debug("placing %d nodes " % (len(nodes_with_too_few_jobs)) + \ |
| 428 |
"with too few jobs on list for next run:") |
| 429 |
|
| 430 |
for n in nodes_with_too_few_jobs: |
| 431 |
logging.debug(n.name) |
| 432 |
namelist.append(n.name) |
| 433 |
if not opts.noopt: |
| 434 |
pkl_file = open(cfg.underpop_nodes_file,'wb') |
| 435 |
pickle.dump(namelist,pkl_file) |
| 436 |
pkl_file.close() |
| 437 |
if len(nodes_with_too_few_jobs) > 0 or removed_a_node : |
| 438 |
sys.exit(0) |
| 439 |
|
| 440 |
# if we survive to this point, all nodes 'dedicated' are being efficiently |
| 441 |
# used. are we draining less than the configured max? |
| 442 |
|
| 443 |
logging.debug("There are " + repr(len(mcdedicated)) + " dedicated nodes and " + \ |
| 444 |
repr(draining_slots) + " unused slots") |
| 445 |
if (cfg.maxfree - draining_slots) >= cfg.maxfreepernode: |
| 446 |
logging.debug("%d unused slots are permitted, so %d more" % (cfg.maxfree, cfg.maxfree - draining_slots)) |
| 447 |
logging.debug("headroom of more than %d+ slots means we can try to grab another node" % (cfg.maxfreepernode) ) |
| 448 |
if draining_nodes < cfg.maxdrain : |
| 449 |
# first check if there are actually any waiting jobs to run; if not makes no sense to grab a node. |
| 450 |
waiting, node_tuples = getmcjobinfo(mcdedicated,cfg) |
| 451 |
if not waiting: |
| 452 |
logging.debug("No waiting jobs found, nothing to do") |
| 453 |
sys.exit(0) |
| 454 |
logging.debug("max %d node(s) with unused slots permitted, %d seen" % \ |
| 455 |
(cfg.maxdrain, draining_nodes)) |
| 456 |
logging.debug("there are also waiting jobs: try to grab another node") |
| 457 |
# build a list of candidates to grab |
| 458 |
logging.debug("found %d candidate nodes to dedicate to mc" % len(candidate_nodes)) |
| 459 |
if len(candidate_nodes) < 1: |
| 460 |
logging.debug("no more nodes, bailing out, nothing more I can do") |
| 461 |
sys.exit(0) |
| 462 |
for nn in range(min(cfg.nodespergrab,len(candidate_nodes))): |
| 463 |
# logging.debug("found %d candidate nodes to dedicate to mc" % len(candidate_nodes)) |
| 464 |
grabbed_node=random.choice(candidate_nodes) |
| 465 |
logging.info("%s added to mc node pool" % (grabbed_node.name)) |
| 466 |
candidate_nodes.remove(grabbed_node) |
| 467 |
if not opts.noopt: add_to_mc_pool(grabbed_node) |
| 468 |
else: |
| 469 |
logging.debug("There are %d nodes with unused slots (draining)" % (draining_nodes)) |
| 470 |
logging.debug("This equals or exceeds the configured max of %d" % (cfg.maxdrain)) |
| 471 |
logging.debug("Doing nothing now") |
| 472 |
|
| 473 |
elif draining_slots > cfg.maxfree: |
| 474 |
|
| 475 |
# find out how many running mc jobs each node has |
| 476 |
|
| 477 |
waiting, node_tuples = getmcjobinfo(mcdedicated,cfg) |
| 478 |
|
| 479 |
slots_to_recover = draining_slots - cfg.maxfree |
| 480 |
logging.info("unused slot limit (%d) exceeded by %d " \ |
| 481 |
% (cfg.maxfree, slots_to_recover) + ": remove node(s) from mc pool") |
| 482 |
slots_recovered = 0 |
| 483 |
while slots_recovered < slots_to_recover: |
| 484 |
node_t = node_tuples.pop(0) |
| 485 |
nname, nnode, running_mc, unused_slots = node_t |
| 486 |
if unused_slots > 0: |
| 487 |
logging.info("dumped %d empty slots, %d mc jobs on %s" % \ |
| 488 |
(unused_slots, running_mc, nname) ) |
| 489 |
if not opts.noopt : remove_from_mc_pool(nnode) |
| 490 |
slots_recovered += unused_slots |
| 491 |
else: |
| 492 |
logging.debug("%d unused slots of allowed %d" % (draining_slots, cfg.maxfree)) |
| 493 |
logging.debug("difference is %d which is less than %d" % \ |
| 494 |
(cfg.maxfree - draining_slots, cfg.maxfreepernode) ) |
| 495 |
logging.debug("so: doing nothing now.") |
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