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#/*##########################################################################
# Copyright (C) 2001-2013 European Synchrotron Radiation Facility
#
# PyHST2
# European Synchrotron Radiation Facility, Grenoble,France
#
# PyHST2 is developed at
# the ESRF by the Scientific Software staff.
# Principal author for PyHST2: Alessandro Mirone.
#
# 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.
#
# PyHST2 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
# PyHST2; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA 02111-1307, USA.
#
# PyHST2 follows the dual licensing model of Trolltech's Qt and Riverbank's PyQt
# and cannot be used as a free plugin for a non-free program.
#
# Please contact the ESRF industrial unit (industry@esrf.fr) if this license
# is a problem for you.
#############################################################################*/
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from . import getSysOutput
from . import getCpuSetRange
import os
import string
from . import string_six
import mpi4py.MPI as MPI
import sys
import numpy
import multiprocessing
def setCpuSet(maxnargs=3):
myrank = MPI.COMM_WORLD.Get_rank()
nprocs = MPI.COMM_WORLD.Get_size()
mypname = MPI.Get_processor_name()
comm = MPI.COMM_WORLD
# cpuset_string = getSysOutput.getSysOutput("taskset -cp $$ ")
import subprocess as sub
comando = 'taskset -cp %d'%(os.getpid())
if (sys.version_info >= (3, 7)):
p = sub.Popen(args=comando.split( " ") ,stdout=sub.PIPE,stderr=sub.PIPE, text=True)
elif (sys.version_info > (3, 0)):
p = sub.Popen(args= comando.split( " ") ,stdout=sub.PIPE,stderr=sub.PIPE, universal_newlines=True)
else:
p = sub.Popen(args=comando.split( " ") ,stdout=sub.PIPE,stderr=sub.PIPE)
cpuset_string, errors = p.communicate()
# tmp_ncores4cpu, myavailable_cores_on_host = getCpuSetRange.getCoresOrdered()
# previously the followin line applied
myavailable_cores_on_host = getCpuSetRange.getCpuSetRange(str(cpuset_string).strip())
print(" AVAILABLE ",myavailable_cores_on_host, cpuset_string )
#
##########################################################################################
Ntotal_cores_on_host = multiprocessing.cpu_count()
comando = 'grep#physical id#/proc/cpuinfo'
if (sys.version_info >= (3, 7)):
p1 = sub.Popen(args=comando.split( "#") ,stdout=sub.PIPE,stderr=sub.PIPE, text=True )
elif (sys.version_info > (3, 0)):
p1 = sub.Popen(args= comando.split( "#") ,stdout=sub.PIPE,stderr=sub.PIPE, universal_newlines=True)
else:
p1 = sub.Popen(args=comando.split( "#") ,stdout=sub.PIPE,stderr=sub.PIPE)
comando = 'sort -u'
if (sys.version_info >= (3, 7)):
p2 = sub.Popen(args=comando.split( " ") ,stdin=p1.stdout,stdout=sub.PIPE,stderr=sub.PIPE, text=True)
elif (sys.version_info > (3, 0)):
p2 = sub.Popen(args=comando.split( " ") ,stdin=p1.stdout,stdout=sub.PIPE,stderr=sub.PIPE, universal_newlines=True)
else:
p2 = sub.Popen(args=comando.split( " ") ,stdin=p1.stdout,stdout=sub.PIPE,stderr=sub.PIPE)
comando = 'wc -l'
if (sys.version_info >= (3, 7)):
p3 = sub.Popen(args=comando.split( " ") ,stdin=p2.stdout,stdout=sub.PIPE,stderr=sub.PIPE, text=True)
elif (sys.version_info > (3, 0)):
p3 = sub.Popen(args=comando.split( " ") ,stdin=p2.stdout,stdout=sub.PIPE,stderr=sub.PIPE, universal_newlines=True)
else:
p3 = sub.Popen(args=comando.split( " ") ,stdin=p2.stdout,stdout=sub.PIPE,stderr=sub.PIPE)
nofprocessors, errors = p3.communicate()
nofprocessors=string.atoi(nofprocessors)
comando = "grep MemTotal /proc/meminfo"
if (sys.version_info >= (3, 7)):
p1 = sub.Popen(args=comando.split( " ") ,stdout=sub.PIPE,stderr=sub.PIPE, text=True)
elif (sys.version_info > (3, 0)):
p1 = sub.Popen(args=comando.split( " ") ,stdout=sub.PIPE,stderr=sub.PIPE, universal_newlines=True)
else:
p1 = sub.Popen(args=comando.split( " ") ,stdout=sub.PIPE,stderr=sub.PIPE)
msg, errors = p1.communicate()
MemTotal=msg.split()[1]
MemTotal =string.atof(MemTotal)*1000
MemPerProc = MemTotal/Ntotal_cores_on_host
# MemPerProc = MemTotal/len( myavailable_cores_on_host )
if "kB" not in msg:
raise Exception(" MemTotal in is not given in kB :" , msg)
## in un futuro in cui potessero esserci piu di due cpu i cores potrebbero essere
## sur intervalli non contigui. In questo caso non bastera avere il numero totale di core
## e il primo numero. Ci vorranno piu range , ognuno individuato dall'inizio
## e dal numero di cores
# taskset -cp 30199
# pid 30199's current affinity list: 0,2,3
# by Now : Example :
# cpuset_string "pid 2928's current affinity list: 0-3\n"
# ===> firstCORE_launch, nCOREs_launch = 0,4
cpuranges_perproc={}
hostname_perproc={}
for iproc in range(nprocs):
if myrank == iproc:
datacpus= {myrank:myavailable_cores_on_host}
datanames={myrank: mypname }
else:
datacpus = None
datanames = None
datacpus = comm.bcast(datacpus, root=iproc)
datanames = comm.bcast(datanames, root=iproc)
cpuranges_perproc.update(datacpus )
hostname_perproc .update(datanames)
comrade_procs=[]
for key in hostname_perproc.keys():
if hostname_perproc[key]== mypname:
comrade_procs.append(key)
assert(myrank in comrade_procs)
for iproc in comrade_procs:
assert cpuranges_perproc[iproc] == cpuranges_perproc[myrank], ( iproc, myrank ,cpuranges_perproc[iproc], cpuranges_perproc[myrank] )
comrade_procs.sort()
ncomrades=len(comrade_procs)
mycomraderank= comrade_procs.index(myrank)
assert( len( myavailable_cores_on_host )%ncomrades == 0 )
coresperproc = len(myavailable_cores_on_host)//ncomrades
cpusperproc=1
ncores4cpu, cores_ordered = getCpuSetRange.getCoresOrdered()
cpusperproc = coresperproc//ncores4cpu
print( " cpusperproc " , cpusperproc)
my_cores = numpy.array(cores_ordered)[range(mycomraderank*coresperproc, (mycomraderank+1) * coresperproc )]
s=""
for n in my_cores:
s=s+str(n)+","
s=s[:-1]
comando = 'taskset -pc %s %d'%( s, os.getpid())
if (sys.version_info >= (3, 7)):
p = sub.Popen(args=comando.split( " ") ,stdout=sub.PIPE,stderr=sub.PIPE, text=True)
elif (sys.version_info > (3, 0)):
p = sub.Popen(args=comando.split( " ") ,stdout=sub.PIPE,stderr=sub.PIPE, universal_newlines=True)
else:
p = sub.Popen(args=comando.split( " ") ,stdout=sub.PIPE,stderr=sub.PIPE)
cpuset_string, errors = p.communicate()
comm.Barrier()
if len(sys.argv)<maxnargs:
mygpus=[]
else:
gpus=[]
largv3=sys.argv[maxnargs-1].split(",")
status=0
for tok in largv3:
if status==1:
try:
gpuid = string.atoi(tok)
gpus.append(gpuid)
except:
status=0
if tok==mypname:
status=1
posincomrade = comrade_procs.index(myrank)
pos1 = (len(gpus) *posincomrade)//len(comrade_procs)
pos2 = (len(gpus) *(posincomrade+1))//len(comrade_procs)
mygpus = gpus[pos1:pos2]
return mygpus, MemPerProc, coresperproc, cpusperproc
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