mirror of
https://github.com/triqs/dft_tools
synced 2024-12-25 13:53:40 +01:00
120 lines
3.6 KiB
Python
120 lines
3.6 KiB
Python
|
|
################################################################################
|
|
#
|
|
# TRIQS: a Toolbox for Research in Interacting Quantum Systems
|
|
#
|
|
# Copyright (C) 2011 by M. Ferrero, O. Parcollet
|
|
#
|
|
# TRIQS 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 3 of the License, or (at your option) any later
|
|
# version.
|
|
#
|
|
# TRIQS 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
|
|
# TRIQS. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
################################################################################
|
|
|
|
import os,sys,datetime
|
|
myprint_err = lambda x : sys.stderr.write("%s\n"%x)
|
|
myprint_out = lambda x : sys.stdout.write("%s\n"%x)
|
|
|
|
from mpi4py import MPI
|
|
|
|
world = MPI.COMM_WORLD
|
|
rank = world.Get_rank()
|
|
size = world.Get_size()
|
|
|
|
if rank==0 :
|
|
myprint_err ("Starting on %s Nodes at : %s"%(size,str(datetime.datetime.now())))
|
|
|
|
master =0
|
|
|
|
All_Nodes_report = False #True
|
|
|
|
def bcast(x) :
|
|
return world.bcast(x, root=0)
|
|
#return broadcast(world,x,0)
|
|
|
|
def send(val,node) :
|
|
world.send(val, dest = node)
|
|
#world.send(node,0,val)
|
|
#print "node ", rank, "has sent ",val, " to node ", node
|
|
|
|
def recv(node) :
|
|
r = world.recv(source=0)
|
|
#r = world.recv(node,0)
|
|
#print "node", rank, "receives ", r , "from Node ",node
|
|
return r
|
|
|
|
#def irecv(node) :
|
|
# return world.irecv(node,0)
|
|
|
|
def barrier() :
|
|
world.barrier()
|
|
|
|
# temporary patch
|
|
# need to change the code for all all_reduce to use this layer....
|
|
def all_reduce(WORLD, x, F) :
|
|
return world.allreduce(x)
|
|
|
|
|
|
Verbosity_Level_Report_Max = 1
|
|
def report(*x,**opt):
|
|
""" print on the master, do nothing on the nodes """
|
|
try :
|
|
if opt['Verbosity_Level'] > Verbosity_Level_Report_Max : return
|
|
except :
|
|
pass
|
|
if All_Nodes_report and rank!=0 :
|
|
for y in x:
|
|
open('report_node%s'%rank,'a').write(str(y) + '\n') # print y
|
|
|
|
if rank==0 :
|
|
myprint,myflush = (myprint_err,sys.stderr.flush) if 'stderr' in opt and opt['stderr'] else (myprint_out,sys.stdout.flush)
|
|
for y in x:
|
|
myprint( y) # open('report','a').write(str(y) + '\n') # print y
|
|
myflush() # be sure to flush the buffer!
|
|
|
|
def slice_inf(imin,imax) :
|
|
j=(imax - imin + 1)/size
|
|
i= imax - imin + 1 - size*j
|
|
return imin + rank*(j+1) if rank<=i-1 else imin + rank*j + i
|
|
|
|
def slice_sup(imin,imax) :
|
|
j=(imax - imin + 1)/size
|
|
i= imax - imin + 1 - size*j;
|
|
return imin + (rank+1)*(j+1) -1 if rank<=i-1 else imin + (rank+1)*j + i - 1
|
|
|
|
def slice_array(A) :
|
|
"""Given an array A, it returns a VIEW of a slice over the first dim on the node"""
|
|
imax = A.shape[0]-1
|
|
return A[slice_inf(0,imax):slice_sup(0,imax)+1] # +1 due to the slice convention
|
|
|
|
def is_master_node(): return rank == master
|
|
|
|
HostNames = {}
|
|
def master_gets_host_names():
|
|
""" find the host name of all the nodes """
|
|
from socket import gethostname
|
|
global HostNames
|
|
HostNames[rank] = gethostname()
|
|
if is_master_node() :
|
|
for proc in range (1,size) :
|
|
HostNames[proc],status = recv(proc)
|
|
else:
|
|
send(gethostname(),master)
|
|
barrier()
|
|
assert len(HostNames)==size," internal pb MPI module"
|
|
|
|
if is_master_node() :
|
|
print "Hostnames : "
|
|
for u,host in HostNames.items() :
|
|
print "Node %d on machine %s"%(u,host)
|
|
|