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finesse
pykat
Commits
f043f013
Commit
f043f013
authored
Jul 24, 2015
by
Daniel Brown
Browse files
adding in parakat object to run multiple kat objects at once using ipython cluster feature.
parent
04fbb874
Changes
2
Hide whitespace changes
Inline
Side-by-side
pykat/finesse.py
View file @
f043f013
...
...
@@ -1107,7 +1107,7 @@ class kat(object):
except
pkex
.
BasePyKatException
as
ex
:
print
(
ex
)
def
run
(
self
,
printout
=
0
,
printerr
=
0
,
plot
=
None
,
save_output
=
False
,
save_kat
=
False
,
kat_name
=
None
,
cmd_args
=
None
,
getTraceData
=
False
):
def
run
(
self
,
printout
=
0
,
printerr
=
0
,
plot
=
None
,
save_output
=
False
,
save_kat
=
False
,
kat_name
=
None
,
cmd_args
=
None
,
getTraceData
=
False
,
rethrowExceptions
=
False
):
"""
Runs the current simulation setup that has been built thus far.
It returns a katRun or katRun2D object which is populated with the various
...
...
@@ -1124,6 +1124,8 @@ class kat(object):
that Finesse performs, the keys are the node names and the values
are the x and y beam parameters. If no tracing is done a None
is returned.
rethrowExceptions - if true exceptions will be thrown again rather than being excepted and calling sys.exit()
"""
start
=
datetime
.
datetime
.
now
()
...
...
@@ -1423,9 +1425,16 @@ class kat(object):
except
KeyboardInterrupt
as
ex
:
print
(
"Keyboard interrupt caught, stopped simulation."
)
except
pkex
.
FinesseRunError
as
ex
:
pkex
.
PrintError
(
"Error from Finesse:"
,
ex
)
if
rethrowExceptions
:
raise
ex
else
:
pkex
.
PrintError
(
"Error from Finesse:"
,
ex
)
except
pkex
.
BasePyKatException
as
ex
:
pkex
.
PrintError
(
"Error from pykat:"
,
ex
)
if
rethrowExceptions
:
raise
ex
else
:
pkex
.
PrintError
(
"Error from pykat:"
,
ex
)
finally
:
if
self
.
verbose
:
print
(
""
)
if
self
.
verbose
:
print
(
"Finished in "
+
str
(
datetime
.
datetime
.
now
()
-
start
))
...
...
pykat/parallel.py
0 → 100644
View file @
f043f013
# -*- coding: utf-8 -*-
"""
Created on Sun Jan 27 09:56:53 2013
PyKat - Python interface and wrapper for FINESSE
Copyright (C) 2013 Daniel David Brown
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 the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Contact at ddb@star.sr.bham.ac.uk
@author: Daniel Brown
"""
from
IPython.parallel
import
Client
import
sys
import
os
def
_run
(
commands
,
pwd
):
import
os
os
.
chdir
(
pwd
)
import
pykat
kat
=
pykat
.
finesse
.
kat
()
kat
.
parseCommands
(
commands
)
out
=
kat
.
run
(
rethrowExceptions
=
True
)
return
out
class
parakat
(
object
):
"""
Uses the ipython clustering for running kat objects in parallel.
To use this you must have started an ipython cluster on your computer.
From a new terminal use the command:
ipcluster start -n 4
This will start a cluster with 4 workers.
To run a kat object use:
pk = parakat()
pk.run(kat1)
pk.run(kat2)
pk.run(kat3)
outs = pk.getResults()
The list 'outs' will contain the katRun object you'd normal get if you
had just called, kat1.run(), etc. The results list is matched to order
in which you run the kats.
If you need to stop long running kat processes the chances are you will
also need to kill the ipython cluster process, as sometimes they carry
on running.
"""
def
__init__
(
self
):
self
.
_rc
=
Client
()
self
.
_lview
=
self
.
_rc
.
load_balanced_view
()
self
.
_lview
.
block
=
False
self
.
_results
=
[]
def
run
(
self
,
kat
):
print
(
kat
)
self
.
_results
.
append
(
self
.
_lview
.
apply_async
(
_run
,
""
.
join
(
kat
.
generateKatScript
()),
os
.
getcwd
()))
print
(
self
.
_results
)
def
getResults
(
self
):
out
=
[]
self
.
_lview
.
wait
(
self
.
_results
)
for
done
in
self
.
_results
:
out
.
append
(
done
.
get
())
return
out
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