#5807: dsage with @parallel doesn't work at all
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Reporter: was | Owner: yi
Type: defect | Status: new
Priority: major | Milestone: sage-3.4.2
Component: dsage | Keywords:
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I tried to use dsage with the @parallel directory and sage-3.4, and it's
100% broken. The log just spews forever:
{{{
2009-04-16 18:25:05-0700 [-] [Worker: 0] Restarting...
2009-04-16 18:25:05-0700 [-] [Worker 0] Started...
2009-04-16 18:25:05-0700 [-] [Worker 1] Job vISI9r9Dzs failed!
2009-04-16 18:25:05-0700 [-] Traceback:
execfile('/scratch/wstein/sage/dsage/tmp_worker_files/vISI9r9Dzs/f.py')
re
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File
"/scratch/wstein/sage/dsage/tmp_worker_files/vISI9r9Dzs/f.py", line 8, in
<module>
f = unpickle_function(p_f)
NameError: name 'p_f' is not defined
2009-04-16 18:25:05-0700 [-] [Worker: 1] Restarting...
2009-04-16 18:25:05-0700 [-] [Worker 1] Started...
2009-04-16 18:25:05-0700 [Broker,client] [Worker 0] Starting job
5pzNNCImcd
2009-04-16 18:25:05-0700 [Broker,client] [Worker 1] Starting job
vISI9r9Dzs
}}}
Using @parallel and multiprocessing for what I want to do (just some
simple no-pexpect C library stuff involving modular symbols) doesn't work
either, since I get weird pari_trap error exceptions.
It is so sad, that after all these years and all this work to write code
to run things in parallel, that even the most trivial basic thing that I
would like to do in parallel, which is evaluate a function on a bunch of
integer inputs, still doesn't work robustly.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5807>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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