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[Bug-glpk] [Fwd: Windows appdata write error - Permission denied]


From: Andrew Makhorin
Subject: [Bug-glpk] [Fwd: Windows appdata write error - Permission denied]
Date: Sat, 23 Jul 2016 14:37:15 +0300

-------- Forwarded Message --------
From: João Gorenstein Dedecca <address@hidden>
To: address@hidden
Subject: Windows appdata write error - Permission denied
Date: Sat, 23 Jul 2016 10:21:17 +0200

Hi,
I am running an optimization problem in python using pyomo 4.3.11388 and
the GLPK solver 4.57 on Windows 7. While running 8 calls in parallel
with multiprocessing.Pool GLPK has a rare write problem to the \Users
\user\AppData\Local\Temp folder: This happens only once out of more than
thousands of successful runs. Anyone can help? Thanks!
ERROR: "[base]\site-packages\pyomo\opt\base\solvers.py", 575, solve
Solver log: GLPSOL: GLPK LP/MIP Solver, v4.57 Parameter(s) specified in
the command line: --write C:\Users\JGOREN~1\AppData\Local\Temp
\tmp4fo_8eqx.glpk.raw --wglp C:\Users\JGOREN~1\AppData\Local\Temp
\tmps7viej_q.glpk.glp --cpxlp C:\Users\JGOREN~1\AppData\Local\Temp
\tmpjnqvqljx.pyomo.lp Reading problem data from 'C:\Users\JGOREN~1
\AppData\Local\Temp\tmpjnqvqljx.pyomo.lp'... 25 rows, 45 columns, 69
non-zeros 223 lines were read Writing problem data to 'C:\Users\JGOREN~1
\AppData\Local\Temp\tmps7viej_q.glpk.glp'... Unable to create 'C:\Users
\JGOREN~1\AppData\Local\Temp\tmps7viej_q.glpk.glp' - Permission denied
Unable to write problem in GLPK format







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