Timeline


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Jul 14, 2009:

10:46 PM Changeset [1415] by wehart
Optimization of the processing done to generate generic …
10:25 PM Changeset [1414] by wehart
A major rework of the Pyomo core. This change eliminates the use of …
12:36 PM Changeset [1413] by jwatson
Further update of network flow profile output, reflecting SVN versions …
12:18 PM Changeset [1412] by jwatson
Updated profile for network flow pysp example based on Bill's latest …
11:50 AM Changeset [1411] by wehart
Bug fix: finite numeric constants were being treated as infinite. …
2:36 AM Changeset [1410] by wehart
Various optimizations.
1:53 AM Changeset [1409] by wehart
Update to tests based on changes to constraint instantiation.
1:52 AM Changeset [1408] by wehart
Misc code optimization.
1:52 AM Changeset [1407] by wehart
A major rework of how constraints are instantiated. This avoids …

Jul 13, 2009:

7:39 PM Changeset [1406] by wehart
Some further code optimizations.
7:07 PM Changeset [1405] by wehart
Optimizing construction of VarValue? objects.
6:48 PM Changeset [1404] by wehart
Bug fix.
6:32 PM Changeset [1403] by wehart
Various loop optimizations.
6:32 PM Changeset [1402] by wehart
Misc loop optimizations.
3:56 PM Changeset [1401] by wehart
Various Pythonic coding optimizations to reduce the run-time of Pyomo …
1:22 AM Changeset [1400] by wehart
Major change of NumericalValue? subclass semantics. The 'value' data …

Jul 10, 2009:

1:23 AM Changeset [1399] by wehart
Reworked the way that 'empty' objectives and constraints are dealt …
1:17 AM Changeset [1398] by wehart
Adding a p-median Pyomo example.

Jul 9, 2009:

1:08 PM Changeset [1397] by wehart
Using an explicit temporary file when launching the shell command …
12:33 PM Changeset [1396] by wehart
The 'set representation' of virtual sets is just the set object …
12:00 PM Changeset [1395] by wehart
Misc change.
11:59 AM Changeset [1394] by wehart
Baseline change.

Jul 8, 2009:

10:34 PM Changeset [1393] by jwatson
Across all PH examples, made the scenario sets ordered, so output is sane.
10:27 PM Changeset [1392] by jwatson
I found a case where the run-time of pyomo is not good, in terms of …
6:56 PM Changeset [1391] by jwatson
Flushed out instance for stochastic network flow problem, including …
4:25 PM Changeset [1390] by wehart
Adding a baseline comparison file for CPLEX.
4:21 PM Changeset [1389] by wehart
Bug fix. Only discard the trailing suffix, following the last '.'.
2:48 PM Changeset [1388] by jwatson
Went nuts with python list comprehensions, and significantly reduced …
2:17 PM Changeset [1387] by wehart
Revisions to make mock tests work in a portable manner. Note that the …

Jul 7, 2009:

11:18 PM Changeset [1386] by jwatson
Fixed final bugs in stochastic network flow model; replicates AMPL …
10:46 PM Changeset [1385] by jwatson
More updates to stochastic network flow model.
9:06 PM Changeset [1384] by jwatson
Fixed _name attribute reference in infrequently-used portion of CPLEX …
6:40 PM Changeset [1383] by jwatson
All data now reads correctly for network flow example.
6:33 PM Changeset [1382] by jwatson
Getting closer on simple network flow model conversion.
6:19 PM Changeset [1381] by jwatson
A not-quite-complete translation of our AMPL model of a simple …
6:05 PM Changeset [1380] by wehart
Making Set(rule=foo) a synonym for Set(initialize=foo)
4:54 PM Changeset [1379] by jwatson
Update on pysp documentation from David.
3:14 PM Changeset [1378] by jwatson
Fixed issues with PH SIZES example when upgrading to Bill's latest …
3:09 PM Changeset [1377] by jwatson
Fixed some output issues arising with unused variables in the forestry …
2:34 PM Changeset [1376] by jwatson
In PH, changed "time.clock()" calls to "time.time()" calls, in order …
2:15 PM Changeset [1375] by jwatson
Added check that the input stage ID set to the ScenarioTree?
1:30 PM Changeset [1374] by jwatson
Updated pysp user's document based on our recent meeting. Doesn't …
12:31 PM Changeset [1373] by jwatson
Simplified PH pretty-print routines to use the tree node variable …
12:19 PM Changeset [1372] by jwatson
Added minimum and maximum statistics (in addition to the usual …
11:26 AM Changeset [1371] by jwatson
Made output of PH timing statistics optional (defaulting to false), in …
1:30 AM Changeset [1370] by wehart
Updates to CPLEX baselines.
1:29 AM Changeset [1369] by wehart
Further update to PICO-related hack.
1:17 AM Changeset [1368] by wehart
Further fixes to CPLEX output parse. This includes parsing the input …
1:16 AM Changeset [1367] by wehart
Changed the error message generated when mock data is not available.
1:15 AM Changeset [1366] by wehart
Misc tightening of parse semantics.
1:14 AM Changeset [1365] by wehart
A hack to accomodate a semantic discrepancy in PICO *.sol files. …
1:13 AM Changeset [1364] by wehart
Misc cleanup.
1:11 AM Changeset [1363] by wehart
New baselines.

Jul 6, 2009:

7:09 PM Changeset [1362] by wehart
Fixes to make the use of 'ilmlist' work correctly. Standardized on …
6:25 PM Changeset [1361] by wehart
Misc update to baseline data, esp. to support mock tests.
5:53 PM Changeset [1360] by wehart
Misc edits to logging info in convert.py Adding ILM shell command, …
5:53 PM Changeset [1359] by wehart
Major revision of CPLEX driver. It now provides output that is …
5:50 PM Changeset [1358] by wehart
Update of CPLEX tests. These now appear to work correctly on expo. …
5:50 PM Changeset [1357] by jwatson
Fixed ._value versus .value issue occuring in maximization problems.
5:48 PM Changeset [1356] by jwatson
Disabled verbosity in the farmer ph example driver.
5:45 PM Changeset [1355] by jwatson
Changes to complete upgrade of pysp to Bill's latest (v1354) …
4:56 PM Changeset [1354] by jwatson
Complete compatability fix for pysp relative to Bill's v1330 checkin.
4:35 PM Changeset [1353] by jwatson
Edits to partially bring pysp in compatability with Bill's v1330 check-ins.
1:57 AM Changeset [1352] by wehart
Update to baseline. The 'sol' reader has been augmented to use x* for …
1:55 AM Changeset [1351] by wehart
Disabling a test. It's not clear what this test does.
1:52 AM Changeset [1350] by wehart
A major rework of the CBC solver plugin. This has been updated, and …
1:50 AM Changeset [1349] by wehart
Compile multi-line messages into a single line. This resolves a parse …

Jul 5, 2009:

11:56 PM Changeset [1348] by wehart
Misc update of PICO testing harness. Rework of CBC tests, in …
11:48 PM Changeset [1347] by wehart
Misc edit of PICO plugin. Adding parsing of CPLEX commandline output, …
11:47 PM Changeset [1346] by wehart
Misc simplifications of the CPLEX testing harness.
8:34 PM Changeset [1345] by wehart
Update of GLPK and PICO solver/tests. Now, these two solvers appear …

Jul 2, 2009:

7:37 PM Changeset [1344] by wehart
Misc change to pprint() semantics. Now, ordered sets are printed in …
7:12 PM Changeset [1343] by wehart
Adding command-line option to specify the directory use for temporary …
6:49 PM Changeset [1342] by wehart
. Reworked errors when computing values. These errors now raise …
5:45 PM Changeset [1341] by wehart
Misc revisions of exception messages.
11:11 AM Changeset [1340] by wehart
Simplifying this example, including documentation from the PyUtilib? wiki.
10:44 AM Changeset [1339] by wehart
A skeleton directory for setting up PYSP tests.

Jul 1, 2009:

6:50 PM Changeset [1338] by wehart
A major rework of how component attributes are managed for …

Jun 30, 2009:

4:57 PM Changeset [1337] by jwatson
Added IPHExtension plugin to facilitate user intercession into PH workings.
3:52 PM Changeset [1336] by jwatson
Corrected forestry models - added non-negativity constraints on real …
12:50 PM Changeset [1335] by jwatson
Update of Chile forestry example.
12:27 PM Changeset [1334] by jwatson
Fixes to Davis forestry example model/scenario.
12:24 PM Changeset [1333] by jwatson
Corrected various issues with 2-stage forestry example.
11:50 AM Changeset [1332] by jwatson
Fixed problem with indexed cost variables in pysp - was previously …
11:25 AM Changeset [1331] by wehart
Bug fix in test.

Jun 28, 2009:

11:36 PM Changeset [1330] by wehart
A revision to Pyomo semantics. Now, expressions are not evaluated …

Jun 26, 2009:

12:53 PM Changeset [1329] by jwatson
Hack in CPLEX solver interface to by-pass issue with too much output …

Jun 25, 2009:

11:56 PM Changeset [1328] by jwatson
Fixed issue with "wx" term in maximization problems for PH - if …
11:22 PM Changeset [1327] by jwatson
Fixed bug/omission relating to inverting the sign of the PH quadratic …
2:46 PM Changeset [1326] by jwatson
Adding simple two-stage version of DAVIS forestry problem.

Jun 24, 2009:

4:42 PM Changeset [1325] by jwatson
Some fixes in PH and related files to correct behaviors relating to …
2:33 PM Changeset [1324] by jwatson
Fixed pretty-print of PH state to output nan when "None" values are …
2:17 PM Changeset [1323] by jwatson
Eliminated the deep copies of index sets for newly constructed …
1:57 PM Changeset [1322] by jwatson
Speed improvement to PH initialization change introduced in last commit.
1:37 PM Changeset [1321] by jwatson
Modified PH initialization to be compatible with index-specific …
12:44 PM Changeset [1320] by jwatson
Restructured forestry example files.
12:37 PM Changeset [1319] by jwatson
Added index-aware pretty-print to scenario tree output routines.
12:09 PM Changeset [1318] by jwatson
Added parsing and extraction of variable indices in scenario tree …

Jun 23, 2009:

11:38 PM Changeset [1317] by jwatson
Preparation for index-specific stage and cost variables in pysp - …
5:39 PM Changeset [1316] by jwatson
For the forestry example, imported new+improved phdriver from farmer …
5:34 PM Changeset [1315] by jwatson
Added scenario tree structure/data definitions for 4-stage forestry …
5:15 PM Changeset [1314] by jwatson
Fixed issue in printing final solution in PH when the number of …
5:03 PM Changeset [1313] by jwatson
When the CPLEX license server is down, no solution file is (of course) …

Jun 15, 2009:

10:20 AM Changeset [1312] by wehart
Extending the Constraint(model.A, rule=f) constructor semantics. This …
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