[jira] [Updated] (MATH-819) SimplexSolver - InfeasibleSolution when feasible
[ https://issues.apache.org/jira/browse/MATH-819?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Thomas Neidhart updated MATH-819: - Fix Version/s: (was: 3.2) SimplexSolver - InfeasibleSolution when feasible Key: MATH-819 URL: https://issues.apache.org/jira/browse/MATH-819 Project: Commons Math Issue Type: Bug Affects Versions: 3.1 Environment: Windows 7, JDK 1.7.0_03 Reporter: Raghu Rangarajan Assignee: Thomas Neidhart Attachments: CommonsSolver2.java, lp-octave.txt, test.log, test.mod, test.out I am seeing an odd behavior with the latest code in the main trunk (Directory revision: 1358535). The solver throws NoFeasibleSolutionException for a problem which has a feasible solution. Just by commenting out the last constraint, we get a feasible solution. And for that solution, the constraint in question does not seem to be playing a role. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (MATH-819) SimplexSolver - InfeasibleSolution when feasible
[ https://issues.apache.org/jira/browse/MATH-819?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Gilles updated MATH-819: Fix Version/s: 3.2 SimplexSolver - InfeasibleSolution when feasible Key: MATH-819 URL: https://issues.apache.org/jira/browse/MATH-819 Project: Commons Math Issue Type: Bug Affects Versions: 3.1 Environment: Windows 7, JDK 1.7.0_03 Reporter: Raghu Rangarajan Assignee: Thomas Neidhart Fix For: 3.2 Attachments: CommonsSolver2.java, lp-octave.txt, test.log, test.mod, test.out I am seeing an odd behavior with the latest code in the main trunk (Directory revision: 1358535). The solver throws NoFeasibleSolutionException for a problem which has a feasible solution. Just by commenting out the last constraint, we get a feasible solution. And for that solution, the constraint in question does not seem to be playing a role. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (MATH-819) SimplexSolver - InfeasibleSolution when feasible
[ https://issues.apache.org/jira/browse/MATH-819?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Raghu Rangarajan updated MATH-819: -- Attachment: test.out test.mod test.log SimplexSolver - InfeasibleSolution when feasible Key: MATH-819 URL: https://issues.apache.org/jira/browse/MATH-819 Project: Commons Math Issue Type: Bug Affects Versions: 3.1 Environment: Windows 7, JDK 1.7.0_03 Reporter: Raghu Rangarajan Attachments: CommonsSolver2.java, lp-octave.txt, test.log, test.mod, test.out I am seeing an odd behavior with the latest code in the main trunk (Directory revision: 1358535). The solver throws NoFeasibleSolutionException for a problem which has a feasible solution. Just by commenting out the last constraint, we get a feasible solution. And for that solution, the constraint in question does not seem to be playing a role. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (MATH-819) SimplexSolver - InfeasibleSolution when feasible
[ https://issues.apache.org/jira/browse/MATH-819?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Thomas Neidhart updated MATH-819: - Attachment: lp-octave.txt an octave version of the same problem. Octave uses glpk which does not find a solution either. glpk does a scaling of the coefficient matrix by default, which would be a nice addition to commons-math too imho. SimplexSolver - InfeasibleSolution when feasible Key: MATH-819 URL: https://issues.apache.org/jira/browse/MATH-819 Project: Commons Math Issue Type: Bug Affects Versions: 3.1 Environment: Windows 7, JDK 1.7.0_03 Reporter: Raghu Rangarajan Attachments: CommonsSolver2.java, lp-octave.txt I am seeing an odd behavior with the latest code in the main trunk (Directory revision: 1358535). The solver throws NoFeasibleSolutionException for a problem which has a feasible solution. Just by commenting out the last constraint, we get a feasible solution. And for that solution, the constraint in question does not seem to be playing a role. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (MATH-819) SimplexSolver - InfeasibleSolution when feasible
[ https://issues.apache.org/jira/browse/MATH-819?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Raghu Rangarajan updated MATH-819: -- Attachment: CommonsSolver2.java SimplexSolver - InfeasibleSolution when feasible Key: MATH-819 URL: https://issues.apache.org/jira/browse/MATH-819 Project: Commons Math Issue Type: Bug Affects Versions: 3.1 Environment: Windows 7, JDK 1.7.0_03 Reporter: Raghu Rangarajan Attachments: CommonsSolver2.java I am seeing an odd behavior with the latest code in the main trunk (Directory revision: 1358535). The solver throws NoFeasibleSolutionException for a problem which has a feasible solution. Just by commenting out the last constraint, we get a feasible solution. And for that solution, the constraint in question does not seem to be playing a role. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira
