Problem Note 45820: Optimization solvers stop execution for numerically unstable problems
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For numerically unstable instances solved by the MILP or simplex LP solvers (primal, dual, network, or crossover) within PROC OPTMILP, PROC OPTLP, and PROC OPTMODEL, the solver might stop with a “floating point exception”, “domain error”, or similar critical error message. The exact message depends on the computing platform used and exact circumstances involved. The error occurs under very specific circumstances when internal data structures become corrupted while dealing with unstable linear algebra operations.
Click the Hot Fix tab in this note to access the hot fix for this issue.
Operating System and Release Information
| Product Family | Product | System | Product Release | SAS Release | ||
| Reported | Fixed* | Reported | Fixed* | |||
| SAS System | SAS/OR | Solaris for x64 | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 |
| OpenVMS on HP Integrity | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| Linux for x64 | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| Linux | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| HP-UX IPF | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| 64-bit Enabled Solaris | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| 64-bit Enabled HP-UX | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| 64-bit Enabled AIX | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| Windows Vista for x64 | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| Windows Vista | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| Microsoft Windows XP Professional | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| Microsoft Windows Server 2008 for x64 | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| Microsoft Windows Server 2003 for x64 | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| Microsoft Windows Server 2003 Standard Edition | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| Microsoft Windows Server 2003 Enterprise Edition | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| Microsoft Windows Server 2003 Datacenter Edition | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| Microsoft® Windows® for x64 | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| Microsoft Windows XP 64-bit Edition | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| Microsoft Windows Server 2003 Enterprise 64-bit Edition | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| Microsoft Windows Server 2003 Datacenter 64-bit Edition | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| Microsoft® Windows® for 64-Bit Itanium-based Systems | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
| z/OS | 9.21 | 9.3_M1 | 9.2 TS2M0 | 9.3 TS1M0 | ||
A fix for this issue for SAS Threaded Kernel Extensions for Operations Research 9.3 is available at:
https://tshf.sas.com/techsup/download/hotfix/HF2/F95.html#45820| Type: | Problem Note |
| Priority: | medium |
| Topic: | Analytics ==> Mathematical Optimization SAS Reference ==> Procedures ==> OPTLP SAS Reference ==> Procedures ==> OPTMILP SAS Reference ==> Procedures ==> OPTMODEL |
| Date Modified: | 2012-03-16 10:41:11 |
| Date Created: | 2012-02-27 15:07:16 |