Problem Note 46217: Time limit reached when an LP relaxation is difficult to solve using the MILP solver in PROC OPTMODEL
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An issue can occur with the MILP solver of PROC OPTMODEL. This issue develops if the time it takes to process the first few nodes is excessive. The excessive processing time results from an LP relaxation that might be difficult to solve or the Simplex warmstart being inefficient. In this case, the solver might stop execution with the note:
NOTE: CPU time limit reached.
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 | 64-bit Enabled AIX | 9.22 | 9.22 | 9.2 TS2M3 | 9.2 TS2M3 |
A fix for this issue for SAS/OR 9.22 is available at:
http://ftp.sas.com/techsup/download/hotfix/HF2/C92.html#46217| Type: | Problem Note |
| Priority: | medium |
| Topic: | Analytics ==> Mathematical Optimization SAS Reference ==> Procedures ==> OPTMODEL |
| Date Modified: | 2012-05-15 15:45:14 |
| Date Created: | 2012-04-04 10:29:54 |