RS01189: POSSIBILITY OF EXCESSIVE SYNCHRONIZATION TIME WHEN RUNNING OPPORTUNITIST PARALLEL MIP.

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You can track all active APARs for this component.

APAR status

  • Closed as fixed if next.

Error description

  • Only encountered on Solaris, but has not been proven to be
    unreproducible on other platforms.   However, because it can
    only occur with certainly compiler optimizations and hasn't
    occurred on more frequently used platforms like Windows and
    Linux, this is highly unlikely to occur.  The issue is that
    synch. and wait times on multithreaded runs can potentially
    dominate the run time.
    
    
     Registered as RTC-11000.
    

Local fix

  • Use deterministic parallel or upgrade to CPLEX 12.5.
    

Problem summary

  • Possible long synchronization times running opportunistic
    parallel MIP; depends on compiler optimizations.
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    RS01189

  • Reported component name

    ILOG CPLEX

  • Reported component ID

    5724Y4800

  • Reported release

    C40

  • Status

    CLOSED FIN

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-12-31

  • Closed date

    2012-12-31

  • Last modified date

    2012-12-31

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

Applicable component levels

  • RC50 PSY

       UP



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Document information


More support for:

IBM ILOG CPLEX Optimization Studio

Software version:

C40

Reference #:

RS01189

Modified date:

2012-12-31

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