LI77601: MISSING LOOP NOT SIMDIZED MESSAGE IN LISTING

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • A file compiled with the following options will generate a
    listing file which contains information  if a loop is simdized
    and if not, why.
    
    mpixlcxx_r -c t.C -qsource -qlist -qreport -q64 -O3 -qhot
    -qsmp=omp -qinline -qsimd=auto
    
    Some information messages were missing for some loops.
    

Local fix

  • N/A. The missing message does not affect functionality nor
    performance.
    

Problem summary

  • PROBLEM DESCRIPTION: Messages preventing simdization due to
    non-simdizable strides and non-innermost loops were not being
    emitted in the transformation reports.
    
    USERS AFFECTED: All users combining simd and the transformation
    reports.
    

Problem conclusion

  • Certain messages will now be emitted from SIMD more frequently
    when it cannot simdize a particular loop.  Despite flooding the
    listing file with many more messages, it will provide users a
    much more detailed report.
    

Temporary fix

Comments

APAR Information

  • APAR number

    LI77601

  • Reported component name

    XL C/C++ FOR BG

  • Reported component ID

    5799AG100

  • Reported release

    C10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-10-16

  • Closed date

    2014-02-18

  • Last modified date

    2014-02-18

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

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

Fix information

  • Fixed component name

    XL C/C++ FOR BG

  • Fixed component ID

    5799AG100

Applicable component levels

  • RC10 PSY

       UP



Rate this page:

(0 users)Average rating

Document information


More support for:

XL C/C++ for Blue Gene/Q
Compiler

Software version:

12.1

Reference #:

LI77601

Modified date:

2014-02-18

Translate my page

Machine Translation

Content navigation