IV33191: WARNING MESSAGE WHEN MAX CPU_ID TO STARTPROC

February 2013 PTF for XL C for AIX, V11.1
February 2013 PTF for XL C/C++ for AIX, V11.1
February 2013 PTF for XL Fortran for AIX, V13.1
February 2013 PTF for XL Fortran Runtime for AIX, V13.1
March 2013 PTF for XL C for AIX, V12.1
March 2013 PTF for XL C/C++ for AIX, V12.1
March 2013 PTF for XL Fortran for AIX, V14.1
March 2013 PTF for XL Fortran Runtime for AIX, V14.1
May 2013 PTF for XL Fortran for AIX, V13.1
May 2013 PTF for XL Fortran Runtime for AIX, V13.1

APAR status

• Closed as program error.

Error description

• Run of the OMP program will output the following warning
  messages, when "startproc=<max cpu_id>" is specified as a
  XLSMPOPTS environment variable:
  
  1587-121 SMP runtime library error. Could not bind thread to
  processor 1.
  1587-106 The value 1 specified for option 'STARTPROC' is not in
  the valid range 0 to 1. All SMP run-time options have been set
  to their default values.
  
  
  
  The following sample program demonstrates the problem:
  
  $ cat t01.f
          program main
          parameter(n=4096)
          real*8 a(n),b(n),c(n)
  
  C$OMP PARALLEL DO
  C$OMP&  SCHEDULE(STATIC)
  C$OMP&  PRIVATE(I)
          do i=1,n
          a(i) =0.0d0
          b(i) =1.0d0
          c(i) =3.0d0
          end do
  C$OMP END PARALLEL DO
          call sub(a,b,c,n)
          stop
          end
  
          subroutine sub(a,b,c,n)
          integer n
          real*8 a(n),b(n),c(n)
          return
          end
  
  
  Compile as:
  
  xlf_r -O2 -qsmp=omp -o t01 t01.f
  
  
  Run the t01 binary, where he maximum of cpu_id is specified as
  "startproc":
  
  
  $ export XLSMPOPTS="startproc=1"
  $ export OMP_NUM_THREADS=1
  $ ./t01
  1587-121 SMP runtime library error. Could not bind thread to
  processor 1.
  1587-106 The value 1 specified for option 'STARTPROC' is not in
  the valid range 0 to 1. All SMP run-time options have been set
  to their default values.
  

Local fix

• N/A
  

Problem summary

• Program issues warning 1587-121 SMP runtime library error.
  Could not bind thread to processor 1.
  

Problem conclusion

• The problem had been fixed.
  

Temporary fix

Comments

APAR Information

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

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

  LI77239 LI77382

Fix information

• Fixed component name

  XL SMP AIX

• Fixed component ID

  5725C7401

Applicable component levels

• R310 PSY U858078

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