HC84354: DEPLORABLE PERFORMANCE ON THE KINEMUSE FUNCTION : SLOWER UNDER SOLARIS THAN UNDER AIX

APAR status

• Closed as Permanent restriction.

Error description

• Scenario:
  --------
  1- Read the provided model (verify that the visualisation is in
  NHR mode)
  2- Go to KINEMUSE / USE LAWS / VARIATN
  3- Enter values 360,1 (simulation startes for a cycle).
  4- Take the CPU time and ELAPSE time.
  5- Do NO and begin again the step 4 in SHADING, or click on
  ABSOLUTE, enter 0 and get back to VARIATN. Repeat step 4.
  6- Take the CPU time and ELAPSE time in shading.
  Play the scenario on IBM 43P-150 GXT3000P, SUN U60 and HP C240.
  STATIONS                            TIMES
                           ....NHR            ..  SHADING
                       CPU     ELAPSE time      CPU      ELAPSE
  time
  SUN U60              70          76           49           53
  IBM 43P-150          12          18           24           26
  HP C240              17          20           25           31
  .
  The SUN is the slowest, the SHADING mode is most speed than NHR
  mode.
  This incident is not refer to a particular model.
  .
  So, an apar was opened (HC77155) and closed PRS with the
  following solution:
  The problem is linked to PHIGS/XGL soft.
  The by-pass is using PHIGS/OpenGL with following command
  export PHIGSOGL=1, just before running CATIA.
  .
  Then, under solaris 2.8 and the performance are better in NHR
  than in shading.
  But, the performance under solaris are always deplorable than
  under AIX.
  .
  Here are the results of my tests on 422 under solaris 2.8:
  STATIONS                            TIMES
                             NHR                   SHADING
                       CPU     ELAPSE time      CPU      ELAPSE
  time
  SUN U60              24          31           109          117
  IBM 43P-150           9          10            18           18
  .
  Note: the PHIGSOGL variable has been set to 1 under the two OS
  version (2.7 & 2.8), but it seems to had no impact on the
  performance.
  .
  

Local fix

Problem summary

•  INCIDENT DIAGNOSIS:
  The KINEMUSE function performance is deplorable and worse in SUN
  system than in AIX system.
  .
  

Problem conclusion

• THIS PROBLEM IS PERMANENT RESTRICTION IN CATIA
  
   TECHNICAL EXPLANATION FOR THE RESTRICTION:
  It is a problem with PHIGS depending on the SUN system.
  .
   BY-PASS:
  This problem has been being submitted at SUN to provide possible
  solutions. It is not a problem with CATIA.
  .
  

Temporary fix

Comments

APAR Information

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

  HC84350

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

Fix information

Applicable component levels