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Subject: ANSYS/DYNA DEC configuration problem
Author: Heinz.Hempowitz@
Date: 1999-01-15 07:49:00Hi XANSYS / ANSYS / LS-DYNA / FEM folks,
we need some support on a mixed software/hardware configuration problem.
I will explain the problem to you as good as possible.
We work with LS-DYNA 3D as a solver and with some programs as
Pre/Post-processors.
PreProcessors:
ANSYS/DYNA 5.51 Pre/Post
LS-INGRID (will come)
Post Processors:
ANSYS/DYNA 5.51 Pre/Post
LS-TAURUS
SOLVER
LS-DYNA MPP (as ordered from ERAB) ver. 9.402
LS-DYNA normal ver. 9.402
Our standard combination is ANSYS/DYNA PRE/Post as Pre- and Postprocessor
and LS-DYNA 3D solver. Most of the time we use LS-Taurus for post-support.
The Main-Computer is a DEC ALPHASERVER 8400 with 10 EV56 Processors.
We build the model in ANSYS which prepares a *.k-file (LS-DYNA3D keyword
file).
The calculation in LS-DYNA3D produces the d3plot files (LS-Dyna3d results)
and also the *.his, *.db and *.rst files.
Later, we use ANSYS 5.51 for postprocessing. Like we said before, sometimes
also LS-TAURUS.
We used DEC UNIX 4.0d as OP-SYSTEM.
IT WORKED.
Now we should get the EV6 processor upgrade for the DEC ALPHA.
Therefore, our data team had to change the OS to DEC UNIX 4.0e.
On our machine, the "sizer -v" command gives the following output:
Digital UNIX V4.0E (Rev. 1091); Fri Jan 8 16:52:41 MET 1999
After the upgrade, the calculation and preprocessing worked normal, until
we execute a plot or list command in /post1.
- we had ALLWAYS a CRASH with SEGMENTATION FAULT ERROR .
it was possible to resume, to ask for a set,list and a set,1,20.
CRASH on prns,***,*** and also on plns,***,***.
prns,epto
PRINT EPTO NODAL SOLUTION PER NODE
*** ERROR *** CP= 7.215 TIME= 17:48:44
An unexpected error ( Segmentation Violation ) has occurred... Memory
resident data has been corrupted. ANSYS is unable to recover and will
terminate.
- ANSYS had the same error also in using the PC-version and reading the
data from the DEC.
Same Crash, same behaviour, but with a little bit more detailed error
description.
prns,epto
PRINT EPTO NODAL SOLUTION PER NODE
*** ERROR *** CP= 7.215 TIME= 17:48:44
An unexpected error ( Segmentation Violation ) has occurred... Memory
resident data has been corrupted. ANSYS is unable to recover and will
terminate.
Previously saved files are unaffected.
Current ANSYS Traceback:
panavg
paprns
paprnt
post1
ANSYS
DATA INPUT WRITTEN ON test.log
- also LS-Taurus had an error in plotting stress or strain vectors.
Crash with the folowing error:
forrtl: error (65): floating invalid
Abort process
Because LS-DYNA3D and ANSYS/DYNA Pre/Post should run on the DEC ALPHA with
the new EV6 processors, it must be some solvable conflict or problem in the
configuration of the machine or LS-DYNA or ANSYS.
ALL of the desired procedures have worked very good on the old EV56
processors with DEC UNIX 4.0d
The errors are independent on the input file.
- the installed software list:
setld -i: (See attached file: setld-i.log)
We have some serious problems in finding the real error behind the
segmentation fault.
Maybe someone at ANSYS INC. or LSTC or COMPAQ/DEC can help us.
best regards,
Heinz
Heinz Hempowitz
NORSK HYDRO ASA
Technology & Projects
LME
FEA-Team
P.O. Box 190
N-1321 Stabbek
NORWAY
phone ++47 2273 7763
fax ++47 2273 9535
mobile ++47 950 83 885
email heinz.hempowitz@h...