VMD-L Mailing List

From: Rich Cook (rcook_at_llnl.gov)
Date: Thu Jan 14 2010 - 19:03:21 CST

Well, that's interesting. Your flags do not help, but I looked at
that thread and the original poster mentioned that make test failed.
I tried to do a make test in the Tcl source directory and it fails
exactly as VMD does. The problem is with Tcl therefore. Sigh.
I guess I'm going to have to figure out how to make Tcl work on AIX
here. This is the joy of my job! :-)

On Jan 14, 2010, at 2:44 PM, John Stone wrote:

>
> Rich,
> My AIX builds are based on AIX 6.1 on the NCSA "BluePrint" Blue
> Waters
> software testbed machine here at Illinois. I'm using Tcl 8.5.6 and I
> compiled everything from source myself. When I compiled Tcl from
> source, I had to workaround a bug in the Tcl stack space checking
> that causes problems on AIX, documented here:
> http://*old.nabble.com/--tcl-Bugs-1889719---Stack-space-check-fails-
> on-AIX-td18235084.html
>
> For both VMD and NAMD, we compiled Tcl on this AIX 6.x box
> using configure flags (approximately) like these:
>
> define CFLAGS="-DTCL_NO_STACK_CHECK=1" at configure time, or edit the
> makefile to add that definition.
>
> env CC=xlc CFLAGS="-DTCL_NO_STACK_CHECK=1" --prefix=$HOME/tcl85
> --disable-threads --disable-shared
>
> I don't know if using xlc_r matters if you're just linking the
> library to
> code that could use pthreadds.
>
> More info on AIX stacks: https://*computing.llnl.gov/mpi/
> aix_stack.html
>
> You may want "-bmaxdata:0x80000000" at link time.
>
> Cheers,
> John Stone
> vmd_at_ks.uiuc.edu
>
> On Thu, Jan 14, 2010 at 01:02:33PM -0800, Rich Cook wrote:
>> We can also turn this around and let me ask you, what version of Tcl/
>> Tk did you build against? I don't know what difference the AIX
>> version would make.
>>
>> On Jan 11, 2010, at 5:24 PM, Rich Cook wrote:
>>
>>> Hello,
>>> I have been on the injured list for a bit and am just getting back
>>> to you. It would be cool to meet you sometime if you ever do drop
>>> by.
>>> Here is I think the info you need. I have forgotton how to get the
>>> AIX version information.
>>>
>>> rcook_at_up041 (src): uname -a
>>> AIX up041 3 5 00C5D6DD4C00
>>> It's AIX 5.something
>>>
>>> Tcl and Tk are both 8.5.8
>>>
>>> On Dec 30, 2009, at 11:03 AM, John Stone wrote:
>>>
>>>>
>>>> Hi Rich,
>>>> I just got back from your neck of the woods. I passed
>>>> through Livermore twice last week while I was out in California
>>>> visiting relatives. Someday I'll have to make a point to visit
>>>> the lab and some of the people I know there when I'm out that way.
>>>>
>>>> Which version of AIX is your machine using? My builds on an AIX
>>>> 6.x
>>>> test machine at NCSA didn't have any of these problems. I compiled
>>>> the Tcl/Tk libraries for myself, but I didn't use any particularly
>>>> unusual build flags for those compiles. In the past with certain
>>>> versions
>>>> of AIX and xlc I have had to do things like override the
>>>> compilation flags
>>>> to reduce optimization in order to get a stable build, but in my
>>>> recent
>>>> builds on the AIX 6.x machine at NCSA I didn't need to do this.
>>>> If you can tell me which exact Tcl/Tk minor version you're using,
>>>> I can try doing a build of the same rev and see if this is a
>>>> problem
>>>> with Tcl itself or an interaction with VMD and Tcl.
>>>>
>>>> Cheers,
>>>> John Stone
>>>> vmd_at_ks.uiuc.edu
>>>>
>>>> On Thu, Dec 17, 2009 at 06:08:08PM -0800, Rich Cook wrote:
>>>>> Yes, I have already done that and can give you any info you need.
>>>>>
>>>>> On Dec 17, 2009, at 5:52 PM, John Stone wrote:
>>>>>
>>>>>>
>>>>>> Rich,
>>>>>> I thought it was crashing in a Tk call, but I don't have your
>>>>>> traceback in front of me, so that was my vague recollection.
>>>>>> If it
>>>>>> is dying in Tcl itself, then we're going to have to figure out
>>>>>> what
>>>>>> is actually going on there. Can you recompile your Tcl/Tk
>>>>>> library
>>>>>> with
>>>>>> debugging symbols enabled (i.e. by adding -g to the compilation
>>>>>> flags)?
>>>>>>
>>>>>> Cheers,
>>>>>> John
>>>>>>
>>>>>> On Thu, Dec 17, 2009 at 05:35:12PM -0800, Rich Cook wrote:
>>>>>>> It crashes when I disable Tk in the same place as before. I'm
>>>>>>> confused, because you are telling me to disable Tk but it is
>>>>>>> crashing
>>>>>>> in a Tcl call. Is that intentional? I'm recompiling without
>>>>>>> Tcl
>>>>>>> and
>>>>>>> without Tk just to see what happens...
>>>>>>>
>>>>>>
>>>>>> --
>>>>>> NIH Resource for Macromolecular Modeling and Bioinformatics
>>>>>> Beckman Institute for Advanced Science and Technology
>>>>>> University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
>>>>>> Email: johns_at_ks.uiuc.edu Phone: 217-244-3349
>>>>>> WWW: http://***www.***ks.uiuc.edu/~johns/ Fax: 217-244-6078
>>>>>>
>>>>>
>>>>>
>>>>> /* A function that takes a single integer argument and returns
>>>>> a pointer to a function that takes two integer arguments and
>>>>> returns a floating-point number. */
>>>>> float (*func2(int a))(int, int);
>>>>> Rich Cook
>>>>> rcook_at_llnl.gov
>>>>>
>>>>>
>>>>>
>>>>
>>>> --
>>>> NIH Resource for Macromolecular Modeling and Bioinformatics
>>>> Beckman Institute for Advanced Science and Technology
>>>> University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
>>>> Email: johns_at_ks.uiuc.edu Phone: 217-244-3349
>>>> WWW: http://**www.**ks.uiuc.edu/~johns/ Fax: 217-244-6078
>>>>
>>>
>>>
>>> /* A function that takes a single integer argument and returns
>>> a pointer to a function that takes two integer arguments and
>>> returns a floating-point number. */
>>> float (*func2(int a))(int, int);
>>> Rich Cook
>>> rcook_at_llnl.gov
>>>
>>>
>>>
>>>
>>
>>
>> /* A function that takes a single integer argument and returns
>> a pointer to a function that takes two integer arguments and
>> returns a floating-point number. */
>> float (*func2(int a))(int, int);
>> Rich Cook
>> rcook_at_llnl.gov
>>
>>
>>
>
> --
> NIH Resource for Macromolecular Modeling and Bioinformatics
> Beckman Institute for Advanced Science and Technology
> University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
> Email: johns_at_ks.uiuc.edu Phone: 217-244-3349
> WWW: http://*www.*ks.uiuc.edu/~johns/ Fax: 217-244-6078
>

/* A function that takes a single integer argument and returns
    a pointer to a function that takes two integer arguments and
    returns a floating-point number. */
float (*func2(int a))(int, int);
Rich Cook
rcook_at_llnl.gov