[Nek5000-users] Question about running error

Sun Jan 2 14:48:23 CST 2011

Hi Albert,

I'm just getting to that in the new manual

www.mcs.anl.gov/~fischer/new.pdf

It looks like you're already on your way.  You can just fool
around w/ postx - you won't break anything.

The basic options are

SET PLOT FORMAT

SET QUANTITY

SET TIME

PLOT

In 3D, it also become important to

SET LOCATION

which allows you to choose the surfaces on which the contour/color fill
plots are drawn.

Also,

SET ATTRIBUTE
SET RESOLUTION
COLOR FILL
30

will give you higher resolution for the contour/color fill plots.

If you want more contour lines:

SET ATTRIBUTE
SET RESOLUTION
CONTOUR LINES
50  (say)

will give you 50 lines.

If you want to fix the range of the plot

SET ATTRIBUTE
SET RANGE
n          (no, not automatic)
0 100      (say, for range of 0 to 100)

Note that for 3D stuff, you probably will find VisIt more
useful.   You can download VisIt by googling visit visualization
software

Paul

On Sat, 1 Jan 2011, Albert S. Kim wrote:

> Thank you so much.
> So far I got this (see attached file) and saw this message:
>
> Hit left button for menu, right button for screen dump
>
> I tried to make movie but not very successful.
>
> Could you tell me in which part of your manual I can learn how to use postx?
>
> Happy New Year.
>
> Albert
>
>
> On Fri, Dec 31, 2010 at 6:29 PM, Paul Fischer <fischer at mcs.anl.gov> wrote:
>
>>
>> Hi Albert,
>>
>> did you try:
>>
>> SET TIME
>> 12                       (type on keyboard)
>> PLOT
>>
>>
>> ?
>>
>> It looks like it read your .fld file correctly...
>>
>> If you type:
>>
>> ls -altr
>>
>> in your directory, do you see several .fld01 .fld02 ... files ?
>>
>> Paul
>>
>>
>>
>> On Fri, 31 Dec 2010, Albert S. Kim wrote:
>>
>>  Probably you can download the zip file below and see it.
>>>
>>> postx works after I used "-X" option of my ssh to the server.
>>>
>>> But, it does not show any graphical results.
>>> Values at the left bottom of postx show all zeros.
>>> I do not know why.  So I was asking whether you think the simulation was
>>> done correct.
>>>
>>> Albert
>>>
>>>
>>> On Fri, Dec 31, 2010 at 5:31 AM, Paul Fischer <fischer at mcs.anl.gov>
>>> wrote:
>>>
>>>
>>>> Hi Albert,
>>>>
>>>> with your x-windows emulator in place, what happens
>>>> when you type "postx" on your linux machine?
>>>>
>>>> What happens when you type, say, gnuplot  or some other
>>>> X-based software?
>>>>
>>>> Cheers,
>>>>
>>>> Paul
>>>>
>>>>
>>>>
>>>> On Thu, 30 Dec 2010, Albert S. Kim wrote:
>>>>
>>>>  Dear Paul
>>>>
>>>>>
>>>>> Thank you so much.
>>>>> Reading your manual, I did the second simulation using "eddy" and got 12
>>>>> output files of "eddy_uv.fld01 -- eddy_uv.fld12".
>>>>> I simply tried postx using
>>>>> (1) X-win emulator from Linux to my Mac and
>>>>> (2) VisIt installed on my Mac (by downloading .dmg file)
>>>>> but did not figure out how to.
>>>>>
>>>>> Perhaps I need more reading, but if you can give me simple tips to make
>>>>> my
>>>>> first visualization using either of them, it will be a real end-of-year
>>>>> gift!
>>>>>
>>>>> All the files are available to check at
>>>>> http://heyum.eng.hawaii.edu/Downloads/eddy.zip
>>>>>
>>>>> Best wishes,
>>>>>
>>>>> Albert
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Wed, Dec 29, 2010 at 10:59 AM, Paul Fischer <fischer at mcs.anl.gov>
>>>>> wrote:
>>>>>
>>>>>
>>>>>  Dear Albert,
>>>>>>
>>>>>> It looks like your case ran successfully. (grep tep *.out shows this)
>>>>>>
>>>>>> You can visualize the results using VisIt.
>>>>>>
>>>>>> There is also a way to visualize using postx -- please see the
>>>>>> (under construction) manual:
>>>>>>
>>>>>> www.mcs.anl.gov/~fischer/new.pdf
>>>>>>
>>>>>> on how to build and run postx.   At present, you would need to
>>>>>> rerun the turbChannel case with
>>>>>>
>>>>>>    subroutine userdat2
>>>>>>    :
>>>>>>    :
>>>>>>    param(66)=4
>>>>>>    param(67)=4
>>>>>>
>>>>>> and with these parameters set to 4 in the .rea file.   This requirement
>>>>>> will go away within a couple of weeks once I convert postx to support
>>>>>> the new default output file format (.f00000 vs .fld00).
>>>>>>
>>>>>> I'm hoping we'll soon have a similar "get started" section about using
>>>>>> VisIt in the manual.   VisIt it much better than postx for
>>>>>> 3D analysis.
>>>>>>
>>>>>> Paul
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>> --
>>>>>
>>>>> ================================
>>>>> Albert S. Kim, Ph.D.
>>>>> Editorial Board for ASCE Journal of Energy Engineering
>>>>> Editorial Advisory Board for Recent Patents on Chemical Engineering
>>>>>
>>>>> Associate Professor
>>>>> Department of Civil and Environmental Engineering
>>>>> University of Hawaii at Manoa
>>>>> 2540 Dole Street, Holmes 383
>>>>> Honolulu, HI 96822
>>>>> Office Telephone:         (808) 956-3718
>>>>> Confidential Online Fax:     (818) 301-7010
>>>>> Department Fax:             (808) 956-5014
>>>>> URL:  http://pam.eng.hawaii.edu
>>>>> Department: http://www.cee.hawaii.edu/persons/kim/kim.htm
>>>>> Facebook: http://www.facebook.com/albert.s.kim
>>>>> Email: albertsk at hawaii.edu
>>>>> ================================
>>>>>
>>>>>
>>>>>
>>>
>>> --
>>>
>>> ================================
>>> Albert S. Kim, Ph.D.
>>> Editorial Board for ASCE Journal of Energy Engineering
>>> Editorial Advisory Board for Recent Patents on Chemical Engineering
>>>
>>> Associate Professor
>>> Department of Civil and Environmental Engineering
>>> University of Hawaii at Manoa
>>> 2540 Dole Street, Holmes 383
>>> Honolulu, HI 96822
>>> Office Telephone:         (808) 956-3718
>>> Confidential Online Fax:     (818) 301-7010
>>> Department Fax:             (808) 956-5014
>>> URL:  http://pam.eng.hawaii.edu
>>> Department: http://www.cee.hawaii.edu/persons/kim/kim.htm
>>> Facebook: http://www.facebook.com/albert.s.kim
>>> Email: albertsk at hawaii.edu
>>> ================================
>>>
>>>
>
>
> -- 
>
> ================================
> Albert S. Kim, Ph.D.
> Editorial Board for ASCE Journal of Energy Engineering
> Editorial Advisory Board for Recent Patents on Chemical Engineering
>
> Associate Professor
> Department of Civil and Environmental Engineering
> University of Hawaii at Manoa
> 2540 Dole Street, Holmes 383
> Honolulu, HI 96822
> Office Telephone:         (808) 956-3718
> Confidential Online Fax:     (818) 301-7010
> Department Fax:             (808) 956-5014
> URL:  http://pam.eng.hawaii.edu
> Department: http://www.cee.hawaii.edu/persons/kim/kim.htm
> Facebook: http://www.facebook.com/albert.s.kim
> Email: albertsk at hawaii.edu
> ================================
>