I tried to install GRASS 6.1 from source on our HP ProLiant ML570 (4x64bit Intel Xenion, SuSE Enterprise 8.0) and failed completely.
My guess is that SuSE Enterprise 8.0 is not suitable for scientific purpose. Is this right? Has anyone experience with GRASS on 64bit-smp--intel-architecture?
Thanks in advance.
Karl
--------------------------------------------------------------------------
Dr.-Ing. Karl BROICH Tel: +49 / (0) 89 / 6004 2478
Universität der Bundeswehr München Fax: +49 / (0) 89 / 6004 3858
Institut für Wasserwesen
Werner-Heisenberg-Weg 39
D 85577 Neubiberg
--------------------------------------------------------------------------
I tried to install GRASS 6.1 from source on our HP ProLiant ML570
(4x64bit Intel Xenion, SuSE Enterprise 8.0) and failed completely.
can you elaborate? What "failed completely"? (exact cut & paste error
messages please)
It will only get supported if we know where it fails and what needs to
be fixed.
GRASS will not do multi-thread internally, but it will work on SMP just
fine, one process at a time.
My guess is that SuSE Enterprise 8.0 is not suitable for scientific
purpose.
I would think that OS would be fine. The problem is much more likely to
be the 64bit-ness vs. SuSE-ness. More and more people are using 64bit
so any 64bit problems are of interest...
On Wed, May 18, 2005 at 07:01:51PM +0200, Karl Broich wrote:
I tried to install GRASS 6.1 from source on our HP ProLiant ML570 (4x64bit
Intel Xenion, SuSE Enterprise 8.0) and failed completely.
Please report errors in detail. Maybe we can help then...
Markus
My guess is that SuSE Enterprise 8.0 is not suitable for scientific
purpose. Is this right? Has anyone experience with GRASS on
64bit-smp--intel-architecture?
Thanks in advance.
Karl
--------------------------------------------------------------------------
Dr.-Ing. Karl BROICH Tel: +49 / (0) 89 / 6004 2478
Universität der Bundeswehr München Fax: +49 / (0) 89 / 6004 3858
Institut für Wasserwesen
Werner-Heisenberg-Weg 39
D 85577 Neubiberg
--------------------------------------------------------------------------
Im working with Grass to georeference some maps. iv created a new
location where to put georeferenced data. Its a Gauss-Boaga loaction and
into the poj_info's file i see:
towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68
I know this is the correct towgs84 parameter but i cant understand how
does it work. I know that it's used for the datum trasformation, but i
also know that the gauss-boaga system is based on the internation
ellipsoid, so...the wgs84 parameter is used for the trasformation from
which ellipsoid?
Thanks a lot for the help, and sorry for my english...
On 5/19/05, Luca Penasa <luca.penasa@email.it> wrote:
Im working with Grass to georeference some maps. iv created a new
location where to put georeferenced data. Its a Gauss-Boaga loaction and
into the poj_info's file i see:
towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68
I know this is the correct towgs84 parameter but i cant understand how
does it work. I know that it's used for the datum trasformation, but i
also know that the gauss-boaga system is based on the internation
ellipsoid, so...the wgs84 parameter is used for the trasformation from
which ellipsoid?
Luca,
The parameters are used to apply a "datum shift" - somewhat more than
just the conversion between ellipsoids is going on. The transformation
is how to get from the datum+ellpisoid in question to the WGS84 datum.
The actually parameters are x/y/z shifts, x/y/z rotations and an overall
scaling value. Note that this transformation is only used if you convert
between datums.
Best regards,
--
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up | Frank Warmerdam, warmerdam@pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush | Geospatial Programmer for Rent
On 5/19/05, Luca Penasa <luca.penasa@email.it> wrote:
Im working with Grass to georeference some maps. iv created a new
location where to put georeferenced data. Its a Gauss-Boaga loaction and
into the poj_info's file i see:
towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68
I know this is the correct towgs84 parameter but i cant understand how
does it work. I know that it's used for the datum trasformation, but i
also know that the gauss-boaga system is based on the internation
ellipsoid, so...the wgs84 parameter is used for the trasformation from
which ellipsoid?
Luca,
The parameters are used to apply a "datum shift" - somewhat more than
just the conversion between ellipsoids is going on. The transformation
is how to get from the datum+ellpisoid in question to the WGS84 datum.
The actually parameters are x/y/z shifts, x/y/z rotations and an overall
scaling value. Note that this transformation is only used if you convert
between datums.
Best regards,
Frank,
Thanks for your help... Now i want to know more about it, do you know where i can find other material?
I see that in my language there is a strange confusion of words (maybe the confusion is only in my mind, couse im a newbie), but i cant really understand what do you mean (what everyone means) with the word "datum". I think that a datum is a whole reference system (with an ellipsoid and a coordinate system), or have i to understand only "ellipsoid" when you say "datum"?
... thanks a lot for your time
I see that in my language there is a strange confusion of words (maybe
the confusion is only in my mind, couse im a newbie), but i cant really
understand what do you mean (what everyone means) with the word "datum".
I think that a datum is a whole reference system (with an ellipsoid and
a coordinate system), or have i to understand only "ellipsoid" when you
say "datum"?
... thanks a lot for your time
To be honest I get quite confused about datums myself. My understanding
is that a datum implies a particular ellipsoid, but the datum also takes into
account various kinds of survey error, and other systematic deviation
from the ellipsoid. I can't give a good explanation though, since I don't
really understand it well.
Best regards,
--
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up | Frank Warmerdam, warmerdam@pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush | Geospatial Programmer for Rent
(ok, Geodesy is neither a concept nor child of GIS...)
Right now it just has a coulple geodetic links, hopefully everyone can
sectionalize it into more GIS concept areas and populate it with
relevant information. The wiki is simple to modify and adding or fixing
anything is all open to the public.
I think it would be nice of us to keep any GRASS-specific information at
least on a separate part of that page so that the page is also relevant
and of use to the greater FreeGIS community.
On Fri, May 20, 2005 at 12:33:38PM -0400, Frank Warmerdam wrote:
On 5/20/05, Luca Penasa <luca.penasa@email.it> wrote:
> Thanks for your help... Now i want to know more about it, do you know
> where i can find other material?
Luca,
I see a bunch of my old links are dead, but I would suggest you to review
some of the material at: