RE: [GRASS-user] GIS and GPU
And I am -very- new to python, do you have any clue on how to begin? Send raster to a python matrix? The major deal that i'am thinking is to implement massive orthoretification of sat images on grass using RPCs (for comercial sats) or Rigorous models (for CBERS sat, that have free 2,5m pan images). I have some of the math, but I'am just beguining to learn programing. Am I dreaming too high? Anyway it will be fun to try. Regards. Pablo. Hi I'm interested in this. New to GRASS though. Doing some experiment. Many CPU bound task of GRASS is not even taking advantage of multicore now, let alone GPU. Peng Pablo Carreira wrote: Hi, I'am curious to know if there is any development is using GPU to accelerate some tasks in GIS, like raster calculations. I have an Nvidia gpu and found pyCUDA parallel computation very interesting. Is there any paper in this subject to read? Thanks. Pablo Torres Carreira _ Fique protegido de ameças utilizando o Novo Internet Explorer 8. Baixe já, é grátis! http://brasil.microsoft.com.br/IE8/mergulhe/?utm_source=MSN%3BHotmailutm_medium=Taglineutm_content=Tag1utm_campaign=IE8___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
RE: [GRASS-user] GIS and GPU
Hi Peng, I want to make a new function, I want to put the orthoretification mathematical theory that I have in any programming language, but I am lost. The last program that I wrote was 8 years ago in VBasic. The criteria for choosing python is that Python looks to me more easy to learn. And the idea of using CUDA is to develop a concept. Pablo Torres Carreira Date: Sun, 6 Dec 2009 14:28:33 -0500 From: d...@cs.utk.edu To: pablotcarre...@hotmail.com Subject: Re: [GRASS-user] GIS and GPU Pablo I've only been using C and cuda. As to python I'm not so sure either. Do you have to work with python or you just want some function of GRASS to take advantage of GPU and run faster? Peng Pablo Carreira wrote: And I am -very- new to python, do you have any clue on how to begin? Send raster to a python matrix? The major deal that i'am thinking is to implement massive orthoretification of sat images on grass using RPCs (for comercial sats) or Rigorous models (for CBERS sat, that have free 2,5m pan images). I have some of the math, but I'am just beguining to learn programing. Am I dreaming too high? Anyway it will be fun to try. Regards. Pablo. Hi I'm interested in this. New to GRASS though. Doing some experiment. Many CPU bound task of GRASS is not even taking advantage of multicore now, let alone GPU. Peng Pablo Carreira wrote: Hi, I'am curious to know if there is any development is using GPU to accelerate some tasks in GIS, like raster calculations. I have an Nvidia gpu and found pyCUDA parallel computation very interesting. Is there any paper in this subject to read? Thanks. Pablo Torres Carreira Agora a pressa é amiga da perfeição. Chegou Windows 7. Conheça. http://www.microsoft.com/brasil/windows7/default.html?WT.mc_id=1539 _ Com o Internet Explorer 8 você tem seu contéudo favorito em poucos cliques. Conheça! http://brasil.microsoft.com.br/IE8/mergulhe/?utm_source=MSN%3BHotmailutm_medium=Taglineutm_content=Tag5utm_campaign=IE8___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] GIS and GPU
Ideally, you could work to replace the old i.orthophoto with new tools built in Python and wxPython to incorporate into the current GRASS development. This would be greatly appreciated by many. IMHO, and as someone who is not trained formally in programming, Python is easy to learn and is quite powerful. The wxPython tool set provides a wide array of event-driven interface building tools that integrates tightly with the object-oriented Python language. There are many good introductory and advanced books for Python, as well as a lot of on-line help. AFAIK, there is only 1 book for wxPython, though a decent amount of help on-line. Michael C. Michael Barton Director, Center for Social Dynamics Complexity Professor of Anthropology, School of Human Evolution Social Change Arizona State University Phone: 480-965-6262 Fax: 480-965-7671 www: www.public.asu.edu/~cmbarton, http://csdc.asu.edu On Dec 6, 2009, at 5:58 PM, grass-user-requ...@lists.osgeo.org wrote: Date: Sun, 6 Dec 2009 19:44:24 -0200 From: Pablo Carreira pablotcarre...@hotmail.com Subject: RE: [GRASS-user] GIS and GPU To: grass-user@lists.osgeo.org Message-ID: snt114-w63c4038a43319f2b13a9b8d6...@phx.gbl Content-Type: text/plain; charset=iso-8859-1 Hi Peng, I want to make a new function, I want to put the orthoretification mathematical theory that I have in any programming language, but I am lost. The last program that I wrote was 8 years ago in VBasic. The criteria for choosing python is that Python looks to me more easy to learn. And the idea of using CUDA is to develop a concept. Pablo Torres Carreira ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] GIS and GPU
Instead of CUDA, maybe consider using OpenCL, as that is a vendor-independent standard which works on GPUs, CPUs and DSPs. There seem to be several Python wrappers for OpenCL. Ben Pablo Carreira wrote: Hi, I'am curious to know if there is any development is using GPU to accelerate some tasks in GIS, like raster calculations. I have an Nvidia gpu and found pyCUDA parallel computation very interesting. Is there any paper in this subject to read? Thanks. Pablo Torres Carreira Quer conexões de rede mais fácil? Clique e conheça o Windows 7. http://www.microsoft.com/brasil/windows7/default.html?WT.mc_id=1539 ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user -- Benjamin Ducke Geospatial Consultant Oxford Archaeology Digital Janus House Osney Mead OX2 0ES Oxford, U.K. Tel: +44 (0)1865 263 800 (switchboard) Tel: +44 (0)1865 980 758 (direct) Fax :+44 (0)1865 793 496 benjamin.du...@oadigital.net http://oadigital.net -- Files attached to this email may be in ISO 26300 format (OASIS Open Document Format). If you have difficulty opening them, please visit http://iso26300.info for more information. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
