Re: [GRASS-dev] Introduction and GSoC
On Fri, Mar 23, 2012 at 22:04, Eric Momsen wrote: > On Fri, Mar 23, 2012 at 2:41 PM, Wolf Bergenheim > wrote: > > Hi Eric! > > > > It might help us in trying to classify you if you could tell a bit about > > your programming experience. What languages are you comfortable with? I > see > > So far I have been using mostly java. I wrote a small implementation > for a pattern mining algorithm in R, and will be doing a little prolog > this semester. Years ago I helped set up a data transfer/validation > system ( Oracle database <-> visual basic <-> website), but those > skills are pretty rusty now. I certainly expect to learn more > languages. > > Hmm If you are most strong in Java I'd recommend looking at uDig ( http://udig.refractions.net/confluence/display/HACK/Summer+of+Code), since GRASS is C and Python. It might be a better match. > > that you are interested in data mining, which is unfortunately something > I > > know very little about... Did you see any ideas which interested you? You > > The first project for animating raster/(and possibly vector) time > series data was interesting, as well as a number of the imagery > topics. > > Cool, You should probably think about more than one topic and maybe prepare several applications. > > can of course also come up with your own project. Is there for instance > some > > data mining module missing from GRASS? That could be interesting, > especially > > if you prepare a good solid proposal for it. > > I was actually hoping to get farther along with my own research to be > able to (selfishly) propose something directly helpful to my work. (I > do understand the goal is the code, but if I could meet both goals...) > So far I seem to be stuck on the pre-processing side of things. I > will touch base with my adviser again next week to see if we can come > up with something interesting to propose. If we do come up with > something, should I sketch the idea here first? Is someone available > to mentor? > > There might be someone willing to mentor. That remains to be seen. Would your adviser be interested in helping to co-mentor you, along with a GRASS mentor? It would definitely be a good idea to discuss your ideas here first, it will improve the chances of getting selected. --Wolf ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
Re: [GRASS-dev] Introduction and GSoC
On Fri, Mar 23, 2012 at 2:41 PM, Wolf Bergenheim wrote: > Hi Eric! > > It might help us in trying to classify you if you could tell a bit about > your programming experience. What languages are you comfortable with? I see So far I have been using mostly java. I wrote a small implementation for a pattern mining algorithm in R, and will be doing a little prolog this semester. Years ago I helped set up a data transfer/validation system ( Oracle database <-> visual basic <-> website), but those skills are pretty rusty now. I certainly expect to learn more languages. > that you are interested in data mining, which is unfortunately something I > know very little about... Did you see any ideas which interested you? You The first project for animating raster/(and possibly vector) time series data was interesting, as well as a number of the imagery topics. > can of course also come up with your own project. Is there for instance some > data mining module missing from GRASS? That could be interesting, especially > if you prepare a good solid proposal for it. I was actually hoping to get farther along with my own research to be able to (selfishly) propose something directly helpful to my work. (I do understand the goal is the code, but if I could meet both goals...) So far I seem to be stuck on the pre-processing side of things. I will touch base with my adviser again next week to see if we can come up with something interesting to propose. If we do come up with something, should I sketch the idea here first? Is someone available to mentor? -Eric > > --Wolf > > On Fri, Mar 23, 2012 at 20:14, Eric Momsen wrote: >> >> Hi everyone, >> >> I'm relatively new to the GRASS world, and thought I would send a >> quick introduction. After spending some time in the "real" world as >> an engineer, I have returned to university life and have a first goal >> of a master's degree in computer science. My research currently >> involves data mining in an agricultural setting, and the tools include >> GRASS and R. >> >> I'm trying to decide if I've come up the learning curve far enough to >> contribute new code for GRASS as part of the Google Summer of Code. I >> must decide soon, the deadline for student applications is approaching >> fast :) >> >> I've seen the list of project ideas on the wiki, there is a lot there! >> Would anyone want to suggest a few that could be a good place for a >> new arrival to start, and/or would tie in well to data mining? I'm >> happy to discuss on the list, or you can contact me at eric dot momsen >> at gmail. >> >> Thanks, >> Eric >> ___ >> grass-dev mailing list >> grass-dev@lists.osgeo.org >> http://lists.osgeo.org/mailman/listinfo/grass-dev > > ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
[GRASS-dev] Applying in GSOC 2012
Hello , I am a M.S. research student from Lab for Spatial Informatics, International Institute of Information and Technology, Hyderabad, India. I have been developing in C++/Python from past two years, I also know jsp, java, qt,applets, mapServer, google maps API. I am very much interested in GUI development and want to get involved in GRASS, I have used ELVIS and ArcGIS. As a user of GRASS I have found window flooding in wxGUI. I would like to work on wxGUI idea on the ideas page. Apart from adding an integrated GUI I will add swipe feature. I will also like to add PostGIS manager like in QGis. I also developed web based Optical remote sensing virtual lab for DRDO, India and . Is there anybody willing to mentor me? Regards, Mohit Kumar Undergraduate Computer Science Lab for Spatial Informatics International Institute of Information and Technology Hyderabad, India +9.1-9.7.0.3.8.4.0.1.7.5. ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
Re: [GRASS-dev] Fwd: [OSGeo-Discuss] OSGeo has been accepted at Google Summer of Code!
Hi guys, I'd like to propose an ambitious project: Geocoding in GRASS. I'm not talking about georeferencing, but rather geocoding, that is converting addresses into geolocation, and the reverse: given a location, it should return the closest/best address on file. Do you think this could be suitable for GSoC? I'm willing to mentor :) --Wolf On Sat, Mar 17, 2012 at 10:50, Martin Landa wrote: > Hi, > > good news, see below. Time for everyone to review and update our ideas > wiki page... > > http://grass.osgeo.org/wiki/GRASS_SoC_Ideas > > Thanks, Martin > > -- Forwarded message -- > From: Anne Ghisla > Date: 2012/3/16 > Subject: [OSGeo-Discuss] OSGeo has been accepted at Google Summer of Code! > To: OSGeo Google Summer of Code list , OSGeo > Discuss list > > > Hello all, and sorry for cross-posting, > > Wolf, Hamish and I have the great pleasure to announce that OSGeo has > been accepted as a mentoring organization to the Google Summer of Code > program [0]! > > What to do now? > - OSGeo projects: confirm your participation by replying to this email > - Would-be mentors: have a look at Mentors Guide, discuss with > previous years' mentors and register. All links and info can be > found at [1] > - Would-be students: talk with the developers of your preferred > project(s) and start creating your proposals. Have a look at the > ideas page for inspiration [2] > - All: feel free to discuss on soc mailing list on how to improve this > year's SoC, and add your ideas to the wiki [3] > > [0] > http://www.google-melange.com/gsoc/program/accepted_orgs/google/gsoc2012 > and http://www.google-melange.com/gsoc/org/show/google/gsoc2012/osgeo > [1] > http://wiki.osgeo.org/wiki/Google_Summer_of_Code_2012_Administrative > [2] http://wiki.osgeo.org/wiki/Google_Summer_of_Code_2012_Ideas > [3] http://wiki.osgeo.org/wiki/Google_Summer_of_Code_2012_Improvements > > All the best! > > Anne Ghisla, Wolf Bergenheim and Hamish Bowman > -- > OSGeo GSoC Administrators > > ___ > Discuss mailing list > disc...@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/discuss > > > > -- > Martin Landa * http://geo.fsv.cvut.cz/~landa > > ___ > grass-dev mailing list > grass-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/grass-dev > ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
Re: [GRASS-dev] Introduction and GSoC
Hi Eric! It might help us in trying to classify you if you could tell a bit about your programming experience. What languages are you comfortable with? I see that you are interested in data mining, which is unfortunately something I know very little about... Did you see any ideas which interested you? You can of course also come up with your own project. Is there for instance some data mining module missing from GRASS? That could be interesting, especially if you prepare a good solid proposal for it. --Wolf On Fri, Mar 23, 2012 at 20:14, Eric Momsen wrote: > Hi everyone, > > I'm relatively new to the GRASS world, and thought I would send a > quick introduction. After spending some time in the "real" world as > an engineer, I have returned to university life and have a first goal > of a master's degree in computer science. My research currently > involves data mining in an agricultural setting, and the tools include > GRASS and R. > > I'm trying to decide if I've come up the learning curve far enough to > contribute new code for GRASS as part of the Google Summer of Code. I > must decide soon, the deadline for student applications is approaching > fast :) > > I've seen the list of project ideas on the wiki, there is a lot there! > Would anyone want to suggest a few that could be a good place for a > new arrival to start, and/or would tie in well to data mining? I'm > happy to discuss on the list, or you can contact me at eric dot momsen > at gmail. > > Thanks, > Eric > ___ > grass-dev mailing list > grass-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/grass-dev > ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
[GRASS-dev] Introduction and GSoC
Hi everyone, I'm relatively new to the GRASS world, and thought I would send a quick introduction. After spending some time in the "real" world as an engineer, I have returned to university life and have a first goal of a master's degree in computer science. My research currently involves data mining in an agricultural setting, and the tools include GRASS and R. I'm trying to decide if I've come up the learning curve far enough to contribute new code for GRASS as part of the Google Summer of Code. I must decide soon, the deadline for student applications is approaching fast :) I've seen the list of project ideas on the wiki, there is a lot there! Would anyone want to suggest a few that could be a good place for a new arrival to start, and/or would tie in well to data mining? I'm happy to discuss on the list, or you can contact me at eric dot momsen at gmail. Thanks, Eric ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
[GRASS-dev] Re: [GRASS GIS] #1625: Disk performance degrades by several orders of magnitude on two processes
#1625: Disk performance degrades by several orders of magnitude on two processes
-+--
Reporter: sprice | Owner: grass-dev@…
Type: defect | Status: new
Priority: normal | Milestone: 7.0.0
Component: Default | Version: svn-trunk
Keywords: |Platform: MacOSX
Cpu: x86-64 |
-+--
Comment(by huhabla):
To assure that this issue is related to GRASS and not to your
implementation you to need to check the IO performance of a native GRASS
module running in parallel.
I have attached (multiproc_mapcalc.py) a simple grass module to check the
IO disk performance by running multiple instances of r.mapcalc in
parallel. The implementation assures disk syncing at the end of the
processing and measures the time between start and end of processing and
sync in seconds. I did not face large performance drops running multiple
r.mapcalc instances in parallel. Here some examples running on my AMD 6
core 1TB HD Ubuntu 64Bit system:
Running a single r.mapcalc instance to create a 50.000.000 cell integer
raster map:
{{{
GRASS 7.0.svn (TestLL):~/ > python multiproc_mapcalc.py base=raster
nprocs=1 size=50
projection: 3 (Latitude-Longitude)
zone: 0
datum: wgs84
ellipsoid: wgs84
north: 80N
south: 0
west: 0
east: 62:30E
nsres: 0:00:36
ewres: 0:00:36
rows: 8000
cols: 6250
cells: 5000
### main process ###
process id: 4152
### sub process for map ###
ppid 4152 pid 4158
100%
Sync disk
Time for processing: 3.885329 seconds
Removing raster
}}}
Running six r.mapcalc instance to create six 50.000.000 cell integer
raster maps:
{{{
GRASS 7.0.svn (TestLL):~/ > python multiproc_mapcalc.py base=raster
nprocs=6 size=50
projection: 3 (Latitude-Longitude)
zone: 0
datum: wgs84
ellipsoid: wgs84
north: 80N
south: 0
west: 0
east: 62:30E
nsres: 0:00:36
ewres: 0:00:36
rows: 8000
cols: 6250
cells: 5000
### main process ###
process id: 4175
### sub process for map ###
ppid 4175 pid 4182
### sub process for map ###
ppid 4175 pid 4181
### sub process for map ###
ppid 4175 pid 4183
### sub process for map ###
ppid 4175 pid 4186
### sub process for map ###
ppid 4175 pid 4187
### sub process for map ###
ppid 4175 pid 4190
100%
100%
100%
100%
100%
100%
Sync disk
Time for processing: 4.878238 seconds
Removing raster
Removing raster
Removing raster
Removing raster
Removing raster
Removing raster
}}}
--
Ticket URL:
GRASS GIS
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