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Hi Kevin... No 64 bit experience (or machines) here....however.... I did not need cygwin to run ant on windows, but the 64-bit-ed-ness might make a difference. I always just use the instructions at <http://ant.apache.org/manual>...but then again I'm using a 32 bit machine. I do not believe you need to run this under cygwin (unless, again, there is a 64 bit issue), since cygwin is an "environment" (like an operating system). From the ant manual: "We get lots of support calls from Cygwin users. Either it is incredibly popular, or it is trouble. If you do use it, remember that Java is a Windows application, so Ant is running in a Windows process, not a Cygwin one. This will save us having to mark your bug reports as invalid." Hope that helps and not hinders... tom On 10/10/07, Kevin Manross <kevin.manross@xxxxxxxx> wrote: > > Greetings! > > I've decided to try to build IDV from the source code on a 64-bit > computer to try and answer my own question. However, the only 64-bit > computer that I have access to is a Windoze machine (running a 64-bit > version of XP). > > I know that Ant is required to build the IDV from the source, and it > looks like you can run Ant on windoze using Cygwin. I have some > familiarity with Cygwin, but often seem to have problems with setting my > paths, particularly when it comes to invoking java through Cygwin. > > Could anyone help me with either A) "how to build IDV on a windoze box", > or B) setting up my cygwin path? > > Many thanks!! > > -kevin. > > > Kevin Manross wrote: > > Good thread! > > > > It sounds as if the caching will at least allow me to load al my data in > > and it should be sufficient for data analysis. If we want to create > > long loops, we'll do that through ISL. > > > > Getting back to what I understand about the Java heap, and what > > Valentijn has described, the limitation is dependent on: > > > > Physical RAM > > Architecture (32 bit vs. 64 bit) > > OS > > Java Version(?) > > > > However, even if I have a 64-bit machine with 4-8 Gb RAM running 64-bit > > version of WindozeXP (Or linux), the IDV comes with its own JVM. > > > > Will this limit my potential heap size? > > > > Would I be better off to install the 64-bit version of Java (Java3D?) > > and then download/build the IDV so it uses the computer's native JVM? > > > > Thanks!! > > > > -kevin. > > > > > > HansPeter Roesli wrote: > > > >> Hi all > >> > >> This caching is what I was looking for since some time. Good to know > >> it is there now. I am currently testing it with a long and heavy > >> satellite image loop (keep fingers crossed). > >> > >> I am running IDV on 2 notebooks, both with 2GB of RAM. One runs under > >> XP and I cannot safely go beyond 1000m. On the other one under SuSE > >> Linux 10.1 RAM is set to 1512m. > >> > >> Cheers, HP > >> > >> Valentijn Venus wrote: > >> > >>> Kevin. Jeff, > >>> > >>> that new caching facility does sound promising! > >>> > >>> As far as i know JAVA Heap spaces can grow unlimited on (OPen) > >>> Solaris systems, and probably also on Linux 64-bit with JAVA 64-bit > >>> but maybe someone else would be able to tell you... > >>> > >>> Here are some of our experiences assigning space heap sizes all > >>> running IDV from a Java webstart jnlp: > >>> > >>> -Linux 64-bit takes you up to 3.5 Gb > >>> -Windows 32-bit varies (depending on what dll's are loaded at which > >>> memory address) roughly 1.5 Gb > >>> > >>> see some of the jnlp's at http://adde.itc.nl at the "Download" section. > >>> > >>> We'll have to wait for Dolphin JAVA virtual machine for large memory > >>> addressing to make it into JAVA webstart which by then will also > >>> support all the 64-bit goodies. > >>> > >>> Jeff, would you be able to tell if a 64-bit version of java3d is in > >>> the making or will these two (32-bit java3d & 64-bit jvm) co-exist > >>> happily together? > >>> > >>> Kind regards, Valentijn V. Venus, M.Sc. Researcher/Lecturer in RS/GIS > >>> for Food Security ITC > >>> P.O.Box 6 > >>> 7500 AA Enschede > >>> The Netherlands > >>> Tel: +31-53-4874549 > >>> Fax:+31-53-4874388 > >>> > >>> =============================================================== De > >>> informatie opgenomen in dit bericht kan vertrouwelijk zijn en is > >>> uitsluitend bestemd voor de geadresseerde. Indien u dit bericht > >>> onterecht ontvangt wordt u verzocht de inhoud niet te gebruiken en de > >>> afzender direct te informeren. > >>> =============================================================== The > >>> information contained in this message may be confidential and is > >>> intended to be exclusively for the addressee. Should you receive this > >>> message unrightfully, please do not use the contents herein and > >>> notify the sender immediately by return e-mail. > >>> =============================================================== > >>> > >>> > >>> -----Original Message----- > >>> From: idvusers-bounces@xxxxxxxxxxxxxxxx on behalf of Jeff McWhirter > >>> Sent: Wed 10/3/2007 23:18 > >>> To: Kevin L. Manross > >>> Cc: IDV Users > >>> Subject: Re: [idvusers] Maximum Heap Size > >>> > >>> > >>> Hi Kevin, > >>> I'm sure some folks will chime in with their experience with max > >>> memory size. > >>> > >>> > >>>> Specifically, I'm wanting to display relatively long animations of > >>>> data displaying isosurfaces. > >>>> > >>>> > >>> We have recently added a facility to cache the data to a local disk > >>> store. If you are running a recent build - for grids if you go to the > >>> properties dialog of the data source there is a "Always cache to > >>> disk" checkbox. Turning that on will result in the IDV reading in the > >>> data timestep by timestep right when each timestep is accessed, e.g., > >>> when the display is rendered. Once we read it we write it to disk and > >>> get rid of it from memory. Then, when the data is accessed again > >>> (say, when the display is re-rendered or the data is probed) we read > >>> it back from the local disk. > >>> > >>> The "Delay" field is how long the IDV waits until it gets rid of the > >>> data from memory. For example, if you are probing the data you might > >>> want to increase the delay so the IDV doesn't keep going to disk > >>> every time the probe moves. > >>> > >>> This is a user option because you do take a performance hit in the IO > >>> to local disk. But, it will dramatically reduce memory usage. > >>> > >>> A caveat - this is fairly new the past 6 weeks or so but it seems to > >>> be working pretty well. > >>> > >>> -Jeff > >>> > >>> _______________________________________________ > >>> idvusers mailing list > >>> idvusers@xxxxxxxxxxxxxxxx > >>> For list information, to unsubscribe, visit: > >>> http://www.unidata.ucar.edu/mailing_lists/ > >>> _______________________________________________ > >>> idvusers mailing list > >>> idvusers@xxxxxxxxxxxxxxxx > >>> For list information, to unsubscribe, visit: > >>> http://www.unidata.ucar.edu/mailing_lists/ > >>> > >>> > >>> > > > > > > -- > +-----------------------------------------------------+ > Kevin L. Manross | ** New Address ** > CIMMS Research Associate | 120 David L. Boren Bvd > NSSL : WRDD : SWAT | Rm 3923 > <kevin.manross@xxxxxxxx> | 405.325.6385 > www.cimms.ou.edu/~kmanross | > "My opinions are my own and not representative of > CIMMS, NSSL, NOAA or any affiliates" > +-----------------------------------------------------+ > > _______________________________________________ > idvusers mailing list > idvusers@xxxxxxxxxxxxxxxx > For list information, to unsubscribe, visit: > http://www.unidata.ucar.edu/mailing_lists/ > -- Tom Whittaker University of Wisconsin-Madison Space Science & Engineering Center (SSEC) Cooperative Institute for Meteorological Satellite Studies (CIMSS) 1225 W. Dayton Street Madison, WI 53706 USA ph: +1 608 262 2759
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